diff --git a/src/openrct2-ui/windows/EditorInventionsList.cpp b/src/openrct2-ui/windows/EditorInventionsList.cpp
index 533fb5ddf3..25afd461ba 100644
--- a/src/openrct2-ui/windows/EditorInventionsList.cpp
+++ b/src/openrct2-ui/windows/EditorInventionsList.cpp
@@ -73,8 +73,8 @@ static void window_editor_inventions_list_mouseup(rct_window *w, rct_widgetindex
 static void window_editor_inventions_list_resize(rct_window *w);
 static void window_editor_inventions_list_update(rct_window *w);
 static void window_editor_inventions_list_scrollgetheight(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_editor_inventions_list_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_editor_inventions_list_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_editor_inventions_list_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_editor_inventions_list_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_editor_inventions_list_cursor(rct_window *w, rct_widgetindex widgetIndex, int32_t x, int32_t y, int32_t *cursorId);
 static void window_editor_inventions_list_invalidate(rct_window *w);
 static void window_editor_inventions_list_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -421,11 +421,11 @@ static void window_editor_inventions_list_scrollgetheight(rct_window* w, int32_t
  *
  *  rct2: 0x006852D4
  */
-static void window_editor_inventions_list_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_editor_inventions_list_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     ResearchItem* researchItem;
 
-    researchItem = window_editor_inventions_list_get_item_from_scroll_y(scrollIndex, y);
+    researchItem = window_editor_inventions_list_get_item_from_scroll_y(scrollIndex, screenCoords.y);
     if (researchItem == nullptr)
         return;
 
@@ -441,11 +441,11 @@ static void window_editor_inventions_list_scrollmousedown(rct_window* w, int32_t
  *
  *  rct2: 0x00685275
  */
-static void window_editor_inventions_list_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_editor_inventions_list_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     ResearchItem* researchItem;
 
-    researchItem = window_editor_inventions_list_get_item_from_scroll_y(scrollIndex, y);
+    researchItem = window_editor_inventions_list_get_item_from_scroll_y(scrollIndex, screenCoords.y);
     if (researchItem != w->research_item)
     {
         w->research_item = researchItem;
diff --git a/src/openrct2-ui/windows/EditorObjectSelection.cpp b/src/openrct2-ui/windows/EditorObjectSelection.cpp
index 873415afa9..069dc10eaf 100644
--- a/src/openrct2-ui/windows/EditorObjectSelection.cpp
+++ b/src/openrct2-ui/windows/EditorObjectSelection.cpp
@@ -176,8 +176,8 @@ static void window_editor_object_selection_mousedown(rct_window *w, rct_widgetin
 static void window_editor_object_selection_dropdown(rct_window *w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_editor_object_selection_update(rct_window *w);
 static void window_editor_object_selection_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_editor_object_selection_scroll_mousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_editor_object_selection_scroll_mouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_editor_object_selection_scroll_mousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_editor_object_selection_scroll_mouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_editor_object_selection_tooltip(rct_window* w, rct_widgetindex widgetIndex, rct_string_id *stringId);
 static void window_editor_object_selection_invalidate(rct_window *w);
 static void window_editor_object_selection_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -680,13 +680,13 @@ static void window_editor_object_selection_scrollgetsize(rct_window* w, int32_t
  *
  *  rct2: 0x006AB0B6
  */
-static void window_editor_object_selection_scroll_mousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_editor_object_selection_scroll_mousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     // Used for in-game object selection cheat to prevent crashing the game
     // when windows attempt to draw objects that don't exist any more
     window_close_all_except_class(WC_EDITOR_OBJECT_SELECTION);
 
-    int32_t selected_object = get_object_from_object_selection(get_selected_object_type(w), y);
+    int32_t selected_object = get_object_from_object_selection(get_selected_object_type(w), screenCoords.y);
     if (selected_object == -1)
         return;
 
@@ -745,9 +745,9 @@ static void window_editor_object_selection_scroll_mousedown(rct_window* w, int32
  *
  *  rct2: 0x006AB079
  */
-static void window_editor_object_selection_scroll_mouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_editor_object_selection_scroll_mouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    int32_t selectedObject = get_object_from_object_selection(get_selected_object_type(w), y);
+    int32_t selectedObject = get_object_from_object_selection(get_selected_object_type(w), screenCoords.y);
     if (selectedObject != -1)
     {
         list_item* listItem = &_listItems[selectedObject];
diff --git a/src/openrct2-ui/windows/EditorObjectiveOptions.cpp b/src/openrct2-ui/windows/EditorObjectiveOptions.cpp
index f8aecd0e00..471e2118cb 100644
--- a/src/openrct2-ui/windows/EditorObjectiveOptions.cpp
+++ b/src/openrct2-ui/windows/EditorObjectiveOptions.cpp
@@ -131,8 +131,8 @@ static void window_editor_objective_options_rides_mouseup(rct_window *w, rct_wid
 static void window_editor_objective_options_rides_resize(rct_window *w);
 static void window_editor_objective_options_rides_update(rct_window *w);
 static void window_editor_objective_options_rides_scrollgetheight(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_editor_objective_options_rides_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_editor_objective_options_rides_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_editor_objective_options_rides_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_editor_objective_options_rides_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_editor_objective_options_rides_invalidate(rct_window *w);
 static void window_editor_objective_options_rides_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_editor_objective_options_rides_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -1066,9 +1066,10 @@ static void window_editor_objective_options_rides_scrollgetheight(
  *
  *  rct2: 0x006724FC
  */
-static void window_editor_objective_options_rides_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_editor_objective_options_rides_scrollmousedown(
+    rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    auto i = y / 12;
+    auto i = screenCoords.y / 12;
     if (i < 0 || i >= w->no_list_items)
         return;
 
@@ -1084,11 +1085,12 @@ static void window_editor_objective_options_rides_scrollmousedown(rct_window* w,
  *
  *  rct2: 0x006724CC
  */
-static void window_editor_objective_options_rides_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_editor_objective_options_rides_scrollmouseover(
+    rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t i;
 
