bool MyDlg::IfExistFile(CString strFilePath)
{CFile file;if (file.Open(strFilePath,CFile::modeRead)){file.Close();return true;}return false;
}bool MyDlg::FillBlankToPicCtrl(const int& nID)
{CDC *pDC = GetDlgItem(nID)->GetDC();CRect rect;GetDlgItem(nID) ->GetClientRect( &rect );pDC->FillSolidRect(rect, GetSysColor(COLOR_ACTIVEBORDER));//填充当前背景色
    ReleaseDC(pDC);return true;
}void MyDlg::ShowIplImage(IplImage* img, const int& nID)
{BITMAPINFO bifInfo;int nBpp = img ? (img->depth & 255) * img->nChannels : 0 ;FillBitmapInfo(&bifInfo, img->width, img->height, nBpp);ShowImageInWindow(img, GetDlgItem(nID), bifInfo);
}void MyDlg::FillBitmapInfo( BITMAPINFO *bmi, int width, int height, int bpp)
{ASSERT( bmi && width > 0 && height > 0 &&(bpp == 8 || bpp == 24 || bpp == 32) ); BITMAPINFOHEADER* bmih = &(bmi->bmiHeader); memset( bmih, 0, sizeof(*bmih));bmih->biSize   = sizeof(BITMAPINFOHEADER);bmih->biWidth  = width;bmih->biHeight = -abs(height);bmih->biPlanes = 1;bmih->biBitCount = bpp;bmih->biCompression = BI_RGB;if( bpp == 8 ){RGBQUAD* palette = bmi->bmiColors;int i;for( i = 0; i < 256; i++ ){palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i;palette[i].rgbReserved = 0;}}
}void MyDlg::ShowImageInWindow(IplImage *pImg, CWnd *wnd, BITMAPINFO &bmi)
{CDC *pDC = wnd->GetDC();HDC  hDC = pDC->GetSafeHdc();CRect rect;wnd->GetClientRect(&rect);if(bmi.bmiHeader.biBitCount== 8){CPalette pal;HPALETTE hpal=NULL;HPALETTE hOldPal=NULL;::SetPaletteEntries(hpal,0,256,(LPPALETTEENTRY)bmi.bmiColors);hOldPal = ::SelectPalette(pDC->GetSafeHdc(), hpal, TRUE);}::SetStretchBltMode(pDC->m_hDC, COLORONCOLOR);::StretchDIBits(pDC->GetSafeHdc(),rect.left,rect.top,pImg->width,pImg->height,0,0,pImg->width,pImg->height,pImg->imageData,&bmi,DIB_RGB_COLORS,SRCCOPY);ReleaseDC(pDC);
}