| **Navigation:**  [[introduction.htm|Language Reference]] > App A - DDE, OLE, and OCX > OCX Library Procedures >====== OCXUNREGISTERPROPCHANGE (un-install prop change callback) ====== | [[ocxunregisterpropedit un install property edit callback .htm|{{btn_prev_n.gif|Previous page}}]][[introduction.htm|{{btn_home_n.gif|Return to chapter overview}}]][[ocxunregistereventproc un install event process callback .htm|{{btn_next_n.gif|Next page}}]] | | || **OCXUNREGISTERPROPCHANGE(** //control// **)** {{blk2blue.jpg|blk2blue.jpg}} | **OCXUNREGISTERPROPCHANGE** | Un-installs a property change callback procedure. | | //Control// | An integer expression containing the field number or field equate label of the OLE control to affect. | **OCXUNREGISTERPROPCHANGE** un-installs a property change callback //procedure// for the //control.// **Example:** **OCXUNREGISTERPROPCHANGE(?OleControl)** **See Also:** [[callback functions.htm|Callback Functions]]