WindowsXP/Source/XPSP1/NT/public/sdk/inc/atl21/atlwin21.h
2024-08-03 16:30:48 +02:00

894 lines
26 KiB
C++

// This is a part of the Active Template Library.
// Copyright (C) 1996-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Active Template Library Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Active Template Library product.
#ifndef __ATLWIN21_H__
#define __ATLWIN21_H__
#ifndef __cplusplus
#error ATL requires C++ compilation (use a .cpp suffix)
#endif
#ifdef __ATLWIN_H__
#error atlwin21.h should be included instead of atlwin.h
#endif
#if (_ATL_VER < 0x0200) && (_ATL_VER >= 0x0300)
#error atlwin21.h should be used only with ATL 2.0/2.1
#endif //(_ATL_VER < 0x0200) && (_ATL_VER >= 0x0300)
// Redefine class names and include old atlwin.h
#define CWindow CWindowOld
#define _WndProcThunk _WndProcThunkOld
#define _FuncDesc _FuncDescOld
#define CWndProcThunk CWndProcThunkOld
#define _stdcallthunk _stdcallthunkOld
#define CDynamicStdCallThunk CDynamicStdCallThunkOld
#define CStdCallThunk CStdCallThunkOld
#define CWindowImplBase CWindowImplBaseOld
#define CWindowImpl CWindowImplOld
#define CDialogImplBase CDialogImplBaseOld
#define CDialogImpl CDialogImplOld
#include <atlwin.h>
#undef CWindow
#undef _FuncDesc
#undef _WndProcThunk
#undef CWndProcThunk
#undef _stdcallthunk
#undef CDynamicStdCallThunk
#undef CStdCallThunk
#undef CWindowImplBase
#undef CWindowImpl
#undef CDialogImplBase
#undef CDialogImpl
#ifndef ATLASSERT
#define ATLASSERT(expr) _ASSERTE(expr)
#endif
#ifndef ATLTRACE2
#define ATLTRACE2(cat, lev, msg) ATLTRACE(msg)
#endif
namespace ATL
{
#pragma pack(push, _ATL_PACKING)
/////////////////////////////////////////////////////////////////////////////
// CWindow - client side for a Windows window
class CWindow : public CWindowOld
{
public:
static RECT rcDefault;
// Construction and creation
CWindow(HWND hWnd = NULL)
{
m_hWnd = hWnd;
}
CWindow& operator=(HWND hWnd)
{
m_hWnd = hWnd;
return *this;
}
HWND Create(LPCTSTR lpstrWndClass, HWND hWndParent, RECT& rcPos, LPCTSTR szWindowName = NULL,
DWORD dwStyle = 0, DWORD dwExStyle = 0,
UINT nID = 0, LPVOID lpCreateParam = NULL)
{
m_hWnd = ::CreateWindowEx(dwExStyle, lpstrWndClass, szWindowName,
dwStyle, rcPos.left, rcPos.top, rcPos.right - rcPos.left,
rcPos.bottom - rcPos.top, hWndParent, (HMENU)(UINT_PTR)nID,
_Module.GetModuleInstance(), lpCreateParam);
return m_hWnd;
}
HWND Create(LPCTSTR lpstrWndClass, HWND hWndParent, LPRECT lpRect = NULL, LPCTSTR szWindowName = NULL,
DWORD dwStyle = 0, DWORD dwExStyle = 0,
HMENU hMenu = NULL, LPVOID lpCreateParam = NULL)
{
if(lpRect == NULL)
lpRect = &rcDefault;
m_hWnd = ::CreateWindowEx(dwExStyle, lpstrWndClass, szWindowName,
dwStyle, lpRect->left, lpRect->top, lpRect->right - lpRect->left,
lpRect->bottom - lpRect->top, hWndParent, hMenu,
_Module.GetModuleInstance(), lpCreateParam);
return m_hWnd;
}
