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wine/dlls/user/class.c

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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 "config.h"
#include "wine/port.h"
#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 "wine/winuser16.h"
#include "wine/unicode.h"
#include "win.h"
#include "user_private.h"
#include "controls.h"
#include "winproc.h"
#include "wine/server.h"
#include "wine/list.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(class);
typedef struct tagCLASS
{
struct list entry; /* Entry in class list */
UINT style; /* Class style */
BOOL local; /* Local class? */
WNDPROC winproc; /* Window procedure */
INT cbClsExtra; /* Class extra bytes */
INT cbWndExtra; /* Window extra bytes */
LPWSTR menuName; /* Default menu name (Unicode followed by ASCII) */
HINSTANCE hInstance; /* Module that created the task */
HICON hIcon; /* Default icon */
HICON hIconSm; /* Default small icon */
HCURSOR hCursor; /* Default cursor */
HBRUSH hbrBackground; /* Default background */
ATOM atomName; /* Name of the class */
} CLASS;
static struct list class_list = LIST_INIT( class_list );
#define CLASS_OTHER_PROCESS ((CLASS *)1)
#define MAX_ATOM_LEN 255 /* from dlls/kernel32/atom.c */
/***********************************************************************
* get_class_ptr
*/
static CLASS *get_class_ptr( HWND hwnd, BOOL write_access )
{
WND *ptr = WIN_GetPtr( hwnd );
if (ptr)
{
if (ptr != WND_OTHER_PROCESS && ptr != WND_DESKTOP) return ptr->class;
if (!write_access) return CLASS_OTHER_PROCESS;
/* modifying classes in other processes is not allowed */
if (ptr == WND_DESKTOP || IsWindow( hwnd ))
{
SetLastError( ERROR_ACCESS_DENIED );
return NULL;
}
}
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return NULL;
}
/***********************************************************************
* release_class_ptr
*/
inline static void release_class_ptr( CLASS *ptr )
{
USER_Unlock();
}
/***********************************************************************
* set_server_info
*
* Set class info with the wine server.
*/
static BOOL set_server_info( HWND hwnd, INT offset, LONG_PTR newval, UINT size )
{
BOOL ret;
SERVER_START_REQ( set_class_info )
{
req->window = hwnd;
req->extra_offset = -1;
switch(offset)
{
case GCW_ATOM:
req->flags = SET_CLASS_ATOM;
req->atom = newval;
case GCL_STYLE:
req->flags = SET_CLASS_STYLE;
req->style = newval;
break;
case GCL_CBWNDEXTRA:
req->flags = SET_CLASS_WINEXTRA;
req->win_extra = newval;
break;
case GCLP_HMODULE:
req->flags = SET_CLASS_INSTANCE;
req->instance = (void *)newval;
break;
default:
assert( offset >= 0 );
req->flags = SET_CLASS_EXTRA;
req->extra_offset = offset;
req->extra_size = size;
if ( size == sizeof(LONG) )
{
LONG newlong = newval;
memcpy( &req->extra_value, &newlong, sizeof(LONG) );
}
else
memcpy( &req->extra_value, &newval, sizeof(LONG_PTR) );
break;
}
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* CLASS_GetMenuNameA
*
* Get the menu name as a ASCII string.
*/
inline static LPSTR CLASS_GetMenuNameA( CLASS *classPtr )
{
if (!HIWORD(classPtr->menuName)) return (LPSTR)classPtr->menuName;
return (LPSTR)(classPtr->menuName + strlenW(classPtr->menuName) + 1);
}
/***********************************************************************
* CLASS_GetMenuNameW
*
* Get the menu name as a Unicode string.
*/
inline static LPWSTR CLASS_GetMenuNameW( CLASS *classPtr )
{
return classPtr->menuName;
}
/***********************************************************************
* CLASS_SetMenuNameA
*
* Set the menu name in a class structure by copying the string.
