DoNETModal

DoNETModal[form]
displays the specified .NET form in the foreground and does not return until the form window is closed.

evaluates expr just before the form is closed and returns the result.

FormStartPosition

the position in which the window will be displayed

Typically, DoNETModal is used to implement a modal dialog box that needs to interact with Mathematica while the dialog box is active, or one that returns a result to Mathematica when it is dismissed.

Format: HTML | CDF