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using the MouseHover Event (Read 3930 times)

maxnetpromo YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 21 Joined: Mar 5^th, 2006	using the MouseHover Event Mar 28^th, 2006 at 8:34pm	Print Post
	I wish to use the mouseHover to display information about the selected objects(Boxes or Arrows). is it possible?. I noticed not many methods are supported by this event. I guess i need to use the e.GetType() method. Any tips pls. also how can i create a context menu for a selected item when pressing the mouse right click button? thankx Adrian

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: using the MouseHover Event Reply #1 - Mar 29^th, 2006 at 7:32am	Print Post
	MouseHover is declared in the FlowChart's base class - Control. I don't know whether it is raised at all, but if it is, you can use the fc.ClientToDoc method to get the logical coordinates of the mouse pointer location reported by MouseHover. Then use methods such as GetBoxAt and GetArrowAt to find out which object is under the mouse. You could take a look at the FlowChart.NET sample projects, many of them display context menus. E.g. check the DirTree or the DBDesign samples. Stoyan


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maxnetpromo YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 21 Joined: Mar 5^th, 2006	Re: using the MouseHover Event Reply #2 - Apr 4^th, 2006 at 9:03pm	Print Post
	it seem the mouseover event is raised. Can you explain how the fc.ClientToDoc works pls. it requires a Point or Rectangle objectas input parameters. From where do i get those pls? I guess that Point would be the mouse X,Y co-ordinates however they are not accessible using the e. notation

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: using the MouseHover Event Reply #3 - Apr 5^th, 2006 at 7:24am	Print Post
	If there aren't X and Y parameters passed to the MouseHover handler, try using the static Control.MousePosition property. It gives you the mouse position in screen coordinates, so you must convert first to local client coordinates, then to document logical coordinates, .e.g. PointF docpt = fc.ClientToDoc(fc.PointToClient(MousePosition));


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maxnetpromo YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 21 Joined: Mar 5^th, 2006	Re: using the MouseHover Event Reply #4 - Apr 5^th, 2006 at 8:31am	Print Post
	i did it and the method is working perfectly. The box at that locationis being returned. I wanted to implement this method so i could display my component properties on a panel with labels. I put an if condition to check whether a box is returned since if the mouse is hovered on an empty area a null is returned. this works fine, however the values are not being displayed in the labels. It only works when i hover the mouse outside the flowchart canvas area region and put it back in and point to a component (box). and it only works once. i have to go out again and repaet the process to work for another component. I am running the method in a single thread. would it help if i run it on a separate thread?

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: using the MouseHover Event Reply #5 - Apr 5^th, 2006 at 8:57am	Print Post
	It seems MouseHover is raised at most once after the mouse enters a control. Try starting a timer from theMouseMove handler, and in the Timer.Tick handler update the labels and stop the timer.


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maxnetpromo YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 21 Joined: Mar 5^th, 2006	Re: using the MouseHover Event Reply #6 - Apr 5^th, 2006 at 10:54am	Print Post
	it does not seem to be working that way. its still the same problem

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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: using the MouseHover Event Reply #7 - Apr 5^th, 2006 at 11:07am	Print Post
	Why wouldn't it work, are not the MouseMove and Timer events raised ?


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maxnetpromo YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 21 Joined: Mar 5^th, 2006	Re: using the MouseHover Event Reply #8 - Apr 5^th, 2006 at 11:25am	Print Post
	It worked. I used the Windows.Forms mousemove event instead of the Flowchart mousemove event. thank you very much. its perfect now.

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