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Turning a plain X11 Window into a GTK Window

Sample Code (HOWTO)
BSD License
While ordinary X11 program compile and run on the Nokia 770, the virtual keyboard/handwriting recognition only interacts with GDK. So the first step, is to create a GDK wrapper around a plain X11 window. I'll show how the soft keyboard can be turned on/off in a separate snippet.

Versions Of This Snippet::

Rene Hexel
Snippet ID Download Version Date Posted Author Delete
312006-11-13 22:02Rene Hexel

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Latest Snippet Version: :1

#include <X11/Xlib.h>
#include <X11/Xutil.h>

/* After the standard includes, add the following: */
#include <hildon-widgets/hildon-program.h>
#include <gtk/gtkmain.h>
#include <gtk/gtk.h>


int main(int argc, char *argv[])
    Display    *dpy;            /* the X display to use */
    Window      win;            /* the actual X window */
    ...                         /* other variables we might use */
     * Add this to turn your program into a Hildon program:
    HildonProgram *program;
    GdkWindow *gdkWindow;

    gtk_init(&argc, &argv);
    program = HILDON_PROGRAM(hildon_program_get_instance());
    g_set_application_name("Hello maemo!");

    /* Find the code that opens the Display and creates the X Window: */
    dpy = XOpenDisplay(NULL);
    win = XCreateWindow(dpy, ...);
    XMapWindow(dpy, win);

     * Now that the window has been mapped, we can turn it into a GDK window:
    gdkWindow = gdk_window_foreign_new(win);

     * Add gtk_main_iteration() to the X11 event loop:
    while (!quit)
        XEvent event;

        XNextEvent(dpy, &event);

        ... /* handle X event as usual, then handle GTK events: */

        while (gtk_events_pending()) gtk_main_iteration();

    /* Unreference the GDK window before destroying the X window: *


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