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/*
* Window classes functions
*
* Copyright 1993, 1996, 2003 Alexandre Julliard
* Copyright 1998 Juergen Schmied (jsch)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "winerror.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winnls.h"
#include "win.h"
#include "user_private.h"
#include "controls.h"
#include "wine/server.h"
#include "wine/list.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(class);
#define MAX_ATOM_LEN 255 /* from dlls/kernel32/atom.c */
static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
static inline const char *debugstr_us( const UNICODE_STRING *us )
{
if (!us) return "<null>";
return debugstr_wn( us->Buffer, us->Length / sizeof(WCHAR) );
}
/***********************************************************************
* get_int_atom_value
*/
ATOM get_int_atom_value( UNICODE_STRING *name )
{
const WCHAR *ptr = name->Buffer;
const WCHAR *end = ptr + name->Length / sizeof(WCHAR);
UINT ret = 0;
if (IS_INTRESOURCE(ptr)) return LOWORD(ptr);
if (*ptr++ != '#') return 0;
while (ptr < end)
{
if (*ptr < '0' || *ptr > '9') return 0;
ret = ret * 10 + *ptr++ - '0';
if (ret > 0xffff) return 0;
}
return ret;
}
/***********************************************************************
* is_comctl32_class
*/
static BOOL is_comctl32_class( const WCHAR *name )
{
static const WCHAR *classesW[] =
{
L"ComboBoxEx32",
L"msctls_hotkey32",
L"msctls_progress32",
L"msctls_statusbar32",
L"msctls_trackbar32",
L"msctls_updown32",
L"NativeFontCtl",
L"ReBarWindow32",
L"SysAnimate32",
L"SysDateTimePick32",
L"SysHeader32",
L"SysIPAddress32",
L"SysLink",
L"SysListView32",
L"SysMonthCal32",
L"SysPager",
L"SysTabControl32",
L"SysTreeView32",
L"ToolbarWindow32",
L"tooltips_class32",
};
int min = 0, max = ARRAY_SIZE( classesW ) - 1;
while (min <= max)
{
int res, pos = (min + max) / 2;
if (!(res = wcsicmp( name, classesW[pos] ))) return TRUE;
if (res < 0) max = pos - 1;
else min = pos + 1;
}
return FALSE;
}
static BOOL is_builtin_class( const WCHAR *name )
{
static const WCHAR *classesW[] =
{
L"IME",
L"MDIClient",
L"Scrollbar",
};
int min = 0, max = ARRAY_SIZE( classesW ) - 1;
while (min <= max)
{
int res, pos = (min + max) / 2;
if (!(res = wcsicmp( name, classesW[pos] ))) return TRUE;
if (res < 0) max = pos - 1;
else min = pos + 1;
}
return FALSE;
}
static void init_class_name( UNICODE_STRING *str, const WCHAR *name )
{
if (IS_INTRESOURCE( name ))
{
str->Buffer = (WCHAR *)name;
str->Length = str->MaximumLength = 0;
}
else RtlInitUnicodeString( str, name );
}
static BOOL alloc_menu_nameA( struct client_menu_name *ret, const char *menu_name )
{
if (!IS_INTRESOURCE(menu_name))
{
DWORD lenA = strlen( menu_name ) + 1;
DWORD lenW = MultiByteToWideChar( CP_ACP, 0, menu_name, lenA, NULL, 0 );
ret->nameW = HeapAlloc( GetProcessHeap(), 0, lenA + lenW * sizeof(WCHAR) );
if (!ret->nameW) return FALSE;
ret->nameA = (char *)(ret->nameW + lenW);
MultiByteToWideChar( CP_ACP, 0, menu_name, lenA, ret->nameW, lenW );
memcpy( ret->nameA, menu_name, lenA );
}
else
{
ret->nameW = (WCHAR *)menu_name;
ret->nameA = (char *)menu_name;
}
