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wine/windows/class.c
Alexandre Julliard bd13ab8d78 Store a pointer to the client-side class structure in the server and 
return it on create_window and destroy_class.
Only create a single instance of the desktop class for the whole
session.
Added some missing locking in the client-side class management.
2003-12-11 05:34:53 +00:00

1405 lines
43 KiB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "wine/winbase16.h"
#include "winerror.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "wownt32.h"
#include "wine/unicode.h"
#include "win.h"
#include "user.h"
#include "controls.h"
#include "dce.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 winprocA; /* Window procedure (ASCII) */
WNDPROC winprocW; /* Window procedure (Unicode) */
INT cbClsExtra; /* Class extra bytes */
INT cbWndExtra; /* Window extra bytes */
LPWSTR menuName; /* Default menu name (Unicode followed by ASCII) */
SEGPTR segMenuName; /* Default menu name as SEGPTR */
struct tagDCE *dce; /* Class DCE (if CS_CLASSDC) */
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 );
static CLASS *desktop_class;
static HMODULE user32_module;
#define CLASS_OTHER_PROCESS ((CLASS *)1)
/***********************************************************************
* 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) return ptr->class;
if (write_access && IsWindow( hwnd )) /* check other processes */
{
/* modifying classes in other processes is not allowed */
SetLastError( ERROR_ACCESS_DENIED );
return NULL;
}
return CLASS_OTHER_PROCESS;
}
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 newval )
{
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 GCL_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 = sizeof(newval);
memcpy( &req->extra_value, &newval, sizeof(newval) );
break;
}
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* CLASS_GetProc
*
* Get the class winproc for a given proc type
*/
static WNDPROC16 CLASS_GetProc( CLASS *classPtr, WINDOWPROCTYPE type )
{
WNDPROC proc = classPtr->winprocA;
if (classPtr->winprocW)
{
/* if we have a Unicode proc, use it if we have no ASCII proc
* or if we have both and Unicode was requested
*/
if (!proc || type == WIN_PROC_32W) proc = classPtr->winprocW;
}
return WINPROC_GetProc( proc, type );
}
/***********************************************************************
* CLASS_SetProc
*
* Set the class winproc for a given proc type.
* Returns the previous window proc.
*/
static WNDPROC16 CLASS_SetProc( CLASS *classPtr, WNDPROC newproc, WINDOWPROCTYPE type )
{
WNDPROC *proc = &classPtr->winprocA;
WNDPROC16 ret;
if (classPtr->winprocW)
{
/* if we have a Unicode proc, use it if we have no ASCII proc
* or if we have both and Unicode was requested
*/
if (!*proc || type == WIN_PROC_32W) proc = &classPtr->winprocW;
}
ret = WINPROC_GetProc( *proc, type );
WINPROC_SetProc( proc, newproc, type, WIN_PROC_CLASS );
/* now free the one that we didn't set */
if (classPtr->winprocA && classPtr->winprocW)
{
if (proc == &classPtr->winprocA)
{
WINPROC_FreeProc( classPtr->winprocW, WIN_PROC_CLASS );
classPtr->winprocW = 0;
}
else
{
WINPROC_FreeProc( classPtr->winprocA, WIN_PROC_CLASS );
classPtr->winprocA = 0;
}
}
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_GetMenuName16
*
* Get the menu name as a SEGPTR.
