win32u: Move NtUserGetDCEx implementation from user32.

dlls/user32/caret.c

@@ -26,7 +26,7 @@
 #include "windef.h"
 #include "winbase.h"
 #include "wingdi.h"
-#include "winuser.h"
+#include "ntuser.h"
 #include "wine/server.h"
 #include "wine/debug.h"
 
@@ -52,7 +52,7 @@ static void CARET_DisplayCaret( HWND hwnd, const RECT *r )
     HDC hCompDC;
 
     /* do not use DCX_CACHE here, for x,y,width,height are in logical units */
-    if (!(hdc = GetDCEx( hwnd, 0, DCX_USESTYLE /*| DCX_CACHE*/ ))) return;
+    if (!(hdc = NtUserGetDCEx( hwnd, 0, DCX_USESTYLE /*| DCX_CACHE*/ ))) return;
     hCompDC = CreateCompatibleDC(hdc);
     if (hCompDC)
     {

dlls/user32/class.c

@@ -361,26 +361,6 @@ WNDPROC get_class_winproc( CLASS *class )
 
 
 /***********************************************************************
- *           get_class_dce
- */
-struct dce *get_class_dce( CLASS *class )
-{
-    return class->dce;
-}
-
-
-/***********************************************************************
- *           set_class_dce
- */
-struct dce *set_class_dce( CLASS *class, struct dce *dce )
-{
-    if (class->dce) return class->dce;  /* already set, don't change it */
-    class->dce = dce;
-    return dce;
-}
-
-
-/***********************************************************************
  *		RegisterClassA (USER32.@)
  *
  * Register a window class.

dlls/user32/controls.h

@@ -115,8 +115,6 @@ extern ATOM get_int_atom_value( UNICODE_STRING *name ) DECLSPEC_HIDDEN;
 extern void register_builtin_classes(void) DECLSPEC_HIDDEN;
 extern void register_desktop_class(void) DECLSPEC_HIDDEN;
 extern WNDPROC get_class_winproc( struct tagCLASS *class ) DECLSPEC_HIDDEN;
-extern struct dce *get_class_dce( struct tagCLASS *class ) DECLSPEC_HIDDEN;
-extern struct dce *set_class_dce( struct tagCLASS *class, struct dce *dce ) DECLSPEC_HIDDEN;
 
 /* defwnd proc */
 extern HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType ) DECLSPEC_HIDDEN;

dlls/user32/driver.c

@@ -83,11 +83,6 @@ static void CDECL nulldrv_DestroyWindow( HWND hwnd )
 {
 }
 
-static void CDECL nulldrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
-                                 const RECT *top_rect, DWORD flags )
-{
-}
-
 static DWORD CDECL nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
                                                         DWORD mask, DWORD flags )
 {
@@ -96,10 +91,6 @@ static DWORD CDECL nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDL
                                      timeout, flags & MWMO_ALERTABLE );
 }
 
-static void CDECL nulldrv_ReleaseDC( HWND hwnd, HDC hdc )
-{
-}
-
 static void CDECL nulldrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
 {
 }
@@ -163,12 +154,6 @@ static BOOL CDECL loaderdrv_CreateWindow( HWND hwnd )
     return load_driver()->pCreateWindow( hwnd );
 }
 
-static void CDECL loaderdrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
-                                   const RECT *top_rect, DWORD flags )
-{
-    load_driver()->pGetDC( hdc, hwnd, top_win, win_rect, top_rect, flags );
-}
-
 static struct user_driver_funcs lazy_load_driver =
 {
     { NULL },
@@ -199,9 +184,9 @@ static struct user_driver_funcs lazy_load_driver =
     loaderdrv_CreateWindow,
     nulldrv_DestroyWindow,
     NULL,
-    loaderdrv_GetDC,
+    NULL,
     nulldrv_MsgWaitForMultipleObjectsEx,
-    nulldrv_ReleaseDC,
+    NULL,
     NULL,
     NULL,
     NULL,
@@ -247,9 +232,7 @@ void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT v
     SET_USER_FUNC(UpdateClipboard);
     SET_USER_FUNC(CreateWindow);
     SET_USER_FUNC(DestroyWindow);
-    SET_USER_FUNC(GetDC);
     SET_USER_FUNC(MsgWaitForMultipleObjectsEx);
-    SET_USER_FUNC(ReleaseDC);
     SET_USER_FUNC(SetParent);
     SET_USER_FUNC(SetWindowIcon);
     SET_USER_FUNC(SetWindowStyle);

