doublepend.h

主要介绍vc++6.0的编程过程

// DoublePend.h : Declaration of the CDoublePend

#ifndef __DOUBLEPEND_H_
#define __DOUBLEPEND_H_

#include "resource.h"       // main symbols
#include <atlctl.h>


/////////////////////////////////////////////////////////////////////////////
// CDoublePend
class ATL_NO_VTABLE CDoublePend : 
	public CComObjectRootEx<CComSingleThreadModel>,
	public IDispatchImpl<IDoublePend, &IID_IDoublePend, &LIBID_DOUBLEPENDULUMLib>,
	public CComControl<CDoublePend>,
	public IPersistStreamInitImpl<CDoublePend>,
	public IOleControlImpl<CDoublePend>,
	public IOleObjectImpl<CDoublePend>,
	public IOleInPlaceActiveObjectImpl<CDoublePend>,
	public IViewObjectExImpl<CDoublePend>,
	public IOleInPlaceObjectWindowlessImpl<CDoublePend>,
	public IPersistStorageImpl<CDoublePend>,
	public ISpecifyPropertyPagesImpl<CDoublePend>,
	public IQuickActivateImpl<CDoublePend>,
	public IDataObjectImpl<CDoublePend>,
	public IProvideClassInfo2Impl<&CLSID_DoublePend, NULL, &LIBID_DOUBLEPENDULUMLib>,
	public CComCoClass<CDoublePend, &CLSID_DoublePend>
{
public:
	double m_dLength;
	double x[4], h;

	CDoublePend()
	{

		m_dLength = 100.0;
		x[0] = .7854;
		x[1] = .7854;
		x[2] = x[3] = 0.0;

		h = .1;

	}

	void Function( double *, double * );
	void FillOval( HDC, int, int, int, int, COLORREF );
	void DrawPend( HDC, RECT & );

DECLARE_REGISTRY_RESOURCEID(IDR_DOUBLEPEND)

BEGIN_COM_MAP(CDoublePend)
	COM_INTERFACE_ENTRY(IDoublePend)
	COM_INTERFACE_ENTRY(IDispatch)
	COM_INTERFACE_ENTRY(IViewObjectEx)
	COM_INTERFACE_ENTRY(IViewObject2)
	COM_INTERFACE_ENTRY(IViewObject)
	COM_INTERFACE_ENTRY(IOleInPlaceObjectWindowless)
	COM_INTERFACE_ENTRY(IOleInPlaceObject)
	COM_INTERFACE_ENTRY2(IOleWindow, IOleInPlaceObjectWindowless)
	COM_INTERFACE_ENTRY(IOleInPlaceActiveObject)
	COM_INTERFACE_ENTRY(IOleControl)
	COM_INTERFACE_ENTRY(IOleObject)
	COM_INTERFACE_ENTRY(IPersistStreamInit)
	COM_INTERFACE_ENTRY2(IPersist, IPersistStreamInit)
	COM_INTERFACE_ENTRY(ISpecifyPropertyPages)
	COM_INTERFACE_ENTRY(IQuickActivate)
	COM_INTERFACE_ENTRY(IPersistStorage)
	COM_INTERFACE_ENTRY(IDataObject)
	COM_INTERFACE_ENTRY(IProvideClassInfo)
	COM_INTERFACE_ENTRY(IProvideClassInfo2)
END_COM_MAP()

BEGIN_PROP_MAP(CDoublePend)
	PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
	PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
	// Example entries
	// PROP_ENTRY("Property Description", dispid, clsid)
	// PROP_PAGE(CLSID_StockColorPage)
END_PROP_MAP()

BEGIN_MSG_MAP(CDoublePend)
	CHAIN_MSG_MAP(CComControl<CDoublePend>)
	DEFAULT_REFLECTION_HANDLER()
END_MSG_MAP()
// Handler prototypes:
//  LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
//  LRESULT CommandHandler(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
//  LRESULT NotifyHandler(int idCtrl, LPNMHDR pnmh, BOOL& bHandled);



// IViewObjectEx
	DECLARE_VIEW_STATUS(VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE)

// IDoublePend
public:
	STDMETHOD(Update)();
	STDMETHOD(SetValue)(double dValue);

	HRESULT OnDraw(ATL_DRAWINFO& di)
	{
		RECT& rc = *(RECT*)di.prcBounds;

		DrawPend( di.hdcDraw, rc );

		return S_OK;
	}
};

#endif //__DOUBLEPEND_H_