Sets the library return value to a logical value.
Syntax
void _RetLogical(int flag)
int flag; /* Flag. */
Remarks
_RetLogical( ) considers zero to be False, and any non-zero value to be True.
For more information on how to create an API library and integrate it with Visual FoxPro, see Chapter 28, Accessing the Visual FoxPro API, in the Programmer's Guide.