dlls/user32/listbox.c

@@ -775,7 +775,7 @@ static void LISTBOX_RepaintItem( LB_DESCR *descr, INT index, UINT action )
         return;
     }
     if (LISTBOX_GetItemRect( descr, index, &rect ) != 1) return;
-    if (!(hdc = GetDCEx( descr->self, 0, DCX_CACHE ))) return;
+    if (!(hdc = NtUserGetDCEx( descr->self, 0, DCX_CACHE ))) return;
     if (descr->font) oldFont = SelectObject( hdc, descr->font );
     hbrush = (HBRUSH)SendMessageW( descr->owner, WM_CTLCOLORLISTBOX,
 				   (WPARAM)hdc, (LPARAM)descr->self );
@@ -806,7 +806,7 @@ static void LISTBOX_DrawFocusRect( LB_DESCR *descr, BOOL on )
     if (!descr->caret_on || !descr->in_focus) return;
 
     if (LISTBOX_GetItemRect( descr, descr->focus_item, &rect ) != 1) return;
-    if (!(hdc = GetDCEx( descr->self, 0, DCX_CACHE ))) return;
+    if (!(hdc = NtUserGetDCEx( descr->self, 0, DCX_CACHE ))) return;
     if (descr->font) oldFont = SelectObject( hdc, descr->font );
     if (!IsWindowEnabled(descr->self))
         SetTextColor( hdc, GetSysColor( COLOR_GRAYTEXT ) );
@@ -1408,7 +1408,7 @@ static INT LISTBOX_SetFont( LB_DESCR *descr, HFONT font )
 
     descr->font = font;
 
-    if (!(hdc = GetDCEx( descr->self, 0, DCX_CACHE )))
+    if (!(hdc = NtUserGetDCEx( descr->self, 0, DCX_CACHE )))
     {
         ERR("unable to get DC.\n" );
         return 16;

dlls/user32/menu.c

@@ -2035,7 +2035,7 @@ static void MENU_SelectItem( HWND hwndOwner, HMENU hmenu, UINT wIndex,
 
     if (lppop->FocusedItem == wIndex) return;
     if (lppop->wFlags & MF_POPUP) hdc = GetDC( lppop->hWnd );
-    else hdc = GetDCEx( lppop->hWnd, 0, DCX_CACHE | DCX_WINDOW);
+    else hdc = NtUserGetDCEx( lppop->hWnd, 0, DCX_CACHE | DCX_WINDOW);
     if (!top_popup) {
         top_popup = lppop->hWnd;
         top_popup_hmenu = hmenu;
@@ -2382,7 +2382,7 @@ static HMENU MENU_ShowSubPopup( HWND hwndOwner, HMENU hmenu,
     if (!(item->fState & MF_HILITE))
     {
         if (menu->wFlags & MF_POPUP) hdc = GetDC( menu->hWnd );
-        else hdc = GetDCEx( menu->hWnd, 0, DCX_CACHE | DCX_WINDOW);
+        else hdc = NtUserGetDCEx( menu->hWnd, 0, DCX_CACHE | DCX_WINDOW);
 
         SelectObject( hdc, get_menu_font(FALSE));
 
@@ -3642,7 +3642,7 @@ UINT MENU_GetMenuBarHeight( HWND hwnd, UINT menubarWidth,
 
     if (!(lppop = MENU_GetMenu( GetMenu(hwnd) ))) return 0;
 
