use
Description:
public void use ()
Activate a specific shader program replacing that part of the GL rendering pipeline, if passed in COGL_INVALID_HANDLE the default
behavior of GL is reinstated.
Note:
Use CoglSnippet api
This function affects the global state of the current Cogl context. It is much more efficient to attach the shader to a specific material used for rendering instead by calling set_user_program.
Parameters:
| handle |
a VertexBufferIndices for a shader program or |