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Top Forums Shell Programming and Scripting Pop up dialog box on remote computers Post 302144602 by Smiling Dragon on Thursday 8th of November 2007 09:59:11 PM
Old 11-08-2007
If you want to open an x-window on a remote machine uninvited, it's generally non-trivial.

If the users are not using Xauth security (eg MIT magic cookies etc) then it's not _too_ hard to determine the display to send to and fire a window at it.

This 'military software'; does it run with the display name (ie <hostname>:<display number>) in the commandline or do they rely on a $DISPLAY environment variable?
For that matter, does it even use X or is it run within a terminal session via X?

It's totally doable, but there are a lot of factors that will determine how to go about it.

High-level approach:
Produce a list of users to warn (probably from 'ps' or 'who' output)
Identify the X server they are connecting from
Obtain a copy of appropriate authorisation to send something to their X server
Send the message, taking care not to present them with an app that has elevated privilages.
Log the response to the message (if you need to).
 

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chooseColor(3pm)					User Contributed Perl Documentation					  chooseColor(3pm)

NAME
chooseColor - pops up a dialog box for the user to select a color. SYNOPSIS
$color = $widget->chooseColor?(-option=>value, ...)?; DESCRIPTION
The method chooseColor is implemented as a perl wrapper on the core tk "command" tk_chooseColor, and $widget is passed as the argument to the hidden -parent option. The implementation of internal tk_chooseColor is platform specific, on Win32 it is a native dialog, and on UNIX/X11 it is implemented in terms of Tk::ColorEditor. The chooseColor method pops up a dialog box for the user to select a color. The following option-value pairs are possible as command line arguments: -initialcolor=>color Specifies the color to display in the color dialog when it pops up. color must be in a form acceptable to the Tk_GetColor function. -parent=>$widget Makes $widget the logical parent of the color dialog. The color dialog is displayed on top of its parent window. -title=>titleString Specifies a string to display as the title of the dialog box. If this option is not specified, then a default title will be displayed. If the user selects a color, tk_chooseColor will return the name of the color in a form acceptable to Tk_GetColor. If the user cancels the operation, the command will return undef. EXAMPLE
$widget->configure(-fg => $parent->chooseColor(-initialcolor => 'gray', -title => "Choose color")); KEYWORDS
color selection dialog perl v5.14.2 2010-05-29 chooseColor(3pm)
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