Exception after opening Options panel 7 times in within the same mRemoteNG instance

[kmscode]

Expected Behavior

Options panel should open every time requested.

Current Behavior

Eventually mRemoteNG will crash with an exception.

Possible Solution

Steps to Reproduce (for bugs)

1. Open Options Panel
2. OK or Cancel out of the panel
3. Repeat 6 or 7 times
4. mRemoteNG will crash with the following exception:

System.ComponentModel.Win32Exception
  HResult=0x80004005
  Message=Error creating window handle.
  Source=System.Windows.Forms
  StackTrace:
   at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
   at System.Windows.Forms.Control.CreateHandle()
   at System.Windows.Forms.Form.CreateHandle()
   at System.Windows.Forms.Control.get_Handle()
   at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
   at mRemoteNG.App.ProgramRoot.ApplicationOnThreadException(Object sender, ThreadExceptionEventArgs e) in C:\Users\skaim\Documents\Source\mRemoteNG\mRemoteV1\App\ProgramRoot.cs:line 86
   at System.Windows.Forms.Application.ThreadContext.OnThreadException(Exception t)
   at System.Windows.Forms.Control.WndProcException(Exception e)
   at System.Windows.Forms.Control.ControlNativeWindow.OnThreadException(Exception e)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Context

Your Environment

• Version used: 1.77 - removemagiclib branch
• Operating System and version (e.g. Windows 10 1709 x64): Win 1809 x64

[kmscode]

@jcefoli Opened this issue based on gitter chat.

[jotatsu]

I got a more detailed stack trace

at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
at System.Windows.Forms.Control.CreateHandle()
at System.Windows.Forms.Form.CreateHandle()
at System.Windows.Forms.Control.get_Handle()
at System.Windows.Forms.Control.CreateGraphicsInternal()
at System.Windows.Forms.Control.CreateGraphics()
at mRemoteNG.UI.GraphicsUtilities.GdiPlusGraphicsProvider.GetResolutionScalingFactor() in D:\Open\mRemoteNG\mRemoteV1\UI\GraphicsUtilities\GdiPlusGraphicsProvider.cs:line 16
at mRemoteNG.UI.DisplayProperties.get_ResolutionScalingFactor() in D:\Open\mRemoteNG\mRemoteV1\UI\DisplayProperties.cs:line 14
at mRemoteNG.UI.DisplayProperties.ScaleWidth(Single width) in D:\Open\mRemoteNG\mRemoteV1\UI\DisplayProperties.cs:line 41
at mRemoteNG.UI.Controls.Base.NGCheckBox..ctor() in D:\Open\mRemoteNG\mRemoteV1\UI\Controls\Base\NGCheckBox.cs:line 28
at mRemoteNG.UI.Forms.OptionsPages.NotificationsPage.InitializeComponent() in D:\Open\mRemoteNG\mRemoteV1\UI\Forms\OptionsPages\NotificationsPage.Designer.cs:line 61
at mRemoteNG.UI.Forms.OptionsPages.NotificationsPage..ctor() in D:\Open\mRemoteNG\mRemoteV1\UI\Forms\OptionsPages\NotificationsPage.cs:line 12
at mRemoteNG.UI.Forms.FrmOptions.CompileListOfOptionsPages() in D:\Open\mRemoteNG\mRemoteV1\UI\Forms\FrmOptions.cs:line 65
at mRemoteNG.UI.Forms.FrmOptions.frmOptions_Load(Object sender, EventArgs e) in D:\Open\mRemoteNG\mRemoteV1\UI\Forms\FrmOptions.cs:line 32
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

working on this one