| **Navigation:**  [[introduction.htm|Language Reference]] > App A - DDE, OLE, and OCX > OCX Library Procedures >====== OCXUNREGISTEREVENTPROC (un-install event process callback) ====== | [[ocxunregisterpropchange  un install prop change callback .htm|{{btn_prev_n.gif|Previous page}}]][[introduction.htm|{{btn_home_n.gif|Return to chapter overview}}]][[ocxgetparamcount  return number of parameters for current event .htm|{{btn_next_n.gif|Next page}}]] |
|  ||

**OCXUNREGISTEREVENTPROC(** //control// **)**

| **OCXUNREGISTEREVENTPROC** | Un-installs an OCX event callback procedure. |
| //control// | An integer expression containing the field number or field equate label of the OLE control to affect. |

**OCXUNREGISTEREVENTPROC** un-installs an OCX event callback //procedure// for the //control.//

**Example:**

**OCXUNREGISTEREVENTPROC(?OleControl)**

**See Also:**

[[callback functions.htm|Callback Functions]]