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This function implements the serial port's I\O control routine. It is called by serial port functions such as GetComState,which is a wrapper around this function.
BOOL COM_IOControl( DWORD dwOpenData, DWORD dwCode, PBYTE pBufIn, DWORD dwLenIn, PBYTE pBufOut, DWORD dwLenOut, PDWORD pdwActualOut );
TRUE indicates success. FALSE indicates failure.
This function is exported by a device driver. "COM" is the string passed in as lpszTypeduring calls to the RegisterDevicefunction.
|Runs on||Versions||Defined in||Include||Link to|
|Windows CE OS||1.0 and later||Mdd.c|
Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
Last updated on Tuesday, July 13, 2004