[GTK3] [C] [Windows] Using backspace or arrow keys in text entry

This is a follow up to the thread that can be found here: [C] [GTK] [Windows 11] [msys2] Trying to produce a working .exe on Windows

I have switched to GTK3 and the compatibility with windows seems to be better because now I am able to input characters into text entry fields.

However, I am unable to backspace or move the position of the cursor with the arrow keys. I am only able to input a character using the keyboard, and then it is “locked” in position.

I can enter the phrase “Hello World” and for each letter character or space I press on the keyboard, the following error is displayed in terminal:

“Gdk-WARNING **: 11:40:40.044: Failed to translate keypress (keycode: 68) for group 0 (A0000409) because we could not load the layout.”

Where, the integer keycode will change depending on which key I press.

The backspace and arrowkeys are completely unresponsive. There are no error messages displayed.

Should backspace or arrow key functionalities be a separate callback? I haven’t been able to figure out. I will attach my code to this thread for clarity on what I’m trying to do.

#include <stdlib.h>
#include <gtk/gtk.h>
#include <stdbool.h>

static GtkTextBuffer *textBuffer = NULL; //textBuffer = gtk_text_buffer_new(NULL);
static GtkTextBuffer *output = NULL; //output = gtk_text_buffer_new(NULL);

static void
click1_cb (GtkButton *btn,
           gpointer user_data)

  GtkTextIter start, end;
  gtk_text_buffer_get_bounds(textBuffer, &start, &end);

  const GtkTextIter* start2 = &start;
  const GtkTextIter* end2 = &end;

  char* text = gtk_text_buffer_get_text(textBuffer,start2,end2,false);

  gtk_text_buffer_set_text (output, text, -1);


int main(int argc, char** argv){

  GtkWidget *window, *grid, *textField1, *textField2, *btn, *vbox;

  gtk_init(&argc, &argv);

  textBuffer = gtk_text_buffer_new(NULL);
  output = gtk_text_buffer_new(NULL);

  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  gtk_window_set_default_size (GTK_WINDOW (window), 400, 300);
  g_signal_connect(window,"destroy", G_CALLBACK(gtk_main_quit),NULL);

  vbox = gtk_box_new(TRUE, 1);
  gtk_container_add(GTK_CONTAINER(window), vbox);

  textField1 = gtk_text_view_new_with_buffer(textBuffer);
  gtk_box_pack_start(GTK_BOX(vbox), textField1, TRUE, TRUE, 0);

  btn = gtk_button_new_with_label ("Execute.");
  g_signal_connect (btn, "clicked", G_CALLBACK (click1_cb), NULL);
  gtk_box_pack_start(GTK_BOX(vbox), btn, TRUE, TRUE, 0);

  textField2 = gtk_text_view_new_with_buffer(output);
  gtk_box_pack_start(GTK_BOX(vbox), textField2, TRUE, TRUE, 0);


  return 0;

Hello, Shawn! I know how to fix that issue, will let you know more once the fix is ready. It’s just a matter of a few days. Sorry for the inconvenience!


1 Like

Ok, MR almost ready! Could you please open an issue at https://gitlab.gnome.org/GNOME/gtk/-/issues? Be sure to include all the warnings that you get when running the application.


Absolutely. Thank you very much


Has there been any progress on this yet?

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.