-    i = y / 12;
+    i = screenCoords.y / 12;
     if (i < 0 || i >= w->no_list_items)
         return;
 
diff --git a/src/openrct2-ui/windows/Guest.cpp b/src/openrct2-ui/windows/Guest.cpp
index 6c7552861b..0e991917e7 100644
--- a/src/openrct2-ui/windows/Guest.cpp
+++ b/src/openrct2-ui/windows/Guest.cpp
@@ -162,8 +162,8 @@ static void window_guest_stats_paint(rct_window *w, rct_drawpixelinfo *dpi);
 
 static void window_guest_rides_update(rct_window *w);
 static void window_guest_rides_scroll_get_size(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_guest_rides_scroll_mouse_down(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_guest_rides_scroll_mouse_over(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_guest_rides_scroll_mouse_down(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_guest_rides_scroll_mouse_over(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_guest_rides_invalidate(rct_window *w);
 static void window_guest_rides_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_guest_rides_scroll_paint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -1631,11 +1631,11 @@ void window_guest_rides_scroll_get_size(rct_window* w, int32_t scrollIndex, int3
  *
  *  rct2: 0x006978CC
  */
-void window_guest_rides_scroll_mouse_down(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_guest_rides_scroll_mouse_down(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / 10;
+    index = screenCoords.y / 10;
     if (index >= w->no_list_items)
         return;
 
@@ -1648,11 +1648,11 @@ void window_guest_rides_scroll_mouse_down(rct_window* w, int32_t scrollIndex, in
  *
  *  rct2: 0x0069789C
  */
-void window_guest_rides_scroll_mouse_over(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_guest_rides_scroll_mouse_over(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / 10;
+    index = screenCoords.y / 10;
     if (index >= w->no_list_items)
         return;
 
diff --git a/src/openrct2-ui/windows/GuestList.cpp b/src/openrct2-ui/windows/GuestList.cpp
index 23e4260b4e..5c42b1046d 100644
--- a/src/openrct2-ui/windows/GuestList.cpp
+++ b/src/openrct2-ui/windows/GuestList.cpp
@@ -97,8 +97,8 @@ static void window_guest_list_mousedown(rct_window *w, rct_widgetindex widgetInd
 static void window_guest_list_dropdown(rct_window *w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_guest_list_update(rct_window *w);
 static void window_guest_list_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_guest_list_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_guest_list_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_guest_list_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_guest_list_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_guest_list_invalidate(rct_window *w);
 static void window_guest_list_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_guest_list_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -553,7 +553,7 @@ static void window_guest_list_scrollgetsize(rct_window* w, int32_t scrollIndex,
  *
  *  rct2: 0x00699D7D
  */
-static void window_guest_list_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_guest_list_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t i, spriteIndex;
     Peep* peep;
@@ -561,7 +561,7 @@ static void window_guest_list_scrollmousedown(rct_window* w, int32_t scrollIndex
     switch (_window_guest_list_selected_tab)
     {
         case PAGE_INDIVIDUAL:
-            i = y / SCROLLABLE_ROW_HEIGHT;
+            i = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
             i += _window_guest_list_selected_page * GUESTS_PER_PAGE;
             FOR_ALL_GUESTS (spriteIndex, peep)
             {
@@ -587,7 +587,7 @@ static void window_guest_list_scrollmousedown(rct_window* w, int32_t scrollIndex
             }
             break;
         case PAGE_SUMMARISED:
-            i = y / SUMMARISED_GUEST_ROW_HEIGHT;
+            i = screenCoords.y / SUMMARISED_GUEST_ROW_HEIGHT;
             if (i < _window_guest_list_num_groups)
             {
                 _window_guest_list_filter_arguments = _window_guest_list_groups_arguments[i];
@@ -605,11 +605,12 @@ static void window_guest_list_scrollmousedown(rct_window* w, int32_t scrollIndex
  *
  *  rct2: 0x00699D3B
  */
-static void window_guest_list_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_guest_list_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t i;
 
-    i = y / (_window_guest_list_selected_tab == PAGE_INDIVIDUAL ? SCROLLABLE_ROW_HEIGHT : SUMMARISED_GUEST_ROW_HEIGHT);
+    i = screenCoords.y
+        / (_window_guest_list_selected_tab == PAGE_INDIVIDUAL ? SCROLLABLE_ROW_HEIGHT : SUMMARISED_GUEST_ROW_HEIGHT);
     i += _window_guest_list_selected_page * GUESTS_PER_PAGE;
     if (i != _window_guest_list_highlighted_index)
     {
diff --git a/src/openrct2-ui/windows/LoadSave.cpp b/src/openrct2-ui/windows/LoadSave.cpp
index d4e9dc2c4e..ccf06d433b 100644
--- a/src/openrct2-ui/windows/LoadSave.cpp
+++ b/src/openrct2-ui/windows/LoadSave.cpp
@@ -84,8 +84,8 @@ static void window_loadsave_close(rct_window *w);
 static void window_loadsave_mouseup(rct_window *w, rct_widgetindex widgetIndex);
 static void window_loadsave_resize(rct_window *w);
 static void window_loadsave_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_loadsave_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_loadsave_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_loadsave_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_loadsave_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_loadsave_textinput(rct_window *w, rct_widgetindex widgetIndex, char *text);
 static void window_loadsave_compute_max_date_width();
 static void window_loadsave_invalidate(rct_window *w);
@@ -527,11 +527,11 @@ static void window_loadsave_scrollgetsize(rct_window* w, int32_t scrollIndex, in
     *height = w->no_list_items * SCROLLABLE_ROW_HEIGHT;
 }
 
-static void window_loadsave_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_loadsave_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t selectedItem;
 
-    selectedItem = y / SCROLLABLE_ROW_HEIGHT;
+    selectedItem = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (selectedItem >= w->no_list_items)
         return;
 
@@ -563,11 +563,11 @@ static void window_loadsave_scrollmousedown(rct_window* w, int32_t scrollIndex,
     }
 }
 
-static void window_loadsave_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_loadsave_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t selectedItem;
 
-    selectedItem = y / SCROLLABLE_ROW_HEIGHT;
+    selectedItem = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (selectedItem >= w->no_list_items)
         return;
 
diff --git a/src/openrct2-ui/windows/Map.cpp b/src/openrct2-ui/windows/Map.cpp
index 88c364ded2..cd312ae30f 100644
--- a/src/openrct2-ui/windows/Map.cpp
+++ b/src/openrct2-ui/windows/Map.cpp
@@ -128,7 +128,7 @@ static void window_map_tooldown(rct_window* w, rct_widgetindex widgetIndex, Scre
 static void window_map_tooldrag(rct_window* w, rct_widgetindex widgetIndex, ScreenCoordsXY screenCoords);
 static void window_map_toolabort(rct_window *w, rct_widgetindex widgetIndex);
 static void window_map_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_map_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_map_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_map_textinput(rct_window *w, rct_widgetindex widgetIndex, char *text);
 static void window_map_invalidate(rct_window *w);
 static void window_map_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -196,7 +196,7 @@ static void map_window_increase_map_size();
 static void map_window_decrease_map_size();
 static void map_window_set_pixels(rct_window* w);
 
-static CoordsXY map_window_screen_to_map(int32_t screenX, int32_t screenY);
+static CoordsXY map_window_screen_to_map(ScreenCoordsXY screenCoords);
 