-    hdc = GetDCEx( hwnd, 0, DCX_CACHE | DCX_WINDOW );
+    hdc = NtUserGetDCEx( hwnd, 0, DCX_CACHE | DCX_WINDOW );
     SelectObject( hdc, get_menu_font(FALSE));
     SetRect(&rectBar, orgX, orgY, orgX+menubarWidth, orgY+GetSystemMetrics(SM_CYMENU));
     MENU_MenuBarCalcSize( hdc, &rectBar, lppop, hwnd );

dlls/user32/nonclient.c

@@ -998,11 +998,11 @@ static void  NC_DoNCPaint( HWND  hwnd, HRGN  clip )
     if (clip > (HRGN)1)
     {
         CombineRgn( hrgn, clip, hrgn, RGN_DIFF );
-        hdc = GetDCEx( hwnd, hrgn, DCX_USESTYLE | DCX_WINDOW | DCX_INTERSECTRGN );
+        hdc = NtUserGetDCEx( hwnd, hrgn, DCX_USESTYLE | DCX_WINDOW | DCX_INTERSECTRGN );
     }
     else
     {
-        hdc = GetDCEx( hwnd, hrgn, DCX_USESTYLE | DCX_WINDOW | DCX_EXCLUDERGN );
+        hdc = NtUserGetDCEx( hwnd, hrgn, DCX_USESTYLE | DCX_WINDOW | DCX_EXCLUDERGN );
     }
 
     if (!hdc)

dlls/user32/scroll.c

@@ -732,8 +732,7 @@ void SCROLL_DrawNCScrollBar( HWND hwnd, HDC hdc, BOOL draw_horizontal, BOOL draw
 static void SCROLL_RefreshScrollBar( HWND hwnd, INT nBar,
 				     BOOL arrows, BOOL interior )
 {
-    HDC hdc = GetDCEx( hwnd, 0,
-                           DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW) );
+    HDC hdc = NtUserGetDCEx( hwnd, 0, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW) );
     if (!hdc) return;
 
     SCROLL_DrawScrollBar( hwnd, hdc, nBar, g_tracking_info.hit_test, &g_tracking_info, arrows, interior );
@@ -836,7 +835,7 @@ void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt )
         return;
     }
 
-    hdc = GetDCEx( hwnd, 0, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW));
+    hdc = NtUserGetDCEx( hwnd, 0, DCX_CACHE | ((nBar == SB_CTL) ? 0 : DCX_WINDOW));
     vertical = SCROLL_GetScrollBarRect( hwnd, nBar, &rect,
                                         &arrowSize, &thumbSize, &thumbPos );
     hwndOwner = (nBar == SB_CTL) ? GetParent(hwnd) : hwnd;

dlls/user32/user32.spec

@@ -287,7 +287,7 @@
 @ stdcall GetCursorInfo(ptr) NtUserGetCursorInfo
 @ stdcall GetCursorPos(ptr)
 @ stdcall GetDC(long)
-@ stdcall GetDCEx(long long long)
+@ stdcall GetDCEx(long long long) NtUserGetDCEx
 @ stdcall GetDesktopWindow()
 @ stdcall GetDialogBaseUnits()
 @ stdcall GetDisplayAutoRotationPreferences(ptr)

dlls/user32/user_main.c

@@ -151,7 +151,6 @@ static const struct user_callbacks user_funcs =
     SendNotifyMessageW,
     SetWindowPos,
     WaitForInputIdle,
-    free_dce,
     notify_ime,
     register_builtin_classes,
     MSG_SendInternalMessageTimeout,

