ComboBox has no tabStop

[_Andre_]

By default a combo box should have tabstop to reach the ui control by using the keyboard.

import dgui.all;

class MyForm: Form
{
    this()
    {
        size = Size(130, 140);

        with(new Button())
        {
            parent = this;
            dock = DockStyle.top;
            height = 20;
            text = "Hello World";
        }

        with(new ComboBox())
        {
            parent = this;
            dock = DockStyle.top;
            height = 20;
        }

        with(new Button())
        {
            parent = this;
            dock = DockStyle.top;
            height = 20;
            text = "Hello World";
        }
    }
}

int main()
{
    return Application.run(new MyForm());
}