ArcGIS Engine Developer Guide

BUILDING APPLICATIONS WITH C++ AND CONTROL WIDGETS
}
void TOCControlEvents::OnMouseUp(long button, long shift, long x, long y)
{
}
void TOCControlEvents::OnMouseMove (long button, long shift, long x, long y)
{
}
void TOCControlEvents::OnDoubleClick (long button, long shift, long x, long y)
{
}
void TOCControlEvents::OnKeyDown (long keyCode, long shift)
{
}
void TOCControlEvents::OnKeyUp (long keyCode, long shift)
{
}
void TOCControlEvents::OnBeginLabelEdit (long x, long y,
VARIANT_BOOL* CanEdit)
{
}
void TOCControlEvents::OnEndLabelEdit (long x, long y, BSTR newLabel,
VARIANT_BOOL* CanEdit)
{
if (CComBSTR("") == newLabel)
*CanEdit = VARIANT_FALSE;
}
4. Now that the events have been implemented, the main application can listen
for them. This is done the same way it was done for the PageLayoutControl’s
events.
a. First include TOCControlEvents.h in MapViewer.h.
#include "PageLayoutControlEvents.h"
#include "TOCControlEvents.h"
b. Declare some global variables for the TOCControl events at the top of
MapViewer.cpp.
IEventListenerHelperPtr g_ipPageLayoutControlEventHelper;
TOCControlEvents* g_tocEvents;
IEventListenerHelperPtr g_ipTOCControlEventHelper;
c. Next place the code to start listening for the TOCControlEvents after that for
the PageLayoutControlEvents in MapViewer.cpp’s main.
g_ipPageLayoutControlEventHelper->AdviseEvents(g_ipPageLayout, NULL);
g_tocEvents = new TOCControlEvents();
g_ipTOCControlEventHelper.CreateInstance(CLSID_TOCControlEventsListener);
Chapter 6 • Developer scenarios • 381