重绘CheckBox遇到一个问题

2012-11-21 11:43:08 429 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

【请关注】VC++重绘CheckBox，方便直接可以用 VC++重绘CheckBox，方便直接可以用阅读详情

比如有一个CheckBox控件 IDC_CHECK1 .h文件 CMyCheckBox m_check1;

cpp文件响应按钮点击事件比如：
void CXXXDlg::OnCheck1()
{
CButton *p1=(CButton*)GetDlgItem(IDC_CHECK1); //在这里设了一个断点
CButton *p2=(CButton*)GetDlgItem(IDC_CHECK2);
p1->SetCheck(1);
p2->SetCheck(1);
}
这时问题就来了，当我点击CheckBox按钮时，为什么进不去OnCheck1()这个函数呢？

附：我重绘CheckBox的代码是这样

// MyCheckBox.cpp : implementation file

//



/////////////////////////////////////////////////////////////////////////////

// CMyCheckBox message handlers



void CMyCheckBox::PreSubclassWindow() 

{

 	UINT nBS;

 	nBS= GetButtonStyle();

 	SetButtonStyle(nBS| BS_OWNERDRAW);

	CButton::PreSubclassWindow();

}



void CMyCheckBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 

{

	CRect rect =  lpDrawItemStruct->rcItem;

	CDC *pDC=CDC::FromHandle(lpDrawItemStruct->hDC);



	CRect ReRect,TextRect;

//  	CopyRect(ReRect,rect);

//  	ReRect.right=rect.Height();

	ReRect.top=2;

	ReRect.bottom=rect.bottom-2;

	ReRect.left=rect.left=2;

	ReRect.right=ReRect.bottom-ReRect.top;

 	CopyRect(TextRect,rect);

 	TextRect.left=ReRect.right+8;



	CString strText;

	GetWindowText(strText);



	UINT state = lpDrawItemStruct->itemState;

	if (state&ODS_DISABLED|| state & ODS_DEFAULT)

	{

		m_bDisable=TRUE;

	}

	else

	{

		m_bDisable=FALSE;

	}

	

	CBrush m_br;

	m_br.CreateSolidBrush(m_BkColor);

	pDC->FillRect(&rect,&m_br);



	int nCheck=GetCheck();

	if (nCheck)

	{	

		DrawBitmap(pDC,IDB_BITMAP2,ReRect);

	}

	else

	{

		DrawBitmap(pDC,IDB_BITMAP3,ReRect);

	}

	

	CFont font;

	font.CreateFont(m_FontSize,0,0,0,FW_NORMAL,FALSE,FALSE,0,GB2312_CHARSET,OUT_DEFAULT_PRECIS,

		CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,DEFAULT_PITCH|FF_MODERN,m_strFontName);   

	pDC->SelectObject(&font);

	pDC->SetBkMode(TRANSPARENT);

    if (m_bDisable)

    {

		pDC->SetTextColor(RGB(128,128,128));

    }

	else

	{

		pDC->SetTextColor(RGB(0,0,0));

	}

	pDC->DrawText(strText,&TextRect,DT_LEFT|DT_VCENTER|DT_SINGLELINE);

	font.DeleteObject();

	m_br.DeleteObject();

}



void CMyCheckBox::OnClicked() 

{

	int nState;

	nState = GetCheck();

	if(nState == 0)   

		nState = 1;

	else

		nState = 0;

	SetCheck(nState);

}



 LRESULT CMyCheckBox::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) 

 {

 	if (message==BM_SETCHECK)

 	{

 	//	m_nChecked=wParam;

 	//	SetMyCheck(wParam);

 		SetCheck(wParam);SetMyCheck(wParam);

 	}

 	if (message==BM_GETCHECK)

 	{

 	//	return GetCheck();

 		return GetMyCheck();

 //		return m_nChecked;

 	}

 	return CButton::DefWindowProc(message, wParam, lParam);

 }

int CMyCheckBox::GetMyCheck()

{

	if (m_nChecked)

	{

		return 1;

	}

	return 0;

}

void CMyCheckBox::SetMyCheck(int nState)

{

	if (nState)

	{

		m_nChecked=1;

	}

	else

	{

		m_nChecked=0;

	}

	Invalidate();

}

void CMyCheckBox::SetFontBkColor(COLORREF rgb)

{

	m_BkColor=rgb;

}

void CMyCheckBox::SetFontSize(int nSize)

{

	m_FontSize=nSize;

}

void CMyCheckBox::SetFontName(CString strFontName)

{

	m_strFontName=strFontName;

}

void CMyCheckBox::DrawBitmap(CDC *pDC,UINT nID,CRect &rect)

{

	CDC memDC;

	BITMAP bmpInfo;

	CBitmap bmp;

	bmp.LoadBitmap(nID); 

	bmp.GetBitmap(&bmpInfo); 

	memDC.CreateCompatibleDC(pDC);

	CBitmap *pOldBmp=memDC.SelectObject(&bmp); 

 

	pDC->StretchBlt(rect.left,rect.top,rect.right,rect.bottom,

		&memDC,0,0,bmpInfo.bmWidth,bmpInfo.bmHeight,SRCCOPY); 

	pDC->SelectObject(pOldBmp); 

	bmp.DeleteObject(); 

}