如何将CStatic控件的背景色设为透明呢？

[loverx]

如何将CStatic控件的背景色设为透明呢，在对话框中

[老夏Max]

从CStatic类派生自己类，重载ON_WM_CTLCOLOR_REFLECT()。需要现成的可以告诉我Mail，我发给你
或者你到网上搜索一下！

[老夏Max]

参考代码：
//头文件
/*===========================================================================
==== ====
==== 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 -1

class 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

[老夏Max]

//CPP文件
/*===========================================================================
==== ====
==== 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

/////////////////////////////////////////////////////////////////////////////
// CStaticTrans

CStaticTrans::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 handlers

HBRUSH 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);
}

[Mr-Chen]

pDC->SetBkMode(TRANSPARENT)就够了

[oyljerry]

重载WM_CTLCOLOR
pDC->SetBkMode(TRANSPARENT)

[lg2001]

楼上的都太复杂了
只要重载一下窗体的WM_CTLCOLOR事件，然后加入如下代码即可
//Set Static Control BackGround Transparent
if(nCtlColor==CTLCOLOR_STATIC)
pDC->SetBkMode(TRANSPARENT);
return hbr;
注意要在设计时将static的风格设为simple

[老夏Max]

我提供的是一个现成的类！！

[fastxyf]

重载一下窗体的WM_CTLCOLOR事件，然后加入如下代码
pDC->SetBkMode(TRANSPARENT);
return hbr;
注意要在设计时将static的风格设为simple

更改Static的内容时，要加InvalidateRect 对应static的位置

[LLLucifer]

重载WM_CTLCOLOR，同时将static的属性设置为TRANSPARENT
HBRUSH CDialog2::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

// TODO: Change any attributes of the DC here

//////////////////////
// 静态文本控件透明
//////////////////////
if(pWnd->GetDlgCtrlID() == IDC_STATIC) // 需要设置透明背景的static控件的id
{
pDC->SetBkMode(TRANSPARENT);
pDC->SetTextColor(RGB(0,0,0));//此处设置字体的颜色

return HBRUSH(GetStockObject(HOLLOW_BRUSH));
}
///////////////////
// 结束添加
///////////////////

// TODO: Return a different brush if the default is not desired
return hbr;
}