*/
static void CLASS_SetMenuNameA( CLASS *classPtr, LPCSTR name )
{
if (HIWORD(classPtr->menuName)) HeapFree( GetProcessHeap(), 0, classPtr->menuName );
if (HIWORD(name))
{
DWORD lenA = strlen(name) + 1;
DWORD lenW = MultiByteToWideChar( CP_ACP, 0, name, lenA, NULL, 0 );
classPtr->menuName = HeapAlloc( GetProcessHeap(), 0, lenA + lenW*sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, name, lenA, classPtr->menuName, lenW );
memcpy( classPtr->menuName + lenW, name, lenA );
}
else classPtr->menuName = (LPWSTR)name;
}
/***********************************************************************
* CLASS_SetMenuNameW
*
* Set the menu name in a class structure by copying the string.
*/
static void CLASS_SetMenuNameW( CLASS *classPtr, LPCWSTR name )
{
if (HIWORD(classPtr->menuName)) HeapFree( GetProcessHeap(), 0, classPtr->menuName );
if (HIWORD(name))
{
DWORD lenW = strlenW(name) + 1;
DWORD lenA = WideCharToMultiByte( CP_ACP, 0, name, lenW, NULL, 0, NULL, NULL );
classPtr->menuName = HeapAlloc( GetProcessHeap(), 0, lenA + lenW*sizeof(WCHAR) );
memcpy( classPtr->menuName, name, lenW*sizeof(WCHAR) );
WideCharToMultiByte( CP_ACP, 0, name, lenW,
(char *)(classPtr->menuName + lenW), lenA, NULL, NULL );
}
else classPtr->menuName = (LPWSTR)name;
}
/***********************************************************************
* CLASS_FreeClass
*
* Free a class structure.
*/
static void CLASS_FreeClass( CLASS *classPtr )
{
TRACE("%p\n", classPtr);
USER_Lock();
list_remove( &classPtr->entry );
if (classPtr->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
DeleteObject( classPtr->hbrBackground );
HeapFree( GetProcessHeap(), 0, classPtr->menuName );
HeapFree( GetProcessHeap(), 0, classPtr );
USER_Unlock();
}
/***********************************************************************
* CLASS_FreeModuleClasses
*/
void CLASS_FreeModuleClasses( HMODULE16 hModule )
{
struct list *ptr, *next;
TRACE("0x%08x\n", hModule);
USER_Lock();
for (ptr = list_head( &class_list ); ptr; ptr = next)
{
CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
next = list_next( &class_list, ptr );
if (class->hInstance == HINSTANCE_32(hModule))
{
BOOL ret;
SERVER_START_REQ( destroy_class )
{
req->atom = class->atomName;
req->instance = class->hInstance;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
if (ret) CLASS_FreeClass( class );
}
}
USER_Unlock();
}
/***********************************************************************
* CLASS_FindClassByAtom
*
* Return a pointer to the class.
* hinstance has been normalized by the caller.
*/
static CLASS *CLASS_FindClassByAtom( ATOM atom, HINSTANCE hinstance )
{
struct list *ptr;
USER_Lock();
LIST_FOR_EACH( ptr, &class_list )
{
CLASS *class = LIST_ENTRY( ptr, CLASS, entry );
if (class->atomName != atom) continue;
if (!hinstance || !class->local || class->hInstance == hinstance)
{
TRACE("0x%04x %p -> %p\n", atom, hinstance, class);
return class;
}
}
USER_Unlock();
TRACE("0x%04x %p -> not found\n", atom, hinstance);
return NULL;
}
/***********************************************************************
* CLASS_RegisterClass
*
* The real RegisterClass() functionality.
* The atom is deleted no matter what.
