VCOMM_PM_API_WriteString

include vcomm.inc

        les     dx, buf               ;string to write in ES:DX
        mov     cx, cnt               ;count in CX
        cmp     cx, 1
        jne     @F
        mov     di, dx
        movzx   si, byte ptr es:[di]
@@:     mov     ebx, hPort
        mov     ax, VCOMM_PM_API_WriteString  ;function number
        call    [_VCOMMCallAddr]

Calls the _VCOMM_WriteComm service.

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

hPort

Communications resource handle.

See also _VCOMM_WriteComm