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SDL_SetSurfaceColorMod

Set an additional color value multiplied into blit operations.

Syntax

int SDL_SetSurfaceColorMod(SDL_Surface * surface,
                           Uint8 r, Uint8 g, Uint8 b);

Function Parameters

surface

the SDL_Surface structure to update

r

the red color value multiplied into blit operations

g

the green color value multiplied into blit operations

b

the blue color value multiplied into blit operations

Return Value

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

Remarks

When this surface is blitted, during the blit operation each source color channel is modulated by the appropriate color value according to the following formula:

srcC = srcC * (color / 255)

SDL_GetSurfaceColorMod
SDL_SetSurfaceAlphaMod

CategoryAPI, CategorySurface


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