return TRUE;
}
static BOOL alloc_menu_nameW( struct client_menu_name *ret, const WCHAR *menu_name )
{
if (!IS_INTRESOURCE(menu_name))
{
DWORD lenW = lstrlenW( menu_name ) + 1;
DWORD lenA = WideCharToMultiByte( CP_ACP, 0, menu_name, lenW, NULL, 0, NULL, NULL );
ret->nameW = HeapAlloc( GetProcessHeap(), 0, lenA + lenW * sizeof(WCHAR) );
if (!ret->nameW) return FALSE;
ret->nameA = (char *)(ret->nameW + lenW);
memcpy( ret->nameW, menu_name, lenW * sizeof(WCHAR) );
WideCharToMultiByte( CP_ACP, 0, menu_name, lenW, ret->nameA, lenA, NULL, NULL );
}
else
{
ret->nameW = (WCHAR *)menu_name;
ret->nameA = (char *)menu_name;
}
return TRUE;
}
static void free_menu_name( struct client_menu_name *name )
{
if (!IS_INTRESOURCE(name->nameW)) HeapFree( GetProcessHeap(), 0, name->nameW );
}
static ULONG_PTR set_menu_nameW( HWND hwnd, INT offset, ULONG_PTR newval )
{
struct client_menu_name menu_name;
if (!alloc_menu_nameW( &menu_name, (const WCHAR *)newval )) return 0;
NtUserSetClassLongPtr( hwnd, offset, (ULONG_PTR)&menu_name, FALSE );
free_menu_name( &menu_name );
return 0;
}
static ULONG_PTR set_menu_nameA( HWND hwnd, INT offset, ULONG_PTR newval )
{
struct client_menu_name menu_name;
if (!alloc_menu_nameA( &menu_name, (const char *)newval )) return 0;
NtUserSetClassLongPtr( hwnd, offset, (ULONG_PTR)&menu_name, TRUE );
free_menu_name( &menu_name );
return 0;
}
static void get_versioned_name( const WCHAR *name, UNICODE_STRING *ret, UNICODE_STRING *version, HMODULE *reg_module )
{
ACTCTX_SECTION_KEYED_DATA data;
struct wndclass_redirect_data
{
ULONG size;
DWORD res;
ULONG name_len;
ULONG name_offset;
ULONG module_len;
ULONG module_offset;
} *wndclass;
const WCHAR *module, *ptr;
UNICODE_STRING name_us;
HMODULE hmod;
UINT offset = 0;
if (reg_module) *reg_module = 0;
if (version) version->Length = 0;
if (IS_INTRESOURCE( name ) || is_comctl32_class( name ) || is_builtin_class( name ))
{
init_class_name( ret, name );
return;
}
data.cbSize = sizeof(data);
RtlInitUnicodeString(&name_us, name);
if (RtlFindActivationContextSectionString( 0, NULL, ACTIVATION_CONTEXT_SECTION_WINDOW_CLASS_REDIRECTION,
&name_us, &data ))
{
init_class_name( ret, name );
return;
}
wndclass = (struct wndclass_redirect_data *)data.lpData;
offset = wndclass->name_len / sizeof(WCHAR) - lstrlenW(name);
module = (const WCHAR *)((BYTE *)data.lpSectionBase + wndclass->module_offset);
if (!(hmod = GetModuleHandleW( module )))
hmod = LoadLibraryW( module );
/* Combined name is used to register versioned class name. Base name part will match exactly
original class name and won't be reused from context data. */
ptr = (const WCHAR *)((BYTE *)wndclass + wndclass->name_offset);
if (version)
{
WCHAR *combined = version->Buffer;
memcpy( combined, ptr, offset * sizeof(WCHAR) );
lstrcpyW( &combined[offset], name );
version->Length = offset * sizeof(WCHAR);
ptr = combined;
}
if (reg_module) *reg_module = hmod;
init_class_name( ret, ptr );
}
/***********************************************************************
* register_builtin
*
* Register a builtin control class.
* This allows having both ANSI and Unicode winprocs for the same class.