 /**
  *
@@ -561,12 +561,12 @@ static void window_map_scrollgetsize(rct_window* w, int32_t scrollIndex, int32_t
  *
  *  rct2: 0x0068D726
  */
-static void window_map_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_map_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    CoordsXY c = map_window_screen_to_map(x, y);
+    CoordsXY c = map_window_screen_to_map(screenCoords);
     int32_t mapX = std::clamp(c.x, 0, MAXIMUM_MAP_SIZE_TECHNICAL * 32 - 1);
     int32_t mapY = std::clamp(c.y, 0, MAXIMUM_MAP_SIZE_TECHNICAL * 32 - 1);
-    int32_t mapZ = tile_element_height({ x, y });
+    int32_t mapZ = tile_element_height({ screenCoords.x, screenCoords.y });
 
     rct_window* mainWindow = window_get_main();
     if (mainWindow != nullptr)
@@ -1681,12 +1681,12 @@ static void map_window_set_pixels(rct_window* w)
         _currentLine = 0;
 }
 
-static CoordsXY map_window_screen_to_map(int32_t screenX, int32_t screenY)
+static CoordsXY map_window_screen_to_map(ScreenCoordsXY screenCoords)
 {
-    screenX = ((screenX + 8) - MAXIMUM_MAP_SIZE_TECHNICAL) / 2;
-    screenY = ((screenY + 8)) / 2;
-    int32_t x = (screenY - screenX) * 32;
-    int32_t y = (screenX + screenY) * 32;
+    screenCoords.x = ((screenCoords.x + 8) - MAXIMUM_MAP_SIZE_TECHNICAL) / 2;
+    screenCoords.y = ((screenCoords.y + 8)) / 2;
+    int32_t x = (screenCoords.y - screenCoords.x) * 32;
+    int32_t y = (screenCoords.x + screenCoords.y) * 32;
 
     switch (get_current_rotation())
     {
diff --git a/src/openrct2-ui/windows/Multiplayer.cpp b/src/openrct2-ui/windows/Multiplayer.cpp
index f33b7167d5..02ca9b7984 100644
--- a/src/openrct2-ui/windows/Multiplayer.cpp
+++ b/src/openrct2-ui/windows/Multiplayer.cpp
@@ -136,8 +136,8 @@ static void window_multiplayer_players_mouseup(rct_window *w, rct_widgetindex wi
 static void window_multiplayer_players_resize(rct_window *w);
 static void window_multiplayer_players_update(rct_window *w);
 static void window_multiplayer_players_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_multiplayer_players_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_multiplayer_players_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_multiplayer_players_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_multiplayer_players_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_multiplayer_players_invalidate(rct_window *w);
 static void window_multiplayer_players_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_multiplayer_players_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -148,8 +148,8 @@ static void window_multiplayer_groups_mousedown(rct_window *w, rct_widgetindex w
 static void window_multiplayer_groups_dropdown(rct_window *w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_multiplayer_groups_update(rct_window *w);
 static void window_multiplayer_groups_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_multiplayer_groups_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_multiplayer_groups_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_multiplayer_groups_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_multiplayer_groups_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_multiplayer_groups_text_input(rct_window *w, rct_widgetindex widgetIndex, char *text);
 static void window_multiplayer_groups_invalidate(rct_window *w);
 static void window_multiplayer_groups_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -591,11 +591,11 @@ static void window_multiplayer_players_scrollgetsize(rct_window* w, int32_t scro
     }
 }
 
-static void window_multiplayer_players_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_multiplayer_players_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / SCROLLABLE_ROW_HEIGHT;
+    index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index >= w->no_list_items)
         return;
 
@@ -605,11 +605,11 @@ static void window_multiplayer_players_scrollmousedown(rct_window* w, int32_t sc
     window_player_open(network_get_player_id(index));
 }
 
-static void window_multiplayer_players_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_multiplayer_players_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / SCROLLABLE_ROW_HEIGHT;
+    index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index >= w->no_list_items)
         return;
 
@@ -836,11 +836,11 @@ static void window_multiplayer_groups_scrollgetsize(rct_window* w, int32_t scrol
     }
 }
 
-static void window_multiplayer_groups_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_multiplayer_groups_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / SCROLLABLE_ROW_HEIGHT;
+    index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index >= w->no_list_items)
         return;
 
@@ -852,11 +852,11 @@ static void window_multiplayer_groups_scrollmousedown(rct_window* w, int32_t scr
     GameActions::Execute(&networkModifyGroup);
 }
 
-static void window_multiplayer_groups_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_multiplayer_groups_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / SCROLLABLE_ROW_HEIGHT;
+    index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index >= w->no_list_items)
         return;
 
diff --git a/src/openrct2-ui/windows/NewRide.cpp b/src/openrct2-ui/windows/NewRide.cpp
index 6815ce2c11..efb571db29 100644
--- a/src/openrct2-ui/windows/NewRide.cpp
+++ b/src/openrct2-ui/windows/NewRide.cpp
@@ -207,8 +207,8 @@ static void window_new_ride_mouseup(rct_window *w, rct_widgetindex widgetIndex);
 static void window_new_ride_mousedown(rct_window *w, rct_widgetindex widgetIndex, rct_widget *widget);
 static void window_new_ride_update(rct_window *w);
 static void window_new_ride_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_new_ride_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_new_ride_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_new_ride_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_new_ride_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_new_ride_invalidate(rct_window *w);
 static void window_new_ride_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_new_ride_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -264,7 +264,7 @@ static constexpr const int32_t window_new_ride_tab_animation_divisor[] = { 4, 8,
 
 static void window_new_ride_set_page(rct_window* w, int32_t page);
 static void window_new_ride_refresh_widget_sizing(rct_window* w);
-static ride_list_item window_new_ride_scroll_get_ride_list_item_at(rct_window* w, int32_t x, int32_t y);
+static ride_list_item window_new_ride_scroll_get_ride_list_item_at(rct_window* w, ScreenCoordsXY screenCoords);
 static void window_new_ride_paint_ride_information(
     rct_window* w, rct_drawpixelinfo* dpi, ride_list_item item, int32_t x, int32_t y, int32_t width);
 static void window_new_ride_select(rct_window* w);
@@ -763,11 +763,11 @@ static void window_new_ride_scrollgetsize(rct_window* w, int32_t scrollIndex, in
  *
  *  rct2: 0x006B6C89
  */
-static void window_new_ride_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_new_ride_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     ride_list_item item;
 
-    item = window_new_ride_scroll_get_ride_list_item_at(w, x, y);
+    item = window_new_ride_scroll_get_ride_list_item_at(w, screenCoords);
     if (item.type == RIDE_TYPE_NULL && item.entry_index == RIDE_ENTRY_INDEX_NULL)
         return;
 
