Table of Contents
This is part of Family API which allow to create dual-os version of program runs under OS/2 and DOS
Note: This is legacy API call. It is recommended to use 32-bit equivalent
MouGetNumButtons
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
Bindings
C
#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
Example
HMOU DeviceHandle; ... MouOpen(0L, &DeviceHandle); MouGetNumButtons(&NumberOfButtons, DeviceHandle);