GTK3 and Glade3 using Kotlin

GTK windows design using glade builder

This code explains how to use Kotlin to program GTK3 and Glade3 using Cygwin Glade designer

Install cygwin with below dependencies

mingw64-x86_64-gtk3    3.22.28-1
glade                                 3.20.3-1
xorg-server                       1.20.4-1
xinit                                   1.4.1-1

launch cygwin and export the PATH as

export PATH=$PATH:/usr/x86_64-w64-mingw32/sys-root/mingw/bin

The execute the gradle command to run the app, refer github for gradle command

Below is the Kotlin code

package plot

import kotlinx.cinterop.*
import gtk3.*


fun main() = memScoped {
    var argc = alloc<IntVar>().apply { this.value = 0 }
    gtk_init(argc.ptr, null)
    
    var builder = gtk_builder_new()
    gtk_builder_add_from_file (builder, "glade/window_main.glade", null)
    
    var window = gtk_builder_get_object(builder, "window_main")!!.reinterpret<GtkWidget>()
    
    g_signal_connect_data(
        window.reinterpret(), 
        "destroy", 
        staticCFunction {  
            -> gtk_main_quit()
        }.reinterpret(), 
        null, 
        null, 
        0u
    )
    
    g_object_unref(builder)

    gtk_widget_show(window)
    gtk_main()
}

Example window output

You can modify the glade file and add components accordingly

You can bind event as specified in the code

    g_signal_connect_data(
        window.reinterpret(), 
        "destroy", 
        staticCFunction {  
            -> gtk_main_quit()
        }.reinterpret(), 
        null, 
        null, 
        0u
    )

Source Code

End Of Article !