cstatic控件的transparent属性设为真怎么不起作用？

Question

???

Answer 1

也许它里面的OnPaint根本没有处理之，呵呵，要使用透明的CStatic，我给你一个类!

Answer 2

/*===========================================================================
====                                                                     ====
====    File name           :  StaticTrans.h                             ====
====    Creation date       :  7/10/2001                                 ====
====    Author(s)           :  Dany Cantin                               ====
====                                                                     ====
===========================================================================*/#ifndef STATICTRANS_H
#define STATICTRANS_H#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
/////////////////////////////////////////////////////////////////////////////
// CStaticTrans window#define TRANS_BACK -1class CStaticTrans : public CStatic
{
    // Construction
public:
    CStaticTrans();
    
private:
    COLORREF m_TextColor;
    COLORREF m_BackColor;
    CBrush   m_Brush;
    
// Operations
public:
    void SetTextColor(COLORREF col) { m_TextColor = col;
                                      UpdateCtrl();      }
    void SetBackColor(COLORREF col) { m_BackColor = col;
                                      UpdateCtrl();      }private:
    void UpdateCtrl();
    
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CStaticTrans)
//}}AFX_VIRTUAL// Implementation
public:
virtual ~CStaticTrans(); // Generated message map functions
protected:
//{{AFX_MSG(CStaticTrans)
afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);
//}}AFX_MSG DECLARE_MESSAGE_MAP()
};
#endif // STATICTRANS_H

Answer 3

/*===========================================================================
====                                                                     ====
====    File name           :  StaticTrans.cpp                           ====
====    Creation date       :  7/10/2001                                 ====
====    Author(s)           :  Dany Cantin                               ====
====                                                                     ====
===========================================================================*/#include "stdafx.h"
#include "StaticTrans.h"#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif/////////////////////////////////////////////////////////////////////////////
// CStaticTransCStaticTrans::CStaticTrans()
{
    m_TextColor = RGB(0, 0, 0);
    m_BackColor = TRANS_BACK;    
}CStaticTrans::~CStaticTrans()
{
}
BEGIN_MESSAGE_MAP(CStaticTrans, CStatic)
//{{AFX_MSG_MAP(CStaticTrans)
ON_WM_CTLCOLOR_REFLECT()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CStaticTrans message handlersHBRUSH CStaticTrans::CtlColor(CDC* pDC, UINT nCtlColor) 
{
    m_Brush.DeleteObject();
    
    if (m_BackColor == TRANS_BACK) {
        m_Brush.CreateStockObject(HOLLOW_BRUSH);
        pDC->SetBkMode(TRANSPARENT);
    }
    else {
        m_Brush.CreateSolidBrush(m_BackColor);
        pDC->SetBkColor(m_BackColor);
    }
    
    pDC->SetTextColor(m_TextColor);
    
    return (HBRUSH)m_Brush;
}void CStaticTrans::UpdateCtrl()
{
    CWnd* pParent = GetParent();
    CRect rect;
    
    GetWindowRect(rect);
    pParent->ScreenToClient(rect);
    rect.DeflateRect(2, 2);
    
    pParent->InvalidateRect(rect, FALSE);    
}

Answer 4

需要在父窗口中的WM_CTLCOLOR中设置透明效果