getopenfilename

nil getopenfilename ( string title , string filter , string defaultDirectory , string category , [ string currentfile ] )

Open a file selector for reading, returns the path to the selected file or nil if none

Arguments:

• title the title of the file selector
• filter the file filter
• defaultDirectory the default directory if no category can be matched
• category the category of file to select
• currentfile the initial location of the file to load, to open the file dialog at this location

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