The SDL_WINDOW_SKIP_TASKBAR flag has been replaced by the SDL_WINDOW_UTILITY flag

The SDL_WINDOW_UTILITY flag has the same functionality, and is now implemented on Windows.

build-scripts/SDL_migration.cocci

@@ -2673,3 +2673,7 @@ typedef SDL_cond, SDL_Condition;
 - SDL_GetDisplayOrientation
 + SDL_GetDisplayCurrentOrientation
   (...)
+@@
+@@
+- SDL_WINDOW_SKIP_TASKBAR
++ SDL_WINDOW_UTILITY

docs/README-migration.md

@@ -1096,6 +1096,8 @@ The SDL_WINDOWPOS_UNDEFINED_DISPLAY() and SDL_WINDOWPOS_CENTERED_DISPLAY() macro
 
 The SDL_WINDOW_SHOWN flag has been removed. Windows are shown by default and can be created hidden by using the SDL_WINDOW_HIDDEN flag.
 
+The SDL_WINDOW_SKIP_TASKBAR flag has been replaced by the SDL_WINDOW_UTILITY flag, which has the same functionality.
+
 SDL_DisplayMode now includes the pixel density which can be greater than 1.0 for display modes that have a higher pixel size than the mode size. You should use SDL_GetWindowSizeInPixels() to get the actual pixel size of the window back buffer.
 
 The refresh rate in SDL_DisplayMode is now a float.

include/SDL3/SDL_oldnames.h

@@ -475,6 +475,7 @@
 #define SDL_SetWindowDisplayMode SDL_SetWindowFullscreenMode
 #define SDL_WINDOW_ALLOW_HIGHDPI SDL_WINDOW_HIGH_PIXEL_DENSITY
 #define SDL_WINDOW_INPUT_GRABBED SDL_WINDOW_MOUSE_GRABBED
+#define SDL_WINDOW_SKIP_TASKBAR SDL_WINDOW_UTILITY
 
 #elif !defined(SDL_DISABLE_OLD_NAMES)
 
@@ -912,6 +913,7 @@
 #define SDL_SetWindowDisplayMode SDL_SetWindowDisplayMode_renamed_SDL_SetWindowFullscreenMode
 #define SDL_WINDOW_ALLOW_HIGHDPI SDL_WINDOW_ALLOW_HIGHDPI_renamed_SDL_WINDOW_HIGH_PIXEL_DENSITY
 #define SDL_WINDOW_INPUT_GRABBED SDL_WINDOW_INPUT_GRABBED_renamed_SDL_WINDOW_MOUSE_GRABBED
+#define SDL_WINDOW_SKIP_TASKBAR SDL_WINDOW_SKIP_TASKBAR_renamed_SDL_WINDOW_UTILITY
 
 #endif /* SDL_ENABLE_OLD_NAMES */
 

include/SDL3/SDL_video.h

@@ -144,10 +144,10 @@ typedef enum
     SDL_WINDOW_HIGH_PIXEL_DENSITY   = 0x00002000,   /**< window uses high pixel density back buffer if possible */
     SDL_WINDOW_MOUSE_CAPTURE        = 0x00004000,   /**< window has mouse captured (unrelated to MOUSE_GRABBED) */
     SDL_WINDOW_ALWAYS_ON_TOP        = 0x00008000,   /**< window should always be above others */
-    SDL_WINDOW_SKIP_TASKBAR         = 0x00010000,   /**< window should not be added to the taskbar */
-    SDL_WINDOW_UTILITY              = 0x00020000,   /**< window should be treated as a utility window */
-    SDL_WINDOW_TOOLTIP              = 0x00040000,   /**< window should be treated as a tooltip */
-    SDL_WINDOW_POPUP_MENU           = 0x00080000,   /**< window should be treated as a popup menu */
+    /* 0x00010000 was SDL_WINDOW_SKIP_TASKBAR in SDL2, please reserve this bit for sdl-compat */
+    SDL_WINDOW_UTILITY              = 0x00020000,   /**< window should be treated as a utility window, not showing in the task bar and window list */
+    SDL_WINDOW_TOOLTIP              = 0x00040000,   /**< window should be treated as a tooltip and must be created using SDL_CreatePopupWindow() */
+    SDL_WINDOW_POPUP_MENU           = 0x00080000,   /**< window should be treated as a popup menu and must be created using SDL_CreatePopupWindow() */
     SDL_WINDOW_KEYBOARD_GRABBED     = 0x00100000,   /**< window has grabbed keyboard input */
     SDL_WINDOW_VULKAN               = 0x10000000,   /**< window usable for Vulkan surface */
     SDL_WINDOW_METAL                = 0x20000000,   /**< window usable for Metal view */

