[MFC] 버튼에서 WM_MOUSEMOVE 이벤트 처리하기

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#pragma once

class CMyBtn : public CButton
{
DECLARE_DYNAMIC(CMyBtn)

public:
CMyBtn();
virtual ~CMyBtn();

protected:
DECLARE_MESSAGE_MAP()

public:
afx_msg void OnMouseMove(UINT nFlags, CPoint point);
};
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// MyBtn.cpp : 구현 파일입니다.
//

#include "stdafx.h"
#include "My.h"
#include "MyBtn.h"

IMPLEMENT_DYNAMIC(CMyBtn, CButton)

CMyBtn::CMyBtn()
{

}

CMyBtn::~CMyBtn()
{
}

BEGIN_MESSAGE_MAP(CMyBtn, CButton)
ON_WM_MOUSEMOVE()
END_MESSAGE_MAP()

void CMyBtn::OnMouseMove(UINT nFlags, CPoint point)
{
CDC* pDC;
CWnd* pParent;
pParent = GetParent();

pDC = pParent->GetDC(); // <---- 부모윈도우, 즉 CChildView를 화면출력 기준으로 삼는다.

CString strPos;
strPos.Format(L"%04d %04d", point.x, point.y);

pDC->TextOutW(0, 0, strPos);

pParent->ReleaseDC(pDC);

CButton::OnMouseMove(nFlags, point);
}
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// ChildView.h : CChildView 클래스의 인터페이스
//

#pragma once

// CChildView 창
class CMyBtn;

class CChildView : public CWnd
{
// 생성입니다.
public:
CChildView();

// 특성입니다.
public:
CMyBtn* m_pBtn;

// 작업입니다.
public:

// 재정의입니다.
protected:
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);

// 구현입니다.
public:
virtual ~CChildView();

// 생성된 메시지 맵 함수
protected:
afx_msg void OnPaint();
DECLARE_MESSAGE_MAP()
public:
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
};
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// ChildView.cpp : CChildView 클래스의 구현

//

#include "stdafx.h"

#include "My.h"

#include "ChildView.h"

#include "MyBtn.h"

// CChildView

CChildView::CChildView()

{

}

CChildView::~CChildView()

{

}

BEGIN_MESSAGE_MAP(CChildView, CWnd)

ON_WM_PAINT()

ON_WM_CREATE()

END_MESSAGE_MAP()

// CChildView 메시지 처리기

BOOL CChildView::PreCreateWindow(CREATESTRUCT& cs) 

{

if (!CWnd::PreCreateWindow(cs))

return FALSE;

cs.dwExStyle |= WS_EX_CLIENTEDGE;

cs.style &= ~WS_BORDER;

cs.lpszClass = AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW|CS_DBLCLKS, 

::LoadCursor(NULL, IDC_ARROW), reinterpret_cast<HBRUSH>(COLOR_WINDOW+1), NULL);

return TRUE;

}

void CChildView::OnPaint() 

{

CPaintDC dc(this); // 그리기를 위한 디바이스 컨텍스트입니다.

// TODO: 여기에 메시지 처리기 코드를 추가합니다.

// 그리기 메시지에 대해서는 CWnd::OnPaint()를 호출하지 마십시오.

}

int CChildView::OnCreate(LPCREATESTRUCT lpCreateStruct)

{

if (CWnd::OnCreate(lpCreateStruct) == -1)

return -1;

m_pBtn = new CMyBtn();

m_pBtn->Create(L"CMyBtn", WS_VISIBLE | WS_CHILD | BS_PUSHBUTTON,

CRect(100, 0, 200, 200), this, 999);

return 0;

}

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