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| ||<tablewidth="100%" style="color: #FF0000;" :> DRAFT|| | |
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| int SDL_SetSurfaceBlendMode(SDL_Surface* surface, int blendMode) |
int SDL_SetSurfaceBlendMode(SDL_Surface* surface, SDL_BlendMode blendMode) |
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| ||'''surface'''||the surface to update|| ||'''blendMode'''||[[SDL_BlendMode]] to use for blit blending|| |
||'''surface'''||the [[SDL_Surface]] structure to update|| ||'''blendMode'''||the [[SDL_BlendMode]] to use for blit blending; see [[#Remarks|Remarks]] for details|| |
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| Returns 0 on success, or -1 if the parameters are not valid; call [[SDL_GetError]]() for more information. | Returns 0 on success or a negative error code on failure; call [[SDL_GetError]]() for more information. |
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| ''You can add useful comments here'' | '''blendMode''' can be one of these values: <<Include(SDL_BlendMode, , , from="== Values ==", to="== Code Examples ==")>> |
SDL_SetSurfaceBlendMode
Use this function to set the blend mode used for blit operations.
Contents
Syntax
int SDL_SetSurfaceBlendMode(SDL_Surface* surface,
SDL_BlendMode blendMode)
Function Parameters
surface |
the SDL_Surface structure to update |
blendMode |
the SDL_BlendMode to use for blit blending; see Remarks for details |
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
blendMode can be one of these values:
SDL_BLENDMODE_NONE |
no blending |
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dstRGBA = srcRGBA |
SDL_BLENDMODE_BLEND |
alpha blending |
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dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA)) |
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dstA = srcA + (dstA * (1-srcA)) |
SDL_BLENDMODE_ADD |
additive blending |
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dstRGB = (srcRGB * srcA) + dstRGB |
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dstA = dstA |
SDL_BLENDMODE_MOD |
color modulate |
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dstRGB = srcRGB * dstRGB |
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dstA = dstA |
