Problem with gtk_notebook_set_current_page()

[Mirco Müller <mirco pool informatik rwth-aachen de>]

Hello everyone!

        I created a GtkNotebook with two pages (one holding a centered GtkLabel, the 
other a GtkGLArea). I disabled the rendering of tabs and borders for this 
GtkNotebook so the user does not notice that there is actually more "than 
meets the eye" :) I want to control the displayed tab of the GtkNotebook from 
within my program.

        This does not work as intended. Only some calls to 
gtk_notebook_set_current_page() work others don't. To cross-check things I 
added keyboard-shortcuts for each tab. With the keyboard I can switch between 
both tabs without any problem.

Furthermore I added some printf()s to the tab-switching like this (case 1):

    if( gtk_notebook_get_current_page( my_notebook ) == 0 )
        gtk_notebook_set_current_page( my_notebook, 1 );
    else
        printf( "loadEffect(): page 1 is already being displayed\n" );

and (case 2):

    if( gtk_notebook_get_current_page( my_notebook ) == 1 )
        gtk_notebook_set_current_page( my_notebook, 0 );
    else
        printf( "loadEffect(): page 0 is already being displayed\n" );

        For some reason the message (either case) gets printed to console although 
the page/tab tested for isn't really displayed at all.

        Is there anything, not stated in the API-reference of GtkNotebook, that gets 
carried out for event-handling (keyboard-events) but not if one only calls 
gtk_notebook_set_current_page() as is?

I am really confused atm.

Thanks in advance for you time and kind advice!

Best regards...

MacSlow