zhipuzi_pos_windows/DuiLib/Core/UIBase.cpp

#include "StdAfx.h"
#include "UIManager.h"

#ifdef _DEBUG
#include <shlwapi.h>
#pragma comment(lib, "shlwapi.lib")
#endif

namespace DuiLib {

// WM_TOUCH 消息 ID 在 winuser.h 里受 `#if _WIN32_WINNT >= 0x0601` 保护，
// 而 DuiLib 工程的 _WIN32_WINNT 兜底为 XP(0x0501)，直接引用会编译失败，这里自行声明。
#ifndef WM_TOUCH
#define WM_TOUCH 0x0240
#endif
// WM_POINTER* 系列（Win8+），同样不在 XP 段里。仅用于模态期间屏蔽 owner 的输入。
#define DUI_WM_POINTER_FIRST 0x0246
#define DUI_WM_POINTER_LAST  0x0259

namespace {
    typedef BOOL (WINAPI* PFN_REGISTER_TOUCH_WINDOW)(HWND, ULONG);

    // 与 SDK tagTOUCHINPUT 布局一致的私有副本（同样受 _WIN32_WINNT 保护，不能直接用）
    struct TRACE_TOUCHINPUT
    {
        LONG      x;
        LONG      y;
        HANDLE    hSource;
        DWORD     dwID;
        DWORD     dwFlags;
        DWORD     dwMask;
        DWORD     dwTime;
        ULONG_PTR dwExtraInfo;
        DWORD     cxContact;
        DWORD     cyContact;
    };
    typedef BOOL (WINAPI* PFN_GET_TOUCH_INPUT_INFO)(HANDLE, UINT, TRACE_TOUCHINPUT*, int);

    void RegisterTouchWindowIfAvailable(HWND hWnd)
    {
        if (hWnd == NULL) return;
        HMODULE hUser32 = ::GetModuleHandle(_T("user32.dll"));
        if (hUser32 == NULL) return;
        PFN_REGISTER_TOUCH_WINDOW pfnRegister =
            reinterpret_cast<PFN_REGISTER_TOUCH_WINDOW>(::GetProcAddress(hUser32, "RegisterTouchWindow"));
        if (pfnRegister != NULL)
            pfnRegister(hWnd, 0);
    }

    // 诊断：WM_TOUCH 究竟落在哪个窗口上（弹框自己？还是被禁用/被挡住的 owner？）。
    // ⚠️ 只 peek，绝不调用 CloseTouchInputHandle：句柄必须交给 CPaintManagerUI::OnTouchInput 关闭。
    void TraceTouchArrival(HWND hWnd, WPARAM wParam, LPARAM lParam)
    {
        HMODULE hUser32 = ::GetModuleHandle(_T("user32.dll"));
        if (hUser32 == NULL) return;
        PFN_GET_TOUCH_INPUT_INFO pfnGet =
            reinterpret_cast<PFN_GET_TOUCH_INPUT_INFO>(::GetProcAddress(hUser32, "GetTouchInputInfo"));
        int x = 0, y = 0;
        DWORD flags = 0;
        UINT cInputs = LOWORD(wParam);
        TRACE_TOUCHINPUT ti;
        ::ZeroMemory(&ti, sizeof(ti));
        if (pfnGet != NULL && cInputs > 0 && pfnGet((HANDLE)lParam, 1, &ti, (int)sizeof(ti)))
        {
            x = (int)(ti.x / 100);
            y = (int)(ti.y / 100);
            flags = ti.dwFlags;
        }
        DuiLib::TouchTrace::Log(_T("WNDPROC-TOUCH hwnd=%p owner=%p parent=%p enabled=%d visible=%d pt=%d,%d flags=0x%X inputs=%u modal=%p fg=%p"),
            (void*)hWnd, (void*)::GetWindow(hWnd, GW_OWNER), (void*)::GetParent(hWnd),
            (int)::IsWindowEnabled(hWnd), (int)::IsWindowVisible(hWnd),
            x, y, (unsigned)flags, cInputs,
            (void*)DuiLib::CPaintManagerUI::GetModalWindow(), (void*)::GetForegroundWindow());
    }

    // 上一次"抢回前台"的时间戳（限流用，避免频繁改激活状态打断输入）
    DWORD s_dwLastModalFocusFix = 0;

