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====== MouGetNumButtons ======

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

===== Syntax =====
<code c>
 MouGetNumButtons (NumberOfButtons, DeviceHandle)
</code>

===== 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====
<code c>
#define INCL_MOU

USHORT  rc = MouGetNumButtons(NumberOfButtons, DeviceHandle);

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

USHORT  rc;               /* return code */
</code>

====MASM====
<code asm>
EXTRN  MouGetNumButtons:FAR
INCL_MOU            EQU 1

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

Returns WORD
</code>

===== Example =====

<code c>
 HMOU DeviceHandle;
 ...
 MouOpen(0L, &DeviceHandle);
 MouGetNumButtons(&NumberOfButtons, DeviceHandle);
</code>

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