#40 Unhandled Exception when using crosshair icon

[Anonymous]

Does not happen always. I have not figured out yet when exactly it happens.
Steps to reproduce (sometimes):
1. go to click mouse event.
2. go to control, click on ...
3. click on crosshair icon, now exception occurs.

If I say continue after the exception and close the dialog and try again later, the error is gone.
Now that I want to capture the exception text, I cant get the error to occur.

[Benny Cohen]

Under what OS ? 32/64 bit ?

[Anonymous]

My OS is Windows Vista 32 bit service pack 2.
Here is the exception text:
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at QAliber.Repository.CommonTestCases.UITypeEditors.UIControlLocatorForm.btnCursor_MouseDown(Object sender, MouseEventArgs e)
at System.Windows.Forms.Control.OnMouseDown(MouseEventArgs e)
at System.Windows.Forms.ButtonBase.OnMouseDown(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.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)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4200 (NetFxQFE.050727-4200)
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
QAliber Test Builder
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/QAlibers/QAliber%20Test%20Builder/QAliber%20Test%20Builder.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
QAliber.Engine
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/QAliber.Engine/1.0.0.0__69c52b3db892d621/QAliber.Engine.dll
----------------------------------------
QAliber.TestModel
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/QAliber.TestModel/1.0.0.0__aac3b2e748180b41/QAliber.TestModel.dll
----------------------------------------
QAliber.RemotingModel
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/QAliber.RemotingModel/1.0.0.0__7ca69bfcd2253fef/QAliber.RemotingModel.dll
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
DockingControls
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Program%20Files/QAlibers/QAliber%20Test%20Builder/DockingControls.DLL
----------------------------------------
QAliber.Repository.CommonTestCases
Assembly Version: 1.0.0.18429
Win32 Version: 1.0.0.3
CodeBase: file:///C:/Program%20Files/QAlibers/QAliber%20Test%20Builder/User%20Assemblies/QAliber.Repository.CommonTestCases.dll
----------------------------------------
WindowsBase
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.4000 built by: QFE
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/WindowsBase/3.0.0.0__31bf3856ad364e35/WindowsBase.dll
----------------------------------------
ManagedWinapi
Assembly Version: 0.3.0.0
Win32 Version: 0.3
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/ManagedWinapi/0.3.0.0__41eb0f6b4ccd675b/ManagedWinapi.dll
----------------------------------------
QAliber.Logger
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/QAliber.Logger/1.0.0.0__c4b865e92b70ed57/QAliber.Logger.dll
----------------------------------------
Accessibility
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
UIAutomationClient
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.4000 built by: QFE
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/UIAutomationClient/3.0.0.0__31bf3856ad364e35/UIAutomationClient.dll
----------------------------------------
UIAutomationTypes
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.4000 built by: QFE
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/UIAutomationTypes/3.0.0.0__31bf3856ad364e35/UIAutomationTypes.dll
----------------------------------------
UIAutomationProvider
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.4000 built by: QFE
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/UIAutomationProvider/3.0.0.0__31bf3856ad364e35/UIAutomationProvider.dll
----------------------------------------
UIAutomationClientsideProviders
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.4000 built by: QFE
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/UIAutomationClientsideProviders/3.0.0.0__31bf3856ad364e35/UIAutomationClientsideProviders.dll
----------------------------------------
System.Data
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
nuahjtro
Assembly Version: 1.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
ttmma138
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
lvubpcfu
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
f9r2oaex
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
gjiwskp2
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
smhyk5wl
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
QAliber.ImageHandling
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/QAliber.ImageHandling/1.0.0.0__7c86ea72c121888e/QAliber.ImageHandling.dll
----------------------------------------
lhj8xit-
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.4016 (NetFxQFE.050727-4000)
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
ZedGraph
Assembly Version: 5.1.5.28844
Win32 Version: 5.1.5.28844
CodeBase: file:///C:/Windows/assembly/GAC_MSIL/ZedGraph/5.1.5.28844__02a83cbd123fcd60/ZedGraph.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[Anonymous]

I can work around the error by focussing on different windows and all of a sudden the issue is gone.
If I focus on other applications again, then the issue can re-occur again.
Still no complete steps to reproduce.