截屏不在窗口服务中工作c＃

Question

I am using to capture the screen and upload the image array to server. but its giving the win32 exception when taking screenshot, my code is as:

            private static Bitmap bmpScreenshot;
            private static Graphics gfxScreenshot;
            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);

            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            bmpScreenshot.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            byte[] bmpBytes = ms.GetBuffer();
            bmpScreenshot.Dispose();
            ms.Close();

The specific error coming as: Service cannot be started. System.ComponentModel.Win32Exception (0x80004005): The handle is invalid at System.Drawing.Graphics.CopyFromScreen(Int32 sourceX, Int32 sourceY, Int32 destinationX, Int32 destinationY, Size blockRegionSize, CopyPixelOperation copyPixelOperation) at ScrrenShare.ScreenShare.TraceService() in F:\\Umesh Projects\\ScreenShare\\ScreenShare\\ScreenShare\\ScreenShare.cs:line 48 at ScrrenShare.ScreenShare.OnStart(String[] args) in F:\\Umesh Projects\\ScreenShare\\ScreenShare\\ScreenShare\\ScreenShare.cs:line 29 at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state) Please let me know solution.The code is working fine in Window form application Thanks in adv.

Answer 1

Did you do this step?

Set the properties of the service in administrative tools -> services -> right click your service -> goto properties -> under Log On tab check allow to interact with desktop.