Show a tooltip programmatically

[Paul E Collins]

How can I show a tooltip programmatically? I want to make it appear
over a particular control at the specific time I choose, and not rely
on the user's mouse movements. I don't mind using some Windows API
call for this, if somebody can explain the parameters.

Eq.

 

[Kevin Spencer]

You don't need Windows API to do this at all. Use the ToolTip class.

public class blah : System.Windows.Forms.Control
{
private System.Windows.Forms.ToolTip toolTip;

protected int _ToolTipInterval = 3000;
public virtual int ToolTipInterval
{
get { return _ToolTipInterval; }
set { _ToolTipInterval = value; }
}

public string ToolTipText
{
get { return "TooTip"; }
}

protected override void OnMouseHover(EventArgs e)
{
base.OnMouseHover(e);
toolTip.Show("ZIndex: " + this.ZIndex.ToString(),
this, 5, 5, ToolTipInterval);
}

public blah()
{
this.toolTip = new System.Windows.Forms.ToolTip(this.components);
this.toolTip.AutoPopDelay = 5000;
this.toolTip.InitialDelay = 250;
this.toolTip.ReshowDelay = 50;
this.toolTip.ShowAlways = true;
}

}

--
HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

Hard work is a medication for which
there is no placebo.

 

[Paul E Collins]

[... sample code ...]
toolTip.Show("ZIndex: " + this.ZIndex.ToString(),
this, 5, 5, ToolTipInterval);

Sorry - I forgot to mention that I need this to work in .NET Framework
1.1, which (unlike 2.0) doesn't have the static ToolTip.Show method.
Any other suggestion?

Eq.