Eclipse Community Forums: Standard Widget Toolkit (SWT)

Help

Home

Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Issue with Visio Viewer (Visio viewer OLE issue)

Show: Today's Messages :: Show Polls :: Message Navigator

Issue with Visio Viewer [message #1751720]

Thu, 12 January 2017 20:40

Alain Picard

Messages: 266
Registered: July 2009

Senior Member

I am attempting to provide a view that launches the Visio Viewer within our application and I am facing a few problems.

Whether I run the Viewer just like in the example snippets (just a regular class with a main) or as a view within our RCP application, I am able to load the vsdx file and see the diagram, but I can't get the viewer to respond to mouse events in the canvas area. Also resizing of the window doesn't refresh leading to weird results. Selecting a shape doesn't report any errors but doesn't show any selection and lastly I can't seem to get any event when listening. BTW I can use the mouse on the scrollbar and viewer menu without issue.

For testing I created a minimal C# Form application and everything works fine from there. Also if I don't load a document, the resizing issue doesn't happen.

Has anyone experienced similar issues with the Visio Viewer or other Active X controls ? Is there something that traps the mouse events or disables the canvas window ?

Any help or pointers would be appreciated.

Thanks
Alain

Attachment: VViewer Redraw.PNG
(Size: 4.69KB, Downloaded 189 times)

Report message to a moderator

Re: Issue with Visio Viewer [message #1752350 is a reply to message #1751720]

Sun, 22 January 2017 20:40

Alain Picard

Messages: 266
Registered: July 2009

Senior Member

I've made a number of additional attempts and I hope that some extra details might help someone provide some insight.

As stated, I had 2 problems, getting the viewer to get the focus and respond to event and the resizing.

In googling I found out that the MS code is supposed to do a SetObjectRects and a SetExtent. In the OleClientSite I noticed that the setExtent was never called and the only want that it can be called is from a OnPosRectChange event from the iOleInPlaceSite.

So I forced a call to OnPostRectChange from a conditional breakpoint and the resize problem is gone. But then it begs the question why aren't we receiving this event. But this would only address one of the issues.

My research is leaving me to believe that I might be dealing with a IOleInPlaceSiteWindowless instead of iOleInPlaceSite as supported by SWT OleClientSite. Am I looking at the wrong place or can this be the source of the issue.

Thanks

Report message to a moderator