hide form and get input

[Anonymous]

How do I hide a form and get input from the user. Is this case I need XYZ coordinates from the screen. Thanks. 

[Paulio]

Get the current UIDocument then use UIDoc.Selection.PickPoint

[Joe.Ye]

In a button click handler, set the form's DialogResult to DialogResult.OK, or Cancel.

      DialogResult = DialogResult.OK;

The the form will be hidden.

In the Revit Execute() method, after the code of ShowDialog(), call Selection.PickPoint() to ask the user to pick a point.

After the PickPoint() method, you can show the dialog again. The coordiantes of the point picked by calling PickPoint() is Revit model coordinates system.