https://developer.gnome.org/gtk3/stable/GtkWidget.html#gtk-widget-override-background-color

...process (C:\Users\Standardbenutzer\Documents\Dlang_Projects\GTKD_Test.exe) has returned the signal 1

I'm not familiar with Coedit, but the run options seem to contain a field...

Thanks a lot for your answer, getcwd() returns the path where coedit is located on...

My first guess would be that Coedit does not use the directory where the executable...

...process (C:\Users\Standardbenutzer\Documents\Dlang_Projects\GTKD_Test.exe) has returned the signal 1...

Hello,
why does this code not work?

        RGBA rgb = new RGBA(1,0.5,0...

What are you trying to accomplish?

-- 
Mike Wey

Thanks for your reply, but now the button is always on the bottom right :(

    this...

The way GTK manages width and height, usually widgets are given the minimum size they...