// Attributes
operator HWND() const { return m_hWnd; }
static LPCTSTR GetWndClassName()
{
return NULL;
}
// Operations
// support for C style macros
static LRESULT SendMessage(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
ATLASSERT(::IsWindow(hWnd));
return ::SendMessage(hWnd, message, wParam, lParam);
}
// this one is here just so it's not hidden
LRESULT SendMessage(UINT message, WPARAM wParam = 0, LPARAM lParam = 0)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::SendMessage(m_hWnd, message, wParam, lParam);
}
BOOL GetScrollInfo(int nBar, LPSCROLLINFO lpScrollInfo)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::GetScrollInfo(m_hWnd, nBar, lpScrollInfo);
}
BOOL SetScrollInfo(int nBar, LPSCROLLINFO lpScrollInfo, BOOL bRedraw = TRUE)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::SetScrollInfo(m_hWnd, nBar, lpScrollInfo, bRedraw);
}
BOOL IsDialogMessage(LPMSG lpMsg)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::IsDialogMessage(m_hWnd, lpMsg);
}
void NextDlgCtrl() const
{
ATLASSERT(::IsWindow(m_hWnd));
::SendMessage(m_hWnd, WM_NEXTDLGCTL, 0, 0L);
}
void PrevDlgCtrl() const
{
ATLASSERT(::IsWindow(m_hWnd));
::SendMessage(m_hWnd, WM_NEXTDLGCTL, 1, 0L);
}
void GotoDlgCtrl(HWND hWndCtrl) const
{
ATLASSERT(::IsWindow(m_hWnd));
::SendMessage(m_hWnd, WM_NEXTDLGCTL, (WPARAM)hWndCtrl, 1L);
}
BOOL ResizeClient(int nWidth, int nHeight, BOOL bRedraw = TRUE)
{
ATLASSERT(::IsWindow(m_hWnd));
RECT rcWnd;
if(!GetClientRect(&rcWnd))
return FALSE;
if(nWidth != -1)
rcWnd.right = nWidth;
if(nHeight != -1)
rcWnd.bottom = nHeight;
if(!::AdjustWindowRectEx(&rcWnd, GetStyle(), (!(GetStyle() & WS_CHILD) && (GetMenu() != NULL)), GetExStyle()))
return FALSE;
UINT uFlags = SWP_NOZORDER | SWP_NOMOVE;
if(!bRedraw)
uFlags |= SWP_NOREDRAW;
return SetWindowPos(NULL, 0, 0, rcWnd.right - rcWnd.left, rcWnd.bottom - rcWnd.top, uFlags);
}
#ifndef UNDER_CE
int GetWindowRgn(HRGN hRgn)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::GetWindowRgn(m_hWnd, hRgn);
}
int SetWindowRgn(HRGN hRgn, BOOL bRedraw = FALSE)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::SetWindowRgn(m_hWnd, hRgn, bRedraw);
}
HDWP DeferWindowPos(HDWP hWinPosInfo, HWND hWndInsertAfter, int x, int y, int cx, int cy, UINT uFlags)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::DeferWindowPos(hWinPosInfo, m_hWnd, hWndInsertAfter, x, y, cx, cy, uFlags);
}
#endif //!UNDER_CE
DWORD GetWindowThreadID()
{
ATLASSERT(::IsWindow(m_hWnd));
return ::GetWindowThreadProcessId(m_hWnd, NULL);
}
DWORD GetWindowProcessID()
{
ATLASSERT(::IsWindow(m_hWnd));
DWORD dwProcessID;
::GetWindowThreadProcessId(m_hWnd, &dwProcessID);
return dwProcessID;
}
BOOL IsWindow()
{
return ::IsWindow(m_hWnd);
}
#ifndef UNDER_CE
BOOL IsWindowUnicode()
{
ATLASSERT(::IsWindow(m_hWnd));
return ::IsWindowUnicode(m_hWnd);
}