dlls/user32/user_private.h

@@ -110,8 +110,6 @@ extern void create_offscreen_window_surface( const RECT *visible_rect, struct wi
 extern void CLIPBOARD_ReleaseOwner( HWND hwnd ) DECLSPEC_HIDDEN;
 extern BOOL FOCUS_MouseActivate( HWND hwnd ) DECLSPEC_HIDDEN;
 extern BOOL set_capture_window( HWND hwnd, UINT gui_flags, HWND *prev_ret ) DECLSPEC_HIDDEN;
-extern void WINAPI free_dce( struct dce *dce, HWND hwnd ) DECLSPEC_HIDDEN;
-extern void invalidate_dce( struct tagWND *win, const RECT *rect ) DECLSPEC_HIDDEN;
 extern HDC get_display_dc(void) DECLSPEC_HIDDEN;
 extern void release_display_dc( HDC hdc ) DECLSPEC_HIDDEN;
 extern void erase_now( HWND hwnd, UINT rdw_flags ) DECLSPEC_HIDDEN;

dlls/user32/winpos.c

@@ -2729,7 +2729,7 @@ void WINPOS_SysCommandSizeMove( HWND hwnd, WPARAM wParam )
     }
 
     /* Retrieve a default cache DC (without using the window style) */
-    hdc = GetDCEx( parent, 0, DCX_CACHE );
+    hdc = NtUserGetDCEx( parent, 0, DCX_CACHE );
 
     /* we only allow disabling the full window drag for child windows */
     if (parent) SystemParametersInfoW( SPI_GETDRAGFULLWINDOWS, 0, &DragFullWindows, 0 );

dlls/win32u/class.c

@@ -272,6 +272,24 @@ static CLASS *find_class( HINSTANCE module, UNICODE_STRING *name )
 }
 
 /***********************************************************************
+ *           get_class_dce
+ */
+struct dce *get_class_dce( CLASS *class )
+{
+    return class->dce;
+}
+
+/***********************************************************************
+ *           set_class_dce
+ */
+struct dce *set_class_dce( CLASS *class, struct dce *dce )
+{
+    if (class->dce) return class->dce;  /* already set, don't change it */
+    class->dce = dce;
+    return dce;
+}
+
+/***********************************************************************
  *	     NtUserRegisterClassExWOW   (win32u.@)
  */
 ATOM WINAPI NtUserRegisterClassExWOW( const WNDCLASSEXW *wc, UNICODE_STRING *name, UNICODE_STRING *version,
@@ -399,7 +417,7 @@ BOOL WINAPI NtUserUnregisterClass( UNICODE_STRING *name, HINSTANCE instance,
     TRACE( "%p\n", class );
 
     user_lock();
-    if (class->dce && user_callbacks) user_callbacks->free_dce( class->dce, 0 );
+    if (class->dce) free_dce( class->dce, 0 );
     list_remove( &class->entry );
     if (class->hbrBackground > (HBRUSH)(COLOR_GRADIENTINACTIVECAPTION + 1))
         NtGdiDeleteObjectApp( class->hbrBackground );

dlls/win32u/driver.c

@@ -1132,6 +1132,12 @@ static BOOL CDECL loaderdrv_CreateDesktopWindow( HWND hwnd )
     return load_driver()->pCreateDesktopWindow( hwnd );
 }
 
+static void CDECL loaderdrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
+                                   const RECT *top_rect, DWORD flags )
+{
+    load_driver()->pGetDC( hdc, hwnd, top_win, win_rect, top_rect, flags );
+}
+
 static void CDECL loaderdrv_FlashWindowEx( FLASHWINFO *info )
 {
     load_driver()->pFlashWindowEx( info );
@@ -1185,10 +1191,12 @@ static const struct user_driver_funcs lazy_load_driver =
     /* windowing functions */
     .pCreateDesktopWindow = loaderdrv_CreateDesktopWindow,
     .pFlashWindowEx = loaderdrv_FlashWindowEx,
+    .pGetDC = loaderdrv_GetDC,
     .pSetCapture = nulldrv_SetCapture,
     .pSetLayeredWindowAttributes = loaderdrv_SetLayeredWindowAttributes,
     .pSetWindowRgn = loaderdrv_SetWindowRgn,
     .pMsgWaitForMultipleObjectsEx = nulldrv_MsgWaitForMultipleObjectsEx,
+    .pReleaseDC =  nulldrv_ReleaseDC,
     .pScrollDC = nulldrv_ScrollDC,
     .pSetFocus = nulldrv_SetFocus,
     .pUpdateLayeredWindow = loaderdrv_UpdateLayeredWindow,

