Codejock Developer Community : Propagating WM

Codejock Developer Community : Propagating WM_MOUSESCROLL to report control http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 14 May 2026 05:38:20 +0000 Mon, 02 Nov 2009 07:48:17 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=15526 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[Propagating WM_MOUSESCROLL to report control : Sometimes it is desirable to propagate...]]> http://forum.codejock.com/forum_posts.asp?TID=15526&PID=54459&title=propagating-wm-mousescroll-to-report-control#54459 Author: znakeeye
Subject: 15526
Posted: 02 November 2009 at 7:48am

Sometimes it is desirable to propagate the mouse wheel input to a child window that does not have focus. The na�ve approach is to fetch WM_MOUSEWHEEL in the parent window and propagate it to the report control. This works until you close the window and get stuck in a never-ending message-loop!

I sense I cannot get the desired behavior with CXTPReportControl. Since WM_MOUSEWHEEL is a bottom-to-top message, it cannot be used for this. I found another message, MSH_MOUSEWHEEL, that goes from top to bottom. Perhaps CXTPReportControl should handle this message?

http://blogs.msdn.com/oldnewthing/archive/2008/08/06/8835316.aspx
http://msdn.microsoft.com/en-us/library/ms645601(VS.85).aspx#_win32_The_WM_MOUSEWHEEL_Message

Anyway, is it possible to accomplish the above? If I scroll inside another child of my parent window, I want to trigger the "mouse wheel" event in the child report control.

]]> Mon, 02 Nov 2009 07:48:17 +0000 http://forum.codejock.com/forum_posts.asp?TID=15526&PID=54459&title=propagating-wm-mousescroll-to-report-control#54459