Function            SetPointDevice - Pointing Device BIOS Interface:
                                         Enable/Disable Pointing Device

  Syntax              int SetPointDevice(boolean enable);

  Prototype in        ibm.h

  Remarks             SetPointDevice() will enable or disable the
                      pointing device through the Pointing Device BIOS
                      Interface, depending on the value of the parameter
                      enable.

  Return value        returns 0 on success and -1 on failure, with the
                      error code stored in Borland's global variable
                      errno. Here are the possible error values:

                           0x01      Invalid function
                           0x02      Invalid input
                           0x03      Interface error
                           0x04      Need to resend
                           0x05      No device handler installed

  Note                This function is only available on PS/2 machines or
                      under DESQview 2.x.

  See also            GetTypePointDevice(), ResetPointDevice(),
                      SetRatePointDevice(), SetResPointDevice()