Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

                                                      ◄Up► ◄Next► ◄Previous►
────────────────────────────────────────────────────────────────────────────
 
#define INCL_DOSDEVIOCTL
 
USHORT DosDevIOCtl(0L, 0L, 0x0057, 0x0007, hDevice)
HFILE hDevice;    /* device handle */
 
The MOU_DRAWPTR function removes the current exclusion rectangle, allowing
the pointer to be drawn anywhere on the screen. If an exclusion rectangle
has been declared for the screen group, that rectangle is released and the
pointer position is checked. If the pointer was in the released rectangle,
it is drawn. If the pointer was not in the released rectangle, the
pointer-draw operation occurs.
 
Parameter  Description
────────────────────────────────────────────────────────────────────────────
 
hDevice    Identifies the pointing device that receives the device-control
           function. The handle must have been created previously by using
           the DosOpen function.
 
Return Value
 
The return value is zero if the function is successful or an error value if
an error occurs.
 
See Also
 
DosOpen
 
                                      ♦