@@ -783,14 +783,14 @@ static void window_new_ride_scrollmousedown(rct_window* w, int32_t scrollIndex,
  *
  *  rct2: 0x006B6C51
  */
-static void window_new_ride_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_new_ride_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     ride_list_item item;
 
     if (w->new_ride.selected_ride_id != -1)
         return;
 
-    item = window_new_ride_scroll_get_ride_list_item_at(w, x, y);
+    item = window_new_ride_scroll_get_ride_list_item_at(w, screenCoords);
 
     if (w->new_ride.highlighted_ride_id == item.ride_type_and_entry)
         return;
@@ -903,17 +903,17 @@ static void window_new_ride_scrollpaint(rct_window* w, rct_drawpixelinfo* dpi, i
  *
  *  rct2: 0x006B6D3C
  */
-static ride_list_item window_new_ride_scroll_get_ride_list_item_at(rct_window* w, int32_t x, int32_t y)
+static ride_list_item window_new_ride_scroll_get_ride_list_item_at(rct_window* w, ScreenCoordsXY screenCoords)
 {
     ride_list_item result;
     result.type = RIDE_TYPE_NULL;
     result.entry_index = RIDE_ENTRY_INDEX_NULL;
 
-    if (--x < 0 || --y < 0)
+    if (--screenCoords.x < 0 || --screenCoords.y < 0)
         return result;
 
-    int32_t column = x / 116;
-    int32_t row = y / 116;
+    int32_t column = screenCoords.x / 116;
+    int32_t row = screenCoords.y / 116;
     if (column >= 5)
         return result;
 
diff --git a/src/openrct2-ui/windows/News.cpp b/src/openrct2-ui/windows/News.cpp
index 7eb4eb35b2..ecd6f4cdb3 100644
--- a/src/openrct2-ui/windows/News.cpp
+++ b/src/openrct2-ui/windows/News.cpp
@@ -40,7 +40,7 @@ static rct_widget window_news_widgets[] = {
 static void window_news_mouseup(rct_window *w, rct_widgetindex widgetIndex);
 static void window_news_update(rct_window *w);
 static void window_news_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_news_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_news_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_news_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_news_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
 
@@ -199,7 +199,7 @@ static void window_news_scrollgetsize(rct_window* w, int32_t scrollIndex, int32_
  *
  *  rct2: 0x0066EA5C
  */
-static void window_news_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_news_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t itemHeight = window_news_get_item_height();
     int32_t i, buttonIndex;
@@ -210,26 +210,26 @@ static void window_news_scrollmousedown(rct_window* w, int32_t scrollIndex, int3
         if (news_item_is_empty(i))
             break;
 
-        if (y < itemHeight)
+        if (screenCoords.y < itemHeight)
         {
             NewsItem* const newsItem = news_item_get(i);
-            if (newsItem->Flags & NEWS_FLAG_HAS_BUTTON || y < 14 || y >= 38 || x < 328)
+            if (newsItem->Flags & NEWS_FLAG_HAS_BUTTON || screenCoords.y < 14 || screenCoords.y >= 38 || screenCoords.x < 328)
             {
                 buttonIndex = 0;
                 break;
             }
-            else if (x < 351 && news_type_properties[newsItem->Type] & NEWS_TYPE_HAS_SUBJECT)
+            else if (screenCoords.x < 351 && news_type_properties[newsItem->Type] & NEWS_TYPE_HAS_SUBJECT)
             {
                 buttonIndex = 1;
                 break;
             }
-            else if (x < 376 && news_type_properties[newsItem->Type] & NEWS_TYPE_HAS_LOCATION)
+            else if (screenCoords.x < 376 && news_type_properties[newsItem->Type] & NEWS_TYPE_HAS_LOCATION)
             {
                 buttonIndex = 2;
                 break;
             }
         }
-        y -= itemHeight;
+        screenCoords.y -= itemHeight;
     }
 
     if (buttonIndex != 0)
diff --git a/src/openrct2-ui/windows/ObjectLoadError.cpp b/src/openrct2-ui/windows/ObjectLoadError.cpp
index 84fbecbcc8..9cd93d4af9 100644
--- a/src/openrct2-ui/windows/ObjectLoadError.cpp
+++ b/src/openrct2-ui/windows/ObjectLoadError.cpp
@@ -291,8 +291,8 @@ static void window_object_load_error_close(rct_window *w);
 static void window_object_load_error_update(rct_window *w);
 static void window_object_load_error_mouseup(rct_window *w, rct_widgetindex widgetIndex);
 static void window_object_load_error_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_object_load_error_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_object_load_error_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_object_load_error_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_object_load_error_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_object_load_error_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_object_load_error_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
 #ifndef DISABLE_HTTP
@@ -519,11 +519,11 @@ static void window_object_load_error_mouseup(rct_window* w, rct_widgetindex widg
     }
 }
 
-static void window_object_load_error_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_object_load_error_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     // Highlight item that the cursor is over, or remove highlighting if none
     int32_t selected_item;
-    selected_item = y / SCROLLABLE_ROW_HEIGHT;
+    selected_item = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (selected_item < 0 || selected_item >= w->no_list_items)
         highlighted_index = -1;
     else
@@ -545,10 +545,10 @@ static void window_object_load_error_select_element_from_list(rct_window* w, int
     widget_invalidate(w, WIDX_SCROLL);
 }
 
-static void window_object_load_error_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_object_load_error_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t selected_item;
-    selected_item = y / SCROLLABLE_ROW_HEIGHT;
+    selected_item = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     window_object_load_error_select_element_from_list(w, selected_item);
 }
 
diff --git a/src/openrct2-ui/windows/RideList.cpp b/src/openrct2-ui/windows/RideList.cpp
index 08e341fe75..a528599c57 100644
--- a/src/openrct2-ui/windows/RideList.cpp
+++ b/src/openrct2-ui/windows/RideList.cpp
@@ -77,8 +77,8 @@ static void window_ride_list_mousedown(rct_window *w, rct_widgetindex widgetInde
 static void window_ride_list_dropdown(rct_window *w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_ride_list_update(rct_window *w);
 static void window_ride_list_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_ride_list_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_ride_list_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_ride_list_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_ride_list_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_ride_list_invalidate(rct_window *w);
 static void window_ride_list_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_ride_list_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -442,11 +442,11 @@ static void window_ride_list_scrollgetsize(rct_window* w, int32_t scrollIndex, i
  *
  *  rct2: 0x006B361F
  */
-static void window_ride_list_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_ride_list_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / SCROLLABLE_ROW_HEIGHT;
+    index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index >= w->no_list_items)
         return;
 
