getOpenFile man page on IRIX

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     tk_getOpenFile(n)		 Tk (4.2)	     tk_getOpenFile(n)

     _________________________________________________________________

     NAME
	  tk_getOpenFile, tk_getSaveFile - pop up a dialog box for the
	  user to select a file to open or save.

     SYNOPSIS
	  tk_getOpenFile ?option value ...?
	  tk_getSaveFile ?option value ...?
     _________________________________________________________________

     DESCRIPTION
	  The procedures tk_getOpenFile and tk_getSaveFile pop up a
	  dialog box for the user to select a file to open or save.
	  The tk_getOpenFile command is usually associated with the
	  Open command in the File menu. Its purpose is for the user
	  to select an existing file only. If the user enters an non-
	  existent file, the dialog box gives the user an error prompt
	  and requires the user to give an alternative selection. If
	  an application allows the user to create new files, it
	  should do so by providing a separate New menu command.

	  The tk_getSaveFile command is usually associated with the
	  Save as command in the File menu. If the user enters a file
	  that already exists, the dialog box prompts the user for
	  confirmation whether the existing file should be overwritten
	  or not.

	  The following option-value pairs are possible as command
	  line arguments to these two commands:

	  -defaultextension extension
	       Specifies a string that will be appended to the
	       filename if the user enters a filename without an
	       extension. The defaut value is the empty string, which
	       means no extension will be appended to the filename in
	       any case. This option is ignored on the Macintosh
	       platform, which does not require extensions to
	       filenames.

	  -filetypes filePatternList
	       If a File types listbox exists in the file dialog on
	       the particular platform, this option gives the
	       filetypes in this listbox. When the user choose a
	       filetype in the listbox, only the files of that type
	       are listed. If this option is unspecified, or if it is
	       set to the empty list, or if the File types listbox is
	       not supported by the particular platform then all files
	       are listed regardless of their types. See the section
	       SPECIFYING FILE PATTERNS below for a discussion on the
	       contents of filePatternList.

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     tk_getOpenFile(n)		 Tk (4.2)	     tk_getOpenFile(n)

	  -initialdir directory
	       Specifies that the files in directory should be
	       displayed when the dialog pops up. If this parameter is
	       not specified, then the files in the current working
	       directory are displayed. If the parameter specifies a
	       relative path, the return value will convert the
	       relative path to an absolute path.  This option may not
	       always work on the Macintosh.  This is not a bug.
	       Rather, the General Controls control panel on the Mac
	       allows the end user to override the application default
	       directory.

	  -initialfile filename
	       Specifies a filename to be displayed in the dialog when
	       it pops up. This option is ignored by the
	       tk_getOpenFile command.

	  -parent window
	       Makes window the logical parent of the file dialog. The
	       file dialog is displayed on top of its parent window.

	  -title titleString
	       Specifies a string to display as the title of the
	       dialog box. If this option is not specified, then a
	       default title is displayed. This option is ignored on
	       the Macintosh platform.

	  If the user selects a file, both tk_getOpenFile and
	  tk_getSaveFile return the full pathname of this file. If the
	  user cancels the operation, both commands return the empty
	  string.

     SPECIFYING FILE PATTERNS
	  The filePatternList value given by the -filetypes option is
	  a list of file patterns. Each file pattern is a list of the
	  form
	       typeName {extension ?extension ...?} ?{macType ?macType ...?}?
	  typeName is the name of the file type described by this file
	  pattern and is the text string that appears in the File
	  types listbox. extension is a file extension for this file
	  pattern.  macType is a four-character Macintosh file type.
	  The list of macTypes is optional and may be omitted for
	  applications that do not need to execute on the Macintosh
	  platform.

	  Several file patterns may have the same typeName, in which
	  case they refer to the same file type and share the same
	  entry in the listbox. When the user selects an entry in the
	  listbox, all the files that match at least one of the file
	  patterns corresponding to that entry are listed. Usually,
	  each file pattern corresponds to a distinct type of file.
	  The use of more than one file patterns for one type of file

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     tk_getOpenFile(n)		 Tk (4.2)	     tk_getOpenFile(n)

	  is necessary on the Macintosh platform only.

	  On the Macintosh platform, a file matches a file pattern if
	  its name matches at least one of the extension(s) AND it
	  belongs to at least one of the macType(s) of the file
	  pattern. For example, the C Source Files file pattern in the
	  sample code matches with files that have a .c extension AND
	  belong to the macType TEXT. To use the OR rule instead, you
	  can use two file patterns, one with the extensions only and
	  the other with the macType only. The GIF Files file type in
	  the sample code matches files that EITHER have a .gif
	  extension OR belong to the macType GIFF.

	  On the Unix and Windows platforms, a file matches a file
	  pattern if its name matches at at least one of the
	  extension(s) of the file pattern. The macTypes are ignored.

     SPECIFYING EXTENSIONS
	  On the Unix and Macintosh platforms, extensions are matched
	  using glob-style pattern matching. On the Windows platforms,
	  extensions are matched by the underlying operating system.
	  The types of possible extensions are: (1) the special
	  extension * matches any file; (2) the special extension ""
	  matches any files that do not have an extension (i.e., the
	  filename contains no full stop character); (3) any character
	  string that does not contain any wild card characters (* and
	  ?).

	  Due to the different pattern matching rules on the various
	  platforms, to ensure portability, wild card characters are
	  not allowed in the extensions, except as in the special
	  extension *. Extensions without a full stop character (e.g,
	  ~) are allowed but may not work on all platforms.

     EXAMPLE
	       set types {
		   {{Text Files}       {.txt}	     }
		   {{TCL Scripts}      {.tcl}	     }
		   {{C Source Files}   {.c}	 TEXT}
		   {{GIF Files}	       {.gif}	     }
		   {{GIF Files}	       {}	 GIFF}
		   {{All Files}	       *	     }
	       }
	       set filename [tk_getOpenFile -filetypes $types]

	       if {$filename != ""} {
		   # Open the file ...
	       }

     KEYWORDS

     Page 3					     (printed 2/26/99)

     tk_getOpenFile(n)		 Tk (4.2)	     tk_getOpenFile(n)

	  file selection dialog

     Page 4					     (printed 2/26/99)

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