MFC动态加载图片

//可以把_T(v[index])替换成bmp文件路径即可 void CPicSTestDlg::OnPaint() {      RECT m_Rect;      HDC m_hMemDC;      PAINTSTRUCT ps;      HDC hDC;      int error=0;      HBITMAP m_hDDBitmap;      HGDIOBJ m_OldBitmap,m_OldBitp;//这里是为了还原回去才创建的变量      hDC=::BeginPaint(m_hWnd, &ps);      GetClientRect(&m_Rect);      int nWidth=m_Rect.right-m_Rect.left,nHeight=m_Rect.bottom- m_Rect.top;      m_hMemDC=CreateCompatibleDC(hDC);      m_hDDBitmap=(HBITMAP)::LoadImage(::AfxGetInstanceHandle(),_T(v[index]), IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE|LR_CREATEDIBSECTION);     error=GetLastError();      m_OldBitmap=SelectObject(m_hMemDC,m_hDDBitmap);           HBITMAP DstBM = CreateCompatibleBitmap ( hDC,nWidth, nHeight );//与设备兼容的位图，这个也是资源要释放，用DeleteObject     m_OldBitp=SelectObject ( hDC, DstBM );      BitBlt(hDC,0, 0, nWidth, nHeight,                m_hMemDC, 0, 0,SRCCOPY);     ::EndPaint(m_hWnd, &ps);      SelectObject(m_hMemDC,m_OldBitmap);      DeleteDC(m_hMemDC);//必须先还原再删除，内存DC要删除,而hDC不能删除      DeleteObject(DstBM);      index++; }