Re: ToolTip Color Extraction

[Neelesh Bodas <neelesh bodas gmail com>]

I worte this query to gtk-app-devel a few days ago. Unfortunately, nobody
has responded as yet. However, I could get the solution myself by debugging
through the Gtk Sources. I am documenting that here so that it will be
useful for others too.
 The GtkTooltips widget has a field called tip_window which contains a
pointer to GtkStyle. This style contains all the color information necessary
for the tooltip. However, if we just do "sampleToolTip->tip_window", we
would get a NULL. What we need to do is to set the tip_window properly
(before we retrieve it) iand for that we need to call the function
"gtk_tooltips_force_window".
 Thus we would write :
  GtkTooltips *sampleToolTip;
GtkStyle * tooltipStyle;
sampleToolTip = gtk_tooltips_new();
// Here we would write a code to associate the tooltip with window etc.
if(!(sampleToolTip->tip_window))
gtk_tooltips_force_window(sampleToolTip);
 tooltipStyle = gtk_rc_get_style(sampleToolTip->tip_window);
 On doing this we would get the color and other information in the
tooltipStyle.
 This helped me and hope this helps to other too.
 Thanks
~Neelesh
 On 10/5/05, Neelesh Bodas <neelesh bodas gmail com> wrote:
> Hi,
>  I see this query posted on this mailing list a multiple times, but non of
> them have been answered. (One of the post is mine itself.)
>  The issue is as follows :
>  1) The Background and Foreground Color of "Gtk Tooltip" is configurable
> through the "GTKRC file".
> 2) What this means is that the Gtk-library/ Gtk-code parses the GtkRC file
> and "fills" some of its internal data structures.
> 3) In this process, it must be reading the color of tooltip from the GtkRC
> file and must be storing somewhere in its internal data structure.
>  Which is that Data structure?
>  In other words, how can a developer, at runtime, get the color of the
> GtkTooltip, using Gtk Data structures?
>  It would be fine even if I get simply the API...but what I am looking for
> is the precise Data structure inside Gtk Sources.
>  My primary guess is that it should be GtkStyle or GtkRcStyle or something
> related to that.
>   Some Gtk-Guru, please, I would be grateful if you could answer this. I
> have been looking at Gtk Sources for a while but donot seem to get anything
> related to this.
>   Thanks in Advance,
> Neelesh