How can I read out the "glade ID" of a gtk3 object

Question

In glade it is possible to set an unique ID to an object. In the code one can obtain a pointer to this object by searching for it's "glade ID" via gtk_builder_get_object().

However for my current use-case I just want to read out this ID from an GObject. What's the API to do so ?

score 6 · Accepted Answer · answered Aug 07 '16 at 19:40

6

You can't. The builder ID is stored in the builder internally, not in the GObject.

The reason for this is that IDs must be unique per builder, which would be impossible to enforce if you were able to get and set them via some GObject API.

answered Aug 07 '16 at 19:40

ptomato

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Thanks! .. looks like I need to change my approach to identify my generically created widgets :) – Alex Aug 08 '16 at 18:25
It is possible, see my answer: https://stackoverflow.com/a/64848887/1860309 – Boris Brodski Nov 15 '20 at 19:29

score 3 · Answer 2 · answered Mar 25 '18 at 11:30

3

You could use gtk_widget_get_name() to identify an object.

answered Mar 25 '18 at 11:30

Bachsau

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gtk_widget_get_name() will return widget name ('GtkButton'), not widget id. – user3439968 Jul 12 '19 at 14:51
@user3439968 It returns whatever has been set in Glade. Meant primarily for styling, it is a way one can set an arbitrary name that can be checked for later, even though it is not the ID. – Bachsau Jul 13 '19 at 15:11
You are right. If name not set then return default widget name ('GtkButton'). If set then return what you set. – user3439968 Jul 13 '19 at 20:45

score 2 · Answer 3 · answered Nov 15 '20 at 19:29

It is possible using Gtk.Buildable.get_name(object). This method will return the Glade object id.

This snippet will print all object ids in your Glade XML:

builder = Gtk.Builder()
builder.add_from_file("my-window.glade"))
for obj in builder.get_objects():
    print(Gtk.Buildable.get_name(obj))

score 0 · Answer 4 · answered Nov 19 '22 at 20:36

As stated by @ptomato it's seems not possible.

I found that in that line in the documentation:

All the fields in the GObject structure are private to the implementation and should never be accessed directly.

But you can circumvent it because at one point in your code you were refering to it by the id that you typed in (or the code you wrote type in) so you just need to store it at that point. And link it somehow (with a variable or a data structure) to the name of the variable holding the object.

score 0 · Answer 5 · edited Aug 05 '23 at 12:48

0

I just came across a similar need, get_label() should do for what I want

edited Aug 05 '23 at 12:48

toyota Supra

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answered Aug 05 '23 at 12:12

Nicholas Sans Pasty

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Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Aug 11 '23 at 07:45

How can I read out the "glade ID" of a gtk3 object

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