(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_UnlockTexture

Unlock a texture, uploading the changes to video memory, if needed.

Header File

Defined in SDL_render.h, but apps should only #include "SDL.h"!

Syntax

void SDL_UnlockTexture(SDL_Texture * texture);

Function Parameters

texture

a texture locked by SDL_LockTexture()

Remarks

Warning: Please note that SDL_LockTexture() is intended to be write-only; it will not guarantee the previous contents of the texture will be provided. You must fully initialize any area of a texture that you lock before unlocking it, as the pixels might otherwise be uninitialized memory.

Which is to say: locking and immediately unlocking a texture can result in corrupted textures, depending on the renderer in use.

Version

This function is available since SDL 2.0.0.