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 Post subject: The best of both worlds; CUI and GUI
PostPosted: Sun Feb 17, 2008 1:12 am 
Familiar Face

Joined: Mon Aug 27, 2007 10:43 pm
Posts: 14
Ok I have a question about GTK and how it handles GUI and CUI. Basically I started using Visual C++ and thought that it was causing the problem (and i'm sure I had everything set right, I even tried xaos5's vsprops files too). Turns out that wasn't the problem, I ran into the same thing with GCC command line and Dev-CPP.

The problem is how do you output to the console while not having the command prompt open with a window. I want no console window open with my window, but I want the program to be able to output to the console if it was called from there. I have the following;

#include <gtk/gtk.h>
#include <glib.h>

int main ( int argc, char* argv[] ) {
  GtkWidget *dialog = NULL;
  g_print("Hello Console!");

  gtk_init (&argc, &argv);
  dialog = gtk_message_dialog_new (GTK_WINDOW(NULL),
                                   "Hello Window!");
  gtk_dialog_run (GTK_DIALOG (dialog));
  g_signal_connect_swapped (dialog, "response",
                            G_CALLBACK (gtk_widget_destroy),
  gtk_widget_destroy (dialog);

  return 0;

(I tried replacing g_print with printf from stdio.h, but no luck either)

if I compile without -mwindows it opens a command prompt window and outputs "Hello Console!" then "Hello Window!" in a messagebox as expected, but if opened with double click (i.e. not from the command prompt) it will open a command prompt with it. Now if I do it with -mwindows it will eliminate the command prompt, but douse my ability to output to stdout via g_print or any other method.

It is very import that I have GUI and CUI, as most linux programs do, I believe that power lies in mostly CUI with mapping to the CUI using GUI. I have a full featured set of command line options with GOption and am not willing to choose either GUI or CUI or have a command prompt open with the GUI if not opened from the command line.

I also would not like to have to use hacks to close the CUI on load. I know this has to be a common problem, like in -mwindows the STDOUT get's re-routed or something.

Any help will be very much appriciated,
--Alex (

 Post subject:
PostPosted: Sun Feb 17, 2008 1:54 am 
Familiar Face

Joined: Mon Aug 27, 2007 10:43 pm
Posts: 14
Man this sucks I've studied some of the gimp and test programs with the GTK environment and it seems the best way they've figured out is to make a console and GUI one separately, and newbie windows users will just use myprog.exe and people who like CUI will use myprog-console.exe. This flusters me greatly as in Linux you see things like **ERROR** when closing apps opened from the command line, but if you just double click em you never see the messages.

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