Here are some simplified examples on how to create input dialog box with GTK and Golang. Basically, what each programs does, is to invoke an empty dialog box and insert an input field or dropdown selection into the dialog box.
Below is the simplest way to get user input with GTK and Golang.
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.