C++博客-天下-随笔分类-WTL

WTL中只使用ATL::CString

天下 — Tue, 13 Mar 2012 08:57:00 GMT

在stdafx.h中
//放在最前面
#define _WTL_NO_CSTRING
#include //这个必须放在 #include

因为ATL::CString是MFC与ATL公共类.

天下 2012-03-13 16:57 发表评论

WTL中窗口类的一些特殊处理

天下 — Tue, 21 Feb 2012 02:26:00 GMT

//WTL中窗口类的一些特殊处理

struct CWndClassInfo
{
    WNDCLASSEX m_wc;
    LPCSTR m_lpszOrigName;
    WNDPROC pWndProc;
    LPCSTR m_lpszCursorID;
    BOOL m_bSystemCursor;
    ATOM m_atom;
    CHAR m_szAutoName[5+sizeof(void*)*CHAR_BIT];
};
这个结构中有两个最重要的成员：m_wc和m_atom。m_wc是窗口类的结构，想要手动注册类时所使用的结构。m_atom用于确定这个类是否已经注册，在还没有注册类之前，修改m_wc还是有效果的。

typedef struct {
    UINT cbSize;
    UINT style;
    WNDPROC lpfnWndProc;
    int cbClsExtra;
    int cbWndExtra;
    HINSTANCE hInstance;
    HICON hIcon;
    HCURSOR hCursor;
    HBRUSH hbrBackground;
    LPCTSTR lpszMenuName;
    LPCTSTR lpszClassName;
    HICON hIconSm;
} WNDCLASSEX;

ATL::CWndClassInfo wc =
{
    { sizeof(WNDCLASSEX), style, StartWindowProc, 0, 0, NULL, NULL, NULL, (HBRUSH)(bkgnd + 1), NULL, WndClassName, NULL }, //WNDCLASSEX
    NULL,        //m_lpszOrigName
    NULL,         //pWndProc
    IDC_ARROW,    //m_lpszCursorID
    TRUE,         //m_bSystemCursor
    0,             //m_atom
    _T("")         //m_szAutoName
};

/////////////////////////////////////////////////////////////////////////////
// CWndClassInfo - Manages Windows class information

#define DECLARE_WND_CLASS(WndClassName) \
static ATL::CWndClassInfo& GetWndClassInfo() \
{ \
    static ATL::CWndClassInfo wc = \
    { \
        { sizeof(WNDCLASSEX), CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS, StartWindowProc, \
          0, 0, NULL, NULL, NULL, (HBRUSH)(COLOR_WINDOW + 1), NULL, WndClassName, NULL }, \
        NULL, NULL, IDC_ARROW, TRUE, 0, _T("") \
    }; \
    return wc; \
}

#define DECLARE_WND_CLASS_EX(WndClassName, style, bkgnd) \
static ATL::CWndClassInfo& GetWndClassInfo() \
{ \
    static ATL::CWndClassInfo wc = \
    { \
        { sizeof(WNDCLASSEX), style, StartWindowProc, \
          0, 0, NULL, NULL, NULL, (HBRUSH)(bkgnd + 1), NULL, WndClassName, NULL }, \
        NULL, NULL, IDC_ARROW, TRUE, 0, _T("") \
    }; \
    return wc; \
}

#define DECLARE_WND_SUPERCLASS(WndClassName, OrigWndClassName) \
static ATL::CWndClassInfo& GetWndClassInfo() \
{ \
    static ATL::CWndClassInfo wc = \
    { \
        { sizeof(WNDCLASSEX), 0, StartWindowProc, \
          0, 0, NULL, NULL, NULL, NULL, NULL, WndClassName, NULL }, \
        OrigWndClassName, NULL, NULL, TRUE, 0, _T("") \
    }; \
    return wc; \
}

天下 2012-02-21 10:26 发表评论

简单的CInfoTip类

天下 — Sat, 18 Feb 2012 09:36:00 GMT

//file:InfoTip.h
#pragma once
#include <atlwin.h>
class CInfoTip :
    public ATL::CWindowImpl<CInfoTip>
{
public:
    DECLARE_WND_CLASS_EX(NULL, 0, COLOR_3DFACE)

    LPCTSTR m_lpstrInfo;

    enum { m_nToolTipID = 1313 };
    WTL::CToolTipCtrl m_tooltip;

