# SDL_SetTrayIcon Updates the system tray icon's icon. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_tray.h) ## Syntax ```c void SDL_SetTrayIcon(SDL_Tray *tray, SDL_Surface *icon); ``` ## Function Parameters | | | | | ---------------------------- | -------- | ---------------------------- | | [SDL_Tray](SDL_Tray) * | **tray** | the tray icon to be updated. | | [SDL_Surface](SDL_Surface) * | **icon** | the new icon. May be NULL. | ## Thread Safety This function should be called on the thread that created the tray. ## Version This function is available since SDL 3.2.0. ## See Also - [SDL_CreateTray](SDL_CreateTray) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryTray](CategoryTray)