*/
static CLASS *CLASS_RegisterClass( ATOM atom, HINSTANCE hInstance, BOOL local,
DWORD style, INT classExtra, INT winExtra )
{
CLASS *classPtr;
BOOL ret;
TRACE("atom=0x%x hinst=%p style=0x%x clExtr=0x%x winExtr=0x%x\n",
atom, hInstance, style, classExtra, winExtra );
/* Fix the extra bytes value */
if (classExtra < 0 || winExtra < 0)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
if (classExtra > 40) /* Extra bytes are limited to 40 in Win32 */
WARN("Class extra bytes %d is > 40\n", classExtra);
if (winExtra > 40) /* Extra bytes are limited to 40 in Win32 */
WARN("Win extra bytes %d is > 40\n", winExtra );
classPtr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CLASS) + classExtra );
if (!classPtr)
{
GlobalDeleteAtom( atom );
return NULL;
}
SERVER_START_REQ( create_class )
{
req->local = local;
req->atom = atom;
req->style = style;
req->instance = hInstance;
req->extra = classExtra;
req->win_extra = winExtra;
req->client_ptr = classPtr;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
GlobalDeleteAtom( atom ); /* the server increased the atom ref count */
if (!ret)
{
HeapFree( GetProcessHeap(), 0, classPtr );
return NULL;
}
classPtr->style = style;
classPtr->local = local;
classPtr->cbWndExtra = winExtra;
classPtr->cbClsExtra = classExtra;
classPtr->hInstance = hInstance;
classPtr->atomName = atom;
/* Other non-null values must be set by caller */
USER_Lock();
if (local) list_add_head( &class_list, &classPtr->entry );
else list_add_tail( &class_list, &classPtr->entry );
return classPtr;
}
/***********************************************************************
* register_builtin
*
* Register a builtin control class.
* This allows having both ASCII and Unicode winprocs for the same class.
*/
static CLASS *register_builtin( const struct builtin_class_descr *descr )
{
ATOM atom;
CLASS *classPtr;
if (!(atom = GlobalAddAtomA( descr->name ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, user32_module, FALSE,
descr->style, 0, descr->extra ))) return 0;
classPtr->hCursor = LoadCursorA( 0, (LPSTR)descr->cursor );
classPtr->hbrBackground = descr->brush;
classPtr->winproc = WINPROC_AllocProc( descr->procA, descr->procW );
release_class_ptr( classPtr );
return classPtr;
}
/***********************************************************************
* CLASS_RegisterBuiltinClasses
*/
void CLASS_RegisterBuiltinClasses(void)
{
extern const struct builtin_class_descr BUTTON_builtin_class;
extern const struct builtin_class_descr COMBO_builtin_class;
extern const struct builtin_class_descr COMBOLBOX_builtin_class;
extern const struct builtin_class_descr DIALOG_builtin_class;
extern const struct builtin_class_descr DESKTOP_builtin_class;
extern const struct builtin_class_descr EDIT_builtin_class;
extern const struct builtin_class_descr ICONTITLE_builtin_class;
extern const struct builtin_class_descr LISTBOX_builtin_class;
extern const struct builtin_class_descr MDICLIENT_builtin_class;
extern const struct builtin_class_descr MENU_builtin_class;
extern const struct builtin_class_descr SCROLL_builtin_class;
extern const struct builtin_class_descr STATIC_builtin_class;
register_builtin( &DESKTOP_builtin_class );
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 );
}
/***********************************************************************
* CLASS_AddWindow
*
* Add a new window using this class, and set the necessary
* information inside the window structure.
*/
void CLASS_AddWindow( CLASS *class, WND *win, BOOL unicode )
{
win->class = class;
win->clsStyle = class->style;
win->winproc = class->winproc;
if (WINPROC_IsUnicode( win->winproc, unicode )) win->flags |= WIN_ISUNICODE;
}
/***********************************************************************
