在透明窗体中显示文字.doc

_这个文档其实是一个完整的程序，代码很简单，但完全实现了在透明窗体中显示文字的功能。只要把这个程序都复制到程序中就可以实现了。我是用VC6做的。/detail/c_panpan/4739055如果不会，可以到这个网址，有这个程序。这一部分是.h部分：/ 在透明窗体上显示文字Dlg.h : header file/#if !defined(AFX_DLG_H_837F9773_AE38_4B5D_9738_01E99DA2A5DB_INCLUDED_)#define AFX_DLG_H_837F9773_AE38_4B5D_9738_01E99DA2A5DB_INCLUDED_#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000/ CMyDlg dialogclass CMyDlg : public CDialog/ Constructionpublic:CMyDlg(CWnd* pParent = NULL);/ standard constructor/ Dialog Data/AFX_DATA(CMyDlg)enum IDD = IDD_MY_DIALOG ;/ NOTE: the ClassWizard will add data members here/AFX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CMyDlg)protected:virtual void DoDataExchange(CDataExchange* pDX);/ DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:HICON m_hIcon;/ Generated message map functions/AFX_MSG(CMyDlg)virtual BOOL OnInitDialog();afx_msg void OnSysCommand(UINT nID, LPARAM lParam);afx_msg void OnPaint();afx_msg HCURSOR OnQueryDragIcon();afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);/AFX_MSGDECLARE_MESSAGE_MAP()private:HBRUSH m_hbr;/AFX_INSERT_LOCATION/ Microsoft Visual C+ will insert additional declarations immediately before the previous line.#endif / !defined(AFX_DLG_H_837F9773_AE38_4B5D_9738_01E99DA2A5DB_INCLUDED_)这一部分是.cpp部分/ 在透明窗体上显示文字Dlg.cpp : implementation file/#include stdafx.h#include 在透明窗体上显示文字.h#include 在透明窗体上显示文字Dlg.h#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialogpublic:CAboutDlg();/ Dialog Data/AFX_DATA(CAboutDlg)enum IDD = IDD_ABOUTBOX ;/AFX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CAboutDlg)protected:virtual void DoDataExchange(CDataExchange* pDX); / DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:/AFX_MSG(CAboutDlg)/AFX_MSGDECLARE_MESSAGE_MAP();CAboutDlg:CAboutDlg() : CDialog(CAboutDlg:IDD)/AFX_DATA_INIT(CAboutDlg)/AFX_DATA_INITvoid CAboutDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CAboutDlg)/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CAboutDlg, CDialog)/AFX_MSG_MAP(CAboutDlg)/ No message handlers/AFX_MSG_MAPEND_MESSAGE_MAP()/ CMyDlg dialogCMyDlg:CMyDlg(CWnd* pParent /*=NULL*/): CDialog(CMyDlg:IDD, pParent)/AFX_DATA_INIT(CMyDlg)/ NOTE: the ClassWizard will add member initialization here/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDR_MAINFRAME);void CMyDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CMyDlg)/ NOTE: the ClassWizard will add DDX and DDV calls here/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CMyDlg, CDialog)/AFX_MSG_MAP(CMyDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_WM_CTLCOLOR()/AFX_MSG_MAPEND_MESSAGE_MAP()/ CMyDlg message handlersBOOL CMyDlg:OnInitDialog()CDialog:OnInitDialog();/ Add About. menu item to system menu./ IDM_ABOUTBOX must be in the system command range.ASSERT(IDM_ABOUTBOX & 0xFFF0) = IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX AppendMenu(MF_SEPARATOR);pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);/ Set the icon for this dialog. The framework does this automatically/ when the applications main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small icon/加下面的这段代码/COLORREF maskColor = RGB(255,255,255);SetWindowLong(this-GetSafeHwnd(),GWL_EXSTYLE,GetWindowLong(this-GetSafeHwnd(),GWL_EXSTYLE)0x80000);HINSTANCE hInst=LoadLibrary(_T(User32.DLL);if(hInst)typedef BOOL (WINAPI * MYFUNC)(HWND , COLORREF,BYTE,DWORD);MYFUNC fun=NULL;fun=(MYFUNC)GetProcAddress(hInst,SetLayeredWindowAttributes);if(fun)fun(this-GetSafeHwnd(),maskColor,255,1);FreeLibrary(hInst);/return TRUE; / return TRUE unless you set the focus to a controlvoid CMyDlg:OnSysCommand(UINT nID, LPARAM lParam)if (nID & 0xFFF0) = IDM_ABOUTBOX)CAboutDlg dlgAbout;dlgAbout.DoModal();elseCDialog:OnSysCommand(nID, lParam);/ If you add a minimize button to your dialog, you will need the code below/ to draw the icon. For MFC applications using the document/view model,/ this is automatically done for you by the framework.void CMyDlg:OnPaint() CRect rect;CPaintDC dc(this);GetClientRect(rect);dc.FillSolidRect(rect,RGB(255,255,255); / The system calls this to obtain the cursor to display while the user drags/ the minimized window.HCURSOR CMyDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;HBRUSH CMyDlg:OnCtlColor(CDC* pDC, CWnd* pW