高分求助MFC图像处理方面的程序

看一天你就想学会MFC啊......
就算给你讲一天，你也是不会的......
房子不是一天就造成的，要耐心的花时间，按步骤学习，才能盖高楼。

额，虚心接受批评，boss要求周三给他演示下，我才出此下策，大神能给指点下吗，socket通信代码加哪，如果通知加载新的图片

哪儿都行啊。SOCKET还是CSocket什么的？
服务端已经收到了还是两头都没写呢？这个怎么说呢，问得有点笼统。

不懂mfc，用api咯，条条大路通罗马

MFC刚上手，你就做这个。框架就够你喝一壶的。你还是控制台吧。或者APIDELPHI示例
function TfrmScreen.CaptureScreen(AFileName:String;pressvalue: integer):string;
var
VBmp: TBitmap;
MyJPEG:TJPEGImage;
begin
VBmp := TBitmap.Create;
try
VBmp.Width := Screen.Width;
VBmp.Height := Screen.Height;
BitBlt(VBmp.Canvas.Handle, 0, 0, Screen.Width, Screen.Height, GetDC(0), 0,0, SRCCOPY);
MyJPEG:=TJPEGImage.Create;
MyJPEG.Assign(VBmp);
MyJPEG.CompressionQuality:=pressvalue;
MyJPEG.Compress;MyJPEG.SaveToFile('images\\'+inttostr(iName)+AFileName);
mmoInfo.Lines.Add('images: '+inttostr(iName)+AFileName+' saved');
imgeShow.Picture.LoadFromFile('images\\'+inttostr(iName)+AFileName);//Sleep(500);
finally
MyJPEG.Free;
VBmp.Free;
end;
end;procedure TfrmScreen.FormCreate(Sender: TObject);
begin
iName:=1;
end;procedure TfrmScreen.tmr1Timer(Sender: TObject);
begin
//调用格式：CaptureScreen(文件名称,压缩比例（数值越大约清晰）)
Inc(iName);
CaptureScreen('00.jpg',300);
end;procedure TfrmScreen.N1Click(Sender: TObject);
begin
      tmr1.Enabled:=True;
      frmScreen.Text:='开始屏幕观察';
end;procedure TfrmScreen.N2Click(Sender: TObject);
begin
      tmr1.Enabled:=False;
       frmScreen.Text:='暂停屏幕观察';
end;

API 示例
#include<windows.h>

HANDLE DDBtoDIB( HBITMAP bitmap, DWORD dwCompression, HPALETTE  hPal,DWORD * sizeimage) ;
BOOL CapScreen(LPTSTR FileName);//截屏函数

HANDLE DDBtoDIB( HBITMAP bitmap, DWORD dwCompression, HPALETTE  hPal,DWORD * sizeimage)
{
    BITMAP              bm;
    BITMAPINFOHEADER    bi;
    LPBITMAPINFOHEADER     lpbi;
    DWORD             dwLen;
    HANDLE            hDib;
    HANDLE            handle;
    HDC               hdc;

    //不支持BI_BITFIELDS类型
    if( dwCompression == BI_BITFIELDS )
        return NULL;

    //如果调色板为空，则用默认调色板
    if (hPal==NULL)
        hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE );

    //获取位图信息
    GetObject(bitmap,sizeof(bm),(LPSTR)&bm);

    //初始化位图信息头
    bi.biSize        = sizeof(BITMAPINFOHEADER);
    bi.biWidth        = bm.bmWidth;
    bi.biHeight         = bm.bmHeight;
    bi.biPlanes         = 1;
    bi.biBitCount        = bm.bmPlanes * bm.bmBitsPixel;
    bi.biCompression    = dwCompression;
    bi.biSizeImage        = 0;
    bi.biXPelsPerMeter    = 0;
    bi.biYPelsPerMeter    = 0;
    bi.biClrUsed        = 0;
    bi.biClrImportant    = 0;

    //计算信息头及颜色表大小
    int ncolors = (1 << bi.biBitCount); if( ncolors> 256 )
        ncolors = 0;
    dwLen  = bi.biSize + ncolors * sizeof(RGBQUAD);

