Re: Tooltips and MouseMove event

Andrew,=20

The same problem shows in XP.  The workaround did always involve looking
for a change for the text being used for the tooltip (same vein as you
suggested).

Peter

-----Original Message-----
From: Discussion relating to the specifics of the C# and Managed C++
languages [mailto:[email protected]] On Behalf Of Eames,
Andrew
Sent: Thursday, July 12, 2007 8:56 AM
To: [email protected]
Subject: Re: [DOTNET-CX] Tooltips and MouseMove event

Sounds like a problem I ran into. Are you running under Vista by any
chance? I found that under Vista, setting the tooltip generates a
spurious mouse move event so setting the tooltip in a mouse move event
handler causes looping. Workaround is to only set the tooltip if it is
different from the current tooltip
  Andrew

-----Original Message-----
From: Discussion relating to the specifics of the C# and Managed C++
languages [mailto:[email protected]] On Behalf Of Peter
Osucha
Sent: Thursday, July 12, 2007 6:58 AM
To: [email protected]
Subject: [Spam:********** SpamScore] Re: [DOTNET-CX] Tooltips and
MouseMove event

Hi Fabian,

Thanks for the response.  This does seem to be very odd behavior.  FWIW,
you can duplicate the issue I was having with the code that follows my
email.

I did get this issue solved, however.  If you want, I can go into
details about what I did.

Peter

----------------------- Code to show this strange (to me) behavior
// Put a panel control on a form and copy and paste this into the code
section for the form
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace ToolTipandMouseMove
{
    public partial class Form1 : Form
    {
        ToolTip _tt;

        public Form1 ( )
        {
            InitializeComponent ( );

            _tt =3D new ToolTip ( );
            _tt.AutoPopDelay =3D 3000;
            _tt.InitialDelay =3D 100;
            _tt.SetToolTip(panel1, "This is my tooltip");
        }

        private void panel1_MouseMove ( object sender, MouseEventArgs e
)
        {
            _tt.SetToolTip ( panel1, "ToolTipTicks..." +
DateTime.Now.Ticks.ToString() );
        }
    }
}

-----Original Message-----
From: Discussion relating to the specifics of the C# and Managed C++
languages [mailto:[email protected]] On Behalf Of Fabian
Schmied
Sent: Thursday, July 12, 2007 3:05 AM
To: [email protected]
Subject: Re: [DOTNET-CX] Tooltips and MouseMove event

Hi Peter,

> Anyway, I have realized that it would be very beneficial to provide
> tooltips when the mouse hovers over some of the shapes I have drawn.
To
> try to implement this, I have created a ToolTip object in the
Cartridge
> class and have attempted to set it in two places - first, an event
> handler connected to the _canvas.MouseMove() event; second, in an
event
> handler connected to the _canvas.MouseHover() event.  Neither produces
> the desired effect.

Have you already solved this problem? If no, it might be useful if you
could post some code of what you're doing; ideally a small, complete
sample.

> The MouseMove() event seems to fire at intervals of about 500 ms
> regardless of whether or not I am moving the Mouse over the _canvas.
> The MouseHover() event never (very, very seldom) seems to fire.

This seems very strange, how do you determine how often these events
fire? Are you tracing something to the debug output or are you just
basing this on the fact that your tooltip doesn't appear? If the
latter, it's probably a tooltip problem rather than a mouse event
problem.

Fabian

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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