Fix mismatches between format string and arguments
diff --git a/win/rfb_win32/Clipboard.cxx b/win/rfb_win32/Clipboard.cxx
index 482519e..70f52ad 100644
--- a/win/rfb_win32/Clipboard.cxx
+++ b/win/rfb_win32/Clipboard.cxx
@@ -87,7 +87,7 @@
 }
 
 Clipboard::~Clipboard() {
-  vlog.debug("removing %x from chain (next is %x)", getHandle(), next_window);
+  vlog.debug("removing %p from chain (next is %p)", getHandle(), next_window);
   ChangeClipboardChain(getHandle(), next_window);
 }
 
@@ -111,7 +111,7 @@
       if (owner == getHandle()) {
         vlog.debug("local clipboard changed by me");
       } else {
-        vlog.debug("local clipboard changed by %x", owner);
+        vlog.debug("local clipboard changed by %p", owner);
 
 			  // Open the clipboard
 			  if (OpenClipboard(getHandle())) {
@@ -190,7 +190,7 @@
 
   // - Close the clipboard
   if (!CloseClipboard())
-    vlog.debug("unable to close Win32 clipboard: %u", GetLastError());
+    vlog.debug("unable to close Win32 clipboard: %lu", GetLastError());
   else
     vlog.debug("closed clipboard");
   if (clip_handle) {