@@ -470,11 +470,11 @@ static void window_ride_list_scrollmousedown(rct_window* w, int32_t scrollIndex,
  *
  *  rct2: 0x006B35EF
  */
-static void window_ride_list_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_ride_list_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t index;
 
-    index = y / SCROLLABLE_ROW_HEIGHT;
+    index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index >= w->no_list_items)
         return;
 
diff --git a/src/openrct2-ui/windows/Scenery.cpp b/src/openrct2-ui/windows/Scenery.cpp
index 3f09049407..57b673690a 100644
--- a/src/openrct2-ui/windows/Scenery.cpp
+++ b/src/openrct2-ui/windows/Scenery.cpp
@@ -64,8 +64,8 @@ static void window_scenery_dropdown(rct_window *w, rct_widgetindex widgetIndex,
 static void window_scenery_update(rct_window *w);
 static void window_scenery_periodic_update(rct_window *w);
 static void window_scenery_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_scenery_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_scenery_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_scenery_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_scenery_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_scenery_tooltip(rct_window* w, rct_widgetindex widgetIndex, rct_string_id *stringId);
 static void window_scenery_invalidate(rct_window *w);
 static void window_scenery_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -855,9 +855,9 @@ void window_scenery_scrollgetsize(rct_window* w, int32_t scrollIndex, int32_t* w
     *height = window_scenery_rows_height(rows);
 }
 
-static uint16_t get_scenery_id_by_cursor_pos(int16_t x, int16_t y)
+static uint16_t get_scenery_id_by_cursor_pos(ScreenCoordsXY screenCoords)
 {
-    int32_t tabSceneryIndex = x / SCENERY_BUTTON_WIDTH + (y / SCENERY_BUTTON_HEIGHT) * 9;
+    int32_t tabSceneryIndex = screenCoords.x / SCENERY_BUTTON_WIDTH + (screenCoords.y / SCENERY_BUTTON_HEIGHT) * 9;
     uint8_t tabIndex = gWindowSceneryActiveTabIndex;
 
     int32_t itemCounter = 0;
@@ -878,9 +878,9 @@ static uint16_t get_scenery_id_by_cursor_pos(int16_t x, int16_t y)
  *
  *  rct2: 0x006E1C4A
  */
-void window_scenery_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_scenery_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    uint16_t sceneryId = get_scenery_id_by_cursor_pos(x, y);
+    uint16_t sceneryId = get_scenery_id_by_cursor_pos(screenCoords);
     if (sceneryId == WINDOW_SCENERY_TAB_SELECTION_UNDEFINED)
         return;
 
@@ -899,9 +899,9 @@ void window_scenery_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t
  *
  *  rct2: 0x006E1BB8
  */
-void window_scenery_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_scenery_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    uint16_t sceneryId = get_scenery_id_by_cursor_pos(x, y);
+    uint16_t sceneryId = get_scenery_id_by_cursor_pos(screenCoords);
     if (sceneryId != WINDOW_SCENERY_TAB_SELECTION_UNDEFINED)
     {
         w->scenery.selected_scenery_id = sceneryId;
diff --git a/src/openrct2-ui/windows/ServerList.cpp b/src/openrct2-ui/windows/ServerList.cpp
index 85149d150a..ec62fa2041 100644
--- a/src/openrct2-ui/windows/ServerList.cpp
+++ b/src/openrct2-ui/windows/ServerList.cpp
@@ -76,8 +76,8 @@ static void window_server_list_resize(rct_window *w);
 static void window_server_list_dropdown(rct_window *w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_server_list_update(rct_window *w);
 static void window_server_list_scroll_getsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_server_list_scroll_mousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_server_list_scroll_mouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_server_list_scroll_mousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_server_list_scroll_mouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_server_list_textinput(rct_window *w, rct_widgetindex widgetIndex, char *text);
 static void window_server_list_invalidate(rct_window *w);
 static void window_server_list_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -265,7 +265,7 @@ static void window_server_list_scroll_getsize(rct_window* w, int32_t scrollIndex
     *height = w->no_list_items * ITEM_HEIGHT;
 }
 
-static void window_server_list_scroll_mousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_server_list_scroll_mousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t serverIndex = w->selected_list_item;
     if (serverIndex >= 0 && serverIndex < (int32_t)_serverList.GetCount())
@@ -273,8 +273,8 @@ static void window_server_list_scroll_mousedown(rct_window* w, int32_t scrollInd
         const auto& server = _serverList.GetServer(serverIndex);
 
         auto listWidget = &w->widgets[WIDX_LIST];
-        int32_t ddx = w->x + listWidget->left + x + 2 - w->scrolls[0].h_left;
-        int32_t ddy = w->y + listWidget->top + y + 2 - w->scrolls[0].v_top;
+        int32_t ddx = w->x + listWidget->left + screenCoords.x + 2 - w->scrolls[0].h_left;
+        int32_t ddy = w->y + listWidget->top + screenCoords.y + 2 - w->scrolls[0].v_top;
 
         gDropdownItemsFormat[0] = STR_JOIN_GAME;
         if (server.favourite)
@@ -289,10 +289,10 @@ static void window_server_list_scroll_mousedown(rct_window* w, int32_t scrollInd
     }
 }
 
-static void window_server_list_scroll_mouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_server_list_scroll_mouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     // Item
-    int32_t index = y / ITEM_HEIGHT;
+    int32_t index = screenCoords.y / ITEM_HEIGHT;
     if (index < 0 || index >= w->no_list_items)
     {
         index = -1;
@@ -308,7 +308,7 @@ static void window_server_list_scroll_mouseover(rct_window* w, int32_t scrollInd
             int32_t bx, by;
 
             server_list_get_item_button(i, 0, sy, width, &bx, &by);
-            if (x >= bx && y >= by && x < bx + 24 && y < by + 24)
+            if (screenCoords.x >= bx && screenCoords.y >= by && screenCoords.x < bx + 24 && screenCoords.y < by + 24)
             {
                 hoverButtonIndex = i;
                 break;
@@ -318,7 +318,7 @@ static void window_server_list_scroll_mouseover(rct_window* w, int32_t scrollInd
 
     int32_t width = w->widgets[WIDX_LIST].right - w->widgets[WIDX_LIST].left;
     int32_t right = width - 3 - 14 - 10;
-    if (x < right)
+    if (screenCoords.x < right)
     {
         w->widgets[WIDX_LIST].tooltip = STR_NONE;
         window_tooltip_close();
diff --git a/src/openrct2-ui/windows/ShortcutKeys.cpp b/src/openrct2-ui/windows/ShortcutKeys.cpp
index 9854f47268..866ed34ccf 100644
--- a/src/openrct2-ui/windows/ShortcutKeys.cpp
+++ b/src/openrct2-ui/windows/ShortcutKeys.cpp
@@ -45,8 +45,8 @@ static void window_shortcut_resize(rct_window *w);
 static void window_shortcut_invalidate(rct_window *w);
 static void window_shortcut_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_shortcut_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_shortcut_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_shortcut_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_shortcut_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_shortcut_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_shortcut_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
 
 static rct_window_event_list window_shortcut_events = {
@@ -238,9 +238,9 @@ static void window_shortcut_scrollgetsize(rct_window* w, int32_t scrollIndex, in
  *
  *  rct2: 0x006E3A3E
  */
-static void window_shortcut_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_shortcut_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    int32_t selected_item = (y - 1) / SCROLLABLE_ROW_HEIGHT;
+    int32_t selected_item = (screenCoords.y - 1) / SCROLLABLE_ROW_HEIGHT;
     if (selected_item >= w->no_list_items)
         return;
 
