cgSetErrorHandler

> # NAME

> cgSetErrorHandler - set the error handler callback function

> # SYNOPSIS

>       #include <Cg/cg.h>

>       typedef void (*CGerrorHandlerFunc)( CGcontext context,
>                                           CGerror error,
>                                           void * appdata );

>       void cgSetErrorHandler( CGerrorHandlerFunc func,
>                               void * appdata );

> # PARAMETERS

> func

>   A pointer to the error handler callback function.

> appdata

>   A pointer to arbitrary application-provided data.

> # RETURN VALUES

> None.

> # DESCRIPTION

> cgSetErrorHandler specifies an error handler function that will be called every time a Cg runtime error occurrs. The callback function is passed:

> context

>   The context in which the error occured. If the context cannot be determined, NULL is used.

> error

>   The enumerant of the error triggering the callback.

> appdata

>   The value of the pointer passed to cgSetErrorHandler. This pointer can be used to make arbitrary application-side information available to the error handler.

> To disable the callback function, specify a NULL callback function pointer via cgSetErrorHandler.

> # EXAMPLES

>       void MyErrorHandler(CGcontext context, CGerror error, void *data) {
>         char *progname = (char *)data;
>         fprintf(stderr, "%s: Error: %s\n", progname, cgGetErrorString(error));
>       }

>       void main(int argc, char *argv[])
>       {
>         ...
>         cgSetErrorHandler(MyErrorHandler, (void *)argv[0]);
>         ...
>       }

> # ERRORS

> to-be-written

> # HISTORY

> cgSetErrorHandler was introduced in Cg 1.4.

> # SEE ALSO

> cgGetErrorHandler, cgGetError, cgGetErrorString, cgGetFirstError