BOOL ShowWindowAsync(int nCmdShow)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::ShowWindowAsync(m_hWnd, nCmdShow);
}
#endif //!UNDER_CE
};
_declspec(selectany) RECT CWindow::rcDefault = { CW_USEDEFAULT, CW_USEDEFAULT, 0, 0 };
/////////////////////////////////////////////////////////////////////////////
// Thunks for __stdcall member functions
#if defined(_M_IX86)
#pragma pack(push,1)
struct _stdcallthunk
{
DWORD m_mov; // mov dword ptr [esp+0x4], pThis (esp+0x4 is hWnd)
DWORD m_this; //
BYTE m_jmp; // jmp WndProc
DWORD m_relproc; // relative jmp
void Init(DWORD_PTR proc, void* pThis)
{
m_mov = 0x042444C7; //C7 44 24 0C
m_this = PtrToUlong(pThis);
m_jmp = 0xe9;
m_relproc = DWORD((INT_PTR)proc - ((INT_PTR)this+sizeof(_stdcallthunk)));
// write block from data cache and
// flush from instruction cache
FlushInstructionCache(GetCurrentProcess(), this, sizeof(_stdcallthunk));
}
};
#pragma pack(pop)
#elif defined (_M_AMD64)
#pragma pack(push,2)
struct _stdcallthunk
{
USHORT RcxMov; // mov rcx, pThis
ULONG64 RcxImm; //
USHORT RaxMov; // mov rax, target
ULONG64 RaxImm; //
USHORT RaxJmp; // jmp target
void Init(DWORD_PTR proc, void *pThis)
{
RcxMov = 0xb948; // mov rcx, pThis
RcxImm = (ULONG64)pThis; //
RaxMov = 0xb848; // mov rax, target
RaxImm = (ULONG64)proc; //
RaxJmp = 0xe0ff; // jmp rax
FlushInstructionCache(GetCurrentProcess(), this, sizeof(_stdcallthunk));
}
};
#pragma pack(pop)
#elif defined(_M_IA64)
#pragma pack(push,8)
extern "C" LRESULT CALLBACK _WndProcThunkProc( HWND, UINT, WPARAM, LPARAM );
struct _FuncDesc
{
void* pfn;
void* gp;
};
struct _stdcallthunk
{
_FuncDesc m_funcdesc;
void* m_pFunc;
void* m_pThis;
void Init(DWORD_PTR proc, void* pThis)
{
const _FuncDesc* pThunkProc;
pThunkProc = reinterpret_cast< const _FuncDesc* >( _WndProcThunkProc );
m_funcdesc.pfn = pThunkProc->pfn;
m_funcdesc.gp = &m_pFunc;
m_pFunc = reinterpret_cast< void* >( proc );
m_pThis = pThis;
::FlushInstructionCache( GetCurrentProcess(), this, sizeof( _stdcallthunk ) );
}
};
#pragma pack(pop)
#else
#error Only AMD64, IA64, and X86 supported
#endif
class CDynamicStdCallThunk
{
public:
_stdcallthunk *pThunk;
CDynamicStdCallThunk()
{
pThunk = NULL;
}
~CDynamicStdCallThunk()
{
if (pThunk)
HeapFree(GetProcessHeap(), 0, pThunk);
}
void Init(DWORD_PTR proc, void *pThis)
{
if (!pThunk) {
pThunk = static_cast<_stdcallthunk *>(HeapAlloc(GetProcessHeap(),
HEAP_GENERATE_EXCEPTIONS, sizeof(_stdcallthunk)));
}
ATLASSERT(pThunk);
pThunk->Init(proc, pThis);
}
};
typedef CDynamicStdCallThunk CStdCallThunk;
/////////////////////////////////////////////////////////////////////////////
// WindowProc thunks
class CWndProcThunk
{
public:
_AtlCreateWndData cd;
CStdCallThunk thunk;
void Init(WNDPROC proc, void* pThis)
{
thunk.Init((DWORD_PTR)proc, pThis);
}
};
/////////////////////////////////////////////////////////////////////////////
// New message map macros