*/
static void register_builtin( const struct builtin_class_descr *descr )
{
UNICODE_STRING name, version = { .Length = 0 };
struct client_menu_name menu_name = { 0 };
WNDCLASSEXW class = {
.cbSize = sizeof(class),
.hInstance = user32_module,
.style = descr->style,
.cbWndExtra = descr->extra,
.hbrBackground = descr->brush,
.lpfnWndProc = BUILTIN_WINPROC( descr->proc ),
};
if (descr->cursor) class.hCursor = LoadCursorA( 0, (LPSTR)descr->cursor );
init_class_name( &name, descr->name );
if (!NtUserRegisterClassExWOW( &class, &name, &version, &menu_name, 1, 0, NULL ) && class.hCursor)
DestroyCursor( class.hCursor );
}
static void load_uxtheme(void)
{
BOOL (WINAPI * pIsThemeActive)(void);
HMODULE uxtheme;
uxtheme = LoadLibraryA("uxtheme.dll");
if (uxtheme)
{
pIsThemeActive = (void *)GetProcAddress(uxtheme, "IsThemeActive");
if (!pIsThemeActive || !pIsThemeActive())
FreeLibrary(uxtheme);
}
}
/***********************************************************************
* register_builtins
*/
static BOOL WINAPI register_builtins( INIT_ONCE *once, void *param, void **context )
{
register_builtin( &BUTTON_builtin_class );
register_builtin( &COMBO_builtin_class );
register_builtin( &COMBOLBOX_builtin_class );
register_builtin( &DIALOG_builtin_class );
register_builtin( &EDIT_builtin_class );
register_builtin( &ICONTITLE_builtin_class );
register_builtin( &LISTBOX_builtin_class );
register_builtin( &MDICLIENT_builtin_class );
register_builtin( &MENU_builtin_class );
register_builtin( &SCROLL_builtin_class );
register_builtin( &STATIC_builtin_class );
register_builtin( &IME_builtin_class );
/* Load uxtheme.dll so that standard scrollbars and dialogs are hooked for theming support */
load_uxtheme();
return TRUE;
}
/***********************************************************************
* register_builtin_classes
*/
void register_builtin_classes(void)
{
InitOnceExecuteOnce( &init_once, register_builtins, NULL, NULL );
}
/***********************************************************************
* register_desktop_class
*/
void register_desktop_class(void)
{
register_builtin( &DESKTOP_builtin_class );
register_builtin( &MESSAGE_builtin_class );
}
/***********************************************************************
* RegisterClassA (USER32.@)
*
* Register a window class.
*
* RETURNS
* >0: Unique identifier
* 0: Failure
*/
ATOM WINAPI RegisterClassA( const WNDCLASSA* wc ) /* [in] Address of structure with class data */
{
WNDCLASSEXA wcex;
wcex.cbSize = sizeof(wcex);
wcex.style = wc->style;
wcex.lpfnWndProc = wc->lpfnWndProc;
wcex.cbClsExtra = wc->cbClsExtra;
wcex.cbWndExtra = wc->cbWndExtra;
wcex.hInstance = wc->hInstance;
wcex.hIcon = wc->hIcon;
wcex.hCursor = wc->hCursor;
wcex.hbrBackground = wc->hbrBackground;
wcex.lpszMenuName = wc->lpszMenuName;
wcex.lpszClassName = wc->lpszClassName;
wcex.hIconSm = 0;
return RegisterClassExA( &wcex );
}
/***********************************************************************
* RegisterClassW (USER32.@)
*
* See RegisterClassA.