    CInfoTip():m_lpstrInfo(NULL)
    { }

    void Init(HWND hWnd, LPCTSTR lpstrName)
    {
        ATLASSERT(::IsWindow(hWnd));
        SubclassWindow(hWnd);

        // Set tooltip
        m_tooltip.Create(m_hWnd);
        ATLASSERT(m_tooltip.IsWindow());
        RECT rect;
        GetClientRect(&rect);
        CToolInfo ti(0, m_hWnd, m_nToolTipID, &rect, NULL);
        m_tooltip.AddTool(&ti);

        // set text
        m_lpstrInfo = lpstrName;
        if(m_lpstrInfo == NULL)
            return;

        m_tooltip.UpdateTipText(m_lpstrInfo, m_hWnd, m_nToolTipID);
        m_tooltip.Activate(true);
    }

    BEGIN_MSG_MAP(CInfoTip)
        MESSAGE_RANGE_HANDLER(WM_MOUSEFIRST, WM_MOUSELAST,OnMouseMessage)
    END_MSG_MAP()

    LRESULT OnMouseMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        if(m_tooltip.IsWindow())
        {
            MSG msg = { m_hWnd, uMsg, wParam, lParam };
            m_tooltip.RelayEvent(&msg);
        }
        bHandled = FALSE;
        return 1;
    }
};

//使用:

    CInfoTip m_InfoTipEdit;
    m_InfoTipEdit.Init(   GetDlgItem(   IDOK   ),   "输入密码 "     );

天下 2012-02-18 17:36 发表评论

How to move a dialog which does not have a caption(非标题栏移动对话框)

天下 — Thu, 16 Feb 2012 02:24:00 GMT

How to move a dialog which does not have a caption

Introduction

This article is aimed at beginners, and presents two ways to move a dialog which does not have a caption by dragging its client area.

1. WM_SYSCOMMAND message

Sending the WM_SYSCOMMAND message starts the move operation. Add the following code to handle the mouse down event:

BEGIN_MSG_MAP(CMainDlg)
    //...
    MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
END_MSG_MAP()

LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
    SendMessage(WM_SYSCOMMAND, SC_MOVE|HTCAPTION);
    return 0;
}

2. WM_NCHITTEST message

The idea is to handle the WM_NCHITTEST message to return HTCAPTION instead of HTCLIENT when the mouse is in the client area, to trick Windows to start moving the dialog.

BEGIN_MSG_MAP(CMainDlg)
    //...
    MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
END_MSG_MAP()

LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
    if (::DefWindowProc(m_hWnd, uMsg, wParam, lParam) ==
        HTCLIENT && ::GetAsyncKeyState(MK_LBUTTON) < 0)
      return HTCAPTION;

    return 0;
}

//For MFC
//Devil for ever supplied the MFC solution that is shown below (thanks!). The idea is the same - to handle the WM_NCHITTEST message.
UINT OnNcHitTest(CPoint point)
{
    UINT nHit = CDialog::OnNcHitTest(point);
    return (nHit == HTCLIENT ? HTCAPTION : nHit);
}

天下 2012-02-16 10:24 发表评论

WTL::CFileDialog

天下 — Mon, 13 Feb 2012 03:09:00 GMT

//MFC
CFileDialog dlg(TRUE,NULL,NULL,NULL,"数据文档(*.dat)|*.dat|模板文件(*.fpmb)|*.fpmb||");

//WTL
WTL::CFileDialog dlg(TRUE,NULL,NULL,NULL,"数据文档(*.dat)\0*.dat\0模板文件(*.fpmb)\0*.fpmb\0\0");

其中文件过滤器,MFC以|分隔,而WTL以\0分隔.

WTL::CFileDialog dlg(TRUE,0,0,OFN_EXPLORER,_T("Pictures (*.bmp;*.jpg;*.png)\0*.bmp;*.jpg;*.png\0All files (*.*)\0 *.*\0"),*this);

天下 2012-02-13 11:09 发表评论

wtl学习笔记(2),WTL(ATL)中的全局变量

天下 — Mon, 05 Dec 2011 04:32:00 GMT

//WTL(ATL)中的全局变量
//文件:externs.cpp
CAtlAllocator g_Allocator;
static const bool g_bInitialized = Init();

//文件:atlbase.cpp
ATL::CAtlBaseModule _AtlBaseModule;
ATL::CAtlWinModule _AtlWinModule;
ATL::CAtlComModule  _AtlComModule;

