//main.cpp:
//-----------
// Look at this modified code and pay attention to the order of
execution and call th the functions
#include <gtkmm.h>
#include <iostream>
using namespace std;
int main(int argc, char* argv[])
{
Gtk::Main kit(argc, argv);
Gtk::Window window;
Gtk::TextView textview;
Gtk::Label label;
string mylabeltext = "This is the first line of text in my gui
window.\n";
window.set_default_size(600, 360);
window.set_title("Gtkmm Programming - C++");
window.set_position(Gtk::WIN_POS_CENTER);
label.show();
window.add(label);
label.set_text(mylabeltext);
mylabeltext += "About to run some routines...\n";
label.set_text(mylabeltext);
cout << "An initial line has been set to the gui window." <<
endl;
// The Gui Window is displayed
//==> YOURS Gtk::Main::run(window);
// Now my main program has performed some functions and wants to
update
// the console and the gui window.
cout << "Continuing after various functions and processing..." <<
endl;
//A MODIFICATION HERE '+=' instead of yours '=''
mylabeltext += "Showing the results of the functions and
processing.";
label.set_text(mylabeltext);
// AND NOW
Gtk::Main::run(window);
return 0;
}
//----------------------------------------------
//code end
/////////////// Makefile ///////////////////
#Begin of Makefile
all:
@echo " "
@echo " 1- Compiling..."
g++ -Wall -g -c *.cpp `pkg-config gtkmm-3.0 --cflags`
@echo " "
@echo " 2- Linking..."
g++ -Wall -g *.o `pkg-config gtkmm-3.0 --libs` -o
Gtkmm34-popup-menu-test
@echo " "
@echo " DONE!!!";
# @echo " "
chmod +x Gtkmm34-popup-menu-test
ls . -all
clean:
rm *.o Gtkmm34-popup-menu-test
/////////////// Makefile ///////////////////
#End of Makefile
On Tue, 2013-07-30 at 12:02 -0400, L. D. James wrote:
> Can someone help to clear up the confusion of how to update a gui window
> without user input.
>
> In other words, I would like to be able to output text to either or both
> the console our the gui window.
>
> At present I can call the gui window (Window with a label for example)
> and output the initial text. However, the process doesn't return to my
> c++ code until the window closes. I'm trying to figure out how to (or
> where to have my code) for updating the gui screen before the gui window
> exits.
>
> This is an example:
>
> main.cpp:
> -----------
> #include <gtkmm.h>
> #include <iostream>
>
> using namespace std;
>
> int main(int argc, char* argv[])
> {
> Gtk::Main kit(argc, argv);
>
> Gtk::Window window;
> Gtk::TextView textview;
> Gtk::Label label;
>
> string mylabeltext = "This is the first line of text in my gui
> window.\n";
>
> window.set_default_size(600, 360);
> window.set_title("Gtkmm Programming - C++");
> window.set_position(Gtk::WIN_POS_CENTER);
>
> label.show();
> window.add(label);
>
> label.set_text(mylabeltext);
>
> mylabeltext += "About to run some routines...\n";
>
> label.set_text(mylabeltext);
>
> cout << "An initial line has been set to the gui window." << endl;
> // The Gui Window is displayed
> Gtk::Main::run(window);
> // Now my main program has performed some functions and wants to
> update
> // the console and the gui window.
> cout << "Continuing after various functions and processing..." <<
> endl;
> mylabeltext = "Showing the results of the functions and processing.";
> label.set_text(mylabeltext);
>
> return 0;
> }
> ----------------------------------------------
> code end
>
> The last line of text is never printed to the console until the gui is
> exited. The last line of the mylabeltext is never printed to the label
> window.
>
> What I'm trying to describe is how to keep the gtkmm window active while
> I run other routines in my c++ code and update the output to both the
> console and the gui window without closing the gui window to continue
> the c++ routines.
>
> All the examples that I can find uses a button in the code. I have
> tested and experimented enough that I can update the gui screen after a
> button is pressed. However, I don't want to have to rely on the user
> for screen updates. I hope to be able to run disc scans and other
> functions and periodically update the screen so that the user can see
> the progress and know that the program is still working and not dead.
>
> Some of the resources that I have studied in my attempts at
> understanding this include:
>
> https://developer.gnome.org/
> https://developer.gnome.org/gtkmm-tutorial/3.2/gtkmm-tutorial.html
> http://en.wikipedia.org/wiki/Gtkmm
>
> -- L. James
>
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