Windows Messages sent to an ActiveX Control.

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Hi all,

[Background]I have a standalone c# application that renders flash and pdf's via activeX controls. But they're actually rendered into a 3d directx environment., and events are then injected into the form via windows messaging system (WM_MOUSE events). However, I need to filter out some of the random windows messages which are being generated by using this method.

[The Question]Is there a way to capture Windows Message events that are being passed to an activeX control? I'm overriding the forms WndProc to capture the events being sent to the form, but WM_MOUSELEAVE for example, still fires in the activex controls window. Its these I'm trying to prevent.

Cheers in advance for any help.

Posted 19-Oct-10 7:07am

cal_sof

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E.F. Nijboer 19-Oct-10 13:55pm

Could it be you should use WM_NCMOUSELEAVE. Also, TrackMouseEvent could be quite interesting I think.
http://msdn.microsoft.com/en-us/library/ms646265%28v=VS.85%29.aspx

cal_sof 19-Oct-10 17:22pm

unless Im mistaken WM_NCMOUSELEAVE is just a mouse leave even on the non client area. Catching that doesn't stop the activeX receiving a WM_MOUSELEAVE event though. Looking into that TrackMouseEvent, but doesn't seem to be quite what I'm after. I literally just need to filter one or two messages.

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aidin Tajadod · Answer 1 · 2010-10-19T13:34:00

Solution 1

Hi cal_sof,

you need some API programing.
Look at these(may give you some idea):
http://msdn.microsoft.com/en-us/library/ms632589(VS.85).aspx[^]

http://www.netframeworkdev.com/windows-presentation-foundation-wpf/how-to-prevent-getting-focus-from-mouse-click-27053.shtml[^]

I hope it helps.

Posted 19-Oct-10 13:34pm

aidin Tajadod

Updated 19-Oct-10 13:56pm

v2