Gtkd how to filter TreeView according to user input

[Ali Çehreli via Digitalmars-d-learn]

On 01/17/2017 01:25 AM, Erdem wrote:

 > void main(string[] args)
 > {
 >     Main.init(args);
 >     new MyWindow();
 >     Main.run();
 > }

I have no experience with Gtkd but the code inside main looks 
fundamentally wrong. One would expect you to do something with the 
MyWindow object:

     auto w = new MyWindow();

And then use 'w' but I don't know how.

Ali