Yep, you're right!
I tried
start.set_label("Stop");
and it's working now.
________________________________
From: Kevin Brightwell <[email protected]>
To: Chris Share <[email protected]>
Cc: gtkmm-list <[email protected]>
Sent: Wednesday, 10 July 2013 1:22 PM
Subject: Re: Beginner Question: Changing the Text of a Button
I'm on my phone, but you're not using the gtkmm bindings, you're trying to mix
C and C++ together.
I think you wanted button.set text() or something similar.
Cheers,
Kevin
On 2013-07-09 11:15 PM, "Chris Share" <[email protected]> wrote:
Hi,
>
>I'm a complete beginner with respect to gtk and gtkmm.
>
>I'd like to add a gtkmm gui to a command line application that I've developed.
>
>As a starting point, I've created a simple demo app with a button. I'd like to
>change the button's text each time it's clicked.
>
>The button is declared in the app's main window as
>
>Gtk::Button start;
>
>
>When it's clicked I'd like to change its text as shown below:
>
>
>void MainWindow::on_play_button_clicked() {
>
> std::cout << "Play" << std::endl;
>
> if(state == 0) {
> gtk_button_set_label(GTK_BUTTON(start), "Stop");
> } else {
> gtk_button_set_label(GTK_BUTTON(start), "Start");
> }
>}
>
>
>What I can't figure out is the actual code to get this to work.
>
>
>When I build the code I get the following error:
>
>
>MainWindow.cpp: In member function ‘void MainWindow::on_play_button_clicked()’:
>MainWindow.cpp:31: error: invalid cast from type ‘Gtk::Button’ to type
>‘GTypeInstance*’
>make: *** [metro] Error 1
>
>
>What am I doing wrong here?
>
>
>Cheers,
>
>
>Chris
>
>
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>
>
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