// Empty message map macro
#define DECLARE_EMPTY_MSG_MAP() \
public: \
BOOL ProcessWindowMessage(HWND, UINT, WPARAM, LPARAM, LRESULT&, DWORD) \
{ \
return FALSE; \
}
// Message reflection macros
#define REFLECT_NOTIFICATIONS() \
{ \
bHandled = TRUE; \
lResult = ReflectNotifications(uMsg, wParam, lParam, bHandled); \
if(bHandled) \
return TRUE; \
}
#define DEFAULT_REFLECTION_HANDLER() \
if(DefaultReflectionHandler(hWnd, uMsg, wParam, lParam, lResult)) \
return TRUE;
/////////////////////////////////////////////////////////////////////////////
// CWinTraits - Defines various default values for a window
template <DWORD t_dwStyle = 0, DWORD t_dwExStyle = 0>
class CWinTraits
{
public:
static DWORD GetWndStyle(DWORD dwStyle)
{
return dwStyle == 0 ? t_dwStyle : dwStyle;
}
static DWORD GetWndExStyle(DWORD dwExStyle)
{
return dwExStyle == 0 ? t_dwExStyle : dwExStyle;
}
};
typedef CWinTraits<WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, 0> CControlWinTraits;
#ifndef UNDER_CE
typedef CWinTraits<WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, WS_EX_APPWINDOW | WS_EX_WINDOWEDGE> CFrameWinTraits;
#else
typedef CWinTraits<WS_OVERLAPPED | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_CAPTION | WS_SYSMENU | WS_BORDER, WS_EX_WINDOWEDGE> CFrameWinTraits;
#endif //!UNDER_CE
typedef CWinTraits<WS_OVERLAPPEDWINDOW | WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS, WS_EX_MDICHILD> CMDIChildWinTraits;
typedef CWinTraits<0, 0> CNullTraits;
template <DWORD t_dwStyle = 0, DWORD t_dwExStyle = 0, class TWinTraits = CControlWinTraits>
class CWinTraitsOR
{
public:
static DWORD GetWndStyle(DWORD dwStyle)
{
return dwStyle | t_dwStyle | TWinTraits::GetWndStyle(dwStyle);
}
static DWORD GetWndExStyle(DWORD dwExStyle)
{
return dwExStyle | t_dwExStyle | TWinTraits::GetWndExStyle(dwExStyle);
}
};
/////////////////////////////////////////////////////////////////////////////
// CWindowImpl - Implements a window
template <class TBase = CWindow>
class ATL_NO_VTABLE CWindowImplRoot : public TBase, public CMessageMap
{
public:
CWndProcThunk m_thunk;
// Destructor
~CWindowImplRoot()
{
ATLASSERT(m_hWnd == NULL); // should be cleared in WindowProc
}
// Message reflection support
LRESULT ReflectNotifications(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
static BOOL DefaultReflectionHandler(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult);
};
template <class TBase>
LRESULT CWindowImplRoot< TBase >::ReflectNotifications(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
HWND hWndChild = NULL;
switch(uMsg)
{
case WM_COMMAND:
if(lParam != NULL) // not from a menu
hWndChild = (HWND)lParam;
break;
case WM_NOTIFY:
hWndChild = ((LPNMHDR)lParam)->hwndFrom;
break;
#ifndef UNDER_CE
case WM_PARENTNOTIFY:
switch(LOWORD(wParam))
{
case WM_CREATE:
case WM_DESTROY:
hWndChild = (HWND)lParam;
break;
default:
hWndChild = GetDlgItem(HIWORD(wParam));
break;
}
break;
#endif //!UNDER_CE
case WM_DRAWITEM:
if(wParam) // not from a menu
hWndChild = ((LPDRAWITEMSTRUCT)lParam)->hwndItem;
break;
case WM_MEASUREITEM:
if(wParam) // not from a menu
hWndChild = GetDlgItem(((LPMEASUREITEMSTRUCT)lParam)->CtlID);
break;
case WM_COMPAREITEM:
if(wParam) // not from a menu
hWndChild = GetDlgItem(((LPCOMPAREITEMSTRUCT)lParam)->CtlID);
break;
case WM_DELETEITEM:
if(wParam) // not from a menu
hWndChild = GetDlgItem(((LPDELETEITEMSTRUCT)lParam)->CtlID);
break;
case WM_VKEYTOITEM:
case WM_CHARTOITEM:
case WM_HSCROLL:
case WM_VSCROLL:
hWndChild = (HWND)lParam;
break;
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLORSCROLLBAR:
case WM_CTLCOLORSTATIC:
hWndChild = (HWND)lParam;
break;
default:
break;
}
if(hWndChild == NULL)
{
bHandled = FALSE;
return 1;
}
ATLASSERT(::IsWindow(hWndChild));
return ::SendMessage(hWndChild, OCM__BASE + uMsg, wParam, lParam);
}
template <class TBase>
BOOL CWindowImplRoot< TBase >::DefaultReflectionHandler(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult)
{
switch(uMsg)
{
case OCM_COMMAND:
case OCM_NOTIFY:
#ifndef UNDER_CE
case OCM_PARENTNOTIFY:
#endif //!UNDER_CE
case OCM_DRAWITEM:
case OCM_MEASUREITEM:
case OCM_COMPAREITEM:
case OCM_DELETEITEM:
case OCM_VKEYTOITEM:
case OCM_CHARTOITEM:
case OCM_HSCROLL:
case OCM_VSCROLL:
case OCM_CTLCOLORBTN:
case OCM_CTLCOLORDLG:
case OCM_CTLCOLOREDIT:
case OCM_CTLCOLORLISTBOX:
case OCM_CTLCOLORMSGBOX:
case OCM_CTLCOLORSCROLLBAR:
case OCM_CTLCOLORSTATIC:
lResult = ::DefWindowProc(hWnd, uMsg - OCM__BASE, wParam, lParam);
return TRUE;
default:
break;
}
return FALSE;
}
template <class TBase = CWindow, class TWinTraits = CControlWinTraits>
class ATL_NO_VTABLE CWindowImplBaseT : public CWindowImplRoot< TBase >
{
public:
WNDPROC m_pfnSuperWindowProc;
CWindowImplBaseT() : m_pfnSuperWindowProc(::DefWindowProc)
{}
static DWORD GetWndStyle(DWORD dwStyle)
{
return TWinTraits::GetWndStyle(dwStyle);
}
static DWORD GetWndExStyle(DWORD dwExStyle)
{
return TWinTraits::GetWndExStyle(dwExStyle);
}
virtual WNDPROC GetWindowProc()
{
return WindowProc;
}
static LRESULT CALLBACK StartWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
HWND Create(HWND hWndParent, RECT& rcPos, LPCTSTR szWindowName,
DWORD dwStyle, DWORD dwExStyle, UINT nID, ATOM atom, LPVOID lpCreateParam = NULL);
BOOL DestroyWindow()
{
ATLASSERT(::IsWindow(m_hWnd));
return ::DestroyWindow(m_hWnd);
}
BOOL SubclassWindow(HWND hWnd);
HWND UnsubclassWindow(BOOL bForce = FALSE);
LRESULT DefWindowProc(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
#ifdef STRICT
return ::CallWindowProc(m_pfnSuperWindowProc, m_hWnd, uMsg, wParam, lParam);
#else
return ::CallWindowProc((FARPROC)m_pfnSuperWindowProc, m_hWnd, uMsg, wParam, lParam);
#endif
}
virtual void OnFinalMessage(HWND /*hWnd*/)
{
// override to do something, if needed
