Question

I registered Hotkey: Ctrl + Space. Hotkey message is sent to:

private void Hotkey_press()
{
... // I want to show tooltip "Hello" at current mouse location.
}

Is there any way to show this tooltip even the mouse doesnt point to any control and it is outside my Window.Form1?

Edit: That ToolTip can show even the form lost focus or hide

Answer 1

You want something like

ToolTip tt = new ToolTip();
IWin32Window win = this;
tt.Show("String", win, mousePosition);

Where the MousePosition can be obtained from the MouseEventArgs via

private SomeMouseEventHandler(object sender, MouseEventArgs e)
{
    System.Drawing.Point mousePosition = e.Location;
    ...
}

or using

System.Drawing.Point mousePosition = Cursor.Position;

also, you may want to set a longer duration for which the ToolTip is displayed, well just use the overloads available for the Show method, tt.Show("String", win, mousePosition, 5000); will display the tool tip for 5 seconds.

I hope this helps.