用Visual C++实现带阴影弹出窗口的技术

  

  // Generated message map functions

protected:

  //{{AFX_MSG(CShadowWnd)

  afx_msg void OnNcPaint();

  afx_msg void OnPaint();

  afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);

  //}}AFX_MSG

  DECLARE_MESSAGE_MAP()

};

 

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

 

//{{AFX_INSERT_LOCATION}}

// Microsoft Developer Studio will insert additional declarations immediately before the previous line.

 

#endif // !defined(AFX_SHADOWWND_H__B971A958_59CC_11D2_AC8F_0060084237F6__INCLUDED_)

 

//实现文件
}

// ShadowWnd.cpp : implementation file

//

 

#include "stdafx.h"

#include "Shadow.h"

#include "ShadowWnd.h"

 

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

 

//定义常数

 

static int aPattern[]={0xAA,0x55,0xAA,0x55,0xAA,0x55,0xAA,0x55};//阴影位图数组

#define SPOPUP_SHADOWWIDTH  10 //阴影宽度

#define SPOPUP_SHADOWHEIGHT 13 //阴影高度

#define MAXWIDTH  400 //显示字符矩形的最大宽度

 

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

// CShadowWnd

 

CShadowWnd::CShadowWnd()

{

  CBitmap bmp;

  bmp.CreateBitmap(8,8,1,1,(void* )aPattern);//创建一个阴影位图

  m_bmpBrush.CreatePatternBrush(&bmp); //创建一把阴影刷

 

}

 

CShadowWnd::~CShadowWnd()

{

}

 

 

BEGIN_MESSAGE_MAP(CShadowWnd, CWnd)

  //{{AFX_MSG_MAP(CShadowWnd)

  ON_WM_NCPAINT()

  ON_WM_PAINT()

  ON_WM_CREATE()

  //}}AFX_MSG_MAP

END_MESSAGE_MAP()

 

 

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

// CShadowWnd message handlers

 

BOOL CShadowWnd::Create(const RECT& rect, CWnd* pParentWnd)

{

  // TODO: Add your specialized code here and/or call the base class

  const char*  pClassName=AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW);

  return CWnd::CreateEx(WS_EX_STATICEDGE,pClassName, "Shadow window", WS_POPUP,

    rect.left,rect.top,rect.right,rect.bottom,

    pParentWnd->GetSafeHwnd(),0,NULL);

}