*/
inline static SEGPTR CLASS_GetMenuName16( CLASS *classPtr )
{
if (!HIWORD(classPtr->menuName)) return (SEGPTR)classPtr->menuName;
if (!classPtr->segMenuName)
classPtr->segMenuName = MapLS( CLASS_GetMenuNameA(classPtr) );
return classPtr->segMenuName;
}
/***********************************************************************
* 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 )
{
UnMapLS( classPtr->segMenuName );
classPtr->segMenuName = 0;
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 )
{
UnMapLS( classPtr->segMenuName );
classPtr->segMenuName = 0;
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->dce) DCE_FreeDCE( classPtr->dce );
if (classPtr->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
DeleteObject( classPtr->hbrBackground );
WINPROC_FreeProc( classPtr->winprocA, WIN_PROC_CLASS );
WINPROC_FreeProc( classPtr->winprocW, WIN_PROC_CLASS );
UnMapLS( classPtr->segMenuName );
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%lx clExtr=0x%x winExtr=0x%x\n",
atom, hInstance, style, classExtra, winExtra );
/* Fix the extra bytes value */
if (classExtra < 0) classExtra = 0;
else if (classExtra > 40) /* Extra bytes are limited to 40 in Win32 */
WARN("Class extra bytes %d is > 40\n", classExtra);
if (winExtra < 0) winExtra = 0;
else 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;
classPtr->dce = (style & CS_CLASSDC) ? DCE_AllocDCE( 0, DCE_CLASS_DC ) : NULL;
/* 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;
if (descr->procA) WINPROC_SetProc( &classPtr->winprocA, descr->procA,
WIN_PROC_32A, WIN_PROC_CLASS );
if (descr->procW) WINPROC_SetProc( &classPtr->winprocW, descr->procW,
WIN_PROC_32W, WIN_PROC_CLASS );
release_class_ptr( classPtr );
return classPtr;
}
/***********************************************************************
* CLASS_RegisterBuiltinClasses
*/
void CLASS_RegisterBuiltinClasses( HMODULE user32 )
{
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;
user32_module = user32;
desktop_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, WINDOWPROCTYPE type )
{
if (!class) class = desktop_class;
if (type == WIN_PROC_32W)
{
if (!(win->winproc = class->winprocW)) win->winproc = class->winprocA;
}
else
{
if (!(win->winproc = class->winprocA)) win->winproc = class->winprocW;
}
win->class = class;
win->clsStyle = class->style;
win->dce = class->dce;
}
/***********************************************************************
* RegisterClass (USER.57)
*/
ATOM WINAPI RegisterClass16( const WNDCLASS16 *wc )
{
WNDCLASSEX16 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 RegisterClassEx16( &wcex );
}
/***********************************************************************
* RegisterClassA (USER32.@)
* 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.@)
*/
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 );
}
/***********************************************************************
* RegisterClassEx (USER.397)
*/
ATOM WINAPI RegisterClassEx16( const WNDCLASSEX16 *wc )
{
ATOM atom;
CLASS *classPtr;
HINSTANCE hInstance;
if (!(hInstance = HINSTANCE_32(GetExePtr(wc->hInstance))))
hInstance = HINSTANCE_32(GetModuleHandle16(NULL));
if (!(atom = GlobalAddAtomA( MapSL(wc->lpszClassName) ))) return 0;
if (!(classPtr = CLASS_RegisterClass( atom, hInstance, !(wc->style & CS_GLOBALCLASS),
wc->style, wc->cbClsExtra, wc->cbWndExtra )))
return 0;
TRACE("atom=%04x wndproc=%p hinst=%p bg=%04x style=%08x clsExt=%d winExt=%d class=%p\n",
atom, wc->lpfnWndProc, hInstance,
wc->hbrBackground, wc->style, wc->cbClsExtra,
wc->cbWndExtra, classPtr );
