7.1.6 Interface Freezes - VisualCron - Forum

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I just upgraded to 7.1.6. Using Windows Server 2012, I was switching back and forth between different RDP sessions. On two occasions, when I RDP'd back to the Server with Visual Cron on it, the Visual Cron interface was frozen. There was nothing I could do to get it to release. One time, when frozen, I eventually got a "Visual Cron Must restart box". Not sure if I caused it or whether it happened after time.

Here is the error log:

An unhandled error has occured (please send the information below to support@visualcron.com):

Client version: - (2014-04-16 05:22:29)
Server version: 7.1.6
Protocol: 7.0.0
OS: WindowsServer2012Standard

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 System.Drawing.Graphics.CopyFromScreen(Int32 sourceX, Int32 sourceY, Int32 destinationX, Int32 destinationY, Size blockRegionSize)
at System.Drawing.Graphics.CopyFromScreen(Point upperLeftSource, Point upperLeftDestination, Size blockRegionSize)
at Infragistics.Win.ControlUIElementBase.CaptureOldImage(UIElement element)
at Infragistics.Win.TransitionInfo..ctor(UIElement element, Transition transition, TransitionSettings settings)
at Infragistics.Win.ControlUIElementBase.InitiateTransition(TransitionSettings settings, Transition transition, UIElement element)
at Infragistics.Win.UltraWinToolbars.RibbonGroupUIElement.OnMouseLeave()
at Infragistics.Win.ControlUIElementBase.ElementEntered(UIElement element, Boolean triggerMouseLeavesOnly)
at Infragistics.Win.ControlUIElementBase.SyncMouseEntered(Boolean triggerMouseLeavesOnly, UIElementInputType inputType, Boolean ignoreLastElementEntered)
at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
at Infragistics.Win.UltraControlBase.OnMouseLeave(EventArgs e)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


It "might" be related to a control that we use for UI, Infragistics, we will be upgrading this control for the next version (7.1.7.). It would be interesting if you could test if it works better there. You can try this build here:

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