    // we need a device context to get the dib from
    hdc = GetDC(NULL);
    hPal = SelectPalette(hdc,hPal,FALSE);
    RealizePalette(hdc);

    //为信息头及颜色表分配内存
    hDib = GlobalAlloc(GMEM_FIXED,dwLen);

    if (!hDib){
        SelectPalette(hdc,hPal,FALSE);
        ReleaseDC(NULL,hdc);
        return NULL;
    }

    lpbi = (LPBITMAPINFOHEADER)hDib;
    *lpbi = bi;
    //调用 GetDIBits 计算图像大小
    GetDIBits(hdc, bitmap, 0L, (DWORD)bi.biHeight,
            (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS );

    bi = *lpbi;
    //图像的每一行都对齐(32bit)边界
    if (bi.biSizeImage == 0){
        bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8)
                        * bi.biHeight;
    if (dwCompression != BI_RGB)
            bi.biSizeImage = (bi.biSizeImage * 3) / 2;
    }

    //重新分配内存大小，以便放下所有数据
    dwLen += bi.biSizeImage;
    if (handle = GlobalReAlloc(hDib, dwLen, GMEM_MOVEABLE))
        hDib = handle;
    else{
        GlobalFree(hDib);

        //重选原始调色板
        SelectPalette(hdc,hPal,FALSE);
        ReleaseDC(NULL,hdc);
        return NULL;
    }

    //获取位图数据
    lpbi = (LPBITMAPINFOHEADER)hDib;

    //最终获得的DIB
    BOOL bgotbits = GetDIBits( hdc, bitmap,
                  0L,                      //扫描行起始处
                (DWORD)bi.biHeight,      //扫描行数
                (LPBYTE)lpbi             //位图数据地址
                + (bi.biSize + ncolors * sizeof(RGBQUAD)),
                (LPBITMAPINFO)lpbi,      //位图信息地址
                (DWORD)DIB_RGB_COLORS);  //颜色板使用RGB

    if( !bgotbits )
    {
        GlobalFree(hDib);

        SelectPalette(hdc,hPal,FALSE);
        ReleaseDC(NULL,hdc);
        return NULL;
    }

    SelectPalette(hdc,hPal,FALSE);
    ReleaseDC(NULL,hdc);
    *sizeimage=bi.biSizeImage;
    return hDib;
}

BOOL CapScreen(LPTSTR FileName)
{
    DWORD sizeimage;
    HDC hdc = CreateDC("SHOWSCREEN", NULL, NULL, NULL);
    HDC CompatibleHDC = CreateCompatibleDC(hdc);
    HBITMAP BmpScreen = CreateCompatibleBitmap(hdc,GetDeviceCaps(hdc, HORZRES),GetDeviceCaps(hdc, VERTRES));
    SelectObject(CompatibleHDC, BmpScreen);
    BitBlt(CompatibleHDC,0,0,GetDeviceCaps(hdc, HORZRES), GetDeviceCaps(hdc, VERTRES),hdc,0,0,SRCCOPY);

HANDLE  pbitmapwithoutfileh=DDBtoDIB(BmpScreen, BI_RGB,0,&sizeimage);
    BITMAPFILEHEADER bfh;
   //设置位图信息头结构
    bfh.bfType = ((WORD)('M'<< 8)|'B');
    bfh.bfReserved1 = 0;
    bfh.bfReserved2 = 0;
    bfh.bfSize = 54+sizeimage;
    bfh.bfOffBits = 54;
    //创建位图文件
HANDLE  hFile=CreateFile(FileName,GENERIC_WRITE,0,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);
DWORD dwWrite;
// 写入位图文件头
WriteFile(hFile,&bfh,sizeof(BITMAPFILEHEADER),&dwWrite,NULL);
// 写入位图文件其余内容
WriteFile(hFile,pbitmapwithoutfileh,bfh.bfSize,&dwWrite,NULL);
DeleteDC(hdc);

CloseHandle(CompatibleHDC);
return true;
}

int main(void)
{
CapScreen("d:\\SnapScreen.bmp");
return 0;
}

调试易

高分求助MFC图像处理方面的程序

解决方案 »