    // 模态期间需要屏蔽的输入类消息（发给被弹框挡住的 owner 时直接丢弃，不再派发）
    bool IsModalBlockedInputMessage(UINT uMsg)
    {
        if (uMsg == WM_TOUCH) return true;                                  // 0x0240
        if (uMsg >= DUI_WM_POINTER_FIRST && uMsg <= DUI_WM_POINTER_LAST) return true;
        if (uMsg >= 0x0200 && uMsg <= 0x020E) return true;                  // WM_MOUSEMOVE .. WM_MOUSELAST
        if (uMsg >= 0x00A0 && uMsg <= 0x00AD) return true;                  // WM_NCMOUSEMOVE .. WM_NCXBUTTONDBLCLK
        if (uMsg >= WM_KEYFIRST && uMsg <= WM_KEYLAST) return true;         // 键盘
        if (uMsg == WM_MOUSEACTIVATE) return true;
        return false;
    }
}

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

void UILIB_API DUI__Trace(LPCTSTR pstrFormat, ...)
{
#ifdef _DEBUG
	TCHAR szBuffer[2048] = {0};
    va_list args;
    va_start(args, pstrFormat);
	_vsntprintf(szBuffer, 2048, pstrFormat, args); 
    va_end(args);
    
	CDuiString strMsg = szBuffer;
    strMsg += _T("\n");
    OutputDebugString(strMsg.GetData());

#endif
}

LPCTSTR DUI__TraceMsg(UINT uMsg)
{
#define MSGDEF(x) if(uMsg==x) return _T(#x)
    MSGDEF(WM_SETCURSOR);
    MSGDEF(WM_NCHITTEST);
    MSGDEF(WM_NCPAINT);
    MSGDEF(WM_PAINT);
    MSGDEF(WM_ERASEBKGND);
    MSGDEF(WM_NCMOUSEMOVE);  
    MSGDEF(WM_MOUSEMOVE);
    MSGDEF(WM_MOUSELEAVE);
    MSGDEF(WM_MOUSEHOVER);   
    MSGDEF(WM_NOTIFY);
    MSGDEF(WM_COMMAND);
    MSGDEF(WM_MEASUREITEM);
    MSGDEF(WM_DRAWITEM);   
    MSGDEF(WM_LBUTTONDOWN);
    MSGDEF(WM_LBUTTONUP);
    MSGDEF(WM_LBUTTONDBLCLK);
    MSGDEF(WM_RBUTTONDOWN);
    MSGDEF(WM_RBUTTONUP);
    MSGDEF(WM_RBUTTONDBLCLK);
    MSGDEF(WM_SETFOCUS);
    MSGDEF(WM_KILLFOCUS);  
    MSGDEF(WM_MOVE);
    MSGDEF(WM_SIZE);
    MSGDEF(WM_SIZING);
    MSGDEF(WM_MOVING);
    MSGDEF(WM_GETMINMAXINFO);
    MSGDEF(WM_CAPTURECHANGED);
    MSGDEF(WM_WINDOWPOSCHANGED);
    MSGDEF(WM_WINDOWPOSCHANGING);   
    MSGDEF(WM_NCCALCSIZE);
    MSGDEF(WM_NCCREATE);
    MSGDEF(WM_NCDESTROY);
    MSGDEF(WM_TIMER);
    MSGDEF(WM_KEYDOWN);
    MSGDEF(WM_KEYUP);
    MSGDEF(WM_CHAR);
    MSGDEF(WM_SYSKEYDOWN);
    MSGDEF(WM_SYSKEYUP);
    MSGDEF(WM_SYSCOMMAND);
    MSGDEF(WM_SYSCHAR);
    MSGDEF(WM_VSCROLL);
    MSGDEF(WM_HSCROLL);
    MSGDEF(WM_CHAR);
    MSGDEF(WM_SHOWWINDOW);
    MSGDEF(WM_PARENTNOTIFY);
    MSGDEF(WM_CREATE);
    MSGDEF(WM_NCACTIVATE);
    MSGDEF(WM_ACTIVATE);
    MSGDEF(WM_ACTIVATEAPP);   
    MSGDEF(WM_CLOSE);
    MSGDEF(WM_DESTROY);
    MSGDEF(WM_GETICON);   
    MSGDEF(WM_GETTEXT);
    MSGDEF(WM_GETTEXTLENGTH);   
    static TCHAR szMsg[10];
    ::wsprintf(szMsg, _T("0x%04X"), uMsg);
    return szMsg;
}

