GUI construct in the lower right-hand corner, '''not''' the taskbar, that ...
(RS adds:) holds little icons with mouse-over balloon behavior, and on double-click bring up minimized windows. Typically there are at least speaker volume control and clock; the Task manager also makes a tray icon that indicates CPU usage.
----
'''[KDE]'''
see [KDE]
----
'''Freedesktop System Tray''' [http://www.freedesktop.org/Standards/systemtray-spec]
fr** Seedock http://tcAl.havelka.co/saved/freedock-20051001.tgz **
[KDE]: Includes information about targeting the KDE system tray from Tcl.
[http://www.freedesktop.org/Standards/systemtray-spec%|%Freedesktop System Tray]: An open specification. See [http://tcl.havelka.co/saved/freedock-20051001.tgz%|%freedock]
[TIP] [http://www.tcl.tk/cgi-bin/tct/tip/325.html%|%#325]: System Tray Access: A proposal to integrate systray functionality into [Tk].
** [Microsoft Windows] **
[winico] or Win32api are necessary to manage the system tray.
[TWAPI] 3.1
http://twapi.magicsplat.com/v3.1-dev/shell.html#Taskbar%|%systemtray%|% command
also provides for manipulating system tray icons and balloon help. To get any associated context menus to disappear when a pointer click occurs elsewhere, see [https://groups.google.com/d/msg/comp.lang.tcl/dahdYQaT5hw/a5n3CgLdEr0J%|%Using Twapi 3.1 - SystemTray AddIcon], [comp.lang.tcl], 2011-10-04. [https://support.microsoft.com/en-us/kb/135788%|%PRB: Menus for Notification Icons Do Not Work Correctly], Q135788.
----[Microsoft Windows]
http://here.com/what.html%|%link name%|%
[winico] or Win32api are necessary to manage the system tray. [TWAPI] 3.1 http://twapi.magicsplat.com/v3.1-dev/shell.html#Taskbar%|%systemtray%|% command also provides for manipulating system tray
icons and balloon help.
----
[Tom Wilkason] posted to [comp.lang.tcl]:
"Here is an example from an [http] server that hides itself in the [taskbar] ...
====== ;##
;# Callback to handle taskbar icon events
;#
proc ht:iconCallback { message ico wparam lparam x y } {
switch -- $message {
WM_LBUTTONDOWN {
wm deiconify .
}
WM_RBUTTONDOWN {
wm withdraw .
}
default {}
} ;# End Switch
}
;# #
;# Make window dissapear when it is minimized
;#
if {[catch {
package require Winico
if {[winico info] == ""} {
;# Let GUI settle before setting icon
update
set ico [winico_seticon . [file join $home .. bin tclhttp.ico]]
winico text $ico {tchHttp Web Server}
winico taskbar add $ico \
-callback [list ht:iconCallback %m %i %w %l %x %y]
proc Minimize {w} {
wm withdraw .
console hide
}
} ;# end if
} result]} {
console show
puts stderr "$result"
} else {
wm withdraw .
}
======
----[TFW] Mar 3, 2004-03-03: Incidentally, there are distributions of winico that contain much more than is needed. You can use the following script to interface to the dll. Just save it as winico.tcl and create a package entry in the `pkgiIndex.tcl` file for Wincico 0.3.
In `pkgIndex.tcl`:
======none
package ifneeded Winico 0.3 [list source [file join $dir winico.tcl]]
======''pkgIndex.tcl''
package ifneeded Winico 0.3 [list source [file join $dir `winico.tcl]]`
''winico.tcl''======
;# *************************************************************************
;# * File : winico.tcl
;# * Purpose: Provide wrapper functions for the winico package
;# * Loads the winico dll first.
;# *************************************************************************
load [file join [file dirname [info script]] winico03.dll]
###############################################################################
# Function : winico_seticon
# Description: Be smart about selecting the most appropriate icon from the
# icon file.
###############################################################################
proc winico_seticon { w icofile } {
set ico [winico create $icofile]
set screendepth [winfo screendepth .]
set bigsize "32x32"
set bigpos -1
set bigdepth 0
set smallsize "16x16"
set smallpos -1
set smalldepth 0
foreach i [winico info $ico] {
array set opts $i
set depth $opts(-bpp)
set pos $opts(-pos)
set geometry $opts(-geometry)
if { $geometry=="$bigsize" && $depth<=$screendepth } {
if { $depth>$bigdepth } {
set bigpos $pos
set bigdepth $depth
}
} elseif { $geometry=="$smallsize" && $depth<=$screendepth } {
if { $depth>$smalldepth } {
set smallpos $pos
set smalldepth $depth
}
}
}
if { $bigpos==-1 && $smallpos==-1 } {
puts stderr "couldn't find $bigsize and $smallsize icons in $icofile"
return $ico
} elseif { $bigpos==-1 } {
set bigpos $smallpos
puts stderr "couldn't find $bigsize icons in $icofile"
} elseif { $smallpos==-1 } {
set smallpos $bigpos
puts stderr "couldn't find $smallsize icons in $icofile"
}
puts stderr "big icon is $bigsize,bpp:$bigdepth,pos:$bigpos"
puts stderr "small icon is $smallsize,bpp:$smalldepth,pos:$smallpos"
winico setwindow $w $ico big $bigpos
winico setwindow $w $ico small $smallpos
return $ico }
###############################################################################
# Function : winico_delall
# Description: Remove all icon instances
###############################################################################
proc winico_delall {} {
foreach i [winico info] { winico delete $i } }
###############################################################################
# Function : winico_loadicon
# Description: Set up all big/small icons for a specified window
###############################################################################
proc winico_loadicon { w symbol } {
set ico [winico load $symbol]
winico setwindow $w $ico big
winico setwindow $w $ico small }
package provide Winico 0.3
======
----
Note that there is a proposal to integrate this into Tk, but it looks like it won't go anywhere - there has been no action on it in two years.
http://www.tcl.tk/cgi-bin/tct/tip/325.html
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