How can I identify which of two subclassed controls the mouse is over?

[Mike Pliam]

I have a dialog app with two separate static controls. Both controls have been subclassed from CStatic derived class to implement drag and drop and double clicking. The class works just fine, but I cannot figure out which of the controls is being double clicked or dragged and dropped onto because I only have the code below operating. I need some method in the derived class to determine which control is being manipulated.

// header file
#pragma once

#ifndef __AFXWIN_H__
	#error "include 'stdafx.h' before including this file for PCH"
#endif

#include "resource.h"		// main symbols


// CMyStaticDragApp:
// See MyStaticDrag.cpp for the implementation of this class
//

class CMyStaticDragApp : public CWinApp
{
public:
	CMyStaticDragApp();

// Overrides
public:
	virtual BOOL InitInstance();

// Implementation

	DECLARE_MESSAGE_MAP()
};

extern CMyStaticDragApp theApp;

// implementation file
#include "stdafx.h"

#include "StaticDragDrop.h"


// CStaticDragDrop

IMPLEMENT_DYNAMIC(CStaticDragDrop, CStatic)

CStaticDragDrop::CStaticDragDrop()
{

}

CStaticDragDrop::~CStaticDragDrop()
{
}


BEGIN_MESSAGE_MAP(CStaticDragDrop, CStatic)
	ON_WM_LBUTTONDBLCLK()
	ON_WM_RBUTTONDBLCLK()
	ON_WM_DROPFILES()
	ON_WM_CREATE()
END_MESSAGE_MAP()



// CStaticDragDrop message handlers




void CStaticDragDrop::OnLButtonDblClk(UINT nFlags, CPoint point)
{
	MessageBox(_T("You left button double clicked on me"), _T("Left Button Double Click"), MB_ICONINFORMATION);

	CStatic::OnLButtonDblClk(nFlags, point);

}// OnLButtonDblClk(UINT nFlags, CPoint point)


void CStaticDragDrop::OnRButtonDblClk(UINT nFlags, CPoint point)
{
	MessageBox(_T("You right button double clicked on me"), _T("Right Button Double Click"), MB_ICONINFORMATION);

	CStatic::OnRButtonDblClk(nFlags, point);

}// OnRButtonDblClk(UINT nFlags, CPoint point)


void CStaticDragDrop::OnDropFiles(HDROP hDropInfo)
{
	TRACE0("*********** OnDropFiles ************************\n");
	UINT i = 0;
	UINT nFiles = ::DragQueryFile(hDropInfo, (UINT) -1, NULL, 0);
	for (i = 0; i < nFiles; i++)
	{
		TCHAR szFileName[_MAX_PATH];
		::DragQueryFile(hDropInfo, i, szFileName, _MAX_PATH);

		//ProcessMyFile(szFileName);
		TRACE1("%s\n", szFileName);

	}

	::DragFinish(hDropInfo);
	//CFrameWnd::OnDropFiles(hDropInfo);

	CStatic::OnDropFiles(hDropInfo);
}


int CStaticDragDrop::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CStatic::OnCreate(lpCreateStruct) == -1)
		return -1;

	// TODO:  Add your specialized creation code here
	this->DragAcceptFiles(TRUE);

	return 0;
}

You're welcome to tell me how stupid I am and that I should know better. That's OK. But please help. Thanks : )