WDU_StreamClose()

DWORD DLLCALLCONV WDU_StreamClose

(

_In_ WDU_STREAM_HANDLE

hStream

)

Closes an open stream.

The function stops the stream, including flushing its data to the device (in the case of a write stream), before closing it.

Parameters

[in]

hStream

A unique identifier for the stream, as returned by WDU_StreamOpen().

Returns

WinDriver Error Code

DWORD dwStatus;
DWORD dwPipeNum, dwSize, dwBytesTransferred, cmd = MENU_RW_READ_PIPE;
VOID *pBuffer = NULL;
WDU_STREAM_HANDLE stream;
DWORD dwBufferSize = 0x20000;
 
dwStatus = WDU_StreamOpen(hDevice, dwPipeNum, dwBufferSize,
                    dwSize, TRUE, 0, TRANSFER_TIMEOUT, &stream);
if (dwStatus)
{
    ERR("ReadWritePipesMenu: WDU_StreamOpen() failed. "
        "error 0x%lx (\"%s\")\n", dwStatus, Stat2Str(dwStatus));
    goto End_transfer;
}
 
dwStatus = WDU_StreamStart(stream);
if (dwStatus)
{
    ERR("ReadWritePipesMenu: WDU_StreamStart() failed. error "
        "0x%lx (\"%s\")\n", dwStatus, Stat2Str(dwStatus));
    goto End_transfer;
}
 
if (cmd == MENU_RW_READ_PIPE)
{
    dwStatus = WDU_StreamRead(stream, pBuffer, dwSize,
        &dwBytesTransferred);
}
else
{
    dwStatus = WDU_StreamWrite(stream, pBuffer, dwSize,
        &dwBytesTransferred);
}
if (dwStatus)
{
    BOOL fIsRunning;
    DWORD dwLastError;
    DWORD dwBytesInBuffer;
 
    dwStatus = WDU_StreamGetStatus(stream, &fIsRunning,
        &dwLastError, &dwBytesInBuffer);
    if (!dwStatus)
        dwStatus = dwLastError;
}
 
WDU_StreamClose(stream);