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| ||'''surface'''||the surface to query|| ||'''alpha'''||a pointer filled in with the source alpha value|| |
||'''surface'''||the [[SDL_Surface]] to query|| ||'''alpha'''||,,a pointer filled in with ,,the source alpha value|| |
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SDL_GetSurfaceAlphaMod
Use this function to get the additional alpha value used in blit operations.
Contents
Syntax
int SDL_GetSurfaceAlphaMod(SDL_Surface* surface,
Uint8* alpha)
Function Parameters
surface |
the SDL_Surface to query |
alpha |
a pointer filled in with the source alpha value |
Return Value
Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
Code Examples
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Remarks
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