* 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 )
{
ATOM atom;
CLASS *classPtr;
HINSTANCE instance;
if (wc->hInstance == user32_module)
{
/* we can't register a class for user32 */
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (!(instance = wc->hInstance)) instance = GetModuleHandleW( NULL );
if (!(atom = GlobalAddAtomA( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, instance, !(wc->style & CS_GLOBALCLASS),
wc->style, wc->cbClsExtra, wc->cbWndExtra )))
return 0;
TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
atom, wc->lpfnWndProc, instance, wc->hbrBackground,
wc->style, wc->cbClsExtra, wc->cbWndExtra, classPtr );
classPtr->hIcon = wc->hIcon;
classPtr->hIconSm = wc->hIconSm;
classPtr->hCursor = wc->hCursor;
classPtr->hbrBackground = wc->hbrBackground;
classPtr->winproc = WINPROC_AllocProc( wc->lpfnWndProc, NULL );
CLASS_SetMenuNameA( classPtr, wc->lpszMenuName );
release_class_ptr( classPtr );
return atom;
}
/***********************************************************************
* RegisterClassExW (USER32.@)
*/
ATOM WINAPI RegisterClassExW( const WNDCLASSEXW* wc )
{
ATOM atom;
CLASS *classPtr;
HINSTANCE instance;
if (wc->hInstance == user32_module)
{
/* we can't register a class for user32 */
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (!(instance = wc->hInstance)) instance = GetModuleHandleW( NULL );
if (!(atom = GlobalAddAtomW( wc->lpszClassName ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, instance, !(wc->style & CS_GLOBALCLASS),
wc->style, wc->cbClsExtra, wc->cbWndExtra )))
return 0;
TRACE("atom=%04x wndproc=%p hinst=%p bg=%p style=%08x clsExt=%d winExt=%d class=%p\n",
atom, wc->lpfnWndProc, instance, wc->hbrBackground,
wc->style, wc->cbClsExtra, wc->cbWndExtra, classPtr );
classPtr->hIcon = wc->hIcon;
classPtr->hIconSm = wc->hIconSm;
classPtr->hCursor = wc->hCursor;
classPtr->hbrBackground = wc->hbrBackground;
classPtr->winproc = WINPROC_AllocProc( NULL, wc->lpfnWndProc );
CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
release_class_ptr( classPtr );
return atom;
}
/***********************************************************************
* UnregisterClassA (USER32.@)
*/
BOOL WINAPI UnregisterClassA( LPCSTR className, HINSTANCE hInstance )
{
ATOM atom = HIWORD(className) ? GlobalFindAtomA( className ) : LOWORD(className);
return UnregisterClassW( MAKEINTATOMW(atom), hInstance );
}
/***********************************************************************
* UnregisterClassW (USER32.@)
*/
BOOL WINAPI UnregisterClassW( LPCWSTR className, HINSTANCE hInstance )
{
CLASS *classPtr = NULL;
ATOM atom = HIWORD(className) ? GlobalFindAtomW( className ) : LOWORD(className);
TRACE("%s %p %x\n",debugstr_w(className), hInstance, atom);
if (!atom)
{
SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
return FALSE;
}
SERVER_START_REQ( destroy_class )
{
req->atom = atom;
req->instance = hInstance;
if (!wine_server_call_err( req )) classPtr = reply->client_ptr;
}
SERVER_END_REQ;
if (classPtr) CLASS_FreeClass( classPtr );
return (classPtr != NULL);
}
/***********************************************************************
* GetClassWord (USER32.@)
*/
WORD WINAPI GetClassWord( HWND hwnd, INT offset )
{
CLASS *class;
WORD retvalue = 0;
if (offset < 0) return GetClassLongA( hwnd, offset );
TRACE("%p %x\n",hwnd, offset);
if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
if (class == CLASS_OTHER_PROCESS)
{
SERVER_START_REQ( set_class_info )
{
req->window = hwnd;
req->flags = 0;
req->extra_offset = offset;
req->extra_size = sizeof(retvalue);
if (!wine_server_call_err( req ))
memcpy( &retvalue, &reply->old_extra_value, sizeof(retvalue) );
}
SERVER_END_REQ;