//文件:atlapp.h,DEBUG版本中才有
WTL::ATL::CTraceCategory atlTraceUI(_T("atlTraceUI"));

//你自己的应用程序入口文件,文件中包括WinMain()函数
CAppModule _Module;

//文件:atlbase.h
extern "C" IMAGE_DOS_HEADER __ImageBase;
extern CAtlComModule _AtlComModule;
extern CAtlWinModule _AtlWinModule;
__declspec(selectany) CComModule* _pModule = NULL;
//关键的构造函数,请注意成员变量:m_hInst及m_hInstResource,变量:__ImageBase
CAtlBaseModule::CAtlBaseModule() throw()
{
    cbSize = sizeof(_ATL_BASE_MODULE);
    m_hInst = m_hInstResource = reinterpret_cast<HINSTANCE>(&__ImageBase);
    dwAtlBuildVer = _ATL_VER;
    pguidVer = &GUID_ATLVer70;
    if (FAILED(m_csResource.Init()))
    {
        ATLTRACE(atlTraceGeneral, 0, _T("ERROR : Unable to initialize critical section in CAtlBaseModule\n"));
        ATLASSERT(0);
        CAtlBaseModule::m_bInitFailed = true;
    }
}

//文件:crt0.c
__declspec(noinline) int __tmainCRTStartup(void)
{
#ifdef _WINMAIN_
    lpszCommandLine = _twincmdln();
    mainret = _tWinMain( (HINSTANCE)&__ImageBase, NULL,lpszCommandLine,StartupInfo.dwFlags & STARTF_USESHOWWINDOW? StartupInfo.wShowWindow : SW_SHOWDEFAULT );
#else
    _tinitenv = _tenviron;
    mainret = _tmain(__argc, _targv, _tenviron);
#endif
}

天下 2011-12-05 12:32 发表评论

wtl学习笔记(1),窗口类的注册

天下 — Sat, 03 Dec 2011 03:54:00 GMT

任何非对话框窗口都是来自CWindowImpl派生
对话框窗口都是来自CDialogImpl派生
定义一个窗口的实现
你的新窗口类需要包含三件事情：
一、一个窗口类的定义,如:
    默认由父类CWindowImpl的DECLARE_WND_CLASS(NULL) 完成窗口WNDCLASS结构体的定义.
    也可以自己通过DECLARE_WND_CLASS(_T("My Window Class")) 完成窗口WNDCLASS结构体的定义.

二、添加消息映射链
    其中祖先类CWindowImplRoot继承自CMessageMap
三、窗口使用的默认窗口类型，称为称为window traits
预定义的window traits:
typedef CWinTraits<WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, 0> CControlWinTraits;
typedef CWinTraits<WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, WS_EX_APPWINDOW | WS_EX_WINDOWEDGE> CFrameWinTraits;
typedef CWinTraits<WS_OVERLAPPEDWINDOW | WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, WS_EX_MDICHILD>    CMDIChildWinTraits;
typedef CWinTraits<0, 0> CNullTraits;

类继承关系:
template <class T, class TBase /* = CWindow */, class TWinTraits /* = CControlWinTraits */>
class ATL_NO_VTABLE CWindowImpl : public CWindowImplBaseT< TBase, TWinTraits >
{
};

template <class TBase = CWindow, class TWinTraits = CControlWinTraits>
class ATL_NO_VTABLE CWindowImplBaseT : public CWindowImplRoot< TBase >
{
public:
    WNDPROC m_pfnSuperWindowProc;

    CWindowImplBaseT() : m_pfnSuperWindowProc(::DefWindowProc)
    {}
};

template <class TBase /* = CWindow */>
class ATL_NO_VTABLE CWindowImplRoot : public TBase, public CMessageMap
{
};

//窗口类的注册,宏:DECLARE_WND_CLASS
#define DECLARE_WND_CLASS(WndClassName) \
static ATL::CWndClassInfo& GetWndClassInfo() \
{ \
    static ATL::CWndClassInfo wc = \
    { \
        { sizeof(WNDCLASSEX), CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS, StartWindowProc, \
          0, 0, NULL, NULL, NULL, (HBRUSH)(COLOR_WINDOW + 1), NULL, WndClassName, NULL }, \
        NULL, NULL, IDC_ARROW, TRUE, 0, _T("") \
    }; \
    return wc; \
}

全局变量:_AtlWinModule,_AtlBaseModule
extern CAtlWinModule _AtlWinModule;
extern CAtlBaseModule _AtlBaseModule;

