IOCTL_SERIAL_SET_DTR
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8/28/2008
This IOCTL sets the Data Terminal Ready (DTR) signal to high. The DeviceIoControl function executes this IOCTL.
Parameters
- dwOpenData
[in] Handle returned from a call to the COM_Open function.
- dwCode
[in] Set to this IOCTL: IOCTL_SERIAL_SET_DTR.
- pBufIn
Ignored.
- dwLenIn
Ignored.
- pBufOut
Ignored.
- dwLenOut
Ignored.
- pdwActualOut
Ignored.
Return Values
Returns TRUE if successful. Returns FALSE otherwise. To get extended error information, call GetLastError.
Requirements
| Header | pegdser.h |
| Windows Embedded CE | Windows CE 1.0 and later |