VCOMM_PM_API_cevt

include vcomm.inc

mov     ebx, hPort
mov     cx, evmask
les     dx, mymask
mov     ax, VCOMM_PM_API_cevt
call    [_VCOMMCallAddr]

Calls the _VCOMM_SetCommEventMask service. Uses AX.

• Returns zero in AX if successful, or an error value otherwise.

hPort

Communications resource handle.

evmask

The low word of event mask, which contains the bits that duplicate the Windows 3.1 functionality. VCOMM sets the high word to zero.

mymask

Address of the event variable in the client's VM. Because the port driver updates this value at interrupt time, it must be in locked memory.

See also _VCOMM_SetCommEventMask