}
};
typedef CWindowImplBaseT<CWindow> CWindowImplBase;
template <class TBase, class TWinTraits>
LRESULT CALLBACK CWindowImplBaseT< TBase, TWinTraits >::StartWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
CWindowImplBaseT< TBase, TWinTraits >* pThis = (CWindowImplBaseT< TBase, TWinTraits >*)_Module.ExtractCreateWndData();
ATLASSERT(pThis != NULL);
pThis->m_hWnd = hWnd;
pThis->m_thunk.Init(pThis->GetWindowProc(), pThis);
WNDPROC pProc = (WNDPROC)(pThis->m_thunk.thunk.pThunk);
WNDPROC pOldProc = (WNDPROC)::SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)pProc);
#ifdef _DEBUG
// check if somebody has subclassed us already since we discard it
if(pOldProc != StartWindowProc)
ATLTRACE(_T("ATL: Subclassing through a hook discarded.\n"));
#else
pOldProc; // avoid unused warning
#endif
return pProc(hWnd, uMsg, wParam, lParam);
}
template <class TBase, class TWinTraits>
LRESULT CALLBACK CWindowImplBaseT< TBase, TWinTraits >::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
CWindowImplBaseT< TBase, TWinTraits >* pThis = (CWindowImplBaseT< TBase, TWinTraits >*)hWnd;
LRESULT lRes;
if(pThis->ProcessWindowMessage(pThis->m_hWnd, uMsg, wParam, lParam, lRes, 0) == FALSE)
{
#ifndef UNDER_CE
if(uMsg != WM_NCDESTROY)
#else // CE specific
if(uMsg != WM_DESTROY)
#endif //!UNDER_CE
lRes = pThis->DefWindowProc(uMsg, wParam, lParam);
else
{
// unsubclass, if needed
LONG_PTR pfnWndProc = ::GetWindowLongPtr(pThis->m_hWnd, GWLP_WNDPROC);
lRes = pThis->DefWindowProc(uMsg, wParam, lParam);
if(pThis->m_pfnSuperWindowProc != ::DefWindowProc && ::GetWindowLongPtr(pThis->m_hWnd, GWLP_WNDPROC) == pfnWndProc)
::SetWindowLongPtr(pThis->m_hWnd, GWLP_WNDPROC, (LONG_PTR)pThis->m_pfnSuperWindowProc);
// clear out window handle
HWND hWnd = pThis->m_hWnd;
pThis->m_hWnd = NULL;
// clean up after window is destroyed
pThis->OnFinalMessage(hWnd);
}
}
return lRes;
}
template <class TBase, class TWinTraits>
HWND CWindowImplBaseT< TBase, TWinTraits >::Create(HWND hWndParent, RECT& rcPos, LPCTSTR szWindowName,
DWORD dwStyle, DWORD dwExStyle, UINT nID, ATOM atom, LPVOID lpCreateParam)
{
static LONG s_nNextChildID = 1;
ATLASSERT(m_hWnd == NULL);
if(atom == 0)
return NULL;
_Module.AddCreateWndData(&m_thunk.cd, this);
if(nID == 0 && (dwStyle & WS_CHILD))
{
#ifdef _WIN64
nID = InterlockedIncrement( &s_nNextChildID );
nID |= 0x80000000;
#else
nID = (UINT)this;
#endif
}
HWND hWnd = ::CreateWindowEx(dwExStyle, (LPCTSTR)MAKELONG(atom, 0), szWindowName,
dwStyle, rcPos.left, rcPos.top, rcPos.right - rcPos.left,
rcPos.bottom - rcPos.top, hWndParent, (HMENU)nID,
_Module.GetModuleInstance(), lpCreateParam);
ATLASSERT(m_hWnd == hWnd);
return hWnd;
}
template <class TBase, class TWinTraits>
BOOL CWindowImplBaseT< TBase, TWinTraits >::SubclassWindow(HWND hWnd)
{
ATLASSERT(m_hWnd == NULL);
ATLASSERT(::IsWindow(hWnd));
m_thunk.Init(GetWindowProc(), this);
