Re: Help me about this "drawable" error

["Maher Awamy" <muhri muhri net>]

You need a gtk_widget_realize(plot_area) before you draw on it.

Maher

On Fri, 10 Nov 2000 05:11:23 -0500, Jung-Wuk Hong said:

> Hi
>  
>  I wrote a function to write text on popup window. However it doesn't work
>  correctly.
>  I met the error drawable!=NULL.
>  Please help me about this problem.
>  
>  In main.c, this callback is connected like this "gtk_signal_connect( button1,
>  "clicked", show_property, NULL);
>  
>  Although I could see the button generated in this callback....
>  
>  Thanks
>  
>  J. Hong
>  
>  
>  void show_property()
>  {
>    GtkWidget *property_window;
>    GtkWidget *button;
>    GtkWidget *vbox, *plot_area;
>    GdkFont *font;
>  
>    property_window = gtk_window_new (GTK_WINDOW_POPUP); /* make init image
>  window */
>    plot_area = gtk_drawing_area_new();
>    button = gtk_button_new_with_label("OK");
>  
>    gtk_drawing_area_size( GTK_DRAWING_AREA(plot_area), 300, 200 );
>    vbox = gtk_vbox_new(FALSE, NO_SPACING);
>  
>    gtk_window_set_position (GTK_WINDOW (property_window), GTK_WIN_POS_CENTER);
>  
>    font = gdk_font_load ("-*-helvetica-bold-r-normal-*-14-*-*-*-*-*-*-*");
>  
>    gdk_draw_text(GTK_WIDGET(plot_area)->window, font, 
>                  GTK_WIDGET(plot_area)->style->black_gc, 10,10, "abc",15);
>  
>    gtk_box_pack_start( GTK_BOX(vbox), plot_area, FALSE, FALSE, NO_PADDING );
>    gtk_box_pack_start( GTK_BOX(vbox), button, FALSE, FALSE, NO_PADDING );
>    gtk_container_add( GTK_CONTAINER( property_window ), vbox );
>    gtk_widget_show_all(property_window);
>  }
>  
>  
>  
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>  
>  

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