*/
ATOM WINAPI RegisterClassW( const WNDCLASSW* wc )
{
WNDCLASSEXW wcex;
wcex.cbSize = sizeof(wcex);
wcex.style = wc->style;
wcex.lpfnWndProc = wc->lpfnWndProc;
wcex.cbClsExtra = wc->cbClsExtra;
wcex.cbWndExtra = wc->cbWndExtra;
wcex.hInstance = wc->hInstance;
wcex.hIcon = wc->hIcon;
wcex.hCursor = wc->hCursor;
wcex.hbrBackground = wc->hbrBackground;
wcex.lpszMenuName = wc->lpszMenuName;
wcex.lpszClassName = wc->lpszClassName;
wcex.hIconSm = 0;
return RegisterClassExW( &wcex );
}
/***********************************************************************
* RegisterClassExA (USER32.@)
*/
ATOM WINAPI RegisterClassExA( const WNDCLASSEXA* wc )
{
WCHAR nameW[MAX_ATOM_LEN + 1], combined[MAX_ATOM_LEN + 1];
struct client_menu_name menu_name;
UNICODE_STRING name, version;
ATOM atom;
version.Buffer = combined;
version.MaximumLength = sizeof(combined);
if (!IS_INTRESOURCE(wc->lpszClassName))
{
if (!MultiByteToWideChar( CP_ACP, 0, wc->lpszClassName, -1, nameW, MAX_ATOM_LEN + 1 )) return 0;
get_versioned_name( nameW, &name, &version, FALSE );
}
else
{
init_class_name( &name, (const WCHAR *)wc->lpszClassName );
version.Length = 0;
}
if (!alloc_menu_nameA( &menu_name, wc->lpszMenuName )) return 0;
atom = NtUserRegisterClassExWOW( (WNDCLASSEXW *)wc, &name, &version, &menu_name, 0, 1, NULL );
if (!atom) free_menu_name( &menu_name );
return atom;
}
/***********************************************************************
* RegisterClassExW (USER32.@)
*/
ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
{
WCHAR combined[MAX_ATOM_LEN + 1];
struct client_menu_name menu_name;
UNICODE_STRING name, version;
ATOM atom;
version.Buffer = combined;
version.MaximumLength = sizeof(combined);
get_versioned_name( wc->lpszClassName, &name, &version, FALSE );
if (!alloc_menu_nameW( &menu_name, wc->lpszMenuName )) return 0;
atom = NtUserRegisterClassExWOW( wc, &name, &version, &menu_name, 0, 0, NULL );
if (!atom) free_menu_name( &menu_name );
return atom;
}
/***********************************************************************
* UnregisterClassA (USER32.@)
*/
BOOL WINAPI UnregisterClassA( LPCSTR className, HINSTANCE hInstance )
{
if (!IS_INTRESOURCE(className))
{
WCHAR name[MAX_ATOM_LEN + 1];
if (!MultiByteToWideChar( CP_ACP, 0, className, -1, name, MAX_ATOM_LEN + 1 ))
return FALSE;
return UnregisterClassW( name, hInstance );
}
return UnregisterClassW( (LPCWSTR)className, hInstance );
}
/***********************************************************************
* UnregisterClassW (USER32.@)
*/
BOOL WINAPI UnregisterClassW( LPCWSTR className, HINSTANCE hInstance )
{
struct client_menu_name menu_name;
UNICODE_STRING name;
BOOL ret;
get_versioned_name( className, &name, NULL, FALSE );
ret = NtUserUnregisterClass( &name, hInstance, &menu_name );
if (ret) free_menu_name( &menu_name );
return ret;
}
/***********************************************************************
* GetClassWord (USER32.@)
*/
WORD WINAPI GetClassWord( HWND hwnd, INT offset )
{
return NtUserCallHwndParam( hwnd, offset, NtUserGetClassWord );
}
/***********************************************************************
* GetClassLongW (USER32.@)
*/
DWORD WINAPI GetClassLongW( HWND hwnd, INT offset )
{
return NtUserCallHwndParam( hwnd, offset, NtUserGetClassLongW );
}
/***********************************************************************
* GetClassLongA (USER32.@)
*/
DWORD WINAPI GetClassLongA( HWND hwnd, INT offset )
{
return NtUserCallHwndParam( hwnd, offset, NtUserGetClassLongA );
}
/***********************************************************************
* SetClassLongW (USER32.@)
*/
DWORD WINAPI SetClassLongW( HWND hwnd, INT offset, LONG newval )
{
if (offset == GCLP_MENUNAME) return set_menu_nameW( hwnd, offset, newval );
