Tooltip should not display on MouseHover

Question

I have a picturebox with an associated tooltip that I want to show when the picturebox is clicked, but not when the mouse is hovered over it. I tried creating an empty MouseHover event for the picturebox, but the tooltip is still displayed:

    private void pictureBox3_MouseHover(object sender, EventArgs e)
    {

    }

    private void pictureBox3_Click(object sender, EventArgs e)
    {
        int durationMilliseconds = 30000;
        toolTip1.Show(toolTip1.GetToolTip(pictureBox3), pictureBox3, durationMilliseconds);
    }

What can I do so that the tooltip is not displayed on MouseHover?

Events can have multiple methods tied to them. Try adding e.Handled =true to the hover event. That way the event is marked as handled and subsequent methods on that event are not called. — Lithium
– Lithium, Commented May 31, 2017 at 8:54

Romano Zumbé · Accepted Answer · 2017-05-31 10:03:08Z

3

Don't set a tooltip for pictureBox3 (remove it). Just show one:

// On class scope to have access from MouseEnter
ToolTip tt = new ToolTip();

private void pictureBox3_Click(object sender, EventArgs e)
{
    int durationMilliseconds = 30000;        
    tt.IsBalloon = true;
    tt.InitialDelay = 0;
    tt.Show("tooltip text", pictureBox3, durationMilliseconds);
}

To prevent the tooltip to be set permantly add an event handler to the picturebox for MouseEnter:

private void pictureBox3_MouseEnter(object sender, EventArgs e)
{
     tt.RemoveAll();
}

edited May 31, 2017 at 10:03

answered May 31, 2017 at 8:58

Romano Zumbé

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3 Comments

Q-bertsuit Over a year ago

Thanks! After a click the hover event is active again though. (I have removed the original tooltip)

Romano Zumbé Over a year ago

I have added a way to prevent this

Q-bertsuit Over a year ago

Thanks again for your help!

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