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Launching a custom Windows app when double-clicking a file
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Joined: 08 Feb 2005
Posts: 601
Location: Almeria, Spain

PostPosted: Wed Feb 28, 2018 6:53 pm    Post subject: Launching a custom Windows app when double-clicking a file Reply with quote

Since the demise of qtiplot as a free project for versions >, and since good old v0.9.8.9 depends on qt4 and other deprecated packages, it occurred to me to replace my portage-installed instance with the same Windows version (, and then run it through wine (crossover). So, I downloaded the latest Windows free version and installed in ~/Programas/qtiplot- The installation is just a matter of uncompressing a folder (I had previously installed the required python-2.7.x for Windows in the desired bottle). Then, you launch qtiplot.exe in KDE by right-clicking it and selecting "open with wine".

However, my goal was to be able to simply double-click a .qti file (the file type this program creates) in KDE so that qtiplot.exe launched automatically and loaded the file.
I'd like to share with you how I got it to work:

1) I re-created the qti mime type:
user@box ~/.local/share/applications $ cat x-qtiplot.xml
<?xml version="1.0" encoding="utf-8"?>
<mime-type xmlns="" type="application/x-qtiplot">
  <!--Created automatically by update-mime-database. DO NOT EDIT!-->
  <comment>QtiPlot document</comment>
  <comment xml:lang="es">documento de QtiPlot</comment>
  <sub-class-of type="text/plain"/>
  <generic-icon name="x-office-document"/>
  <glob pattern="*.qti"/>
  <glob pattern="*.qti.gz"/>

2) I created a working launch-script for qtiplot.exe in its same folder (chmod it with a+x):
user@box ~/Programas/qtiplot- $ cat qtiplot.script
exec "/opt/cxoffice/bin/wine" --bottle "Microsoft Office 2007" --check --wait-children --start "Y:\Programas\qtiplot-\qtiplot.exe" "$@"

3) I re-created a .desktop file for the Windows program:
user@box ~/.local/share/applications $ cat qtiplot-qtiplot.desktop
[Desktop Entry]
Name=QtiPlot Scientific Plotting
Comment=Qt based clone of the Origin plotting package
Exec="/home/user/Programas/qtiplot-" %u
Icon="/home/user/Config/iconos KDE/qtiplot.png"

The Windows version works like a charm so far and is a perfect replacement for me: I have tried non-linear fitting, exporting a plot as SVG or PNG with transparent backgrounds, selecting gentoo-installed fonts for plots...

Hope this info helps.
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