CN BEGINEDIT

The container control sends the WM_CONTROL (in Container Controls) message with the CN_BEGINEDIT notification code to its owner whenever container text is about to be edited.

Syntax

param1
     USHORT        id            /*  Container control ID. */
     USHORT        CN_BEGINEDIT  /*  Notification code. */

param2
     PCNREDITDATA  pCnrEditData  /*  Pointer to the CNREDITDATA structure. */

Parameters

id (USHORT)

Container control ID.

CN_BEGINEDIT (USHORT)

Notification code.

pCnrEditData (PCNREDITDATA)

Pointer to the CNREDITDATA structure.

Returns

ulReserved (ULONG)

Reserved value, should be 0.

Remarks

The CN_BEGINEDIT notification code is sent when direct editing of container text begins.

Warning: Once your application receives the CN_BEGINEDIT notification code, it must not send any messages to the container until it receives the CN_ENDEDIT notification code, which indicates that direct editing of container text has ended. If any messages are sent to the container before your application receives the CN_ENDEDIT notification code, the results of direct editing are unpredictable.

Default Processing

The default window procedure does not expect to receive this notification code and therefore takes no action on it other than to return 0.