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

//////////////////////////////////////////////////////////////////////////
//
DUI_BASE_BEGIN_MESSAGE_MAP(CNotifyPump)
DUI_END_MESSAGE_MAP()

static const DUI_MSGMAP_ENTRY* DuiFindMessageEntry(const DUI_MSGMAP_ENTRY* lpEntry,TNotifyUI& msg )
{
	CDuiString sMsgType = msg.sType;
	CDuiString sCtrlName = msg.pSender->GetName();
	const DUI_MSGMAP_ENTRY* pMsgTypeEntry = NULL;
	while (lpEntry->nSig != DuiSig_end)
	{
		if(lpEntry->sMsgType==sMsgType)
		{
			if(!lpEntry->sCtrlName.IsEmpty())
			{
				if(lpEntry->sCtrlName==sCtrlName)
				{
					return lpEntry;
				}
			}
			else
			{
				pMsgTypeEntry = lpEntry;
			}
		}
		lpEntry++;
	}
	return pMsgTypeEntry;
}

bool CNotifyPump::AddVirtualWnd(CDuiString strName,CNotifyPump* pObject)
{
	if( m_VirtualWndMap.Find(strName) == NULL )
	{
		m_VirtualWndMap.Insert(strName.GetData(),(LPVOID)pObject);
		return true;
	}
	return false;
}

bool CNotifyPump::RemoveVirtualWnd(CDuiString strName)
{
	if( m_VirtualWndMap.Find(strName) != NULL )
	{
		m_VirtualWndMap.Remove(strName);
		return true;
	}
	return false;
}

bool CNotifyPump::LoopDispatch(TNotifyUI& msg)
{
	const DUI_MSGMAP_ENTRY* lpEntry = NULL;
	const DUI_MSGMAP* pMessageMap = NULL;

#ifndef UILIB_STATIC
	for(pMessageMap = GetMessageMap(); pMessageMap!=NULL; pMessageMap = (*pMessageMap->pfnGetBaseMap)())
#else
	for(pMessageMap = GetMessageMap(); pMessageMap!=NULL; pMessageMap = pMessageMap->pBaseMap)
#endif
	{
#ifndef UILIB_STATIC
		ASSERT(pMessageMap != (*pMessageMap->pfnGetBaseMap)());
#else
		ASSERT(pMessageMap != pMessageMap->pBaseMap);
#endif
		if ((lpEntry = DuiFindMessageEntry(pMessageMap->lpEntries,msg)) != NULL)
		{
			goto LDispatch;
		}
	}
	return false;

LDispatch:
	union DuiMessageMapFunctions mmf;
	mmf.pfn = lpEntry->pfn;

	bool bRet = false;
	int nSig;
	nSig = lpEntry->nSig;
	switch (nSig)
	{
	default:
		ASSERT(FALSE);
		break;
	case DuiSig_lwl:
		(this->*mmf.pfn_Notify_lwl)(msg.wParam,msg.lParam);
		bRet = true;
		break;
	case DuiSig_vn:
		(this->*mmf.pfn_Notify_vn)(msg);
		bRet = true;
		break;
	}
	return bRet;
}

void CNotifyPump::NotifyPump(TNotifyUI& msg)
{
	///遍历虚拟窗口
	if( !msg.sVirtualWnd.IsEmpty() ){
		for( int i = 0; i< m_VirtualWndMap.GetSize(); i++ ) {
			if( LPCTSTR key = m_VirtualWndMap.GetAt(i) ) {
				if( _tcsicmp(key, msg.sVirtualWnd.GetData()) == 0 ){
					CNotifyPump* pObject = static_cast<CNotifyPump*>(m_VirtualWndMap.Find(key, false));
					if( pObject && pObject->LoopDispatch(msg) )
						return;
				}
			}
		}
	}

	///
	//遍历主窗口
	LoopDispatch( msg );
}

//////////////////////////////////////////////////////////////////////////
///
CWindowWnd::CWindowWnd() : m_hWnd(NULL), m_OldWndProc(::DefWindowProc), m_bSubclassed(false), m_bUnicode(false), m_bFakeModal(false)
{
}

