我正在编写一个拍摄屏幕截图的应用程序,但它会随机抛出 GDI+ 通用错误。不幸的是,一个通用错误并不能帮助我很好地调试。我的屏幕截图代码是:
static void CaptureScreen()
{
bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
// Create a graphics object from the bitmap
gfxScreenshot = Graphics.FromImage(bmpScreenshot);
// Take the screenshot from the upper left corner to the right bottom corner
gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
// Save the screenshot to the specified path that the user has chosen
bmpScreenshot.Save(savePath + "img" + times.ToString()+ ".png", ImageFormat.Png);
}
这偶尔会给我一个一般错误,所以我想“也许我应该处理位图和图形变量”
static void CaptureScreen()
{
bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
// Create a graphics object from the bitmap
gfxScreenshot = Graphics.FromImage(bmpScreenshot);
// Take the screenshot from the upper left corner to the right bottom corner
gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
// Save the screenshot to the specified path that the user has chosen
bmpScreenshot.Save(savePath + "img" + times.ToString()+ ".png", ImageFormat.Png);
bmpScreenshot.Dispose();
gfxScreenshot.Dispose();
}
然后删除所述文件:
for (int i = 1; i == times; i++)
{
File.Delete(savePath + @"\img" + i.ToString() + ".png");
}
times = 0;
但是,如果您运行两次,则表示该文件正在使用中,如果您正在写入同一个文件。有任何想法吗?