[gtk+/gtk-2-24-win32] win32: Don't use API_CALL for SetWindowLong

[Alexander Larsson <alexl src gnome org>]

commit 6d1b8185605ed210cdb19c1c01f9eaf3ee7fd962
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Oct 27 17:16:46 2011 +0200

    win32: Don't use API_CALL for SetWindowLong
    
    This can return 0 without it being an error.
    Should fix the last issue with bug #142874

 gdk/win32/gdkwindow-win32.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gdk/win32/gdkwindow-win32.c b/gdk/win32/gdkwindow-win32.c
index a98fe41..98a14ef 100644
--- a/gdk/win32/gdkwindow-win32.c
+++ b/gdk/win32/gdkwindow-win32.c
@@ -3814,9 +3814,9 @@ gdk_window_set_opacity (GdkWindow *window,
   exstyle = GetWindowLong (GDK_WINDOW_HWND (window), GWL_EXSTYLE);
 
   if (!(exstyle & WS_EX_LAYERED))
-    API_CALL (SetWindowLong, (GDK_WINDOW_HWND (window),
-			      GWL_EXSTYLE,
-			      exstyle | WS_EX_LAYERED));
+    SetWindowLong (GDK_WINDOW_HWND (window),
+		    GWL_EXSTYLE,
+		    exstyle | WS_EX_LAYERED);
 
   setLayeredWindowAttributes = 
     (PFN_SetLayeredWindowAttributes)GetProcAddress (GetModuleHandle ("user32.dll"), "SetLayeredWindowAttributes");