NAME¶

SDL_SetWindowOpacity - Set the opacity for a window.

SYNOPSIS¶

#include "SDL3/SDL.h"

int SDL_SetWindowOpacity(SDL_Window *window, float opacity);

DESCRIPTION¶

The parameter opacity will be clamped internally between 0.0f (transparent) and 1.0f (opaque).

This function also returns -1 if setting the opacity isn't supported.

FUNCTION PARAMETERS¶

window

the window which will be made transparent or opaque

opacity

the opacity value (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.

AVAILABILITY¶

This function is available since SDL 3.0.0.

SEE ALSO¶

SDL_GetWindowOpacity(3)