Tray icon

[Martin Schreiber]

Hi,
An old unanswered question, I also posted to xfce4-dev where it also is 
unanswered:
 
On Wednesday 04 January 2017 12:32:17 Martin Schreiber wrote:
> Hi,
>
> I try to fix TTrayWidget of MSEide+MSEgui
> https://sourceforge.net/projects/mseide-msegui/
> for Xfce 4.10 on 32 bit openSUSE 13.2.
> MSEgui uses the "system_tray_request_dock" protocol. The original size of
> the widget is 50x50. After dock it will be reparented and correctly resized
> to 22x22, it is not visible probably because of negative position.
> xwininfo shows:
> "
> xwininfo: Window id: 0x3a0001d "abcdefg"
>
>   Root window id: 0x16d (the root window) (has no name)
>   Parent window id: 0x320096a (has no name)
>      0 children.
>
>   Absolute upper-left X:  -8433
>   Absolute upper-left Y:  -8943
>   Relative upper-left X:  0
>   Relative upper-left Y:  0
>   Width: 22
>   Height: 22
>
> xwininfo: Window id: 0x320096a (has no name)
>
>   Root window id: 0x16d (the root window) (has no name)
>   Parent window id: 0x320004c "wrapper"
>      1 child:
>      0x3a0001d "abcdefg": ("test3" "test3")  22x22+0+0  +-8433+-8943
>
>   Absolute upper-left X:  -8433
>   Absolute upper-left Y:  -8943
>   Relative upper-left X:  -9999
>   Relative upper-left Y:  -9999
>   Width: 22
>   Height: 22
>
> xwininfo: Window id: 0x320004c "wrapper"
>
>   Root window id: 0x16d (the root window) (has no name)
>   Parent window id: 0x1c0006c (has no name)
>      6 children:
>      0x320096a (has no name): ()  22x22+-9999+-9999  +-8433+-8943
>      0x320011f (has no name): ()  22x22+25+1  +1591+1057
>      0x32000d0 (has no name): ()  22x22+73+1  +1639+1057
>      0x320007c (has no name): ()  22x22+49+1  +1615+1057
>      0x320007a (has no name): ()  22x22+1+1  +1567+1057
>      0x320004d (has no name): ()  1x1+-1+-1  +1565+1055
>
>   Absolute upper-left X:  1566
>   Absolute upper-left Y:  1056
>   Relative upper-left X:  0
>   Relative upper-left Y:  0
>   Width: 96
>   Height: 24
>
> xwininfo: Window id: 0x1c0006c (has no name)
>
>   Root window id: 0x16d (the root window) (has no name)
>   Parent window id: 0x1c0004c "xfce4-panel"
>      1 child:
>      0x320004c "wrapper": ("wrapper" "Wrapper")  96x24+0+0  +1566+1056
>
>   Absolute upper-left X:  1566
>   Absolute upper-left Y:  1056
>   Relative upper-left X:  1566
>   Relative upper-left Y:  1
>   Width: 96
>   Height: 24
>
> xwininfo: Window id: 0x1c0004c "xfce4-panel"
>
>   Root window id: 0x16d (the root window) (has no name)
>   Parent window id: 0x16003be (has no name)
>      5 children:
>      0x1c0006e (has no name): ()  113x24+1807+1  +1807+1056
>      0x1c0006c (has no name): ()  96x24+1566+1  +1566+1056
>      0x1c0006b (has no name): ()  27x24+1531+1  +1531+1056
>      0x1c0006a (has no name): ()  26x24+1505+1  +1505+1056
>      0x1c0004d (has no name): ()  1x1+-1+-1  +-1+1054
>
>   Absolute upper-left X:  0
>   Absolute upper-left Y:  1055
>   Relative upper-left X:  0
>   Relative upper-left Y:  0
>   Width: 1920
>   Height: 25
> "
>
> What could be wrong?
>
> A second question, does Xfce support balloon messages
> https://specifications.freedesktop.org/systemtray-spec/0.1/ar01s07.html
> ?
>
> Thanks, Martin

I got a tip that it works if one sets xsetwmnormalhints() min_width, 
max_width, min_height and max_height to 16.
Further tests showed that actually min_width or min_height must be > 1 in 
order to show the tray icon. Is this intended?

Also again the question:
does Xfce support balloon messages
https://specifications.freedesktop.org/systemtray-spec/0.1/ar01s07.html
?

Thanks, Martin