Have a look on CodeProject (C#) :)
leppie
2009-02-27 03:03:17
It's a standard windows mechanism (since XP), they're called Balloon Tooltips. Depending on where you want to display the balloon, you can use CEdit
's ShowBalloonTip
method or Shell_NotifyIcon
API.
There's NotifyIcon class in Windows Forms, but I don't know about TextBox, you would probably have to use interop.
You could just use System.Windows.Forms.ToolTip.
using System.Windows.Forms;
...
ToolTip myTip = new ToolTip; // create tooltip
myTip.IsBaloon = true; // give it a round shape
myTip.SetToolTip( myTool, "You're hovering above myTool." ); // register popup message for 'myTool'
...
myTip.Show(myTool, "Forced modal pop-up.", 1000 ); // display pop up message for 1 sec at 'myTool'