Codejock Developer Community : [Solved] Markup Events Crash on Form Unload Me http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 15 May 2026 05:43:32 +0000 Wed, 30 Dec 2009 23:12:52 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=15940 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[[Solved] Markup Events Crash on Form Unload Me : I had a support ticket open for...]]> http://forum.codejock.com/forum_posts.asp?TID=15940&PID=55926&title=solved-markup-events-crash-on-form-unload-me#55926 Author: jpbro
Subject: 15940
Posted: 30 December 2009 at 11:12pm

I had a support ticket open for a problem that I was having when using Markup events in the ReportControl. In my program, I wanted to unload the form hosting the reportcontrol when a markup image was clicked. Typically, this would be achieved simply by calling Unload Me. Unfortunately, this was crashing the IDE and generating an error report in the compiled EXE. Mark from Codejock suggested this workaround and it works well:


Private Const WM_CLOSE = &H10

Private Declare FunctionPostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long,ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

Public Sub XamlMouseDown(Reserved1 As Object, Reserved2 As Object)
  ' Sample event raised from XAML in ReportControl

  PostMessage Me.hwnd, WM_CLOSE, vbNull, vbNull    ' Use this instead of Unload Me to prevent crash
End Sub


In case anyone else encounters the same problem, please use this workaround.

Happy New Year everyone!
]]> Wed, 30 Dec 2009 23:12:52 +0000 http://forum.codejock.com/forum_posts.asp?TID=15940&PID=55926&title=solved-markup-events-crash-on-form-unload-me#55926