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IStiUSD::RawWriteCommand method (stiusd.h)

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A still image minidriver's IStiDevice::RawWriteCommand method sends command information to a still image device.

Syntax

HRESULT RawWriteCommand(
  LPVOID       lpBuffer,
  DWORD        nNumberOfBytes,
  LPOVERLAPPED lpOverlapped
);

Parameters

lpBuffer

Caller-supplied pointer to a buffer containing data to be sent to the device.

nNumberOfBytes

Caller-supplied number of bytes to be written. This is the number of bytes in the buffer pointed to by lpBuffer.

lpOverlapped

Optional, caller-supplied pointer to an OVERLAPPED structure (described in the Microsoft Windows SDK documentation).

Return value

If the operation succeeds, the method should return S_OK. Otherwise, it should return one of the STIERR-prefixed error codes defined in stierr.h.

Remarks

It is only necessary to call IStiUSD::RawWriteCommand if commands and data are written to a device by different methods. For other devices, IStiUSD::RawWriteData can be used for both commands and data. If the call is not implemented, it must return STIERR_UNSUPPORTED.

Implementation of this method, along with the meaning of buffer contents, are vendor-defined.

Requirements

Requirement Value
Target Platform Desktop
Header stiusd.h (include Stiusd.h)

See also

IStiDevice::RawWriteCommand

IStiUSD