Igor Pro 7 must convert from the old encodings to Unicode when opening old files. Older versions of Igor used non-Unicode text encodings such as MacRoman, Windows-1252 and Shift-JIS. There is a compatibility issue related to the Symbol Font.
#Igor pro 7 add column code
Programmers migrating Igor 6 procedure code to Igor 7 should read Text Encoding Programming Issues. See Behavior Changes in Igor Pro 7 for details. These changes may affect some existing Igor experiments. Some behaviors have changed slightly in Igor Pro 7. See Features Removed From Igor Pro 7 Below. Some obsolete features of earlier versions of Igor Pro are no longer supported.
Just in case you need to go back to an earlier version of Igor, it is a good idea to make backup copies of your Igor files before opening them with Igor 7. Once you use features added in Igor Pro 7 and save an experiment file, that file may cause errors if you try to read it in an earlier version of Igor. If you don't use features new in Igor Pro 7, then experiment files that it writes are readable by earlier versions. Igor Pro 7 can read files created by all earlier versions of Igor. Older versions of Igor used non-Unicode encodings such as MacRoman, Windows-1252 and Shift-JIS. For more on Qt, see Igor Pro 7 uses Unicode internally. Qt is a cross-platform application framework. Igor Pro 7 is based on the Qt toolkit and can render graphics using either Qt or platform native graphics. See Guide to Igor Pro 7 Improvements for a more detailed list of new Igor Pro 7 features. Wide-Angle Neutron Spin Echo Spectroscopy.
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