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Draft

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SDL_GetWindowOpacity

Get the opacity of a window.

Syntax

int SDL_GetWindowOpacity(SDL_Window * window, float * out_opacity);

Function Parameters

window

the window to get the current opacity value from

out_opacity

the float filled in (0.0f - transparent, 1.0f - opaque)

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

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

The parameter opacity is ignored if it is NULL.

This function also returns -1 if an invalid window was provided.

Version

This function is available since SDL 2.0.5.

SDL_SetWindowOpacity

CategoryAPI, CategoryVideo, CategoryDraft


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