WNDPROC pProc = (WNDPROC)(m_thunk.thunk.pThunk);
WNDPROC pfnWndProc = (WNDPROC)::SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)pProc);
if(pfnWndProc == NULL)
return FALSE;
m_pfnSuperWindowProc = pfnWndProc;
m_hWnd = hWnd;
return TRUE;
}
// Use only if you want to subclass before window is destroyed,
// WindowProc will automatically subclass when window goes away
template <class TBase, class TWinTraits>
HWND CWindowImplBaseT< TBase, TWinTraits >::UnsubclassWindow(BOOL bForce /*= FALSE*/)
{
ATLASSERT(m_hWnd != NULL);
WNDPROC pOurProc = (WNDPROC)(m_thunk.thunk.pThunk);
WNDPROC pActiveProc = (WNDPROC)::GetWindowLongPtr(m_hWnd, GWLP_WNDPROC);
HWND hWnd = NULL;
if (bForce || pOurProc == pActiveProc)
{
if(!::SetWindowLongPtr(m_hWnd, GWLP_WNDPROC, (LONG_PTR)m_pfnSuperWindowProc))
return NULL;
m_pfnSuperWindowProc = ::DefWindowProc;
hWnd = m_hWnd;
m_hWnd = NULL;
}
return hWnd;
}
template <class T, class TBase = CWindow, class TWinTraits = CControlWinTraits>
class ATL_NO_VTABLE CWindowImpl : public CWindowImplBaseT< TBase, TWinTraits >
{
public:
DECLARE_WND_CLASS(NULL)
HWND Create(HWND hWndParent, RECT& rcPos, LPCTSTR szWindowName = NULL,
DWORD dwStyle = 0, DWORD dwExStyle = 0,
UINT nID = 0, LPVOID lpCreateParam = NULL)
{
if (T::GetWndClassInfo().m_lpszOrigName == NULL)
T::GetWndClassInfo().m_lpszOrigName = GetWndClassName();
ATOM atom = T::GetWndClassInfo().Register(&m_pfnSuperWindowProc);
dwStyle = T::GetWndStyle(dwStyle);
dwExStyle = T::GetWndExStyle(dwExStyle);
return CWindowImplBaseT< TBase, TWinTraits >::Create(hWndParent, rcPos, szWindowName,
dwStyle, dwExStyle, nID, atom, lpCreateParam);
}
};
/////////////////////////////////////////////////////////////////////////////
// CDialogImpl - Implements a dialog box
template <class TBase = CWindow>
class ATL_NO_VTABLE CDialogImplBaseT : public CWindowImplRoot< TBase >
{
public:
virtual WNDPROC GetDialogProc()
{
return DialogProc;
}
static LRESULT CALLBACK StartDialogProc(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam);
static LRESULT CALLBACK DialogProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
BOOL MapDialogRect(LPRECT lpRect)
{
ATLASSERT(::IsWindow(m_hWnd));
return ::MapDialogRect(m_hWnd, lpRect);
}
virtual void OnFinalMessage(HWND /*hWnd*/)
{
// override to do something, if needed
}
// has no meaning for a dialog, but needed for handlers that use it
LRESULT DefWindowProc()
{
return 0;
}
};
template <class TBase>
LRESULT CALLBACK CDialogImplBaseT< TBase >::StartDialogProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
CDialogImplBaseT< TBase >* pThis = (CDialogImplBaseT< TBase >*)_Module.ExtractCreateWndData();
ATLASSERT(pThis != NULL);
pThis->m_hWnd = hWnd;
pThis->m_thunk.Init(pThis->GetDialogProc(), pThis);
WNDPROC pProc = (WNDPROC)(pThis->m_thunk.thunk.pThunk);
