diff --git a/include/SDL3/SDL_audio.h b/include/SDL3/SDL_audio.h
index 1d308e4f6..09223a62f 100644
--- a/include/SDL3/SDL_audio.h
+++ b/include/SDL3/SDL_audio.h
@@ -1094,14 +1094,12 @@ extern DECLSPEC int SDLCALL SDL_LockAudioDevice(SDL_AudioDeviceID dev);
  * This function should be paired with a previous SDL_LockAudioDevice() call.
  *
  * \param dev the ID of the device to be unlocked
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information. 
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_LockAudioDevice
  */
-extern DECLSPEC int SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
+extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
 /* @} *//* Audio lock functions */
 
 /**
@@ -1121,14 +1119,12 @@ extern DECLSPEC int SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
  * for reuse in a new SDL_OpenAudioDevice() call immediately.
  *
  * \param dev an audio device previously opened with SDL_OpenAudioDevice()
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information. 
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_OpenAudioDevice
  */
-extern DECLSPEC int SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
+extern DECLSPEC void SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
 
 /**
  * Convert some audio data of one format to another format.
diff --git a/include/SDL3/SDL_pixels.h b/include/SDL3/SDL_pixels.h
index ffb6217b0..705add6fb 100644
--- a/include/SDL3/SDL_pixels.h
+++ b/include/SDL3/SDL_pixels.h
@@ -416,14 +416,12 @@ extern DECLSPEC SDL_PixelFormat * SDLCALL SDL_CreatePixelFormat(Uint32 pixel_for
  * Free an SDL_PixelFormat structure allocated by SDL_CreatePixelFormat().
  *
  * \param format the SDL_PixelFormat structure to free
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information.
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_CreatePixelFormat
  */
-extern DECLSPEC int SDLCALL SDL_DestroyPixelFormat(SDL_PixelFormat *format);
+extern DECLSPEC void SDLCALL SDL_DestroyPixelFormat(SDL_PixelFormat *format);
 
 /**
  * Create a palette structure with the specified number of color entries.
@@ -480,14 +478,12 @@ extern DECLSPEC int SDLCALL SDL_SetPaletteColors(SDL_Palette * palette,
  * Free a palette created with SDL_CreatePalette().
  *
  * \param palette the SDL_Palette structure to be freed
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information.
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_CreatePalette
  */
-extern DECLSPEC int SDLCALL SDL_DestroyPalette(SDL_Palette * palette);
+extern DECLSPEC void SDLCALL SDL_DestroyPalette(SDL_Palette * palette);
 
 /**
  * Map an RGB triple to an opaque pixel value for a given pixel format.
diff --git a/include/SDL3/SDL_render.h b/include/SDL3/SDL_render.h
index 9a20f8664..bcefdec16 100644
--- a/include/SDL3/SDL_render.h
+++ b/include/SDL3/SDL_render.h
@@ -1439,15 +1439,13 @@ extern DECLSPEC int SDLCALL SDL_RenderPresent(SDL_Renderer *renderer);
  * to "Invalid texture".
  *
  * \param texture the texture to destroy
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information.
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_CreateTexture
  * \sa SDL_CreateTextureFromSurface
  */
-extern DECLSPEC int SDLCALL SDL_DestroyTexture(SDL_Texture *texture);
+extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_Texture *texture);
 
 /**
  * Destroy the rendering context for a window and free associated textures.
@@ -1456,14 +1454,12 @@ extern DECLSPEC int SDLCALL SDL_DestroyTexture(SDL_Texture *texture);
  * the SDL error message to "Invalid renderer". See SDL_GetError().
  *
  * \param renderer the rendering context
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information.
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_CreateRenderer
  */
-extern DECLSPEC int SDLCALL SDL_DestroyRenderer(SDL_Renderer *renderer);
+extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_Renderer *renderer);
 
 /**
  * Force the rendering context to flush any pending commands to the underlying
diff --git a/include/SDL3/SDL_video.h b/include/SDL3/SDL_video.h
index 371e265c1..b161013de 100644
--- a/include/SDL3/SDL_video.h
+++ b/include/SDL3/SDL_video.h
@@ -1527,15 +1527,13 @@ extern DECLSPEC int SDLCALL SDL_FlashWindow(SDL_Window *window, SDL_FlashOperati
  * the SDL error message to "Invalid window". See SDL_GetError().
  *
  * \param window the window to destroy
- * \returns 0 on success or a negative error code on failure; call
- *          SDL_GetError() for more information.
  *
  * \since This function is available since SDL 3.0.0.
  *
  * \sa SDL_CreateWindow
  * \sa SDL_CreateWindowFrom
  */
-extern DECLSPEC int SDLCALL SDL_DestroyWindow(SDL_Window *window);
+extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_Window *window);
 
