Header window

This window lists all the header information.

To edit a keyword entry, single click that keyword using the left mouse button. The entry will be copied into an entry box at the bottom of the window. Make your modifications there and then press <Return> to make the changes.

After selecting a keyword, the right mouse button (Control-Click on MacOS) will bring up a menu for editing. You can insert a new keyword in front of the selected keyword or delete it. An Undo function is also available. These functions are also listed in the Edit menu.

If the highlight for a keyword is brown, you have selected a mandatory keyword and can only edit its comment. You also cannot insert a new keyword within the initial set of mandatory keywords. This keyword protection can be deactivated from the Preferences window. Warning: modifying mandatory keywords can corrupt your FITS file and may cause fv to crash.

The "Search for" entry box allows you to search for strings in the header. Type the string in the entry box and click "Find". Click the "Case sensitive" button to toggle between case sensitive and case insensitive searching mode.

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