dlls/win32u/gdiobj.c

@@ -1168,6 +1168,7 @@ static struct unix_funcs unix_funcs =
     NtUserGetAsyncKeyState,
     NtUserGetClassInfoEx,
     NtUserGetCursorInfo,
+    NtUserGetDCEx,
     NtUserGetDisplayConfigBufferSizes,
     NtUserGetIconInfo,
     NtUserGetKeyNameText,
@@ -1206,7 +1207,6 @@ static struct unix_funcs unix_funcs =
     NtUserWindowFromPoint,
 
     GetDCHook,
-    SetDCHook,
     SetDIBits,
     SetHookFlags,
     __wine_get_brush_bitmap_info,

dlls/win32u/ntuser_private.h

@@ -38,7 +38,6 @@ struct user_callbacks
     BOOL (WINAPI *pSendNotifyMessageW)( HWND, UINT, WPARAM, LPARAM );
     BOOL (WINAPI *pSetWindowPos)( HWND, HWND, INT, INT, INT, INT, UINT );
     DWORD (WINAPI *pWaitForInputIdle)( HANDLE, DWORD );
-    void (WINAPI *free_dce)( struct dce *dce, HWND hwnd );
     void (CDECL *notify_ime)( HWND hwnd, UINT param );
     void (CDECL *register_builtin_classes)(void);
     LRESULT (WINAPI *send_ll_message)( DWORD, DWORD, UINT, WPARAM, LPARAM, UINT, UINT, PDWORD_PTR );
@@ -243,10 +242,16 @@ ULONG_PTR get_class_long_ptr( HWND hwnd, INT offset, BOOL ansi ) DECLSPEC_HIDDEN
 WORD get_class_word( HWND hwnd, INT offset ) DECLSPEC_HIDDEN;
 ATOM get_int_atom_value( UNICODE_STRING *name ) DECLSPEC_HIDDEN;
 WNDPROC get_winproc( WNDPROC proc, BOOL ansi ) DECLSPEC_HIDDEN;
+struct dce *get_class_dce( struct tagCLASS *class ) DECLSPEC_HIDDEN;
+struct dce *set_class_dce( struct tagCLASS *class, struct dce *dce ) DECLSPEC_HIDDEN;
 
 /* cursoricon.c */
 HICON alloc_cursoricon_handle( BOOL is_icon ) DECLSPEC_HIDDEN;
 
+/* dce.c */
+extern void free_dce( struct dce *dce, HWND hwnd ) DECLSPEC_HIDDEN;
+extern void invalidate_dce( WND *win, const RECT *extra_rect ) DECLSPEC_HIDDEN;
+
 /* message.c */
 LRESULT handle_internal_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam ) DECLSPEC_HIDDEN;
 

dlls/win32u/sysparams.c

@@ -4720,10 +4720,16 @@ ULONG_PTR WINAPI NtUserCallTwoParam( ULONG_PTR arg1, ULONG_PTR arg2, ULONG code
         return HandleToUlong( alloc_user_handle( (struct user_object *)arg1, arg2 ));
     case NtUserAllocWinProc:
         return (UINT_PTR)alloc_winproc( (WNDPROC)arg1, arg2 );
+    case NtUserFreeDCE:
+        free_dce( (struct dce *)arg1, UlongToHandle(arg2) );
+        return 0;
     case NtUserFreeHandle:
         return (UINT_PTR)free_user_handle( UlongToHandle(arg1), arg2 );
     case NtUserGetHandlePtr:
         return (UINT_PTR)get_user_handle_ptr( UlongToHandle(arg1), arg2 );
+    case NtUserInvalidateDCE:
+        invalidate_dce( (void *)arg1, (const RECT *)arg2 );
+        return 0;
     case NtUserRegisterWindowSurface:
         register_window_surface( (struct window_surface *)arg1, (struct window_surface *)arg2 );
         return 0;