return NtUserSetClassLong( hwnd, offset, newval, FALSE );
}
/***********************************************************************
* SetClassLongA (USER32.@)
*/
DWORD WINAPI SetClassLongA( HWND hwnd, INT offset, LONG newval )
{
if (offset == GCLP_MENUNAME) return set_menu_nameA( hwnd, offset, newval );
return NtUserSetClassLong( hwnd, offset, newval, TRUE );
}
/***********************************************************************
* GetClassNameA (USER32.@)
*/
INT WINAPI GetClassNameA( HWND hwnd, LPSTR buffer, INT count )
{
WCHAR tmpbuf[MAX_ATOM_LEN + 1];
DWORD len;
if (count <= 0) return 0;
if (!GetClassNameW( hwnd, tmpbuf, ARRAY_SIZE( tmpbuf ))) return 0;
RtlUnicodeToMultiByteN( buffer, count - 1, &len, tmpbuf, lstrlenW(tmpbuf) * sizeof(WCHAR) );
buffer[len] = 0;
return len;
}
/***********************************************************************
* GetClassNameW (USER32.@)
*/
INT WINAPI GetClassNameW( HWND hwnd, LPWSTR buffer, INT count )
{
UNICODE_STRING name = { .Buffer = buffer, .MaximumLength = count * sizeof(WCHAR) };
return NtUserGetClassName( hwnd, FALSE, &name );
}
/***********************************************************************
* RealGetWindowClassA (USER32.@)
*/
UINT WINAPI RealGetWindowClassA( HWND hwnd, LPSTR buffer, UINT count )
{
return GetClassNameA( hwnd, buffer, count );
}
/***********************************************************************
* RealGetWindowClassW (USER32.@)
*/
UINT WINAPI RealGetWindowClassW( HWND hwnd, LPWSTR buffer, UINT count )
{
return GetClassNameW( hwnd, buffer, count );
}
/***********************************************************************
* GetClassInfoA (USER32.@)
*/
BOOL WINAPI GetClassInfoA( HINSTANCE hInstance, LPCSTR name, WNDCLASSA *wc )
{
WNDCLASSEXA wcex;
UINT ret = GetClassInfoExA( hInstance, name, &wcex );
if (ret)
{
wc->style = wcex.style;
wc->lpfnWndProc = wcex.lpfnWndProc;
wc->cbClsExtra = wcex.cbClsExtra;
wc->cbWndExtra = wcex.cbWndExtra;
wc->hInstance = wcex.hInstance;
wc->hIcon = wcex.hIcon;
wc->hCursor = wcex.hCursor;
wc->hbrBackground = wcex.hbrBackground;
wc->lpszMenuName = wcex.lpszMenuName;
wc->lpszClassName = wcex.lpszClassName;
}
return ret;
}
/***********************************************************************
* GetClassInfoW (USER32.@)
*/
BOOL WINAPI GetClassInfoW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSW *wc )
{
WNDCLASSEXW wcex;
UINT ret = GetClassInfoExW( hInstance, name, &wcex );
if (ret)
{
wc->style = wcex.style;
wc->lpfnWndProc = wcex.lpfnWndProc;
wc->cbClsExtra = wcex.cbClsExtra;
wc->cbWndExtra = wcex.cbWndExtra;
wc->hInstance = wcex.hInstance;
wc->hIcon = wcex.hIcon;
wc->hCursor = wcex.hCursor;
wc->hbrBackground = wcex.hbrBackground;
wc->lpszMenuName = wcex.lpszMenuName;
wc->lpszClassName = wcex.lpszClassName;
}
return ret;
}
ATOM get_class_info( HINSTANCE instance, const WCHAR *class_name, WNDCLASSEXW *info,
UNICODE_STRING *name_str, BOOL ansi )
{
UNICODE_STRING name;
HMODULE module;
ATOM atom;
get_versioned_name( class_name, &name, NULL, &module );
if (!name_str && !instance) instance = user32_module;
while (!(atom = NtUserGetClassInfoEx( instance, &name, info, NULL, ansi )))
{
if (module)
{
BOOL (WINAPI *pRegisterClassNameW)( const WCHAR *class );
pRegisterClassNameW = (void *)GetProcAddress( module, "RegisterClassNameW" );
module = NULL;
if (pRegisterClassNameW)
{
TRACE( "registering %s\n", debugstr_us(&name) );
pRegisterClassNameW( class_name );
continue;
}
}
if (IS_INTRESOURCE( class_name )) break;
if (!is_comctl32_class( class_name )) break;
if (GetModuleHandleW( L"comctl32.dll" )) break;
if (!LoadLibraryW( L"comctl32.dll" )) break;
TRACE( "%s retrying after loading comctl32\n", debugstr_w(class_name) );
}
if (!atom)
{