return retvalue;
}
if (offset <= class->cbClsExtra - sizeof(WORD))
memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(retvalue) );
else
SetLastError( ERROR_INVALID_INDEX );
release_class_ptr( class );
return retvalue;
}
/***********************************************************************
* CLASS_GetClassLong
*
* Implementation of GetClassLong(Ptr)A/W
*/
static ULONG_PTR CLASS_GetClassLong( HWND hwnd, INT offset, UINT size,
BOOL unicode )
{
CLASS *class;
ULONG_PTR retvalue = 0;
TRACE("%p %d\n", hwnd, offset);
if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
if (class == CLASS_OTHER_PROCESS)
{
SERVER_START_REQ( set_class_info )
{
req->window = hwnd;
req->flags = 0;
req->extra_offset = (offset >= 0) ? offset : -1;
req->extra_size = (offset >= 0) ? size : 0;
if (!wine_server_call_err( req ))
{
switch(offset)
{
case GCLP_HBRBACKGROUND:
case GCLP_HCURSOR:
case GCLP_HICON:
case GCLP_HICONSM:
case GCLP_WNDPROC:
case GCLP_MENUNAME:
FIXME( "offset %d not supported on other process window %p\n", offset, hwnd );
SetLastError( ERROR_INVALID_HANDLE );
break;
case GCL_STYLE:
retvalue = reply->old_style;
break;
case GCL_CBWNDEXTRA:
retvalue = reply->old_win_extra;
break;
case GCL_CBCLSEXTRA:
retvalue = reply->old_extra;
break;
case GCLP_HMODULE:
retvalue = (ULONG_PTR)reply->old_instance;
break;
case GCW_ATOM:
retvalue = reply->old_atom;
break;
default:
if (offset >= 0)
{
if (size == sizeof(DWORD))
{
DWORD retdword;
memcpy( &retdword, &reply->old_extra_value, sizeof(DWORD) );
retvalue = retdword;
}
else
memcpy( &retvalue, &reply->old_extra_value,
sizeof(ULONG_PTR) );
}
else SetLastError( ERROR_INVALID_INDEX );
break;
}
}
}
SERVER_END_REQ;
return retvalue;
}
if (offset >= 0)
{
if (offset <= class->cbClsExtra - size)
{
if (size == sizeof(DWORD))
{
DWORD retdword;
memcpy( &retdword, (char *)(class + 1) + offset, sizeof(DWORD) );
retvalue = retdword;
}
else
memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(ULONG_PTR) );
}
else
SetLastError( ERROR_INVALID_INDEX );
release_class_ptr( class );
return retvalue;
}
switch(offset)
{
case GCLP_HBRBACKGROUND:
retvalue = (ULONG_PTR)class->hbrBackground;
break;
case GCLP_HCURSOR:
retvalue = (ULONG_PTR)class->hCursor;
break;
case GCLP_HICON:
retvalue = (ULONG_PTR)class->hIcon;
break;
case GCLP_HICONSM:
retvalue = (ULONG_PTR)class->hIconSm;
break;
case GCL_STYLE:
retvalue = class->style;
break;
case GCL_CBWNDEXTRA:
retvalue = class->cbWndExtra;
break;
case GCL_CBCLSEXTRA:
retvalue = class->cbClsExtra;
break;
case GCLP_HMODULE:
retvalue = (ULONG_PTR)class->hInstance;
break;
case GCLP_WNDPROC:
retvalue = (ULONG_PTR)WINPROC_GetProc( class->winproc, unicode );
break;
case GCLP_MENUNAME:
retvalue = (ULONG_PTR)CLASS_GetMenuNameW( class );
if (unicode)
retvalue = (ULONG_PTR)CLASS_GetMenuNameW( class );
else
retvalue = (ULONG_PTR)CLASS_GetMenuNameA( class );
break;
case GCW_ATOM:
retvalue = class->atomName;
break;
default:
SetLastError( ERROR_INVALID_INDEX );
break;
}
release_class_ptr( class );
return retvalue;
}
/***********************************************************************
* GetClassLongW (USER32.@)
*/
DWORD WINAPI GetClassLongW( HWND hwnd, INT offset )
{
return CLASS_GetClassLong( hwnd, offset, sizeof(DWORD), TRUE );
}
/***********************************************************************
* GetClassLongA (USER32.@)
*/
DWORD WINAPI GetClassLongA( HWND hwnd, INT offset )
{
return CLASS_GetClassLong( hwnd, offset, sizeof(DWORD), FALSE );
}
/***********************************************************************
* SetClassWord (USER32.@)
*/
WORD WINAPI SetClassWord( HWND hwnd, INT offset, WORD newval )
{
CLASS *class;
WORD retval = 0;
if (offset < 0) return SetClassLongA( hwnd, offset, (DWORD)newval );