WNDPROC pOldProc = (WNDPROC)::SetWindowLongPtr(hWnd, DWLP_DLGPROC, (LONG_PTR)pProc);
#ifdef _DEBUG
// check if somebody has subclassed us already since we discard it
if(pOldProc != StartDialogProc)
ATLTRACE(_T("ATL: Subclassing through a hook discarded.\n"));
#endif
return pProc(hWnd, uMsg, wParam, lParam);
}
template <class TBase>
LRESULT CALLBACK CDialogImplBaseT< TBase >::DialogProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
CDialogImplBaseT< TBase >* pThis = (CDialogImplBaseT< TBase >*)hWnd;
LRESULT lRes;
if(pThis->ProcessWindowMessage(pThis->m_hWnd, uMsg, wParam, lParam, lRes, 0))
{
switch (uMsg)
{
case WM_COMPAREITEM:
case WM_VKEYTOITEM:
case WM_CHARTOITEM:
case WM_INITDIALOG:
case WM_QUERYDRAGICON:
case WM_CTLCOLORMSGBOX:
case WM_CTLCOLOREDIT:
case WM_CTLCOLORLISTBOX:
case WM_CTLCOLORBTN:
case WM_CTLCOLORDLG:
case WM_CTLCOLORSCROLLBAR:
case WM_CTLCOLORSTATIC:
return lRes;
break;
}
::SetWindowLongPtr(pThis->m_hWnd, DWLP_MSGRESULT, lRes);
return TRUE;
}
#ifndef UNDER_CE
if(uMsg == WM_NCDESTROY)
#else // CE specific
if(uMsg == WM_DESTROY)
#endif //!UNDER_CE
{
// clear out window handle
HWND hWnd = pThis->m_hWnd;
pThis->m_hWnd = NULL;
// clean up after dialog is destroyed
pThis->OnFinalMessage(hWnd);
}
return FALSE;
}
typedef CDialogImplBaseT<CWindow> CDialogImplBase;
template <class T, class TBase = CWindow>
class ATL_NO_VTABLE CDialogImpl : public CDialogImplBaseT< TBase >
{
public:
#ifdef _DEBUG
bool m_bModal;
CDialogImpl() : m_bModal(false) { }
#endif //_DEBUG
// modal dialogs
INT_PTR DoModal(HWND hWndParent = ::GetActiveWindow(), LPARAM dwInitParam = NULL)
{
ATLASSERT(m_hWnd == NULL);
_Module.AddCreateWndData(&m_thunk.cd, (CDialogImplBaseT< TBase >*)this);
#ifdef _DEBUG
m_bModal = true; // set to true for _DEBUG only
#endif // _DEBUG
return ::DialogBoxParam(_Module.GetResourceInstance(), MAKEINTRESOURCE(T::IDD),
hWndParent, (DLGPROC)T::StartDialogProc, dwInitParam);
}
BOOL EndDialog(int nRetCode)
{
ATLASSERT(::IsWindow(m_hWnd));
#ifdef _DEBUG
ATLASSERT(m_bModal); // must be a modal dialog
#endif // _DEBUG
return ::EndDialog(m_hWnd, nRetCode);
}
// modeless dialogs
HWND Create(HWND hWndParent, LPARAM dwInitParam = NULL)
{
ATLASSERT(m_hWnd == NULL);
_Module.AddCreateWndData(&m_thunk.cd, (CDialogImplBaseT< TBase >*)this);
#ifdef _DEBUG
m_bModal = false; // set to false for _DEBUG only
#endif // _DEBUG
HWND hWnd = ::CreateDialogParam(_Module.GetResourceInstance(), MAKEINTRESOURCE(T::IDD),
hWndParent, (DLGPROC)T::StartDialogProc, dwInitParam);
ATLASSERT(m_hWnd == hWnd);
return hWnd;
}
// for CComControl
HWND Create(HWND hWndParent, RECT&, LPARAM dwInitParam = NULL)
{
return Create(hWndParent, dwInitParam);
}
BOOL DestroyWindow()
{
ATLASSERT(::IsWindow(m_hWnd));
#ifdef _DEBUG
ATLASSERT(!m_bModal); // must not be a modal dialog
#endif // _DEBUG
return ::DestroyWindow(m_hWnd);
}
};
}; //namespace ATL
#endif // __ATLWIN21_H__