@@ -251,9 +251,9 @@ static void window_shortcut_scrollmousedown(rct_window* w, int32_t scrollIndex,
  *
  *  rct2: 0x006E3A16
  */
-static void window_shortcut_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_shortcut_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    int32_t selected_item = (y - 1) / SCROLLABLE_ROW_HEIGHT;
+    int32_t selected_item = (screenCoords.y - 1) / SCROLLABLE_ROW_HEIGHT;
     if (selected_item >= w->no_list_items)
         return;
 
diff --git a/src/openrct2-ui/windows/StaffList.cpp b/src/openrct2-ui/windows/StaffList.cpp
index 9f0d95ba31..c35228372e 100644
--- a/src/openrct2-ui/windows/StaffList.cpp
+++ b/src/openrct2-ui/windows/StaffList.cpp
@@ -48,8 +48,8 @@ static void window_staff_list_update(rct_window *w);
 static void window_staff_list_tooldown(rct_window *w, rct_widgetindex widgetIndex, ScreenCoordsXY screenCoords);
 static void window_staff_list_toolabort(rct_window *w, rct_widgetindex widgetIndex);
 static void window_staff_list_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_staff_list_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_staff_list_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_staff_list_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_staff_list_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_staff_list_invalidate(rct_window *w);
 static void window_staff_list_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_staff_list_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -453,12 +453,12 @@ void window_staff_list_scrollgetsize(rct_window* w, int32_t scrollIndex, int32_t
  *
  *  rct2: 0x006BDC9A
  */
-void window_staff_list_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_staff_list_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t i, spriteIndex;
     Peep* peep;
 
-    i = y / SCROLLABLE_ROW_HEIGHT;
+    i = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     FOR_ALL_STAFF (spriteIndex, peep)
     {
         if (peep->staff_type != _windowStaffListSelectedTab)
@@ -488,11 +488,11 @@ void window_staff_list_scrollmousedown(rct_window* w, int32_t scrollIndex, int32
  *
  *  rct2: 0x006BDC6B
  */
-void window_staff_list_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_staff_list_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     int32_t i;
 
-    i = y / SCROLLABLE_ROW_HEIGHT;
+    i = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (i != _windowStaffListHighlightedIndex)
     {
         _windowStaffListHighlightedIndex = i;
diff --git a/src/openrct2-ui/windows/Themes.cpp b/src/openrct2-ui/windows/Themes.cpp
index 23ca6433e3..a4faba8051 100644
--- a/src/openrct2-ui/windows/Themes.cpp
+++ b/src/openrct2-ui/windows/Themes.cpp
@@ -41,8 +41,8 @@ static void window_themes_mousedown(rct_window *w, rct_widgetindex widgetIndex,
 static void window_themes_dropdown(rct_window *w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_themes_update(rct_window *w);
 static void window_themes_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_themes_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_themes_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_themes_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_themes_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_themes_textinput(rct_window *w, rct_widgetindex widgetIndex, char *text);
 static void window_themes_invalidate(rct_window *w);
 static void window_themes_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -635,19 +635,20 @@ void window_themes_scrollgetsize(rct_window* w, int32_t scrollIndex, int32_t* wi
     *height = scrollHeight;
 }
 
-void window_themes_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_themes_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    if (y / _row_height < get_colour_scheme_tab_count())
+    if (screenCoords.y / _row_height < get_colour_scheme_tab_count())
     {
-        int32_t y2 = y % _row_height;
-        _colour_index_1 = y / _row_height;
-        _colour_index_2 = ((x - _button_offset_x) / 12);
+        int32_t y2 = screenCoords.y % _row_height;
+        _colour_index_1 = screenCoords.y / _row_height;
+        _colour_index_2 = ((screenCoords.x - _button_offset_x) / 12);
 
         rct_windowclass wc = get_window_class_tab_index(_colour_index_1);
         int32_t numColours = theme_desc_get_num_colours(wc);
         if (_colour_index_2 < numColours)
         {
-            if (x >= _button_offset_x && x < _button_offset_x + 12 * 6 && y2 >= _button_offset_y && y2 < _button_offset_y + 11)
+            if (screenCoords.x >= _button_offset_x && screenCoords.x < _button_offset_x + 12 * 6 && y2 >= _button_offset_y
+                && y2 < _button_offset_y + 11)
             {
                 if (theme_get_flags() & UITHEME_FLAG_PREDEFINED)
                 {
@@ -673,7 +674,7 @@ void window_themes_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x
                 }
             }
             else if (
-                x >= _button_offset_x && x < _button_offset_x + 12 * 6 - 1 && y2 >= _check_offset_y
+                screenCoords.x >= _button_offset_x && screenCoords.x < _button_offset_x + 12 * 6 - 1 && y2 >= _check_offset_y
                 && y2 < _check_offset_y + 11)
             {
                 if (theme_get_flags() & UITHEME_FLAG_PREDEFINED)
@@ -700,7 +701,7 @@ void window_themes_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x
     }
 }
 