//窗口类WNDCLASS结构体的填充
struct _ATL_WNDCLASSINFOA
{
    WNDCLASSEXA m_wc;
    LPCSTR m_lpszOrigName;
    WNDPROC pWndProc;
    LPCSTR m_lpszCursorID;
    BOOL m_bSystemCursor;
    ATOM m_atom;
    CHAR m_szAutoName[5+sizeof(void*)*CHAR_BIT];
    ATOM Register(WNDPROC* p)
    {
        return AtlWinModuleRegisterWndClassInfoA(&_AtlWinModule, &_AtlBaseModule, this, p);
    }
};
typedef _ATL_WNDCLASSINFOA CWndClassInfoA;

窗口注册过程
CMainFrame wndMain;
CFrameWindowImpl::Create()
ATOM atom = T::GetWndClassInfo().Register(&m_pfnSuperWindowProc);
//模板展开后
//ATOM atom = CMainFrame::GetWndClassInfo().Register(&m_pfnSuperWindowProc);
//这里的T就是类 CMainFrame
//然后通过如下代码,返回一个静态变量 static WTL::CFrameWndClassInfo wc;

CFrameWndClassInfo::Register(&m_pfnSuperWindowProc);
//CWindowImplBaseT::m_pfnSuperWindowProc
//CWindowImplBaseT() : m_pfnSuperWindowProc(::DefWindowProc){}

#include <atlbase.h>
#include <atlwin.h>

//可选的消息处理类
template <typename T>
class CPaintBkgnd : public CMessageMap
{
public:
    BEGIN_MSG_MAP(CPaintBkgnd)
        MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBkgnd)
    END_MSG_MAP()

    LRESULT OnEraseBkgnd(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        T*   pT = static_cast<T*>(this);
        HDC  dc = (HDC)wParam;
        RECT rcClient;
        pT->GetClientRect ( &rcClient );
        ::FillRect(dc, &rcClient, CreateSolidBrush(RGB(0xff,0x66,0x99)) );
        return 1;
    }
};

class CMyWindow :
    public CWindowImpl<CMyWindow, CWindow,CFrameWinTraits>,
    public CPaintBkgnd<CMyWindow>

{
public:
    //DECLARE_WND_CLASS(_T("abc"))
    BEGIN_MSG_MAP(CMyWindow)
        MESSAGE_HANDLER(WM_CREATE, OnCreate)
        MESSAGE_HANDLER(WM_CLOSE, OnClose)
        //CHAIN_MSG_MAP(CPaintBkgnd)
        MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBkgnd)
    END_MSG_MAP()

    LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        ATLTRACE("WM_CREATE==0x0001,MSG ID:0x%u\n",uMsg);
        return 0;
    }
    LRESULT OnClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        DestroyWindow();
        PostQuitMessage(0);
        return 0;
    }
    LRESULT OnEraseBkgnd(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
        HDC  dc = (HDC) wParam;
        RECT rcClient;
        this->GetClientRect ( &rcClient );
        ::FillRect(dc, &rcClient, CreateSolidBrush(RGB(0xff,0x66,0x00)) );
        return 1;
    }
};

int _tWinMain(HINSTANCE hInstance, HINSTANCE /*hPrevInstance*/, LPTSTR lpstrCmdLine, int nCmdShow)
{
    CMyWindow wndMain;
    HWND hWnd = wndMain.Create(NULL,NULL,"good luck Aaron");
    if (hWnd==NULL)
    {
        ::MessageBox(NULL,"创建窗口失败","提示",MB_OK);
    }
    wndMain.ShowWindow(nCmdShow);
    wndMain.UpdateWindow();

    MSG msg;
    while ( GetMessage ( &msg, NULL, 0, 0 ) > 0 )
    {
        TranslateMessage ( &msg );
        DispatchMessage ( &msg );
    }
    return 0;
}

天下 2011-12-03 11:54 发表评论

WTL资源

天下 — Fri, 19 Aug 2011 05:36:00 GMT

WTL
http://wtl.sourceforge.net/

VISUALFC
http://code.google.com/p/visualfc/downloads/list

WTLHELPER
Sourceforge 上的项目已经建立起来了, 网址是:
http://sourceforge.net/projects/wtlhelper9

http://www.codeproject.com/KB/macros/wtlhelper.aspx

天下 2011-08-19 13:36 发表评论