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
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | sti.h (include Sti.h) |