TRACE("%p %d %x\n", hwnd, offset, newval);
if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
SERVER_START_REQ( set_class_info )
{
req->window = hwnd;
req->flags = SET_CLASS_EXTRA;
req->extra_offset = offset;
req->extra_size = sizeof(newval);
memcpy( &req->extra_value, &newval, sizeof(newval) );
if (!wine_server_call_err( req ))
{
void *ptr = (char *)(class + 1) + offset;
memcpy( &retval, ptr, sizeof(retval) );
memcpy( ptr, &newval, sizeof(newval) );
}
}
SERVER_END_REQ;
release_class_ptr( class );
return retval;
}
/***********************************************************************
* CLASS_SetClassLong
*
* Implementation of SetClassLong(Ptr)A/W
*/
static ULONG_PTR CLASS_SetClassLong( HWND hwnd, INT offset, LONG_PTR newval,
UINT size, BOOL unicode )
{
CLASS *class;
ULONG_PTR retval = 0;
TRACE("%p %d %lx\n", hwnd, offset, newval);
if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
if (offset >= 0)
{
if (set_server_info( hwnd, offset, newval, size ))
{
void *ptr = (char *)(class + 1) + offset;
if ( size == sizeof(LONG) )
{
DWORD retdword;
LONG newlong = newval;
memcpy( &retdword, ptr, sizeof(DWORD) );
memcpy( ptr, &newlong, sizeof(LONG) );
retval = retdword;
}
else
{
memcpy( &retval, ptr, sizeof(ULONG_PTR) );
memcpy( ptr, &newval, sizeof(LONG_PTR) );
}
}
}
else switch(offset)
{
case GCLP_MENUNAME:
if ( unicode )
CLASS_SetMenuNameW( class, (LPCWSTR)newval );
else
CLASS_SetMenuNameA( class, (LPCSTR)newval );
retval = 0; /* Old value is now meaningless anyway */
break;
case GCLP_WNDPROC:
retval = (ULONG_PTR)WINPROC_GetProc( class->winproc, unicode );
class->winproc = WINPROC_AllocProc( unicode ? NULL : (WNDPROC)newval,
unicode ? (WNDPROC)newval : NULL );
break;
case GCLP_HBRBACKGROUND:
retval = (ULONG_PTR)class->hbrBackground;
class->hbrBackground = (HBRUSH)newval;
break;
case GCLP_HCURSOR:
retval = (ULONG_PTR)class->hCursor;
class->hCursor = (HCURSOR)newval;
break;
case GCLP_HICON:
retval = (ULONG_PTR)class->hIcon;
class->hIcon = (HICON)newval;
break;
case GCLP_HICONSM:
retval = (ULONG_PTR)class->hIconSm;
class->hIconSm = (HICON)newval;
break;
case GCL_STYLE:
if (!set_server_info( hwnd, offset, newval, size )) break;
retval = class->style;
class->style = newval;
break;
case GCL_CBWNDEXTRA:
if (!set_server_info( hwnd, offset, newval, size )) break;
retval = class->cbWndExtra;
class->cbWndExtra = newval;
break;
case GCLP_HMODULE:
if (!set_server_info( hwnd, offset, newval, size )) break;
retval = (ULONG_PTR)class->hInstance;
class->hInstance = (HINSTANCE)newval;
break;
case GCW_ATOM:
if (!set_server_info( hwnd, offset, newval, size )) break;
retval = class->atomName;
class->atomName = newval;
break;
case GCL_CBCLSEXTRA: /* cannot change this one */
SetLastError( ERROR_INVALID_PARAMETER );
break;
default:
SetLastError( ERROR_INVALID_INDEX );
break;
}
release_class_ptr( class );
return retval;
}
/***********************************************************************
* SetClassLongW (USER32.@)
*/
DWORD WINAPI SetClassLongW( HWND hwnd, INT offset, LONG newval )
{
TRACE("%p %d %x\n", hwnd, offset, newval);
return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG), TRUE );
}
/***********************************************************************
* SetClassLongA (USER32.@)
*/
DWORD WINAPI SetClassLongA( HWND hwnd, INT offset, LONG newval )
{
TRACE("%p %d %x\n", hwnd, offset, newval);
return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG), FALSE );
}
/***********************************************************************
* GetClassNameA (USER32.@)
*/
INT WINAPI GetClassNameA( HWND hwnd, LPSTR buffer, INT count )
{
char tmpbuf[MAX_ATOM_LEN + 1];
INT ret;