dlls/win32u/win32u.spec

@@ -916,7 +916,7 @@
 @ stdcall -syscall NtUserGetCursorFrameInfo(long long ptr ptr)
 @ stdcall NtUserGetCursorInfo(ptr)
 @ stub NtUserGetDC
-@ stub NtUserGetDCEx
+@ stdcall NtUserGetDCEx(long long long)
 @ stub NtUserGetDManipHookInitFunction
 @ stub NtUserGetDesktopID
 @ stub NtUserGetDisplayAutoRotationPreferences
@@ -1322,7 +1322,6 @@
 
 # user32
 @ stdcall GetDCHook(long ptr)
-@ stdcall SetDCHook(long ptr long)
 @ stdcall SetHookFlags(long long)
 @ cdecl __wine_set_visible_region(long long ptr ptr ptr)
 

dlls/win32u/win32u_private.h

@@ -207,6 +207,7 @@ struct unix_funcs
     ATOM     (WINAPI *pNtUserGetClassInfoEx)( HINSTANCE instance, UNICODE_STRING *name, WNDCLASSEXW *wc,
                                               struct client_menu_name *menu_name, BOOL ansi );
     BOOL     (WINAPI *pNtUserGetCursorInfo)( CURSORINFO *info );
+    HDC      (WINAPI *pNtUserGetDCEx)( HWND hwnd, HRGN clip_rgn, DWORD flags );
     LONG     (WINAPI *pNtUserGetDisplayConfigBufferSizes)( UINT32 flags, UINT32 *num_path_info,
                                                            UINT32 *num_mode_info );
     BOOL     (WINAPI *pNtUserGetIconInfo)( HICON icon, ICONINFO *info, UNICODE_STRING *module,
@@ -259,7 +260,6 @@ struct unix_funcs
 
     /* Wine-specific functions */
     DWORD_PTR (WINAPI *pGetDCHook)( HDC hdc, DCHOOKPROC *proc );
-    BOOL (WINAPI *pSetDCHook)( HDC hdc, DCHOOKPROC proc, DWORD_PTR data );
     INT (WINAPI *pSetDIBits)( HDC hdc, HBITMAP hbitmap, UINT startscan,
                               UINT lines, const void *bits, const BITMAPINFO *info,
                               UINT coloruse );
@@ -329,12 +329,17 @@ struct tagWND;
 extern HWND get_desktop_window(void) DECLSPEC_HIDDEN;
 extern HWND get_full_window_handle( HWND hwnd ) DECLSPEC_HIDDEN;
 extern HWND get_hwnd_message_parent(void) DECLSPEC_HIDDEN;
+extern DPI_AWARENESS_CONTEXT get_window_dpi_awareness_context( HWND hwnd ) DECLSPEC_HIDDEN;
 extern BOOL get_window_placement( HWND hwnd, WINDOWPLACEMENT *placement ) DECLSPEC_HIDDEN;
 extern DWORD get_window_thread( HWND hwnd, DWORD *process ) DECLSPEC_HIDDEN;
+extern HWND is_current_process_window( HWND hwnd ) DECLSPEC_HIDDEN;
 extern HWND is_current_thread_window( HWND hwnd ) DECLSPEC_HIDDEN;
 extern BOOL is_iconic( HWND hwnd ) DECLSPEC_HIDDEN;
 extern DWORD get_window_long( HWND hwnd, INT offset ) DECLSPEC_HIDDEN;
 extern BOOL get_window_rect( HWND hwnd, RECT *rect, UINT dpi ) DECLSPEC_HIDDEN;
+enum coords_relative;
+extern BOOL get_window_rects( HWND hwnd, enum coords_relative relative, RECT *window_rect,
+                              RECT *client_rect, UINT dpi ) DECLSPEC_HIDDEN;
 extern HWND *list_window_children( HDESK desktop, HWND hwnd, UNICODE_STRING *class,
                                    DWORD tid ) DECLSPEC_HIDDEN;
 extern void update_window_state( HWND hwnd ) DECLSPEC_HIDDEN;

dlls/win32u/window.c

@@ -258,6 +258,22 @@ HWND is_current_thread_window( HWND hwnd )
     return ret;
 }
 