HWND CWindowWnd::GetHWND() const 
{ 
    return m_hWnd; 
}

UINT CWindowWnd::GetClassStyle() const
{
    return 0;
}

LPCTSTR CWindowWnd::GetSuperClassName() const
{
    return NULL;
}

CWindowWnd::operator HWND() const
{
    return m_hWnd;
}
void CWindowWnd::EnableUnicode()
{
	m_bUnicode = true;
}
HWND CWindowWnd::CreateDuiWindow( HWND hwndParent, LPCTSTR pstrWindowName,DWORD dwStyle /*=0*/, DWORD dwExStyle /*=0*/ )
{
	return Create(hwndParent,pstrWindowName,dwStyle,dwExStyle,0,0,0,0,NULL);
}

HWND CWindowWnd::Create(HWND hwndParent, LPCTSTR pstrName, DWORD dwStyle, DWORD dwExStyle, const RECT rc, HMENU hMenu)
{
    return Create(hwndParent, pstrName, dwStyle, dwExStyle, rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top, hMenu);
}

HWND CWindowWnd::Create(HWND hwndParent, LPCTSTR pstrName, DWORD dwStyle, DWORD dwExStyle, int x, int y, int cx, int cy, HMENU hMenu)
{
    if( GetSuperClassName() != NULL && !RegisterSuperclass() ) return NULL;
    if( GetSuperClassName() == NULL && !RegisterWindowClass() ) return NULL;
	if(m_bUnicode) {
#ifndef UNICODE
		LPWSTR lpClassName = a2w((char*)GetWindowClassName());
		LPWSTR lpName = a2w((char*)pstrName);
#else
		LPWSTR lpClassName = (LPWSTR)GetWindowClassName();
		LPWSTR lpName = (LPWSTR)pstrName;
#endif
		m_hWnd = ::CreateWindowExW(dwExStyle, lpClassName, lpName, dwStyle, x, y, cx, cy, hwndParent, hMenu, CPaintManagerUI::GetInstance(), this);
#ifndef UNICODE
		delete []lpClassName;
		delete []lpName;
#endif
	}
	else {
		m_hWnd = ::CreateWindowEx(dwExStyle, GetWindowClassName(), pstrName, dwStyle, x, y, cx, cy, hwndParent, hMenu, CPaintManagerUI::GetInstance(), this);
	}
    ASSERT(m_hWnd!=NULL);
    RegisterTouchWindowIfAvailable(m_hWnd);
    return m_hWnd;
}

HWND CWindowWnd::Subclass(HWND hWnd)
{
    ASSERT(::IsWindow(hWnd));
    ASSERT(m_hWnd==NULL);
    m_OldWndProc = SubclassWindow(hWnd, __WndProc);
    if( m_OldWndProc == NULL ) return NULL;
    m_bSubclassed = true;
    m_hWnd = hWnd;
    ::SetWindowLongPtr(hWnd, GWLP_USERDATA, reinterpret_cast<LPARAM>(this));
    RegisterTouchWindowIfAvailable(m_hWnd);
    return m_hWnd;
}

void CWindowWnd::Unsubclass()
{
    ASSERT(::IsWindow(m_hWnd));
    if( !::IsWindow(m_hWnd) ) return;
    if( !m_bSubclassed ) return;
    SubclassWindow(m_hWnd, m_OldWndProc);
    m_OldWndProc = ::DefWindowProc;
    m_bSubclassed = false;
}

void CWindowWnd::ShowWindow(bool bShow /*= true*/, bool bTakeFocus /*= false*/)
{
    ASSERT(::IsWindow(m_hWnd));
    if( !::IsWindow(m_hWnd) ) return;
    ::ShowWindow(m_hWnd, bShow ? (bTakeFocus ? SW_SHOWNORMAL : SW_SHOWNOACTIVATE) : SW_HIDE);
}

UINT CWindowWnd::ShowModal()
{
    ASSERT(::IsWindow(m_hWnd));
    UINT nRet = 0;
    HWND hWndParent = GetWindowOwner(m_hWnd);
    const bool bBlockParent = (hWndParent != NULL && ::IsWindow(hWndParent));

    RegisterTouchWindowIfAvailable(m_hWnd);

