isAvailable(): Boolean;
The isAvailable method of the FileFolder class returns true if the file folder exists.
The following example shows the use of the isAvailable method.
vars
diskFolderObj : FileFolder;
begin
create diskFolderObj transient;
diskFolderObj.fileName := "E:\";
if diskFolderObj.isAvailable() then
write true;
else
write false;
endif;
end;