classPtr->hIcon = HICON_32(wc->hIcon);
classPtr->hIconSm = HICON_32(wc->hIconSm);
classPtr->hCursor = HCURSOR_32(wc->hCursor);
classPtr->hbrBackground = HBRUSH_32(wc->hbrBackground);
WINPROC_SetProc( &classPtr->winprocA, (WNDPROC)wc->lpfnWndProc,
WIN_PROC_16, WIN_PROC_CLASS );
CLASS_SetMenuNameA( classPtr, MapSL(wc->lpszMenuName) );
release_class_ptr( classPtr );
return atom;
}
/***********************************************************************
* 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;
WINPROC_SetProc( &classPtr->winprocA, wc->lpfnWndProc, WIN_PROC_32A, WIN_PROC_CLASS );
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;
WINPROC_SetProc( &classPtr->winprocW, wc->lpfnWndProc, WIN_PROC_32W, WIN_PROC_CLASS );
CLASS_SetMenuNameW( classPtr, wc->lpszMenuName );
release_class_ptr( classPtr );
return atom;
}
/***********************************************************************
* UnregisterClass (USER.403)
*/
BOOL16 WINAPI UnregisterClass16( LPCSTR className, HINSTANCE16 hInstance )
{
if (hInstance == GetModuleHandle16("user")) hInstance = 0;
return UnregisterClassA( className, HINSTANCE_32(GetExePtr( hInstance )) );
}
/***********************************************************************
* 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;
}
if (!hInstance) hInstance = GetModuleHandleW( NULL );
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;
}
/***********************************************************************
* GetClassLong (USER.131)
*/
LONG WINAPI GetClassLong16( HWND16 hwnd16, INT16 offset )
{
CLASS *class;
LONG ret;
HWND hwnd = (HWND)(ULONG_PTR)hwnd16; /* no need for full handle */
TRACE("%p %d\n",hwnd, offset);
switch( offset )
{
case GCL_WNDPROC:
if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
if (class == CLASS_OTHER_PROCESS) break;
ret = (LONG)CLASS_GetProc( class, WIN_PROC_16 );
release_class_ptr( class );
return ret;
case GCL_MENUNAME:
if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
if (class == CLASS_OTHER_PROCESS) break;
ret = (LONG)CLASS_GetMenuName16( class );
release_class_ptr( class );
return ret;
default:
return GetClassLongA( hwnd, offset );
}
FIXME( "offset %d not supported on other process window %p\n", offset, hwnd );
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
/***********************************************************************
* GetClassLongW (USER32.@)
*/
LONG WINAPI GetClassLongW( HWND hwnd, INT offset )
{
CLASS *class;
LONG 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) ? sizeof(retvalue) : 0;
if (!wine_server_call_err( req ))
{
switch(offset)
{
case GCL_HBRBACKGROUND:
case GCL_HCURSOR:
case GCL_HICON:
case GCL_HICONSM:
case GCL_WNDPROC:
case GCL_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 GCL_HMODULE:
retvalue = (LONG)reply->old_instance;
break;
case GCW_ATOM:
retvalue = reply->old_atom;
break;
default:
if (offset >= 0) memcpy( &retvalue, &reply->old_extra_value, sizeof(retvalue) );
else SetLastError( ERROR_INVALID_INDEX );
break;
}
}
}
SERVER_END_REQ;
return retvalue;
}
if (offset >= 0)
{
if (offset <= class->cbClsExtra - sizeof(LONG))
memcpy( &retvalue, (char *)(class + 1) + offset, sizeof(retvalue) );
else
SetLastError( ERROR_INVALID_INDEX );
release_class_ptr( class );
return retvalue;
}
switch(offset)
{
case GCL_HBRBACKGROUND:
retvalue = (LONG)class->hbrBackground;
break;
case GCL_HCURSOR:
retvalue = (LONG)class->hCursor;
break;
case GCL_HICON:
retvalue = (LONG)class->hIcon;
break;
case GCL_HICONSM:
retvalue = (LONG)class->hIconSm;
break;
case GCL_STYLE:
retvalue = (LONG)class->style;
break;