    // -------------------------------------------------------------------------
    // 【重要】这里不再调用 ::EnableWindow(hWndParent, FALSE)。
    //
    // 原因：Windows 8/10 把触摸输入改成了 Pointer 栈，触摸消息(WM_TOUCH / WM_POINTER*)
    // 的投递目标与"窗口是否被禁用 / 是否是活动窗口"强相关。实测在 Win10 上，只要 owner
    // 被 EnableWindow(FALSE) 禁用，手势就会被系统转投给被禁用的 owner 而不再到达弹框，
    // 于是弹框既收不到 WM_TOUCH（滚动条无法触摸滑动）、也没有可靠的提升鼠标消息可用
    // （点击无反应）；而在 Win7 上鼠标/触摸提升路径不受此影响，所以旧写法一直正常。
    //
    // 模态性改用两条等价手段保证：
    //   ① 弹框置顶 + 激活，抢到前台；
    //   ② 消息循环里丢弃所有发给 owner（及其子窗口）的输入类消息（见 IsModalBlockedInputMessage）。
    //      —— owner 保持 enabled，它的鼠标/键盘/触摸都不会被派发，等价于"点不动"；
    //   ③ CPaintManagerUI 层再加一道：有模态弹框时，非弹框窗口收到 WM_TOUCH 直接忽略。
    // -------------------------------------------------------------------------
    ::ShowWindow(m_hWnd, SW_SHOWNORMAL);
    ::SetWindowPos(m_hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
    ::BringWindowToTop(m_hWnd);
    ::SetForegroundWindow(m_hWnd);
    ::SetActiveWindow(m_hWnd);
    ::SetFocus(m_hWnd);
    // 显示之后再注册一次（幂等，重复调用无害）：确保最终窗口样式下的触摸注册生效。
    RegisterTouchWindowIfAvailable(m_hWnd);

    // 支持弹框嵌套：保存外层模态窗口，退出时恢复
    HWND hPrevModal = CPaintManagerUI::GetModalWindow();
    CPaintManagerUI::SetModalWindow(m_hWnd);
    DuiLib::TouchTrace::Log(_T("MODAL-ENTER hwnd=%p owner=%p foreground=%p active=%p focus=%p enabled=%d style=0x%08X ex=0x%08X"),
        (void*)m_hWnd, (void*)hWndParent, (void*)::GetForegroundWindow(), (void*)::GetActiveWindow(),
        (void*)::GetFocus(), (int)::IsWindowEnabled(m_hWnd),
        (unsigned)::GetWindowLong(m_hWnd, GWL_STYLE), (unsigned)::GetWindowLong(m_hWnd, GWL_EXSTYLE));

    MSG msg = { 0 };
    while( ::IsWindow(m_hWnd) && ::GetMessage(&msg, NULL, 0, 0) ) {
        if( msg.message == WM_QUIT ) break;

        // 模态期间：owner 及其子窗口的任何输入消息都不派发（等价于原来的禁用效果）
        if( bBlockParent && msg.hwnd != NULL
            && (msg.hwnd == hWndParent || ::IsChild(hWndParent, msg.hwnd))
            && IsModalBlockedInputMessage(msg.message) )
        {
            continue;
        }

        if( msg.message == WM_CLOSE && msg.hwnd == m_hWnd ) {
            nRet = (int)msg.wParam;
            ::SetFocus(hWndParent);
        }

        // Win10 前台锁比 Win7 严格：弹框偶尔会丢掉前台/激活状态，之后触摸就会被路由到别处。
        // 这里做限流补偿（≥800ms 一次，且【绝不在手势消息期间】执行，避免打断输入路由）。
        if( !IsModalBlockedInputMessage(msg.message) )
        {
            const DWORD dwNow = ::GetTickCount();
            if( (LONG)(dwNow - s_dwLastModalFocusFix) >= 800
                && (::GetActiveWindow() != m_hWnd || ::GetForegroundWindow() != m_hWnd) )
            {
                s_dwLastModalFocusFix = dwNow;
                DuiLib::TouchTrace::Log(_T("MODAL-REACTIVATE hwnd=%p active=%p foreground=%p"),
                    (void*)m_hWnd, (void*)::GetActiveWindow(), (void*)::GetForegroundWindow());
                ::BringWindowToTop(m_hWnd);
                ::SetForegroundWindow(m_hWnd);
                ::SetActiveWindow(m_hWnd);
                ::SetFocus(m_hWnd);
            }
        }

        if( !CPaintManagerUI::TranslateMessage(&msg) ) {
            ::TranslateMessage(&msg);
            ::DispatchMessage(&msg);
        }
    }

