There is only one file type that uses the .KDEVDLG extension:
KDevelop Dialog Box File
Contains text strings used for KDevelop dialog boxes; may be referenced by KDevelop programming projects; can be edited with KDevelop's Dialogeditor or converted to a .UI file using the kdevdlg2ui script.
|Free Software Foundation KDevelop|
Updated: December 30, 2008