TRACE("%p %p %d\n", hwnd, buffer, count);
if (count <= 0) return 0;
ret = GlobalGetAtomNameA( GetClassLongW( hwnd, GCW_ATOM ), tmpbuf, MAX_ATOM_LEN + 1 );
if (ret)
{
ret = min(count - 1, ret);
memcpy(buffer, tmpbuf, ret);
buffer[ret] = 0;
}
return ret;
}
/***********************************************************************
* GetClassNameW (USER32.@)
*/
INT WINAPI GetClassNameW( HWND hwnd, LPWSTR buffer, INT count )
{
WCHAR tmpbuf[MAX_ATOM_LEN + 1];
INT ret;
TRACE("%p %p %d\n", hwnd, buffer, count);
if (count <= 0) return 0;
ret = GlobalGetAtomNameW( GetClassLongW( hwnd, GCW_ATOM ), tmpbuf, MAX_ATOM_LEN + 1 );
if (ret)
{
ret = min(count - 1, ret);
memcpy(buffer, tmpbuf, ret * sizeof(WCHAR));
buffer[ret] = 0;
}
return ret;
}
/***********************************************************************
* 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;
}
/***********************************************************************
* GetClassInfoExA (USER32.@)
*/
BOOL WINAPI GetClassInfoExA( HINSTANCE hInstance, LPCSTR name, WNDCLASSEXA *wc )
{
ATOM atom = HIWORD(name) ? GlobalFindAtomA( name ) : LOWORD(name);
CLASS *classPtr;
TRACE("%p %s %x %p\n", hInstance, debugstr_a(name), atom, wc);
if (!hInstance) hInstance = user32_module;
if (!atom || !(classPtr = CLASS_FindClassByAtom( atom, hInstance )))
{
SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
return FALSE;
}
wc->style = classPtr->style;
wc->lpfnWndProc = WINPROC_GetProc( classPtr->winproc, FALSE );
wc->cbClsExtra = classPtr->cbClsExtra;
wc->cbWndExtra = classPtr->cbWndExtra;
wc->hInstance = (hInstance == user32_module) ? 0 : hInstance;
wc->hIcon = (HICON)classPtr->hIcon;
wc->hIconSm = (HICON)classPtr->hIconSm;
wc->hCursor = (HCURSOR)classPtr->hCursor;
wc->hbrBackground = (HBRUSH)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameA( classPtr );
wc->lpszClassName = name;
release_class_ptr( classPtr );
/* 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 = HIWORD(name) ? GlobalFindAtomW( name ) : LOWORD(name);
CLASS *classPtr;
TRACE("%p %s %x %p\n", hInstance, debugstr_w(name), atom, wc);
if (!hInstance) hInstance = user32_module;
if (!atom || !(classPtr = CLASS_FindClassByAtom( atom, hInstance )))
{
SetLastError( ERROR_CLASS_DOES_NOT_EXIST );
return FALSE;
}
wc->style = classPtr->style;
wc->lpfnWndProc = WINPROC_GetProc( classPtr->winproc, TRUE );
wc->cbClsExtra = classPtr->cbClsExtra;
wc->cbWndExtra = classPtr->cbWndExtra;
wc->hInstance = (hInstance == user32_module) ? 0 : hInstance;
wc->hIcon = (HICON)classPtr->hIcon;
wc->hIconSm = (HICON)classPtr->hIconSm;
wc->hCursor = (HCURSOR)classPtr->hCursor;
wc->hbrBackground = (HBRUSH)classPtr->hbrBackground;
wc->lpszMenuName = CLASS_GetMenuNameW( classPtr );
wc->lpszClassName = name;
release_class_ptr( classPtr );
/* 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 CLASS_GetClassLong( hwnd, offset, sizeof(ULONG_PTR), FALSE );
}
/***********************************************************************
* GetClassLongPtrW (USER32.@)
*/
ULONG_PTR WINAPI GetClassLongPtrW( HWND hwnd, INT offset )
{
return CLASS_GetClassLong( hwnd, offset, sizeof(ULONG_PTR), TRUE );
}
/***********************************************************************
* SetClassLongPtrW (USER32.@)
*/
ULONG_PTR WINAPI SetClassLongPtrW( HWND hwnd, INT offset, LONG_PTR newval )
{
return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG_PTR), TRUE );
}
/***********************************************************************
* SetClassLongPtrA (USER32.@)
*/
ULONG_PTR WINAPI SetClassLongPtrA( HWND hwnd, INT offset, LONG_PTR newval )
{
return CLASS_SetClassLong( hwnd, offset, newval, sizeof(LONG_PTR), FALSE );
}
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