    CPaintManagerUI::SetModalWindow(hPrevModal);
    if( ::IsWindow(m_hWnd) )
        ::SetWindowPos(m_hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
    if( hWndParent != NULL ) {
        if( ::IsWindow(hWndParent) ) {
            ::EnableWindow(hWndParent, TRUE);
            ::SetForegroundWindow(hWndParent);
            ::SetFocus(hWndParent);
        }
    }
    DuiLib::TouchTrace::Log(_T("MODAL-EXIT hwnd=%p owner=%p ret=%u"), (void*)m_hWnd, (void*)hWndParent, nRet);
    if( msg.message == WM_QUIT ) ::PostQuitMessage((int)msg.wParam);
    return nRet;
}

void CWindowWnd::ShowModalFake()
{
    ASSERT(::IsWindow(m_hWnd));
    auto p_hwnd = GetWindowOwner(m_hWnd);
    ASSERT(::IsWindow(p_hwnd));
    ASSERT(p_hwnd);
    ::EnableWindow(p_hwnd, FALSE);
    ShowWindow();
    m_bFakeModal = true;
}

void CWindowWnd::Close(UINT nRet)
{
    if (m_bFakeModal)
    {
        auto parent_hwnd = GetWindowOwner(m_hWnd);
        ASSERT(::IsWindow(parent_hwnd));
        ::EnableWindow(parent_hwnd, TRUE);
        ::SetFocus(parent_hwnd);
        m_bFakeModal = false;
    }

    ASSERT(::IsWindow(m_hWnd));
    if (!::IsWindow(m_hWnd)) return;
    PostMessage(WM_CLOSE, (WPARAM)nRet, 0L);
}

void CWindowWnd::CenterWindow()
{
    ASSERT(::IsWindow(m_hWnd));
    ASSERT((GetWindowStyle(m_hWnd)&WS_CHILD)==0);
    RECT rcDlg = { 0 };
    ::GetWindowRect(m_hWnd, &rcDlg);
    RECT rcArea = { 0 };
    RECT rcCenter = { 0 };
	HWND hWnd=*this;
    HWND hWndParent = ::GetParent(m_hWnd);
    HWND hWndCenter = ::GetWindowOwner(m_hWnd);
	if (hWndCenter!=NULL)
		hWnd=hWndCenter;

	// 处理多显示器模式下屏幕居中
	MONITORINFO oMonitor = {};
	oMonitor.cbSize = sizeof(oMonitor);
	::GetMonitorInfo(::MonitorFromWindow(hWnd, MONITOR_DEFAULTTONEAREST), &oMonitor);
	rcArea = oMonitor.rcWork;

    if( hWndCenter == NULL )
		rcCenter = rcArea;
	else
		::GetWindowRect(hWndCenter, &rcCenter);

    int DlgWidth = rcDlg.right - rcDlg.left;
    int DlgHeight = rcDlg.bottom - rcDlg.top;

    // Find dialog's upper left based on rcCenter
    int xLeft = (rcCenter.left + rcCenter.right) / 2 - DlgWidth / 2;
    int yTop = (rcCenter.top + rcCenter.bottom) / 2 - DlgHeight / 2;

    // The dialog is outside the screen, move it inside
    if( xLeft < rcArea.left ) xLeft = rcArea.left;
    else if( xLeft + DlgWidth > rcArea.right ) xLeft = rcArea.right - DlgWidth;
    if( yTop < rcArea.top ) yTop = rcArea.top;
    else if( yTop + DlgHeight > rcArea.bottom ) yTop = rcArea.bottom - DlgHeight;
    ::SetWindowPos(m_hWnd, NULL, xLeft, yTop, -1, -1, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}

void CWindowWnd::SetIcon(UINT nRes)
{
	HICON hIcon = (HICON)::LoadImage(CPaintManagerUI::GetInstance(), MAKEINTRESOURCE(nRes), IMAGE_ICON,
		(::GetSystemMetrics(SM_CXICON) + 15) & ~15, (::GetSystemMetrics(SM_CYICON) + 15) & ~15,	// 防止高DPI下图标模糊
		LR_DEFAULTCOLOR);
	ASSERT(hIcon);
	::SendMessage(m_hWnd, WM_SETICON, (WPARAM) TRUE, (LPARAM) hIcon);