src/test/SDL_test_common.c

@@ -29,21 +29,43 @@ static const char *common_usage[] = {
 };
 
 static const char *video_usage[] = {
-    "[--video driver]", "[--renderer driver]", "[--gldebug]", "[--display N]",
+    "[--always-on-top]",
+    "[--auto-scale-content]",
+    "[--center | --position X,Y]",
+    "[--confine-cursor X,Y,W,H]",
+    "[--depth N]",
+    "[--display N]",
+    "[--flash-on-focus-loss]",
+    "[--fullscreen | --fullscreen-desktop | --windows N]",
+    "[--geometry WxH]",
+    "[--gldebug]",
+    "[--grab]",
+    "[--hidden]",
+    "[--high-pixel-density]",
+    "[--icon icon.bmp]",
     "[--info all|video|modes|render|event|event_motion]",
-    "[--metal-window | --opengl-window | --vulkan-window]",
-    "[--fullscreen | --fullscreen-desktop | --windows N]", "[--title title]",
-    "[--icon icon.bmp]", "[--center | --position X,Y]", "[--geometry WxH]",
-    "[--min-geometry WxH]", "[--max-geometry WxH]", "[--logical WxH]",
-    "[--high-pixel-density]", "[--auto-scale-content]",
+    "[--input-focus]",
+    "[--keyboard-grab]",
     "[--logical-presentation disabled|match|stretch|letterbox|overscan|integer_scale]",
     "[--logical-scale-quality nearest|linear|best]",
-    "[--scale N]", "[--depth N]", "[--refresh R]", "[--vsync]", "[--noframe]",
-    "[--resizable]", "[--transparent]", "[--skip-taskbar]", "[--always-on-top]",
-    "[--minimize]", "[--maximize]", "[--grab]", "[--keyboard-grab]",
-    "[--hidden]", "[--input-focus]", "[--mouse-focus]",
-    "[--flash-on-focus-loss]", "[--confine-cursor X,Y,W,H]",
-    "[--usable-bounds]"
+    "[--logical WxH]",
+    "[--max-geometry WxH]",
+    "[--maximize]",
+    "[--metal-window | --opengl-window | --vulkan-window]",
+    "[--min-geometry WxH]",
+    "[--minimize]",
+    "[--mouse-focus]",
+    "[--noframe]",
+    "[--refresh R]",
+    "[--renderer driver]",
+    "[--resizable]",
+    "[--scale N]",
+    "[--title title]",
+    "[--transparent]",
+    "[--usable-bounds]",
+    "[--utility]",
+    "[--video driver]",
+    "[--vsync]"
 };
 
 /* !!! FIXME: Float32? Sint32? */
@@ -525,10 +547,6 @@ int SDLTest_CommonArg(SDLTest_CommonState *state, int index)
             state->window_flags |= SDL_WINDOW_TRANSPARENT;
             return 1;
         }
-        if (SDL_strcasecmp(argv[index], "--skip-taskbar") == 0) {
-            state->window_flags |= SDL_WINDOW_SKIP_TASKBAR;
-            return 1;
-        }
         if (SDL_strcasecmp(argv[index], "--always-on-top") == 0) {
             state->window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
             return 1;
@@ -565,6 +583,10 @@ int SDLTest_CommonArg(SDLTest_CommonState *state, int index)
             state->window_flags |= SDL_WINDOW_KEYBOARD_GRABBED;
             return 1;
         }
+        if (SDL_strcasecmp(argv[index], "--utility") == 0) {
+            state->window_flags |= SDL_WINDOW_UTILITY;
+            return 1;
+        }
     }
 
