Difference between revisions of "Application Icon"

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Revision as of 18:27, 24 November 2013

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The application icon is usually displayed on the main window of the application, and it can be controlled by setting Application.Icon

To change the icon of the executable itself, it is necessary to employ a platform-dependent technique. In Lazarus 0.9.27 support for this was added to the Project Options dialog, but it currently doesn't work for Linux because it requires calling an application to set the icon.

IDE support for the Application Icon

Just set the icon in the Project Options dialog, accessible in the Project menu.

Works for Windows and Mac OS X.

Platform-specific techniques

Windows

1. Create a new file named "project.rc" (for example) containing:

  MAINICON ICON "editor.ico" 

2. Include in you project *.lpr file the following instruction:

  {$R project.rc} 

Work with version 0.9.24 and above.

3. In the article Windows Icon you can see the best practices for creating the icon.

Setting the Application Icon on Mac OS X

Under Mac OS X it is necessary to set an icon for the Application Bundle. This is done by adding a field to the Info.plist file, like this:

  <key>CFBundleIconFile</key>
  <string>iconfile.icns</string>

Where iconfile.icns is located inside MyBundle.app/Contents/Resources

You can find instructions to create an icns file here

Linux

Under Linux application icons are located in special directories which are different on each Window Manager. The structure inside that directory, however, is standarized and described on the Icon Theme Specification

K Desktop Environment (KDE)

You can find the directory for application icons for use by all users and for each user using the command:

kde-config --path icon

This should print a list of colon-separated paths to stdout.

GNOME

You can find the directory for application icons for use by all users and for each user using the command:

gnome-config --datadir

This should print a path to stdout, inside which is found a directory called pixmaps that attends to the Icon Theme Specification.