+/***********************************************************************
+ *           is_current_process_window
+ *
+ * Check whether a given window belongs to the current process (and return the full handle).
+ */
+HWND is_current_process_window( HWND hwnd )
+{
+    WND *ptr;
+    HWND ret;
+
+    if (!(ptr = get_win_ptr( hwnd )) || ptr == WND_OTHER_PROCESS || ptr == WND_DESKTOP) return 0;
+    ret = ptr->obj.handle;
+    release_win_ptr( ptr );
+    return ret;
+}
+
 /* see IsWindow */
 BOOL is_window( HWND hwnd )
 {
@@ -686,7 +702,7 @@ static BOOL is_window_unicode( HWND hwnd )
 }
 
 /* see GetWindowDpiAwarenessContext */
-static DPI_AWARENESS_CONTEXT get_window_dpi_awareness_context( HWND hwnd )
+DPI_AWARENESS_CONTEXT get_window_dpi_awareness_context( HWND hwnd )
 {
     DPI_AWARENESS_CONTEXT ret = 0;
     WND *win;

dlls/win32u/wrappers.c

@@ -814,6 +814,12 @@ BOOL WINAPI NtUserGetCursorInfo( CURSORINFO *info )
     return unix_funcs->pNtUserGetCursorInfo( info );
 }
 
+HDC WINAPI NtUserGetDCEx( HWND hwnd, HRGN clip_rgn, DWORD flags )
+{
+    if (!unix_funcs) return 0;
+    return unix_funcs->pNtUserGetDCEx( hwnd, clip_rgn, flags );
+}
+
 LONG WINAPI NtUserGetDisplayConfigBufferSizes( UINT32 flags, UINT32 *num_path_info,
                                                UINT32 *num_mode_info )
 {
@@ -1047,12 +1053,6 @@ DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
     return unix_funcs->pGetDCHook( hdc, proc );
 }
 
-BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC proc, DWORD_PTR data )
-{
-    if (!unix_funcs) return FALSE;
-    return unix_funcs->pSetDCHook( hdc, proc, data );
-}
-
 INT WINAPI SetDIBits( HDC hdc, HBITMAP hbitmap, UINT startscan,
                       UINT lines, const void *bits, const BITMAPINFO *info,
                       UINT coloruse )

include/ntuser.h

@@ -133,8 +133,10 @@ enum
     /* temporary exports */
     NtUserAllocHandle,
     NtUserAllocWinProc,
+    NtUserFreeDCE,
     NtUserFreeHandle,
     NtUserGetHandlePtr,
+    NtUserInvalidateDCE,
     NtUserRegisterWindowSurface,
     NtUserSetHandlePtr,
 };
@@ -316,6 +318,7 @@ HCURSOR WINAPI NtUserGetCursor(void);
 HCURSOR WINAPI NtUserGetCursorFrameInfo( HCURSOR hCursor, DWORD istep, DWORD *rate_jiffies,
                                          DWORD *num_steps );
 BOOL    WINAPI NtUserGetCursorInfo( CURSORINFO *info );
+HDC     WINAPI NtUserGetDCEx( HWND hwnd, HRGN clip_rgn, DWORD flags );
 LONG    WINAPI NtUserGetDisplayConfigBufferSizes( UINT32 flags, UINT32 *num_path_info,
                                                   UINT32 *num_mode_info );
 UINT    WINAPI NtUserGetDoubleClickTime(void);