MouGetNumButtons (OS/2 1.x)

This call returns the number of buttons supported on the installed mouse driver.

Syntax
MouGetNumButtons (NumberOfButtons, DeviceHandle)

Parameters

 * NumberOfButtons (PUSHORT) - output : Address of the number of physical buttons. The return values for the number of buttons supported are:
 * 1 - One mouse button
 * 2 - Two mouse buttons
 * 3 - Three mouse buttons.


 * DeviceHandle (HMOU) - input : Handle of the mouse device from a previous MouOpen.

Return Code

 * rc (USHORT) - return:Return code descriptions are:
 * 385 ERROR_MOUSE_NO_DEVICE
 * 466 ERROR_MOU_DETACHED
 * 501 ERROR_MOUSE_NO_CONSOLE
 * 505 ERROR_MOU_EXTENDED_SG

C

 * 1) define INCL_MOU

USHORT rc = MouGetNumButtons(NumberOfButtons, DeviceHandle);

PUSHORT NumberOfButtons; /* Number of mouse buttons */ HMOU   DeviceHandle;     /* Mouse device handle */

USHORT rc;               /* return code */ 

MASM
 EXTRN MouGetNumButtons:FAR INCL_MOU           EQU 1

PUSH@ WORD    NumberOfButtons ;Number of mouse buttons PUSH  WORD    DeviceHandle    ;Mouse device handle CALL  MouGetNumButtons

Returns WORD 