好不容易显示一个位图，结果悲剧的在左上角显示了，怎么调一下，我想显示在预览栏的下面

SetDIBitsToDevice(hdc,
                              W+1,                     // xDst
                              Y1+5,                     // yDst
                              cxDib,                 // cxSrc
                              cyDib,                 // cySrc
                              0,                     // xSrc
                              0,                     // ySrc
                              0,                     // first scan line
                              cyDib,                 // number of scan lines
                              pBits,
                              pbmi,
                              DIB_RGB_COLORS);

我是那样设定的，为什么还在左上角啊

解决了应该是（W+1)*BSIZE，漏了个东东