(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GetWindowOpacity

Get the opacity of a window.

Header File

Defined in <SDL3/SDL_video.h>

Syntax

float SDL_GetWindowOpacity(SDL_Window *window);

Function Parameters

SDL_Window *

window

the window to get the current opacity value from.

Return Value

(float) Returns the opacity, (0.0f - transparent, 1.0f - opaque), or -1.0f on failure; call SDL_GetError() for more information.

Remarks

If transparency isn't supported on this platform, opacity will be returned as 1.0f without error.

Version

This function is available since SDL 3.1.3.

See Also

• SDL_SetWindowOpacity

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CategoryAPI, CategoryAPIFunction, CategoryVideo

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