Bug 14976 - NotifyIcon does not show up
Summary: NotifyIcon does not show up
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 3.2.x
Hardware: PC Linux
: Lowest normal
Target Milestone: Community
Assignee: Bugzilla
Depends on:
Reported: 2013-09-24 23:25 UTC by datnhanlz
Modified: 2017-09-01 11:56 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

Remove the line from sources (1.05 KB, patch)
2015-06-04 15:00 UTC, Arsen.Shnurkov

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Description datnhanlz 2013-09-24 23:25:38 UTC
System.Windows.Forms.NotifyIcon does not show up in the systray (Tested on OS: Fedora, Arch. DE: MATE, Cinnamon)
When I try to fix the problem, I found the following line of code cause the bug:

File: XplatUIX11.cs, method: SystrayAdd, line: 6024
XChangeProperty(DisplayHandle, hwnd.whole_window, _XEMBED_INFO, _XEMBED_INFO, 32, PropertyMode.Replace, atoms, 2);

When I commented out (removed) the line aboved. The icon show up correctly in the systray. Right-click also works as expected. Only minor problem is that the mouse cursor change slightly (I think it change to XServer cursor???)

Because I am a newbie to Linux, hence, I have no knowledge about XServer. I am not sure what that line of code for. I stopped my effort here and report this as a bug in the hope that the experts can fix this faster than me. Personally, I will run my application without that line of code.

(It seems simple, but cost me a lot of time. Trying countless time to compile Mono, MonoDevelop on Fedora to get the latest version of Mono, but always fail. Eventually, I installed Arch Linux to get the newest Mono 3.2.x, and found out the problem still there :D)

Sorry for my English.
Comment 1 Miguel de Icaza [MSFT] 2014-02-12 17:27:06 UTC
Setting priority to lowest, since Windows.Forms is no longer being developed actively.
Comment 2 Arsen.Shnurkov 2015-06-04 15:00:49 UTC
Created attachment 11467 [details]
Remove the line from sources

I have the same behaviour as in this bug (on Calculate Linux/LXDE). Removing that line helps from the first sight. I tested on the sample https://github.com/mono/winforms/blob/master/notifyicon/swf-notifyicon.cs
Comment 3 Timotheus Pokorra 2016-06-27 07:22:39 UTC
possibly duplicate of https://bugzilla.xamarin.com/show_bug.cgi?id=8935

the patch works so far, only on i3 with i3bar extension problems have been reported (https://bugzilla.redhat.com/show_bug.cgi?id=1284609#c14)