TRACE( "%s %p -> not found\n", debugstr_w(class_name), instance );
SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
return 0;
}
if (name_str) *name_str = name;
return atom;
}
/***********************************************************************
* GetClassInfoExA (USER32.@)
*/
BOOL WINAPI GetClassInfoExA( HINSTANCE hInstance, LPCSTR name, WNDCLASSEXA *wc )
{
ATOM atom;
TRACE("%p %s %p\n", hInstance, debugstr_a(name), wc);
if (!wc)
{
SetLastError( ERROR_NOACCESS );
return FALSE;
}
if (!IS_INTRESOURCE(name))
{
WCHAR nameW[MAX_ATOM_LEN + 1];
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, nameW, ARRAY_SIZE( nameW )))
return FALSE;
atom = get_class_info( hInstance, nameW, (WNDCLASSEXW *)wc, NULL, TRUE );
}
else atom = get_class_info( hInstance, (const WCHAR *)name, (WNDCLASSEXW *)wc, NULL, TRUE );
if (atom) wc->lpszClassName = name;
/* We must return the atom of the class here instead of just TRUE. */
return atom;
}
/***********************************************************************
* GetClassInfoExW (USER32.@)
*/
BOOL WINAPI GetClassInfoExW( HINSTANCE hInstance, LPCWSTR name, WNDCLASSEXW *wc )
{
ATOM atom;
TRACE("%p %s %p\n", hInstance, debugstr_w(name), wc);
if (!wc)
{
SetLastError( ERROR_NOACCESS );
return FALSE;
}
atom = get_class_info( hInstance, name, wc, NULL, FALSE );
if (atom) wc->lpszClassName = name;
/* We must return the atom of the class here instead of just TRUE. */
return atom;
}
#if 0 /* toolhelp is in kernel, so this cannot work */
/***********************************************************************
* ClassFirst (TOOLHELP.69)
*/
BOOL16 WINAPI ClassFirst16( CLASSENTRY *pClassEntry )
{
TRACE("%p\n",pClassEntry);
pClassEntry->wNext = 1;
return ClassNext16( pClassEntry );
}
/***********************************************************************
* ClassNext (TOOLHELP.70)
*/
BOOL16 WINAPI ClassNext16( CLASSENTRY *pClassEntry )
{
int i;
CLASS *class = firstClass;
TRACE("%p\n",pClassEntry);
if (!pClassEntry->wNext) return FALSE;
for (i = 1; (i < pClassEntry->wNext) && class; i++) class = class->next;
if (!class)
{
pClassEntry->wNext = 0;
return FALSE;
}
pClassEntry->hInst = class->hInstance;
pClassEntry->wNext++;
GlobalGetAtomNameA( class->atomName, pClassEntry->szClassName,
sizeof(pClassEntry->szClassName) );
return TRUE;
}
#endif
/* 64bit versions */
#ifdef GetClassLongPtrA
#undef GetClassLongPtrA
#endif
#ifdef GetClassLongPtrW
#undef GetClassLongPtrW
#endif
#ifdef SetClassLongPtrA
#undef SetClassLongPtrA
#endif
#ifdef SetClassLongPtrW
#undef SetClassLongPtrW
#endif
/***********************************************************************
* GetClassLongPtrA (USER32.@)
*/
ULONG_PTR WINAPI GetClassLongPtrA( HWND hwnd, INT offset )
{
return NtUserCallHwndParam( hwnd, offset, NtUserGetClassLongPtrA );
}
/***********************************************************************
* GetClassLongPtrW (USER32.@)
*/
ULONG_PTR WINAPI GetClassLongPtrW( HWND hwnd, INT offset )
{
return NtUserCallHwndParam( hwnd, offset, NtUserGetClassLongPtrW );
}
/***********************************************************************
* SetClassLongPtrW (USER32.@)
*/
ULONG_PTR WINAPI SetClassLongPtrW( HWND hwnd, INT offset, LONG_PTR newval )
{
if (offset == GCLP_MENUNAME) return set_menu_nameW( hwnd, offset, newval );
return NtUserSetClassLongPtr( hwnd, offset, newval, FALSE );
}
/***********************************************************************
* SetClassLongPtrA (USER32.@)
*/
ULONG_PTR WINAPI SetClassLongPtrA( HWND hwnd, INT offset, LONG_PTR newval )
{
if (offset == GCLP_MENUNAME) return set_menu_nameA( hwnd, offset, newval );
return NtUserSetClassLongPtr( hwnd, offset, newval, TRUE );
}
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