fullextent.cpp

在vc环境下

#include "StdAfx.h"
#include ".\fullextent.h"


/////////////////////////////////////////////////////////////////////////////
// CFullExtent
STDMETHODIMP CFullExtent::OnClick()
{

	IActiveViewPtr cpActiveView;
	GetFocusMapActiveView(&cpActiveView);

	if (cpActiveView==0) return S_OK;

	IEnvelopePtr cpEnv;
	HRESULT hr = cpActiveView->get_FullExtent(&cpEnv);
	if (FAILED(hr)) return hr;

	hr = cpActiveView->put_Extent(cpEnv);
	if (FAILED(hr)) return hr;

	hr = cpActiveView->Refresh();
	if (FAILED(hr)) return hr;

	return S_OK;
}