SDL_GetWindowOpacity3
Get the opacity of a window.
Usage
#include "SDL3/SDL.h"
float SDL_GetWindowOpacity(SDL_Window *window);
Header file
Defined in SDL3/SDL_video.h
Overview
If transparency isn't supported on this platform, opacity will be returned as 1.0f without error.
Function parameters
- window
-
the window to get the current opacity value from.
Return value
Returns the opacity, (0.0f - transparent, 1.0f - opaque), or -1.0f on failure; call SDL_GetError () for more information.
Thread safety
This function should only be called on the main thread.