[in] Event handler function address.
This function must be declared as HNFN_DELETEITEMS.
Param
[in] Event handler parameter. This parameter is sent to the event handler each time it is called.
Return values:
If the function succeeds the return value will be the value of the pfOnDelete parameter.
Description:
Use QueSetOnDelete to set the address and the parameter value for the OnDelete
event handler. This event handler is called during QueFreeItems function execution.