Dialogs and Level-0 Widgets Only. If the value of this attribute is set to 1, a special "resize border" will be drawn around the widget or dialog. If the value of this attribute is set to 0, no border appears around the widget or dialog and it is not resizable. You cannot resize the widget or dialog from the keyboard (without a mouse interface). To use the resize border:
1. Move the mouse until the pointer-cursor is on the border (the pointer-cursor changes into the resize-cursor)
2. Press and hold the left mouse button
3. Move the mouse to resize the widget
4. Release the mouse button. The widget will redraw to the new size.