case GCL_CBWNDEXTRA:
retvalue = (LONG)class->cbWndExtra;
break;
case GCL_CBCLSEXTRA:
retvalue = (LONG)class->cbClsExtra;
break;
case GCL_HMODULE:
retvalue = (LONG)class->hInstance;
break;
case GCL_WNDPROC:
retvalue = (LONG)CLASS_GetProc( class, WIN_PROC_32W );
break;
case GCL_MENUNAME:
retvalue = (LONG)CLASS_GetMenuNameW( class );
break;
case GCW_ATOM:
retvalue = (DWORD)class->atomName;
break;
default:
SetLastError( ERROR_INVALID_INDEX );
break;
}
release_class_ptr( class );
return retvalue;
}
/***********************************************************************
* GetClassLongA (USER32.@)
*/
LONG WINAPI GetClassLongA( HWND hwnd, INT offset )
{
CLASS *class;
LONG retvalue;
if (offset != GCL_WNDPROC && offset != GCL_MENUNAME)
return GetClassLongW( hwnd, offset );
TRACE("%p %d\n", hwnd, offset);
if (!(class = get_class_ptr( hwnd, FALSE ))) return 0;
if (class == CLASS_OTHER_PROCESS)
{
FIXME( "offset %d not supported on other process window %p\n", offset, hwnd );
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
if (offset == GCL_WNDPROC)
retvalue = (LONG)CLASS_GetProc( class, WIN_PROC_32A );
else /* GCL_MENUNAME */
retvalue = (LONG)CLASS_GetMenuNameA( class );
release_class_ptr( class );
return retvalue;
}
/***********************************************************************
* 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;
}
/***********************************************************************
* SetClassLong (USER.132)
*/
LONG WINAPI SetClassLong16( HWND16 hwnd16, INT16 offset, LONG newval )
{
CLASS *class;
LONG retval;
HWND hwnd = (HWND)(ULONG_PTR)hwnd16; /* no need for full handle */
TRACE("%p %d %lx\n", hwnd, offset, newval);
switch(offset)
{
case GCL_WNDPROC:
if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
retval = (LONG)CLASS_SetProc( class, (WNDPROC)newval, WIN_PROC_16 );
release_class_ptr( class );
return retval;
case GCL_MENUNAME:
newval = (LONG)MapSL( newval );
/* fall through */
default:
return SetClassLongA( hwnd, offset, newval );
}
}
/***********************************************************************
* SetClassLongW (USER32.@)
*/
LONG WINAPI SetClassLongW( HWND hwnd, INT offset, LONG newval )
{
CLASS *class;
LONG 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 ))
{
void *ptr = (char *)(class + 1) + offset;
memcpy( &retval, ptr, sizeof(retval) );
memcpy( ptr, &newval, sizeof(newval) );
}
}
else switch(offset)
{
case GCL_MENUNAME:
CLASS_SetMenuNameW( class, (LPCWSTR)newval );
retval = 0; /* Old value is now meaningless anyway */
break;
case GCL_WNDPROC:
retval = (LONG)CLASS_SetProc( class, (WNDPROC)newval, WIN_PROC_32W );
break;
case GCL_HBRBACKGROUND:
retval = (LONG)class->hbrBackground;
class->hbrBackground = (HBRUSH)newval;
break;
case GCL_HCURSOR:
retval = (LONG)class->hCursor;
class->hCursor = (HCURSOR)newval;
break;
case GCL_HICON:
retval = (LONG)class->hIcon;
class->hIcon = (HICON)newval;
break;
case GCL_HICONSM:
retval = (LONG)class->hIconSm;
class->hIconSm = (HICON)newval;
break;
case GCL_STYLE:
if (!set_server_info( hwnd, offset, newval )) break;
retval = (LONG)class->style;
class->style = newval;
break;
case GCL_CBWNDEXTRA:
if (!set_server_info( hwnd, offset, newval )) break;
retval = (LONG)class->cbWndExtra;
class->cbWndExtra = newval;
break;
case GCL_HMODULE:
if (!set_server_info( hwnd, offset, newval )) break;
retval = (LONG)class->hInstance;
class->hInstance = (HINSTANCE)newval;
break;
case GCW_ATOM:
if (!set_server_info( hwnd, offset, newval )) break;
retval = (DWORD)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;
}
