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

> ## Name

> cgValidateTechnique - validate a technique from an effect

> ## Synopsis

>     #include <Cg/cg.h>

>     CGbool cgValidateTechnique( CGtechnique tech );

> ## Parameters

> tech
>   The technique handle to validate.

> ## Return Values

> Returns CG_TRUE if all of the state assignments in all of the passes in tech are valid and can be used on the current hardware.

> Returns CG_FALSE if any state assignment fails validation, or if an error occurs.

> ## Description

> cgValidateTechnique iterates over all of the passes of a technique and tests to see if every state assignment in the pass passes validation.

> ## Examples

>     CGcontext context = cgCreateContext();
>     CGeffect effect = cgCreateEffectFromFile(context, filename, NULL);

>     CGtechnique tech = cgGetFirstTechnique(effect);
>     while (tech && cgValidateTechnique(tech) == CG_FALSE) {
>       fprintf(stderr, "Technique %s did not validate.  Skipping.\n",
>         cgGetTechniqueName(tech));
>       tech = cgGetNextTechnique(tech);
>     }

>     if (tech) {
>       fprintf(stderr, "Using technique %s.\n", cgGetTechniqueName(tech));
>     } else {
>       fprintf(stderr, "No valid technique found\n");
>       exit(1);
>     }

> ## Errors

> CG_INVALID_TECHNIQUE_HANDLE_ERROR is generated if tech is not a valid technique.

> ## History

> cgValidateTechnique was introduced in Cg 1.4.

> ## See Also

> cgCallStateValidateCallback, cgSetStateCallbacks