-void window_themes_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+void window_themes_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     // if (_selected_tab == WINDOW_THEMES_TAB_SETTINGS)
     //  return;
diff --git a/src/openrct2-ui/windows/TileInspector.cpp b/src/openrct2-ui/windows/TileInspector.cpp
index 89ed98bc43..f8bfb9cbc0 100644
--- a/src/openrct2-ui/windows/TileInspector.cpp
+++ b/src/openrct2-ui/windows/TileInspector.cpp
@@ -461,8 +461,8 @@ static void window_tile_inspector_update_selected_tile(rct_window* w, int32_t x,
 static void window_tile_inspector_tool_down(rct_window* w, rct_widgetindex widgetIndex, ScreenCoordsXY screenCoords);
 static void window_tile_inspector_tool_drag(rct_window* w, rct_widgetindex widgetIndex, ScreenCoordsXY screenCoords);
 static void window_tile_inspector_scrollgetsize(rct_window* w, int32_t scrollIndex, int32_t* width, int32_t* height);
-static void window_tile_inspector_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_tile_inspector_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_tile_inspector_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_tile_inspector_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_tile_inspector_invalidate(rct_window* w);
 static void window_tile_inspector_paint(rct_window* w, rct_drawpixelinfo* dpi);
 static void window_tile_inspector_scrollpaint(rct_window* w, rct_drawpixelinfo* dpi, int32_t scrollIndex);
@@ -1350,16 +1350,16 @@ static void window_tile_inspector_set_page(rct_window* w, const TILE_INSPECTOR_P
     w->pressed_widgets = 0;
 }
 
-static void window_tile_inspector_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_tile_inspector_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     // Because the list items are displayed in reverse order, subtract the calculated index from the amount of elements
-    const int16_t index = windowTileInspectorElementCount - (y - 1) / SCROLLABLE_ROW_HEIGHT - 1;
+    const int16_t index = windowTileInspectorElementCount - (screenCoords.y - 1) / SCROLLABLE_ROW_HEIGHT - 1;
     window_tile_inspector_select_element_from_list(w, index);
 }
 
-static void window_tile_inspector_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_tile_inspector_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    int16_t index = windowTileInspectorElementCount - (y - 1) / SCROLLABLE_ROW_HEIGHT - 1;
+    int16_t index = windowTileInspectorElementCount - (screenCoords.y - 1) / SCROLLABLE_ROW_HEIGHT - 1;
     if (index < 0 || index >= windowTileInspectorElementCount)
         windowTileInspectorHighlightedIndex = -1;
     else
diff --git a/src/openrct2-ui/windows/TitleEditor.cpp b/src/openrct2-ui/windows/TitleEditor.cpp
index c47cf68869..daacbd22f8 100644
--- a/src/openrct2-ui/windows/TitleEditor.cpp
+++ b/src/openrct2-ui/windows/TitleEditor.cpp
@@ -47,8 +47,8 @@ static void window_title_editor_mousedown(rct_window * w, rct_widgetindex widget
 static void window_title_editor_dropdown(rct_window * w, rct_widgetindex widgetIndex, int32_t dropdownIndex);
 static void window_title_editor_update(rct_window * w);
 static void window_title_editor_scrollgetsize(rct_window * w, int32_t scrollIndex, int32_t * width, int32_t * height);
-static void window_title_editor_scrollmousedown(rct_window * w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_title_editor_scrollmouseover(rct_window * w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_title_editor_scrollmousedown(rct_window * w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_title_editor_scrollmouseover(rct_window * w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_title_editor_textinput(rct_window * w, rct_widgetindex widgetIndex, char * text);
 static void window_title_editor_invalidate(rct_window * w);
 static void window_title_editor_paint(rct_window * w, rct_drawpixelinfo * dpi);
@@ -616,9 +616,9 @@ static void window_title_editor_scrollgetsize(rct_window* w, int32_t scrollIndex
     *width = SCROLL_WIDTH;
 }
 
-static void window_title_editor_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_title_editor_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    int32_t index = y / SCROLLABLE_ROW_HEIGHT;
+    int32_t index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     w->selected_list_item = -1;
     switch (w->selected_tab)
     {
@@ -639,9 +639,9 @@ static void window_title_editor_scrollmousedown(rct_window* w, int32_t scrollInd
     }
 }
 
-static void window_title_editor_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_title_editor_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
-    int32_t index = y / SCROLLABLE_ROW_HEIGHT;
+    int32_t index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     switch (w->selected_tab)
     {
         case WINDOW_TITLE_EDITOR_TAB_SAVES:
diff --git a/src/openrct2-ui/windows/TitleScenarioSelect.cpp b/src/openrct2-ui/windows/TitleScenarioSelect.cpp
index 74d4162631..2a0803531f 100644
--- a/src/openrct2-ui/windows/TitleScenarioSelect.cpp
+++ b/src/openrct2-ui/windows/TitleScenarioSelect.cpp
@@ -102,8 +102,8 @@ static void window_scenarioselect_close(rct_window *w);
 static void window_scenarioselect_mouseup(rct_window *w, rct_widgetindex widgetIndex);
 static void window_scenarioselect_mousedown(rct_window *w, rct_widgetindex widgetIndex, rct_widget* widget);
 static void window_scenarioselect_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_scenarioselect_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_scenarioselect_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_scenarioselect_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_scenarioselect_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_scenarioselect_invalidate(rct_window *w);
 static void window_scenarioselect_paint(rct_window *w, rct_drawpixelinfo *dpi);
 static void window_scenarioselect_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, int32_t scrollIndex);
@@ -325,7 +325,7 @@ static void window_scenarioselect_scrollgetsize(rct_window* w, int32_t scrollInd
  *
  *  rct2: 0x6780FE
  */
-static void window_scenarioselect_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_scenarioselect_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     const int32_t scenarioItemHeight = get_scenario_list_item_size();
 
@@ -334,11 +334,11 @@ static void window_scenarioselect_scrollmousedown(rct_window* w, int32_t scrollI
         switch (listItem.type)
         {
             case LIST_ITEM_TYPE::HEADING:
-                y -= 18;
+                screenCoords.y -= 18;
                 break;
             case LIST_ITEM_TYPE::SCENARIO:
-                y -= scenarioItemHeight;
-                if (y < 0 && !listItem.scenario.is_locked)
+                screenCoords.y -= scenarioItemHeight;
+                if (screenCoords.y < 0 && !listItem.scenario.is_locked)
                 {
                     audio_play_sound(SoundId::Click1, 0, w->x + (w->width / 2));
                     gFirstTimeSaving = true;
@@ -350,7 +350,7 @@ static void window_scenarioselect_scrollmousedown(rct_window* w, int32_t scrollI
                 }
                 break;
         }
-        if (y < 0)
+        if (screenCoords.y < 0)
         {
             break;
         }
@@ -361,7 +361,7 @@ static void window_scenarioselect_scrollmousedown(rct_window* w, int32_t scrollI
  *
  *  rct2: 0x678162
  */
-static void window_scenarioselect_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_scenarioselect_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     const int32_t scenarioItemHeight = get_scenario_list_item_size();
 
