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Size: 926
Comment: update content - 2/14 changeset 5295 (as of 5145); moved to render.h
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← Revision 8 as of 2011-02-16 23:07:34 ⇥
Size: 1026
Comment: update content - 2/16 changeset 5318 (as of 5147)
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| Deletions are marked like this. | Additions are marked like this. |
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| int SDL_GetRenderDrawBlendMode(SDL_BlendMode* blendMode) | int SDL_GetRenderDrawBlendMode(SDL_Renderer* renderer, SDL_BlendMode* blendMode) |
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| ||'''renderer'''||the rendering context|| |
SDL_GetRenderDrawBlendMode
Use this function to get the blend mode used for drawing operations.
Contents
Syntax
int SDL_GetRenderDrawBlendMode(SDL_Renderer* renderer,
SDL_BlendMode* blendMode)
Function Parameters
renderer |
the rendering context |
blendMode |
a pointer filled in with the current SDL_BlendMode; 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 will be filled in with one of the following:
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 |
