diff --git a/dlls/user32/clipboard.c b/dlls/user32/clipboard.c
index 2e0c6b92d39..8023eee4944 100644
--- a/dlls/user32/clipboard.c
+++ b/dlls/user32/clipboard.c
@@ -939,28 +939,6 @@ UINT WINAPI EnumClipboardFormats( UINT format )
 }
 
 
-/**************************************************************************
- *		IsClipboardFormatAvailable (USER32.@)
- */
-BOOL WINAPI IsClipboardFormatAvailable( UINT format )
-{
-    BOOL ret = FALSE;
-
-    if (!format) return FALSE;
-
-    USER_Driver->pUpdateClipboard();
-
-    SERVER_START_REQ( get_clipboard_formats )
-    {
-        req->format = format;
-        if (!wine_server_call_err( req )) ret = (reply->count > 0);
-    }
-    SERVER_END_REQ;
-    TRACE( "%s -> %u\n", debugstr_format( format ), ret );
-    return ret;
-}
-
-
 /**************************************************************************
  *		GetUpdatedClipboardFormats (USER32.@)
  */
@@ -1080,7 +1058,7 @@ INT WINAPI GetPriorityClipboardFormat(UINT *list, INT nCount)
         return 0;
 
     for (i = 0; i < nCount; i++)
-        if (IsClipboardFormatAvailable(list[i]))
+        if (NtUserIsClipboardFormatAvailable(list[i]))
             return list[i];
 
     return -1;
diff --git a/dlls/user32/edit.c b/dlls/user32/edit.c
index 4de206aa12f..cf5e807de21 100644
--- a/dlls/user32/edit.c
+++ b/dlls/user32/edit.c
@@ -3313,7 +3313,7 @@ static void EDIT_WM_ContextMenu(EDITSTATE *es, INT x, INT y)
 	/* copy */
 	EnableMenuItem(popup, 3, MF_BYPOSITION | ((end - start) && !(es->style & ES_PASSWORD) ? MF_ENABLED : MF_GRAYED));
 	/* paste */
-	EnableMenuItem(popup, 4, MF_BYPOSITION | (IsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
+	EnableMenuItem(popup, 4, MF_BYPOSITION | (NtUserIsClipboardFormatAvailable(CF_UNICODETEXT) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
 	/* delete */
 	EnableMenuItem(popup, 5, MF_BYPOSITION | ((end - start) && !(es->style & ES_READONLY) ? MF_ENABLED : MF_GRAYED));
 	/* select all */
diff --git a/dlls/user32/user32.spec b/dlls/user32/user32.spec
index 319dda49eb5..3a46765c038 100644
--- a/dlls/user32/user32.spec
+++ b/dlls/user32/user32.spec
@@ -460,7 +460,7 @@
 @ stdcall -import IsCharUpperA(long)
 @ stdcall -import IsCharUpperW(long)
 @ stdcall IsChild(long long)
-@ stdcall IsClipboardFormatAvailable(long)
+@ stdcall IsClipboardFormatAvailable(long) NtUserIsClipboardFormatAvailable
 @ stdcall IsDialogMessage(long ptr) IsDialogMessageA
 @ stdcall IsDialogMessageA(long ptr)
 @ stdcall IsDialogMessageW(long ptr)
diff --git a/dlls/win32u/clipboard.c b/dlls/win32u/clipboard.c
index c2fd07ac5b9..4c64655b69e 100644
--- a/dlls/win32u/clipboard.c
+++ b/dlls/win32u/clipboard.c
@@ -34,6 +34,47 @@
 WINE_DEFAULT_DEBUG_CHANNEL(clipboard);
 
 
+/* get a debug string for a format id */
+static const char *debugstr_format( UINT id )
+{
+    WCHAR buffer[256];
+    DWORD le = GetLastError();
+    BOOL r = NtUserGetClipboardFormatName( id, buffer, ARRAYSIZE(buffer) );
+    SetLastError(le);
+
+    if (r)
+        return wine_dbg_sprintf( "%04x %s", id, debugstr_w(buffer) );
+
+    switch (id)
+    {
+#define BUILTIN(id) case id: return #id;
+    BUILTIN(CF_TEXT)
+    BUILTIN(CF_BITMAP)
+    BUILTIN(CF_METAFILEPICT)
+    BUILTIN(CF_SYLK)
+    BUILTIN(CF_DIF)
+    BUILTIN(CF_TIFF)
+    BUILTIN(CF_OEMTEXT)
+    BUILTIN(CF_DIB)
+    BUILTIN(CF_PALETTE)
+    BUILTIN(CF_PENDATA)
+    BUILTIN(CF_RIFF)
+    BUILTIN(CF_WAVE)
+    BUILTIN(CF_UNICODETEXT)
+    BUILTIN(CF_ENHMETAFILE)
+    BUILTIN(CF_HDROP)
+    BUILTIN(CF_LOCALE)
+    BUILTIN(CF_DIBV5)
+    BUILTIN(CF_OWNERDISPLAY)
+    BUILTIN(CF_DSPTEXT)
+    BUILTIN(CF_DSPBITMAP)
+    BUILTIN(CF_DSPMETAFILEPICT)
+    BUILTIN(CF_DSPENHMETAFILE)
+#undef BUILTIN
+    default: return wine_dbg_sprintf( "%04x", id );
+    }
+}
+
 /**************************************************************************
  *           NtUserCountClipboardFormats    (win32u.@)
  */
@@ -54,6 +95,27 @@ INT WINAPI NtUserCountClipboardFormats(void)
     return count;
 }
 
