Tooltip on usercontrol

[Erikvandervelde]

Hi there!

 

I'm writing a usercontrol wich contains multiple buttons which I draw usering GDI+.

It aren't actually buttons (controls) but i just draw them.

Now i want to show a tooltip if the mouse moves over a button.

I tried to do this on the mousemove event:

 

Protected Overrides Sub OnMouseMove(ByVal e As system.Windows.Forms.MouseEventArgs)

 

Dim MyButton As OutlookBarButton

Me.MyTooltip.RemoveAll()

For Each Button In Me.buttons

If MyButton.Bounds.Contains(e.x, e.y) Then

Me.MyTooltip.SetToolTip(Me, MyButton.Title)

End If

Next

End sub

 

But this won't work.

The control doesn't show a tooltip at all.

How should I do this?!

Please understand that MyButton is NOT a control, but just a class.

So Me.mytooltip.SetToolTip(MyButton, MyButton.title) is not possible!

 

I hope someone can help me out!

 

Erik

[divil]

There is no .NET tooltip wrapper for implementing regional tooltips for a control. When I had to implement them in my toolbar control I had to use the win32 api tooltips through platform invoke, there is a fair amount of information in msdn on getting them working.

 

If you get stuck, post in this thread and I'll help.

[Erikvandervelde]

Dear Divil,

 

I don't know even where to start...

How do I implement the Win32 api tooltip???

Can you give me a simple example to get me started.

Thanks so far...

 

Erik

[divil]

I'm afraid there is no simple example, if I have time I'll try to knock up a sample for you. You'll have to be familiar with Platform Invoke and do some reading of MSDN on the various messages you send to establish a tooltip window and configure regions.

[Erikvandervelde]

Hi Divil,

 

I'll take al look on MSDN to find some information.

Thanks so far!

If you have a example or a URL for me. Please post it here.

 

Erik

[divil]

I've posted a sample for you in the code library, it should be more than enough to get you started.