VMD_Set_Middle_Button

#include vmd.inc
 
mov     bl, ButtonStatus
VxDcall VMD_Set_Middle_Button
 

Allows a virtual device to install a hook procedure that supports the middle mouse button. VMOUSE calls the procedure whenever the status of the middle mouse button must be set. A virtual device uses the Hook_Device_Service VMM service to install the hook procedure. Uses BH.

• Returns 4 in BH to indicate the middle button is down, otherwise returns 0 in BH.

ButtonStatus

Bit flags that specify the status of the mouse buttons. For the meaning of the flags, see the description of the VMD_Post_Pointer_Message service.

See also VMD_Post_Pointer_Message