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COM_Open (Windows Embedded CE 6.0)

  • Article

1/6/2010

This function initializes the serial port driver.

Syntax

HANDLE COM_Open(
  HANDLE pContext,
  DWORD AccessCode,
  DWORD ShareMode 
);

Parameters

  • pContext
    [in] Pointer to a handle returned by the COM_Init function.
  • AccessCode
    [in] Access level requested by the caller, such as shared read or read/write.
  • ShareMode
    [in] Sharing mode passed to the CreateFile function.

Return Value

Returns a handle representing the serial port.

Remarks

This function opens a serial device. The HANDLE returned must be used in all subsequent calls to the serial driver. This function starts the thread that handles the serial events. It is exposed to applications through CreateFile. This function should be thread-safe. The serial port upper layer implementations supplied by Microsoft are all thread-safe.

Requirements

Header Developer Implemented
Library Serial.lib
Windows Embedded CE Windows CE 1.0 and later

See Also

Reference

Serial Port Driver MDD Functions
COM_Close
COM_Init

Other Resources

CreateFile