CWindowImpl

template <class T, class TBase /* = CWindow */, class TWinTraits /* = CControlWinTraits */>

class ATL_NO_VTABLE CWindowImpl :

public CWindowImplBaseT< TBase, TWinTraits >

{

public:

DECLARE_WND_CLASS(NULL)

static LPCTSTR GetWndCaption()

{

return NULL;

}

HWND Create(

_In_opt_ HWND hWndParent,

_In_ _U_RECT rect = NULL,

_In_opt_z_ LPCTSTR szWindowName = NULL,

_In_ DWORD dwStyle = 0,

_In_ DWORD dwExStyle = 0,

_In_ _U_MENUorID MenuOrID = 0U,

_In_opt_ 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);

// set caption

if (szWindowName == NULL)

szWindowName = T::GetWndCaption();

return CWindowImplBaseT< TBase, TWinTraits >::Create(hWndParent, rect, szWindowName,

dwStyle, dwExStyle, MenuOrID, atom, lpCreateParam);

}

};

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

// 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; \

}

typedef _ATL_WNDCLASSINFOA CWndClassInfoA;

typedef _ATL_WNDCLASSINFOW CWndClassInfoW;

#ifdef UNICODE

#define CWndClassInfo CWndClassInfoW

#else

#define CWndClassInfo CWndClassInfoA

#endif

struct _ATL_WNDCLASSINFOW

{

WNDCLASSEXW m_wc;

LPCWSTR m_lpszOrigName;

WNDPROC pWndProc;

LPCWSTR m_lpszCursorID;

BOOL m_bSystemCursor;

ATOM m_atom;

WCHAR m_szAutoName[5+sizeof(void*)*CHAR_BIT];

ATOM Register(_In_ WNDPROC* p)

{

return AtlWinModuleRegisterWndClassInfoW(&_AtlWinModule, &_AtlBaseModule, this, p);

}

};

typedef struct tagWNDCLASSEXW {

UINT cbSize;

/* Win 3.x */

UINT style;

WNDPROC lpfnWndProc;

int cbClsExtra;

int cbWndExtra;

HINSTANCE hInstance;

HICON hIcon;

HCURSOR hCursor;

HBRUSH hbrBackground;

LPCWSTR lpszMenuName;

LPCWSTR lpszClassName;

/* Win 4.0 */

HICON hIconSm;

} WNDCLASSEXW, *PWNDCLASSEXW, NEAR *NPWNDCLASSEXW, FAR *LPWNDCLASSEXW;

template <class TBase, class TWinTraits>

HWND CWindowImplBaseT< TBase, TWinTraits >::Create(HWND hWndParent, _U_RECT rect, LPCTSTR szWindowName,

DWORD dwStyle, DWORD dwExStyle, _U_MENUorID MenuOrID, ATOM atom, LPVOID lpCreateParam)

{

BOOL result;

ATLASSUME(m_hWnd == NULL);

// Allocate the thunk structure here, where we can fail gracefully.

result = m_thunk.Init(NULL,NULL);

if (result == FALSE) {

SetLastError(ERROR_OUTOFMEMORY);

return NULL;

}

if(atom == 0)

return NULL;

_AtlWinModule.AddCreateWndData(&m_thunk.cd, this);

if(MenuOrID.m_hMenu == NULL && (dwStyle & WS_CHILD))

MenuOrID.m_hMenu = (HMENU)(UINT_PTR)this;

if(rect.m_lpRect == NULL)

rect.m_lpRect = &TBase::rcDefault;

HWND hWnd = ::CreateWindowEx(dwExStyle, MAKEINTATOM(atom), szWindowName,

dwStyle, rect.m_lpRect->left, rect.m_lpRect->top, rect.m_lpRect->right - rect.m_lpRect->left,

rect.m_lpRect->bottom - rect.m_lpRect->top, hWndParent, MenuOrID.m_hMenu,

_AtlBaseModule.GetModuleInstance(), lpCreateParam);

ATLASSUME(m_hWnd == hWnd);

return hWnd;

}