Returns whether the window is part of the current active toplevel.
The active toplevel is the window receiving keystrokes.
The return value is true if the window is active toplevel itself.
You might use this function if you wanted to draw a widget
differently in an active window from a widget in an inactive window.
Returns whether the window is part of the current active toplevel.
The active toplevel is the window receiving keystrokes.
The return value is true if the window is active toplevel itself. You might use this function if you wanted to draw a widget differently in an active window from a widget in an inactive window.