[gtk: 1/8] Remove WM_SYNCPAINT message handler

[Luca Bacci <lbacci src gnome org>]

commit 7a1004df7313518c5a9edf272000c502a33b5b47
Author: Luca Bacci <luca bacci982 gmail com>
Date:   Tue Dec 14 18:32:51 2021 +0100

    Remove WM_SYNCPAINT message handler
    
    It was added to work around what seemed to be an OS or graphics
    driver issue on Windows XP. The issue was not reproducible on
    Windows Vista anyway.
    
    References:
    * https://bugzilla.gnome.org/show_bug.cgi?id=153567
    * https://gitlab.gnome.org/GNOME/gtk/-/commit/c8fef535
    * https://devblogs.microsoft.com/oldnewthing/20120723-00/?p=7073

 gdk/win32/gdkevents-win32.c | 24 ------------------------
 1 file changed, 24 deletions(-)
---
diff --git a/gdk/win32/gdkevents-win32.c b/gdk/win32/gdkevents-win32.c
index 6327cca1c2..bc7590aa13 100644
--- a/gdk/win32/gdkevents-win32.c
+++ b/gdk/win32/gdkevents-win32.c
@@ -157,7 +157,6 @@ static HKL latin_locale = NULL;
 
 static gboolean in_ime_composition = FALSE;
 static UINT     modal_timer;
-static UINT     sync_timer = 0;
 
 static int debug_indent = 0;
 
@@ -1453,23 +1452,6 @@ _gdk_win32_end_modal_call (GdkWin32ModalOpKind kind)
     }
 }
 
-static VOID CALLBACK
-sync_timer_proc (HWND     hwnd,
-                UINT     msg,
-                UINT_PTR id,
-                DWORD    time)
-{
-  MSG message;
-  if (PeekMessageW (&message, hwnd, WM_PAINT, WM_PAINT, PM_REMOVE))
-    {
-      return;
-    }
-
-  RedrawWindow (hwnd, NULL, NULL, RDW_INVALIDATE|RDW_UPDATENOW|RDW_ALLCHILDREN);
-
-  KillTimer (hwnd, sync_timer);
-}
-
 static gboolean
 handle_nchittest (HWND hwnd,
                   GdkSurface *window,
@@ -2854,12 +2836,6 @@ gdk_event_translate (MSG *msg,
       *ret_valp = 1;
       break;
 
-    case WM_SYNCPAINT:
-      sync_timer = SetTimer (GDK_SURFACE_HWND (window),
-                            1,
-                            200, sync_timer_proc);
-      break;
-
     case WM_PAINT:
       handle_wm_paint (msg, window);
       break;