###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_GetTextureAlphaModFloat Get the additional alpha value multiplied into render copy operations. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_render.h) ## Syntax ```c bool SDL_GetTextureAlphaModFloat(SDL_Texture *texture, float *alpha); ``` ## Function Parameters | | | | | ---------------------------- | ----------- | ------------------------------------------------- | | [SDL_Texture](SDL_Texture) * | **texture** | the texture to query. | | float * | **alpha** | a pointer filled in with the current alpha value. | ## Return Value (bool) Returns true on success or false on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Thread Safety You may only call this function from the main thread. ## Version This function is available since SDL 3.1.3. ## See Also - [SDL_GetTextureAlphaMod](SDL_GetTextureAlphaMod) - [SDL_GetTextureColorModFloat](SDL_GetTextureColorModFloat) - [SDL_SetTextureAlphaModFloat](SDL_SetTextureAlphaModFloat) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)