 
 /**
diff --git a/src/audio/SDL_audio.c b/src/audio/SDL_audio.c
index 1feb8e92f..6abba6b67 100644
--- a/src/audio/SDL_audio.c
+++ b/src/audio/SDL_audio.c
@@ -1553,25 +1553,23 @@ int SDL_LockAudioDevice(SDL_AudioDeviceID devid)
     return 0;
 }
 
-int SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
+void SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
 {
     /* Obtain a lock on the mixing buffers */
     SDL_AudioDevice *device = get_audio_device(devid);
     if (!device) {
-        return SDL_InvalidParamError("devid");
+        return;
     }
     current_audio.impl.UnlockDevice(device);
-    return 0;
 }
 
-int SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
+void SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
 {
     SDL_AudioDevice *device = get_audio_device(devid);
     if (!device) {
-        return SDL_InvalidParamError("devid");
+        return;
     }
     close_audio_device(device);
-    return 0;
 }
 
 void SDL_QuitAudio(void)
diff --git a/src/dynapi/SDL_dynapi_procs.h b/src/dynapi/SDL_dynapi_procs.h
index 9cab0d0ac..4b6cf251f 100644
--- a/src/dynapi/SDL_dynapi_procs.h
+++ b/src/dynapi/SDL_dynapi_procs.h
@@ -144,7 +144,7 @@ SDL_DYNAPI_PROC(void,SDL_ClearComposition,(void),(),)
 SDL_DYNAPI_PROC(void,SDL_ClearError,(void),(),)
 SDL_DYNAPI_PROC(void,SDL_ClearHints,(void),(),)
 SDL_DYNAPI_PROC(int,SDL_ClearQueuedAudio,(SDL_AudioDeviceID a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_CloseAudioDevice,(SDL_AudioDeviceID a),(a),return)
+SDL_DYNAPI_PROC(void,SDL_CloseAudioDevice,(SDL_AudioDeviceID a),(a),)
 SDL_DYNAPI_PROC(void,SDL_CloseGamepad,(SDL_Gamepad *a),(a),)
 SDL_DYNAPI_PROC(int,SDL_CloseJoystick,(SDL_Joystick *a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_CloseSensor,(SDL_Sensor *a),(a),)
@@ -184,13 +184,13 @@ SDL_DYNAPI_PROC(Uint32,SDL_DequeueAudio,(SDL_AudioDeviceID a, void *b, Uint32 c)
 SDL_DYNAPI_PROC(void,SDL_DestroyAudioStream,(SDL_AudioStream *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_DestroyCond,(SDL_cond *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_DestroyMutex,(SDL_mutex *a),(a),)
-SDL_DYNAPI_PROC(int,SDL_DestroyPalette,(SDL_Palette *a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_DestroyPixelFormat,(SDL_PixelFormat *a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_DestroyRenderer,(SDL_Renderer *a),(a),return)
+SDL_DYNAPI_PROC(void,SDL_DestroyPalette,(SDL_Palette *a),(a),)
+SDL_DYNAPI_PROC(void,SDL_DestroyPixelFormat,(SDL_PixelFormat *a),(a),)
+SDL_DYNAPI_PROC(void,SDL_DestroyRenderer,(SDL_Renderer *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_DestroySemaphore,(SDL_sem *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_DestroySurface,(SDL_Surface *a),(a),)
-SDL_DYNAPI_PROC(int,SDL_DestroyTexture,(SDL_Texture *a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_DestroyWindow,(SDL_Window *a),(a),return)
+SDL_DYNAPI_PROC(void,SDL_DestroyTexture,(SDL_Texture *a),(a),)
+SDL_DYNAPI_PROC(void,SDL_DestroyWindow,(SDL_Window *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_DetachThread,(SDL_Thread *a),(a),)
 SDL_DYNAPI_PROC(int,SDL_DetachVirtualJoystick,(SDL_JoystickID a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_DisableScreenSaver,(void),(),)
@@ -722,7 +722,7 @@ SDL_DYNAPI_PROC(SDL_bool,SDL_TextInputShown,(void),(),return)
 SDL_DYNAPI_PROC(SDL_threadID,SDL_ThreadID,(void),(),return)
 SDL_DYNAPI_PROC(int,SDL_TryLockMutex,(SDL_mutex *a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_UnloadObject,(void *a),(a),)
-SDL_DYNAPI_PROC(int,SDL_UnlockAudioDevice,(SDL_AudioDeviceID a),(a),return)
+SDL_DYNAPI_PROC(void,SDL_UnlockAudioDevice,(SDL_AudioDeviceID a),(a),)
 SDL_DYNAPI_PROC(void,SDL_UnlockJoysticks,(void),(),)
 SDL_DYNAPI_PROC(int,SDL_UnlockMutex,(SDL_mutex *a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_UnlockSurface,(SDL_Surface *a),(a),)
diff --git a/src/render/SDL_render.c b/src/render/SDL_render.c
index 7f0b2d829..9048da9ac 100644
--- a/src/render/SDL_render.c
+++ b/src/render/SDL_render.c
@@ -4089,9 +4089,9 @@ static int SDL_DestroyTextureInternal(SDL_Texture *texture, SDL_bool is_destroyi
     return 0;
 }
 
