Sets filename as the current filename for the file chooser, by changing
to the file's parent folder and actually selecting the file in list. If
the chooser is in GTK_FILE_CHOOSER_ACTION_SAVE mode, the file's base name
will also appear in the dialog's file name entry.
If the file name isn't in the current folder of chooser, then the current
folder of chooser will be changed to the folder containing filename. This
is equivalent to a sequence of gtk_file_chooser_unselect_all() followed by
gtk_file_chooser_select_filename().
Note that the file must exist, or nothing will be done except
for the directory change.
If you are implementing a File/Save As... dialog,
you should use this function if you already have a file name to which the
user may save; for example, when the user opens an existing file and then
does File/Save As... on it. If you don't have
a file name already — for example, if the user just created a new
file and is saving it for the first time, do not call this function.
Since 2.4
Sets filename as the current filename for the file chooser, by changing to the file's parent folder and actually selecting the file in list. If the chooser is in GTK_FILE_CHOOSER_ACTION_SAVE mode, the file's base name will also appear in the dialog's file name entry. If the file name isn't in the current folder of chooser, then the current folder of chooser will be changed to the folder containing filename. This is equivalent to a sequence of gtk_file_chooser_unselect_all() followed by gtk_file_chooser_select_filename(). Note that the file must exist, or nothing will be done except for the directory change. If you are implementing a File/Save As... dialog, you should use this function if you already have a file name to which the user may save; for example, when the user opens an existing file and then does File/Save As... on it. If you don't have a file name already — for example, if the user just created a new file and is saving it for the first time, do not call this function. Since 2.4