_VCOMM_GetCommProperties

VxDcall _VCOMM_GetCommProperties, <hPort, <OFFSET32 cmmp>>
or      eax, eax
jz      error_handler

Gets the hardware and software capabilities and limitations of a communications resource. Uses the C calling convention.

• Returns TRUE if successful, FALSE otherwise. For extended error information, use _VCOMM_GetLastError.

hPort

Handle of a communications resource.

cmmp

Address of a _COMMPROP structure that receives information about the supported communications settings.

See also _COMMPROP, _VCOMM_GetLastError