嵌入式(setparent)directx游戏C#的窗口捕获

时间:2018-05-22 18:37:54

标签: c# directx screenshot

目标: - 捕获包含directx游戏窗口的winform窗口(如截图,但具体句柄)。

方案: - 在winform中我通常插入一个panel1。 - 我使用winapi SETPARENT在penel1

中插入一个directx主游戏窗口

问题: 捕获winform窗口(this.handle)时,panel1中嵌入游戏的图像不会出现。仅显示面板。 我无法使用ScreenShot方法,因为它将获得另一个窗口。

实施例: With screenshot. capturing the screen With WinAPI. capturing the specific window

public Image CaptureWindow(IntPtr handle, int imgX = 0, int imgY = 0, int largura = 0, int altura = 0)            
    {
        // get te hDC of the target window
        IntPtr hdcSrc = User32.GetWindowDC(handle);            
        // get the size
        User32.RECT windowRect = new User32.RECT();
        User32.GetWindowRect(handle, ref windowRect);
        if(largura == 0 || altura == 0)
        {
            largura = windowRect.right - windowRect.left;
            altura = windowRect.bottom - windowRect.top;
        }
        // create a device context we can copy to
        IntPtr hdcDest = GDI32.CreateCompatibleDC(hdcSrc);
        // create a bitmap we can copy it to,
        // using GetDeviceCaps to get the width/height
        IntPtr hBitmap = GDI32.CreateCompatibleBitmap(hdcSrc, largura, altura);            
        // select the bitmap object
        IntPtr hOld = GDI32.SelectObject(hdcDest, hBitmap);
        // bitblt over            
        //GDI32.BitBlt(hdcDest, 0, 0, largura, altura, hdcSrc, 0, 0, GDI32.SRCCOPY);
        GDI32.BitBlt(hdcDest, 0, 0, largura, altura, hdcSrc, imgX, imgY, GDI32.SRCCOPY);            
        // restore selection
        GDI32.SelectObject(hdcDest, hOld);            
        // clean up 
        GDI32.DeleteDC(hdcDest);
        User32.ReleaseDC(handle, hdcSrc);
        // get a .NET image object for it
        Image img = Image.FromHbitmap(hBitmap);            
        // free up the Bitmap object
        GDI32.DeleteObject(hBitmap);

       return img;
    }

1 个答案:

答案 0 :(得分:0)

使用带有Directx窗口的SetParent后,需要刷新winform。 只是:this.Refresh();