SDK双缓存防止图片闪烁,,但图片显示不出来,谁帮我看一下怎么回事...
//=============================装载小方块=================================//HBITMAP m_hBmpFangKuai = (HBITMAP)LoadImage(NULL,_T("res\\FangKuai.bmp"),IMAGE_BITMAP,BLEN,BLEN,LR_LOADFROMFILE);HDC m_HBmpDC = ::GetDC(hwnd);//得到客户区DC句柄 HDC m_HMemBmpDC = ::CreateCompatibleDC(m_HBmpDC);//建立内存兼容DC BITMAP bmpInfo;//定义bmp结构::GetObject(m_hBmpFangKuai, sizeof(BITMAPINFO), &bmpInfo);//获得图片信息到bmp结构中;HBITMAP HOldDC = (HBITMAP)::SelectObject(m_HMemBmpDC, m_hBmpFangKuai);//将BMP选入到内存DC中并返回老位图//=============双缓冲开始=======================HBITMAP BkMap = CreateCompatibleBitmap(m_HBmpDC,GLONG,GWIDE);HDC BkDC = CreateCompatibleDC(m_HBmpDC);HBITMAP HOldBkDC = (HBITMAP)SelectObject(BkDC , BkMap);BitBlt(BkDC , 0 , 0 ,GLONG , GWIDE , m_HMemBmpDC,0,0,SRCCOPY);::SelectObject(BkDC, HOldBkDC);//==============================================::BitBlt(m_HBmpDC , BLEN*j , BLEN*i ,BLEN , BLEN , BkDC,0,0,SRCCOPY);//将内存DC中的内容拷贝到当前窗口DC中,并显示::SelectObject(m_HMemBmpDC, HOldDC);//选回老位图DeleteObject(m_hBmpFangKuai);DeleteDC(hdc);DeleteDC(m_HBmpDC);DeleteDC(m_HMemBmpDC);