/***********************************************************************
* SetClassLongA (USER32.@)
*/
LONG WINAPI SetClassLongA( HWND hwnd, INT offset, LONG newval )
{
CLASS *class;
LONG retval;
if (offset != GCL_WNDPROC && offset != GCL_MENUNAME)
return SetClassLongW( hwnd, offset, newval );
TRACE("%p %d %lx\n", hwnd, offset, newval);
if (!(class = get_class_ptr( hwnd, TRUE ))) return 0;
if (offset == GCL_WNDPROC)
retval = (LONG)CLASS_SetProc( class, (WNDPROC)newval, WIN_PROC_32A );
else /* GCL_MENUNAME */
{
CLASS_SetMenuNameA( class, (LPCSTR)newval );
retval = 0; /* Old value is now meaningless anyway */
}
release_class_ptr( class );
return retval;
}
/***********************************************************************
* GetClassNameA (USER32.@)
*/
INT WINAPI GetClassNameA( HWND hwnd, LPSTR buffer, INT count )
{
INT ret = GlobalGetAtomNameA( GetClassLongA( hwnd, GCW_ATOM ), buffer, count );
TRACE("%p %s %x\n",hwnd, debugstr_a(buffer), count);
return ret;
}
/***********************************************************************
* GetClassNameW (USER32.@)
*/
INT WINAPI GetClassNameW( HWND hwnd, LPWSTR buffer, INT count )
{
INT ret = GlobalGetAtomNameW( GetClassLongW( hwnd, GCW_ATOM ), buffer, count );
TRACE("%p %s %x\n",hwnd, debugstr_w(buffer), count);
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 );
}
/***********************************************************************
* GetClassInfo (USER.404)
*/
BOOL16 WINAPI GetClassInfo16( HINSTANCE16 hInst16, SEGPTR name, WNDCLASS16 *wc )
{
WNDCLASSEX16 wcex;
UINT16 ret = GetClassInfoEx16( hInst16, 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;
}
/***********************************************************************
* 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;
}
/***********************************************************************
* GetClassInfoEx (USER.398)
*
* FIXME: this is just a guess, I have no idea if GetClassInfoEx() is the
* same in Win16 as in Win32. --AJ
*/
BOOL16 WINAPI GetClassInfoEx16( HINSTANCE16 hInst16, SEGPTR name, WNDCLASSEX16 *wc )
{
ATOM atom = HIWORD(name) ? GlobalFindAtomA( MapSL(name) ) : LOWORD(name);
CLASS *classPtr;
HINSTANCE hInstance;
if (hInst16 == GetModuleHandle16("user")) hInstance = user32_module;
else hInstance = HINSTANCE_32(GetExePtr( hInst16 ));
TRACE("%p %s %x %p\n", hInstance, debugstr_a( MapSL(name) ), atom, wc);
if (!atom || !(classPtr = CLASS_FindClassByAtom( atom, hInstance ))) return FALSE;
wc->style = classPtr->style;
wc->lpfnWndProc = CLASS_GetProc( classPtr, WIN_PROC_16 );
wc->cbClsExtra = (INT16)classPtr->cbClsExtra;
wc->cbWndExtra = (INT16)classPtr->cbWndExtra;
wc->hInstance = (classPtr->hInstance == user32_module) ? GetModuleHandle16("user") : HINSTANCE_16(classPtr->hInstance);
wc->hIcon = HICON_16(classPtr->hIcon);
wc->hIconSm = HICON_16(classPtr->hIconSm);
wc->hCursor = HCURSOR_16(classPtr->hCursor);
wc->hbrBackground = HBRUSH_16(classPtr->hbrBackground);
wc->lpszClassName = (SEGPTR)0;
wc->lpszMenuName = CLASS_GetMenuName16( classPtr );
wc->lpszClassName = name;
release_class_ptr( classPtr );
/* We must return the atom of the class here instead of just TRUE. */
return atom;
}
/***********************************************************************
* 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 = (WNDPROC)CLASS_GetProc( classPtr, WIN_PROC_32A );
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 = (WNDPROC)CLASS_GetProc( classPtr, WIN_PROC_32W );
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
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