	hIcon = (HICON)::LoadImage(CPaintManagerUI::GetInstance(), MAKEINTRESOURCE(nRes), IMAGE_ICON,
		(::GetSystemMetrics(SM_CXICON) + 15) & ~15, (::GetSystemMetrics(SM_CYICON) + 15) & ~15,	// 防止高DPI下图标模糊
		LR_DEFAULTCOLOR);
	ASSERT(hIcon);
	::SendMessage(m_hWnd, WM_SETICON, (WPARAM) FALSE, (LPARAM) hIcon);
}

bool CWindowWnd::RegisterWindowClass()
{
    WNDCLASS wc = { 0 };
    wc.style = GetClassStyle();
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hIcon = NULL;
    wc.lpfnWndProc = CWindowWnd::__WndProc;
    wc.hInstance = CPaintManagerUI::GetInstance();
    wc.hCursor = ::LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = NULL;
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = GetWindowClassName();
    ATOM ret = ::RegisterClass(&wc);
    ASSERT(ret!=NULL || ::GetLastError()==ERROR_CLASS_ALREADY_EXISTS);
    return ret != NULL || ::GetLastError() == ERROR_CLASS_ALREADY_EXISTS;
}

bool CWindowWnd::RegisterSuperclass()
{
	if(m_bUnicode) {
#ifndef UNICODE
		LPWSTR lpSuperClassName = a2w((char*)GetSuperClassName());
		LPWSTR lpClassName = a2w((char*)GetWindowClassName());
#else
		LPWSTR lpSuperClassName = (LPWSTR)GetSuperClassName();
		LPWSTR lpClassName = (LPWSTR)GetWindowClassName();
#endif

		// Get the class information from an existing
		// window so we can subclass it later on...
		WNDCLASSEXW wc = { 0 };
		wc.cbSize = sizeof(WNDCLASSEXW);
		if( !::GetClassInfoExW(NULL, lpSuperClassName, &wc) ) {
			if( !::GetClassInfoExW(CPaintManagerUI::GetInstance(), lpSuperClassName, &wc) ) {
				ASSERT(!"Unable to locate window class");
				return NULL;
			}
		}
		m_OldWndProc = wc.lpfnWndProc;
		wc.lpfnWndProc = CWindowWnd::__ControlProc;
		wc.hInstance = CPaintManagerUI::GetInstance();
		wc.lpszClassName = lpClassName;
		ATOM ret = ::RegisterClassExW(&wc);
#ifndef UNICODE
		delete []lpClassName;
		delete []lpSuperClassName;
#endif
		ASSERT(ret!=NULL || ::GetLastError()==ERROR_CLASS_ALREADY_EXISTS);
		return ret != NULL || ::GetLastError() == ERROR_CLASS_ALREADY_EXISTS;
	}
	else {
		// Get the class information from an existing
		// window so we can subclass it later on...
		WNDCLASSEX wc = { 0 };
		wc.cbSize = sizeof(WNDCLASSEX);
		if( !::GetClassInfoEx(NULL, GetSuperClassName(), &wc) ) {
			if( !::GetClassInfoEx(CPaintManagerUI::GetInstance(), GetSuperClassName(), &wc) ) {
				ASSERT(!"Unable to locate window class");
				return NULL;
			}
		}
		m_OldWndProc = wc.lpfnWndProc;
		wc.lpfnWndProc = CWindowWnd::__ControlProc;
		wc.hInstance = CPaintManagerUI::GetInstance();
		wc.lpszClassName = GetWindowClassName();
		ATOM ret = ::RegisterClassEx(&wc);
		ASSERT(ret!=NULL || ::GetLastError()==ERROR_CLASS_ALREADY_EXISTS);
		return ret != NULL || ::GetLastError() == ERROR_CLASS_ALREADY_EXISTS;
	}
}

