史卡異想

#include <wdm.h>
#include <usbdi.h>

#include <windef.h>
#include <stdio.h>  
#include <stdlib.h>
#include <ntstrsafe.h>
#define NOBITMAP  
#include <mmreg.h>
#undef NOBITMAP  

.....

#define FRAME_DBG_FILENAME  L"\\??\\C:\\xxx.bin"

NTSTATUS
USBCAMD_SaveFrameToFile(
    IN PUCHAR FrameBuffer,
    IN ULONG FrameSize,
    IN ULONG FrameIndex
    )
{
    NTSTATUS ntStatus = STATUS_SUCCESS;
    HANDLE hFile;
    OBJECT_ATTRIBUTES  objectAttributes;
    UNICODE_STRING unicodeFilename;
    IO_STATUS_BLOCK  ioStatus;
 //   WCHAR frameFilename[] = FRAME_DBG_FILENAME;
    WCHAR frameFilename[32];

    LPCWSTR pszFormat = L"\\??\\C:\\xxx_%x.bin";

    //寫入想要的檔名
    RtlStringCbPrintfW(frameFilename, sizeof(frameFilename), pszFormat, FrameIndex);

    RtlInitUnicodeString(&unicodeFilename, frameFilename);

    // Create data file.
    InitializeObjectAttributes (
        &objectAttributes,
        &unicodeFilename,
        OBJ_CASE_INSENSITIVE|OBJ_KERNEL_HANDLE,
        NULL,
        NULL);
    
/*  //覆蓋檔案
    ntStatus = ZwCreateFile(&hFile,
                            GENERIC_WRITE,
                            &objectAttributes,
                            &ioStatus,
                            NULL,
                            FILE_ATTRIBUTE_NORMAL,
                            0,
                            FILE_OVERWRITE_IF,
                            FILE_SYNCHRONOUS_IO_NONALERT,
                            NULL,
                            0);
*/

     //續寫檔案
     ntStatus = ZwCreateFile( &hFile,
                           FILE_APPEND_DATA,
                           &objectAttributes,
                           &ioStatus,
                           NULL,
                           FILE_ATTRIBUTE_NORMAL,
                           FILE_SHARE_WRITE,
                           FILE_OPEN_IF,
                           FILE_SYNCHRONOUS_IO_NONALERT,
                           NULL,     
                           0 );    

    if (ntStatus == STATUS_SUCCESS)
    {
       
        if ((FrameBuffer) && (FrameSize))
        {
            ntStatus = ZwWriteFile(hFile,
                                  NULL,
                                  NULL,
                                  NULL,
                                  &ioStatus,
                                  FrameBuffer,
                                  FrameSize,
                                  NULL,
                                  NULL);
        }
        ZwClose(hFile);
    }else
    {
      AlDebugPrint(("Create frame file Failed!\n"));
    }

    return ntStatus;
}