Hi I did a frontend for a tool with glade. Now I have to write the backend, and there is one Problem. I want to write from a Dialog or a function into the mainwindow. Yes, I read the Glade-FAQ and tried the gtl_object_[set|get]_data funktions. But I have got problems to pass the pointer to a new window, because the create_funktions for the widgets are void. mfg axel