IStiDevice::RawWriteData method (sti.h)

The IStiDevice::RawWriteData method writes data to a still image device.

Syntax

HRESULT RawWriteData(
  [in]           LPVOID       lpBuffer,
                 DWORD        nNumberOfBytes,
  [in, optional] LPOVERLAPPED lpOverlapped
);

Parameters

[in] 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.

[in, optional] lpOverlapped

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

Return value

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

Remarks

The IStiDevice::RawWriteData method calls IStiUSD::RawWriteData, which is exported by vendor-supplied minidrivers.

Before calling IStiDevice::RawWriteData, clients of the IStiDevice COM interface must call IStillImage::CreateDevice to obtain an IStiDevice interface pointer, which provides access to a specified device.

A call to IStiDevice::RawWriteData must be preceded by a call to IStiDevice::LockDevice and followed by a call to IStiDevice::UnLockDevice.

Requirements

See also

IStiDevice

IStiDevice::RawWriteCommand