Re: gtkEntry, a virtual keyboard and overwriting problems

[Matt Flax <flatmax mimosaacoustics com>]

For those who are interested, here is the state of the event :
    new_event.key.type = GDK_KEY_PRESS;
    new_event.key.send_event = TRUE;
    new_event.key.time = GDK_CURRENT_TIME;
    new_event.key.state = 0; //GDK_KEY_PRESS_MASK;
    new_event.key.length = 0;
    new_event.key.string = 0;
    new_event.key.hardware_keycode = 0;
    new_event.key.group = 0;


On 13/01/12 10:55, Matt Flax wrote:
> Hi there,
>
> I wanted to implement a virtual keyboard using individual letter 
> buttons and have the string constructed displayed in the gtkEntry widget.
> entry=gtk_entry_new(); // create the entry widget
> GdkEvent new_event; // the gdkevent to put
>
> I used the following approach  when a button was clicked :
>   gtk_widget_grab_focus(entry);
>   new_event.key.window = gtk_widget_get_parent_window(entry);
>   new_event.key.keyval = c[0]; // take only the first letter
>   gdk_event_put(&new_event);
>
> I found that every time I clicked a letter button, such as 'a', the 
> letter 'a' would be displayed in the entry widget - great ! but ....
> If I try to add a second letter, such as 'b', the letter 'a' would be 
> overwritten by 'b'. Not so good ! I need to construct strings in the 
> GtkEntry widget ...
>
> can anyone see what I am doing wrong ?
>
> When I use the same approach with the GtkTextView widget it works OK :
> entry=gtk_text_view_new (); // create the text view widget
>
> The following works correctly - I can create strings:
>   gtk_widget_grab_focus(entry);
>   new_event.key.window = gtk_widget_get_parent_window(entry);
>   new_event.key.keyval = c[0]; // take only the first letter
>   gdk_event_put(&new_event);
>
>
> The problem with this approach is that it is overly complex, I only 
> want the user to input a single line of text and it is harder to 
> extract the string from the GtkTextView widget ...
>
> any pointers ?
> thanks
> Matt
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