Question

我试图制作一部温树胶片,在固定间隔中播放。我认为,我的守则是正确的,但在我试图操作时,我收到了错误的信息“System.Runtime.Interop Servicess”。外部外观没有处理,在GDI+ 发生通用错误

    System.Windows.Forms.Timer t = new System.Windows.Forms.Timer();
    Thread th;
    private static Bitmap bmpScreenshot;
    private static Graphics gfxScreenshot;

    void TakeScreenShot()
    {
        bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
        gfxScreenshot = Graphics.FromImage(bmpScreenshot);
        gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
        bmpScreenshot.Save(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + @"ScreenCaptures", ImageFormat.Png);
        th.Abort();
    }

    void StartThread(object sender, EventArgs e)
    {
        th = new Thread(new ThreadStart(TakeScreenShot));
        th.Start();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        Directory.CreateDirectory(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + @"ScreenCaptures");
        t.Interval = 500;
        t.Tick += new EventHandler(StartThread);
        t.Start();
    }

令我感到不安的是:

bmpScreenshot.Save(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + @"ScreenCaptures", ImageFormat.Png);

任何关于什么会错的想法? 提前感谢。

Answer 1

你们需要保存实际档案名称,例如:

bmpScreenshot.Save(Environment.GetFolderPath
    (Environment.SpecialFolder.DesktopDirectory) 
    + @"ScreenCaptures
ewfile.png", ImageFormat.Png);

你的法典正在走一条不包含档案名称的道路。此外,还检查确保环境。结局不“......”就回到了一条道路上,或者说你走了一条“/”。

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