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← Revision 2 as of 2016-09-29 22:50:23 ⇥
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| This function is available in ''unstable'' versions newer than (stable) SDL 2.0.4. | This function is available since SDL 2.0.5. |
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SDL_SetWindowOpacity
Use this function to set the opacity for a window.
Contents
Syntax
int SDL_SetWindowOpacity(SDL_Window* window,
float opacity)
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.
Code Examples
You can add your code example here
Remarks
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.
This function is only supported on DirectFB, X11, Cocoa (Apple Mac OS X) and Microsoft Windows.
Version
This function is available since SDL 2.0.5.
