cgGLUnloadProgram
Keywords: cgGLUnloadProgram, NVIDIA, NVIDIA Cg Toolkit, Cg Toolkit, Shader, Shader Programming, GPU Shader Programming, GPU Program

> ## Name

> cgGLUnloadProgram - destroy the OpenGL shader object associated with a program

> ## Synopsis

>     #include <Cg/cgGL.h>

>     void cgGLUnloadProgram( CGprogram program );

> ## Parameters

> program
>   The program for which to destroy the shader object. The CGprogram handle is still valid after this call.

> ## Return Values

> None.

> ## Description

> cgGLUnloadProgram destroys the OpenGL shader object for a program.

> This call does not destroy the CGprogram itself, only the associated GL shader object. Use cgDestroyProgram to free the CGprogram itself. Also note that freeing a CGprogram using the core runtime implicitly calls this routine to avoid resource leaks.

> ## Examples

>     // prog is a CGprogram initialized elsewhere
>     ...
>     cgGLUnloadProgram(prog);

>     CGbool loaded = cgGLIsProgramLoaded(prog);  // loaded == CG_FALSE

> ## Errors

> CG_INVALID_PROGRAM_HANDLE_ERROR is generated if program is not a valid program handle.

> ## History

> cgGLUnloadProgram was introduced in Cg 2.1.

> ## See Also

> cgGLLoadProgram, cgGLIsProgramLoaded, cgDestroyProgram