+/**************************************************************************
+ *	     NtUserIsClipboardFormatAvailable    (win32u.@)
+ */
+BOOL WINAPI NtUserIsClipboardFormatAvailable( UINT format )
+{
+    BOOL ret = FALSE;
+
+    if (!format) return FALSE;
+
+    user_driver->pUpdateClipboard();
+
+    SERVER_START_REQ( get_clipboard_formats )
+    {
+        req->format = format;
+        if (!wine_server_call_err( req )) ret = (reply->count > 0);
+    }
+    SERVER_END_REQ;
+    TRACE( "%s -> %u\n", debugstr_format( format ), ret );
+    return ret;
+}
+
 /**************************************************************************
  *	     NtUserGetClipboardFormatName    (win32u.@)
  */
diff --git a/dlls/win32u/gdiobj.c b/dlls/win32u/gdiobj.c
index 4737aa30cd2..005bd5af165 100644
--- a/dlls/win32u/gdiobj.c
+++ b/dlls/win32u/gdiobj.c
@@ -1168,6 +1168,7 @@ static struct unix_funcs unix_funcs =
     NtGdiUpdateColors,
     NtGdiWidenPath,
     NtUserCountClipboardFormats,
+    NtUserIsClipboardFormatAvailable,
 
     GDIRealizePalette,
     GDISelectPalette,
diff --git a/dlls/win32u/win32u.spec b/dlls/win32u/win32u.spec
index d1774804293..dbfe196dbcf 100644
--- a/dlls/win32u/win32u.spec
+++ b/dlls/win32u/win32u.spec
@@ -1050,7 +1050,7 @@
 @ stub NtUserInvalidateRect
 @ stub NtUserInvalidateRgn
 @ stub NtUserIsChildWindowDpiMessageEnabled
-@ stub NtUserIsClipboardFormatAvailable
+@ stdcall NtUserIsClipboardFormatAvailable(long)
 @ stub NtUserIsMouseInPointerEnabled
 @ stub NtUserIsMouseInputEnabled
 @ stub NtUserIsNonClientDpiScalingEnabled
diff --git a/dlls/win32u/win32u_private.h b/dlls/win32u/win32u_private.h
index 7526f4414dd..71a9909cfba 100644
--- a/dlls/win32u/win32u_private.h
+++ b/dlls/win32u/win32u_private.h
@@ -195,6 +195,7 @@ struct unix_funcs
     BOOL     (WINAPI *pNtGdiUpdateColors)( HDC hdc );
     BOOL     (WINAPI *pNtGdiWidenPath)( HDC hdc );
     INT      (WINAPI *pNtUserCountClipboardFormats)(void);
+    BOOL     (WINAPI *pNtUserIsClipboardFormatAvailable)( UINT format );
 
     /* Wine-specific functions */
     UINT (WINAPI *pGDIRealizePalette)( HDC hdc );
diff --git a/dlls/win32u/wrappers.c b/dlls/win32u/wrappers.c
index d236fb6b2db..50f000bdb3c 100644
--- a/dlls/win32u/wrappers.c
+++ b/dlls/win32u/wrappers.c
@@ -601,6 +601,11 @@ INT WINAPI NtUserCountClipboardFormats(void)
     return unix_funcs->pNtUserCountClipboardFormats();
 }
 
+BOOL WINAPI NtUserIsClipboardFormatAvailable( UINT format )
+{
+    return unix_funcs->pNtUserIsClipboardFormatAvailable( format );
+}
+
 UINT WINAPI GDIRealizePalette( HDC hdc )
 {
     return unix_funcs->pGDIRealizePalette( hdc );
diff --git a/include/ntuser.h b/include/ntuser.h
index a68c8458213..083d6cb4a1b 100644
--- a/include/ntuser.h
+++ b/include/ntuser.h
@@ -38,6 +38,7 @@ BOOL    WINAPI NtUserGetObjectInformation( HANDLE handle, INT index, void *info,
 HWINSTA WINAPI NtUserGetProcessWindowStation(void);
 HANDLE  WINAPI NtUserGetProp( HWND hwnd, const WCHAR *str );
 HDESK   WINAPI NtUserGetThreadDesktop( DWORD thread );
+BOOL    WINAPI NtUserIsClipboardFormatAvailable( UINT format );
 HWINSTA WINAPI NtUserOpenWindowStation( OBJECT_ATTRIBUTES *attr, ACCESS_MASK access );
 BOOL    WINAPI NtUserSetObjectInformation( HANDLE handle, INT index, void *info, DWORD len );
 HDESK   WINAPI NtUserOpenDesktop( OBJECT_ATTRIBUTES *attr, DWORD flags, ACCESS_MASK access );