LContainer::ContainerCallBack

LContainer::ContainerCallback

#include "Ltwrappr.h"

virtual L_INT LContainer::ContainerCallback (nEventType, pEventData)

CONTAINEREVENTTYPE nEventType;	/* container event type */
L_VOID *pEventData;	/* pointer to event specific data */

Handles each event that occurs in the container.

Parameter	Description
nEventType	The type of the event sent by the container. Possible value is:
	Value	Meaning
	CONTAINER_EVENT_TYPE_DRAW	The container is now drawing.
pEventData	Pointer to a structure that contains data associated with the event specified in nEventType. When nEventType is CONTAINER_EVENT_TYPE_DRAW, then the pEventData must be type pCONTAINEROBJECTDATA. Keep in mind that this is a void pointer, which must be cast to the appropriate data type for the event data.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Required DLLs and Libraries

LTCON

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions:

LContainer::EnableContainerCallback

Example

class LuserCon :public LContainer
{
protected: 
virtual L_INT ContainerCallBack(CONTAINEREVENTTYPE nEvenType,L_VOID *pEventData); 
};
L_INT LContainer_ContainerCallbackExample( LContainer &lCont ) 
{
   L_INT nRet;
   nRet = lCont.IsValid ( );
   if ( nRet == SUCCESS ) /* check the validity of container handle */
   {
      /* Enables the container Callback */
      lCont.EnableContainerCallBack ( TRUE ) ; 
   }
   else
   {
      return nRet ;
   }
   return SUCCESS ; 
}
L_INT   LuserCon::ContainerCallBack(CONTAINEREVENTTYPE nEvenType,L_VOID *pEventData ) 
{
   UNREFERENCED_PARAMETER(nEvenType);
   UNREFERENCED_PARAMETER(pEventData);
   //user write his code here. 
   return SUCCESS; 
}