LRESULT CALLBACK CWindowWnd::__WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    CWindowWnd* pThis = NULL;
    if( uMsg == WM_NCCREATE ) {
        LPCREATESTRUCT lpcs = reinterpret_cast<LPCREATESTRUCT>(lParam);
        pThis = static_cast<CWindowWnd*>(lpcs->lpCreateParams);
        pThis->m_hWnd = hWnd;
        ::SetWindowLongPtr(hWnd, GWLP_USERDATA, reinterpret_cast<LPARAM>(pThis));
    } 
    else {
        pThis = reinterpret_cast<CWindowWnd*>(::GetWindowLongPtr(hWnd, GWLP_USERDATA));
        if( uMsg == WM_NCDESTROY && pThis != NULL ) {
            LRESULT lRes = ::CallWindowProc(pThis->m_OldWndProc, hWnd, uMsg, wParam, lParam);
            ::SetWindowLongPtr(pThis->m_hWnd, GWLP_USERDATA, 0L);
            if( pThis->m_bSubclassed ) pThis->Unsubclass();
            pThis->m_hWnd = NULL;
            pThis->OnFinalMessage(hWnd);
            return lRes;
        }
    }
    // 诊断：确认 WM_TOUCH 到底投递给了哪个窗口（弹框 / owner / 其它）。
    if( uMsg == WM_TOUCH ) TraceTouchArrival(hWnd, wParam, lParam);

    if( pThis != NULL ) {
        return pThis->HandleMessage(uMsg, wParam, lParam);
    } 
    else {
        return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
    }
}

LRESULT CALLBACK CWindowWnd::__ControlProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    CWindowWnd* pThis = NULL;
    if( uMsg == WM_NCCREATE ) {
        LPCREATESTRUCT lpcs = reinterpret_cast<LPCREATESTRUCT>(lParam);
        pThis = static_cast<CWindowWnd*>(lpcs->lpCreateParams);
        ::SetProp(hWnd, _T("WndX"), (HANDLE) pThis);
        pThis->m_hWnd = hWnd;
    } 
    else {
        pThis = reinterpret_cast<CWindowWnd*>(::GetProp(hWnd, _T("WndX")));
        if( uMsg == WM_NCDESTROY && pThis != NULL ) {
            LRESULT lRes = ::CallWindowProc(pThis->m_OldWndProc, hWnd, uMsg, wParam, lParam);
            if( pThis->m_bSubclassed ) pThis->Unsubclass();
            ::SetProp(hWnd, _T("WndX"), NULL);
            pThis->m_hWnd = NULL;
            pThis->OnFinalMessage(hWnd);
            return lRes;
        }
    }
    if( pThis != NULL ) {
        return pThis->HandleMessage(uMsg, wParam, lParam);
    } 
    else {
        return ::DefWindowProc(hWnd, uMsg, wParam, lParam);
    }
}

LRESULT CWindowWnd::SendMessage(UINT uMsg, WPARAM wParam /*= 0*/, LPARAM lParam /*= 0*/)
{
    ASSERT(::IsWindow(m_hWnd));
    return ::SendMessage(m_hWnd, uMsg, wParam, lParam);
} 

LRESULT CWindowWnd::PostMessage(UINT uMsg, WPARAM wParam /*= 0*/, LPARAM lParam /*= 0*/)
{
    ASSERT(::IsWindow(m_hWnd));
    return ::PostMessage(m_hWnd, uMsg, wParam, lParam);
}

void CWindowWnd::ResizeClient(int cx /*= -1*/, int cy /*= -1*/)
{
    ASSERT(::IsWindow(m_hWnd));
    RECT rc = { 0 };
    if( !::GetClientRect(m_hWnd, &rc) ) return;
    if( cx != -1 ) rc.right = cx;
    if( cy != -1 ) rc.bottom = cy;
    if( !::AdjustWindowRectEx(&rc, GetWindowStyle(m_hWnd), (!(GetWindowStyle(m_hWnd) & WS_CHILD) && (::GetMenu(m_hWnd) != NULL)), GetWindowExStyle(m_hWnd)) ) return;
    ::SetWindowPos(m_hWnd, NULL, 0, 0, rc.right - rc.left, rc.bottom - rc.top, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
}

LRESULT CWindowWnd::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    return ::CallWindowProc(m_OldWndProc, m_hWnd, uMsg, wParam, lParam);
}

void CWindowWnd::OnFinalMessage(HWND /*hWnd*/)
{
}

} // namespace DuiLib