gtk_window_set_decorated(window, FALSE) does not work when called before showing the window

[Brett Simmers]

Binary package hint: libgtk2.0-0

Calling gtk_window_set_decorated(window, FALSE) before showing the window does not seem to be working (the window will still have window decorations). I've attached a small reproduction case with more details in a header comment. Building and running that program on versions of Ubuntu < 10.04 give the expected result of no window decorations on both windows. In Ubuntu 10.04, the window that was shown after the call to gtk_window_set_decorated() will still have decorations.

I'm using Ubuntu 10.04 alpha, up to date as of 14:30PST February 24th. The gtk package version is 2.19.5-1ubuntu6. This is reproducible with both Metacity and Compiz, so it is most likely not a WM issue.

[Brett Simmers (swtaarrs)]

I took a look at the documentation for the function to make sure this behavior wasn't intentional, and it actually recommends calling set_decorated before showing the window, even though that's what triggers the bug:

"Depending on the system, this function may not have any effect when called on a window that is already visible, so you should call it before calling gtk_window_show()."

[Cody Russell (bratsche)]

Thanks Brett. New release of gtk+ will be released on Friday which will include a fix for this.

[Christian Hammond (chipx86)]

Hey guys,

For what it's worth, this totally breaks VMware Workstation and Player in several ways. I'd really hate to see all our products suddenly not work for users upgrading to 10.04 :)

[Christian Hammond (chipx86)]

Perfect, thanks guys :) Guess I posted just slightly too late.

[Cody Russell (bratsche)]

I would hate for that to happen to, because I use VMware Workstation on occasion. :)

[Cody Russell (bratsche)]

Can you confirm that the latest gtk+ release (2.19.6-1ubuntu1) fixes your problem?

[Brett Simmers (swtaarrs)]

Yep, it's working as expected after updating gtk. Thanks!