Help with GTK+-3.0

[madhater]

Hi All.

I am currently writing a basic text editor using gtk+-3.0 and C language for my Duke of Edinburgh's Silver award.

I have set up eclipse IDE so that it will compile gtk+-3.0 applications. However I get the following error when I compile the code:


Building target: james-edit
Invoking: GCC C Linker
gcc -o"james-edit(eclipse-only)" ./src/main.o `pkg-config --libs --cflags gtk+-3.0`
./src/main.o: In function `func_open_dialog':
/home/james/workspace/james-edit (eclipse-only)/Debug/../src/main.c:151: undefined reference to `open_file'
collect2: ld returned 1 exit status
make: *** [james-edit(eclipse-only)] Error 1

The error is to do with the following function:



void func_open_dialog(void)
{
GtkWidget *open_dialog;
open_dialog = gtk_recent_chooser_dialog_new ("Open",
NULL,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
NULL);

if (gtk_dialog_run (GTK_DIALOG (open_dialog)) == GTK_RESPONSE_ACCEPT)
{
GtkRecentInfo *info;

info = gtk_recent_chooser_get_current_item (GTK_RECENT_CHOOSER (open_dialog));
open_file (gtk_recent_info_get_uri (info));
gtk_recent_info_unref (info);
}

gtk_widget_destroy (open_dialog);

}


Any help would be appreciated. :D At a guess I would say something to do with the linker, am I not including a header file that should be there?


James

[Brandon Williams]

The linker doesn't care about header files. If you didn't include the right header file, then compile should fail before you get to the linker. I suppose it's possible that the compiler used a bad default function prototype in the absence of the header file, but that is not the most likely problem.

The linker can't find the open_file function. Is it the correct function name? And if so, where is the function defined?

[madhater]

I "borrowed" the code of the gnome developer website. I am afraid I don't know where open_file is defined. As far as I know it was not dropped when gtk+ 3 was released.

James

[Brandon Williams]

I see now that you used the example from the GtkFileChooserDialog documentation. I don't think that's meant to be a working example. I think it's only meant to show you how the dialog works and that you are meant to provide the open_file function yourself.