Gets the screen numbers that can be set in WinGP.
Function Name
INT32 GetEnumScreenNumberCount(
INT32 l_RuntimeHandle,
INT32 *l_ScreenNumberCount );
Argument
l_RuntimeHandle: (i) WinGP handle for operation
l_ScreenNumberCount: (o) Number of display screens
Return value (NULL)
Status
0: Completed
-1: Parameter error
-2: Timeout
1: State WinGP does not accept (ending, etc.)