     if (state->flags & SDL_INIT_AUDIO) {
@@ -755,9 +777,6 @@ static void SDLTest_PrintWindowFlag(char *text, size_t maxlen, Uint32 flag)
     case SDL_WINDOW_ALWAYS_ON_TOP:
         SDL_snprintfcat(text, maxlen, "ALWAYS_ON_TOP");
         break;
-    case SDL_WINDOW_SKIP_TASKBAR:
-        SDL_snprintfcat(text, maxlen, "SKIP_TASKBAR");
-        break;
     case SDL_WINDOW_UTILITY:
         SDL_snprintfcat(text, maxlen, "UTILITY");
         break;
@@ -802,7 +821,6 @@ static void SDLTest_PrintWindowFlags(char *text, size_t maxlen, Uint32 flags)
         SDL_WINDOW_HIGH_PIXEL_DENSITY,
         SDL_WINDOW_MOUSE_CAPTURE,
         SDL_WINDOW_ALWAYS_ON_TOP,
-        SDL_WINDOW_SKIP_TASKBAR,
         SDL_WINDOW_UTILITY,
         SDL_WINDOW_TOOLTIP,
         SDL_WINDOW_POPUP_MENU,

src/video/SDL_video.c

@@ -1732,7 +1732,7 @@ Uint32 SDL_GetWindowPixelFormat(SDL_Window *window)
 }
 
 #define CREATE_FLAGS \
-    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIGH_PIXEL_DENSITY | SDL_WINDOW_ALWAYS_ON_TOP | SDL_WINDOW_SKIP_TASKBAR | SDL_WINDOW_POPUP_MENU | SDL_WINDOW_UTILITY | SDL_WINDOW_TOOLTIP | SDL_WINDOW_VULKAN | SDL_WINDOW_MINIMIZED | SDL_WINDOW_METAL | SDL_WINDOW_TRANSPARENT)
+    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIGH_PIXEL_DENSITY | SDL_WINDOW_ALWAYS_ON_TOP | SDL_WINDOW_POPUP_MENU | SDL_WINDOW_UTILITY | SDL_WINDOW_TOOLTIP | SDL_WINDOW_VULKAN | SDL_WINDOW_MINIMIZED | SDL_WINDOW_METAL | SDL_WINDOW_TRANSPARENT)
 
 static SDL_INLINE SDL_bool IsAcceptingDragAndDrop(void)
 {
@@ -2053,7 +2053,7 @@ SDL_Window *SDL_CreatePopupWindow(SDL_Window *parent, int offset_x, int offset_y
     }
 
     /* Remove invalid flags */
-    flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN | SDL_WINDOW_BORDERLESS | SDL_WINDOW_SKIP_TASKBAR);
+    flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN | SDL_WINDOW_BORDERLESS);
 
     return SDL_CreateWindowInternal(NULL, offset_x, offset_y, w, h, parent, flags);
 }

src/video/windows/SDL_windowswindow.c

@@ -122,6 +122,8 @@ static DWORD GetWindowStyleEx(SDL_Window *window)
 
     if (SDL_WINDOW_IS_POPUP(window)) {
         style = WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE;
+    } else if (window->flags & SDL_WINDOW_UTILITY) {
+        style = WS_EX_TOOLWINDOW;
     }
     return style;
 }
@@ -532,7 +534,7 @@ int WIN_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window)
 
     if (SDL_WINDOW_IS_POPUP(window)) {
         parent = window->parent->driverdata->hwnd;
-    } else if (window->flags & SDL_WINDOW_SKIP_TASKBAR) {
+    } else if (window->flags & SDL_WINDOW_UTILITY) {
         parent = CreateWindow(SDL_Appname, TEXT(""), STYLE_BASIC, 0, 0, 32, 32, NULL, NULL, SDL_Instance, NULL);
     }
 

src/video/x11/SDL_x11window.c

@@ -140,10 +140,6 @@ void X11_SetNetWMState(SDL_VideoDevice *_this, Window xwindow, Uint32 flags)
     if (flags & SDL_WINDOW_ALWAYS_ON_TOP) {
         atoms[count++] = _NET_WM_STATE_ABOVE;
     }
-    if (flags & SDL_WINDOW_SKIP_TASKBAR) {
-        atoms[count++] = _NET_WM_STATE_SKIP_TASKBAR;
-        atoms[count++] = _NET_WM_STATE_SKIP_PAGER;
-    }
     if (flags & SDL_WINDOW_INPUT_FOCUS) {
         atoms[count++] = _NET_WM_STATE_FOCUSED;
     }