@@ -373,11 +373,11 @@ static void window_scenarioselect_scrollmouseover(rct_window* w, int32_t scrollI
         switch (listItem.type)
         {
             case LIST_ITEM_TYPE::HEADING:
-                y -= 18;
+                screenCoords.y -= 18;
                 break;
             case LIST_ITEM_TYPE::SCENARIO:
-                y -= scenarioItemHeight;
-                if (y < 0)
+                screenCoords.y -= scenarioItemHeight;
+                if (screenCoords.y < 0)
                 {
                     if (listItem.scenario.is_locked)
                     {
@@ -390,7 +390,7 @@ static void window_scenarioselect_scrollmouseover(rct_window* w, int32_t scrollI
                 }
                 break;
         }
-        if (y < 0)
+        if (screenCoords.y < 0)
         {
             break;
         }
diff --git a/src/openrct2-ui/windows/TrackList.cpp b/src/openrct2-ui/windows/TrackList.cpp
index 332066bdca..59311917a6 100644
--- a/src/openrct2-ui/windows/TrackList.cpp
+++ b/src/openrct2-ui/windows/TrackList.cpp
@@ -58,8 +58,8 @@ static void window_track_list_close(rct_window *w);
 static void window_track_list_mouseup(rct_window *w, rct_widgetindex widgetIndex);
 static void window_track_list_update(rct_window *w);
 static void window_track_list_scrollgetsize(rct_window *w, int32_t scrollIndex, int32_t *width, int32_t *height);
-static void window_track_list_scrollmousedown(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
-static void window_track_list_scrollmouseover(rct_window *w, int32_t scrollIndex, int32_t x, int32_t y);
+static void window_track_list_scrollmousedown(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
+static void window_track_list_scrollmouseover(rct_window *w, int32_t scrollIndex, ScreenCoordsXY screenCoords);
 static void window_track_list_textinput(rct_window *w, rct_widgetindex widgetIndex, char *text);
 static void window_track_list_invalidate(rct_window *w);
 static void window_track_list_paint(rct_window *w, rct_drawpixelinfo *dpi);
@@ -285,7 +285,7 @@ static void window_track_list_select(rct_window* w, int32_t listIndex)
     }
 }
 
-static int32_t window_track_list_get_list_item_index_from_position(int32_t x, int32_t y)
+static int32_t window_track_list_get_list_item_index_from_position(ScreenCoordsXY screenCoords)
 {
     size_t maxItems = _filteredTrackIds.size();
     if (!(gScreenFlags & SCREEN_FLAGS_TRACK_MANAGER))
@@ -294,7 +294,7 @@ static int32_t window_track_list_get_list_item_index_from_position(int32_t x, in
         maxItems++;
     }
 
-    int32_t index = y / SCROLLABLE_ROW_HEIGHT;
+    int32_t index = screenCoords.y / SCROLLABLE_ROW_HEIGHT;
     if (index < 0 || (uint32_t)index >= maxItems)
     {
         index = -1;
@@ -372,11 +372,11 @@ static void window_track_list_scrollgetsize(rct_window* w, int32_t scrollIndex,
  *
  *  rct2: 0x006CFB39
  */
-static void window_track_list_scrollmousedown(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_track_list_scrollmousedown(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     if (!w->track_list.track_list_being_updated)
     {
-        int32_t i = window_track_list_get_list_item_index_from_position(x, y);
+        int32_t i = window_track_list_get_list_item_index_from_position(screenCoords);
         if (i != -1)
         {
             window_track_list_select(w, i);
@@ -388,11 +388,11 @@ static void window_track_list_scrollmousedown(rct_window* w, int32_t scrollIndex
  *
  *  rct2: 0x006CFAD7
  */
-static void window_track_list_scrollmouseover(rct_window* w, int32_t scrollIndex, int32_t x, int32_t y)
+static void window_track_list_scrollmouseover(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     if (!w->track_list.track_list_being_updated)
     {
-        int32_t i = window_track_list_get_list_item_index_from_position(x, y);
+        int32_t i = window_track_list_get_list_item_index_from_position(screenCoords);
         if (i != -1 && w->selected_list_item != i)
         {
             w->selected_list_item = i;
diff --git a/src/openrct2/interface/Window.cpp b/src/openrct2/interface/Window.cpp
index 27f4c48ced..5678335e47 100644
--- a/src/openrct2/interface/Window.cpp
+++ b/src/openrct2/interface/Window.cpp
@@ -1481,19 +1481,19 @@ void window_get_scroll_size(rct_window* w, int32_t scrollIndex, int32_t* width,
 void window_event_scroll_mousedown_call(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     if (w->event_handlers->scroll_mousedown != nullptr)
-        w->event_handlers->scroll_mousedown(w, scrollIndex, screenCoords.x, screenCoords.y);
+        w->event_handlers->scroll_mousedown(w, scrollIndex, screenCoords);
 }
 
 void window_event_scroll_mousedrag_call(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     if (w->event_handlers->scroll_mousedrag != nullptr)
-        w->event_handlers->scroll_mousedrag(w, scrollIndex, screenCoords.x, screenCoords.y);
+        w->event_handlers->scroll_mousedrag(w, scrollIndex, screenCoords);
 }
 
 void window_event_scroll_mouseover_call(rct_window* w, int32_t scrollIndex, ScreenCoordsXY screenCoords)
 {
     if (w->event_handlers->scroll_mouseover != nullptr)
-        w->event_handlers->scroll_mouseover(w, scrollIndex, screenCoords.x, screenCoords.y);
+        w->event_handlers->scroll_mouseover(w, scrollIndex, screenCoords);
 }
 
 void window_event_textinput_call(rct_window* w, rct_widgetindex widgetIndex, char* text)
diff --git a/src/openrct2/interface/Window.h b/src/openrct2/interface/Window.h
index 37ab4a788e..4f81b8bb11 100644
--- a/src/openrct2/interface/Window.h
+++ b/src/openrct2/interface/Window.h
@@ -187,9 +187,9 @@ struct rct_window_event_list
     void (*tool_abort)(struct rct_window*, rct_widgetindex);
     void (*unknown_0E)(struct rct_window*);
     void (*get_scroll_size)(struct rct_window*, int32_t, int32_t*, int32_t*);
-    void (*scroll_mousedown)(struct rct_window*, int32_t, int32_t, int32_t);
-    void (*scroll_mousedrag)(struct rct_window*, int32_t, int32_t, int32_t);
-    void (*scroll_mouseover)(struct rct_window*, int32_t, int32_t, int32_t);
+    void (*scroll_mousedown)(struct rct_window*, int32_t, ScreenCoordsXY);
+    void (*scroll_mousedrag)(struct rct_window*, int32_t, ScreenCoordsXY);
+    void (*scroll_mouseover)(struct rct_window*, int32_t, ScreenCoordsXY);
     void (*text_input)(struct rct_window*, rct_widgetindex, char*);
     void (*viewport_rotate)(struct rct_window*);
     void (*unknown_15)(struct rct_window*, int32_t, int32_t);