SDL_SetRenderDrawBlendMode
Use this function to set the blend mode used for drawing operations (Fill and Line).
Syntax
int SDL_SetRenderDrawBlendMode(SDL_Renderer* renderer,
SDL_BlendMode blendMode)
Function Parameters
renderer |
the rendering context |
blendMode |
the SDL_BlendMode to use for 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 may be SDL_BLENDMODE_NONE or a mask of any of the other SDL_BlendMode values OR'd together:
SDL_BLENDMODE_NONE |
no blending |
SDL_BLENDMODE_BLEND |
dst = (src * A) + (dst * (1-A)) |
SDL_BLENDMODE_ADD |
dst = (src * A) + dst |
SDL_BLENDMODE_MOD |
dst = src * dst |