-int SDL_DestroyTexture(SDL_Texture *texture)
+void SDL_DestroyTexture(SDL_Texture *texture)
 {
-    return SDL_DestroyTextureInternal(texture, SDL_FALSE /* is_destroying */);
+    SDL_DestroyTextureInternal(texture, SDL_FALSE /* is_destroying */);
 }
 
 static void SDL_DiscardAllCommands(SDL_Renderer *renderer)
@@ -4116,9 +4116,9 @@ static void SDL_DiscardAllCommands(SDL_Renderer *renderer)
     }
 }
 
-int SDL_DestroyRenderer(SDL_Renderer *renderer)
+void SDL_DestroyRenderer(SDL_Renderer *renderer)
 {
-    CHECK_RENDERER_MAGIC(renderer, -1);
+    CHECK_RENDERER_MAGIC(renderer,);
 
     SDL_DelEventWatch(SDL_RendererEventWatch, renderer);
 
@@ -4147,7 +4147,6 @@ int SDL_DestroyRenderer(SDL_Renderer *renderer)
 
     /* Free the renderer instance */
     renderer->DestroyRenderer(renderer);
-    return 0;
 }
 
 int SDL_GL_BindTexture(SDL_Texture *texture, float *texw, float *texh)
diff --git a/src/video/SDL_pixels.c b/src/video/SDL_pixels.c
index fd04d2d86..6919af4bc 100644
--- a/src/video/SDL_pixels.c
+++ b/src/video/SDL_pixels.c
@@ -623,19 +623,19 @@ int SDL_InitFormat(SDL_PixelFormat *format, Uint32 pixel_format)
     return 0;
 }
 
-int SDL_DestroyPixelFormat(SDL_PixelFormat *format)
+void SDL_DestroyPixelFormat(SDL_PixelFormat *format)
 {
     SDL_PixelFormat *prev;
 
     if (format == NULL) {
-        return SDL_InvalidParamError("format");
+        return;
     }
 
     SDL_AtomicLock(&formats_lock);
 
     if (--format->refcount > 0) {
         SDL_AtomicUnlock(&formats_lock);
-        return 0;
+        return;
     }
 
     /* Remove this format from our list */
@@ -656,7 +656,7 @@ int SDL_DestroyPixelFormat(SDL_PixelFormat *format)
         SDL_DestroyPalette(format->palette);
     }
     SDL_free(format);
-    return 0;
+    return;
 }
 
 SDL_Palette *
@@ -744,17 +744,16 @@ int SDL_SetPaletteColors(SDL_Palette *palette, const SDL_Color *colors,
     return status;
 }
 
-int SDL_DestroyPalette(SDL_Palette *palette)
+void SDL_DestroyPalette(SDL_Palette *palette)
 {
     if (palette == NULL) {
-        return SDL_InvalidParamError("palette");
+        return;
     }
     if (--palette->refcount > 0) {
-        return 0;
+        return;
     }
     SDL_free(palette->colors);
     SDL_free(palette);
-    return 0;
 }
 
 /*
diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index bf702aab4..94811edb8 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -3128,11 +3128,11 @@ SDL_Window *SDL_GetFocusWindow(void)
     return NULL;
 }
 
-int SDL_DestroyWindow(SDL_Window *window)
+void SDL_DestroyWindow(SDL_Window *window)
 {
     SDL_VideoDisplay *display;
 
-    CHECK_WINDOW_MAGIC(window, -1);
+    CHECK_WINDOW_MAGIC(window,);
 
     window->is_destroying = SDL_TRUE;
 
@@ -3209,7 +3209,6 @@ int SDL_DestroyWindow(SDL_Window *window)
     }
 
     SDL_free(window);
-    return 0;
 }
 
 SDL_bool SDL_ScreenSaverEnabled()