diff --git a/mingw-w64-crt/ChangeLog b/mingw-w64-crt/ChangeLog
index e8db225..18d5e59 100644
--- a/mingw-w64-crt/ChangeLog
+++ b/mingw-w64-crt/ChangeLog
@@ -1,3 +1,9 @@
+2010-02-10  Kai Tietz  <kai.tietz@onevision.com>
+
+	* lib32/user32.def: Add IsTouchWindow, RegisterTouchWindow and UnregisterTouchWindow
+	missing for support of revision 1530.
+	* lib64/user32.def: Likewise.
+
 2010-02-10  Ozkan Sezer  <sezeroz@gmail.com>
 
 	A couple of lib32/*.def file fixes from mingw:
diff --git a/mingw-w64-crt/lib32/user32.def b/mingw-w64-crt/lib32/user32.def
index c837035..f0f8f04 100644
--- a/mingw-w64-crt/lib32/user32.def
+++ b/mingw-w64-crt/lib32/user32.def
@@ -390,6 +390,7 @@
 IsIconic@4
 IsMenu@4
 IsRectEmpty@4
+IsTouchWindow@8
 IsWinEventHookInstalled@4
 IsWindow@4
 IsWindowEnabled@4
@@ -487,6 +488,7 @@
 RegisterHotKey@16
 RegisterPowerSettingNotification@12
 RegisterRawInputDevices@12
+RegisterTouchWindow@8
 RegisterWindowMessageA@4
 RegisterWindowMessageW@4
 ReleaseCapture@0
@@ -616,6 +618,7 @@
 UnregisterDeviceNotification@4
 UnregisterHotKey@8
 UnregisterPowerSettingNotification@4
+UnregisterTouchWindow@4
 UpdateLayeredWindow@36
 UpdateWindow@4
 UserHandleGrantAccess@12
diff --git a/mingw-w64-crt/lib64/user32.def b/mingw-w64-crt/lib64/user32.def
index d96b0ed..29a8110 100644
--- a/mingw-w64-crt/lib64/user32.def
+++ b/mingw-w64-crt/lib64/user32.def
@@ -437,6 +437,7 @@
 IsRectEmpty
 IsSETEnabled
 IsServerSideWindow
+IsTouchWindow
 IsWinEventHookInstalled
 IsWindow
 IsWindowEnabled
@@ -560,6 +561,7 @@
 RegisterShellHookWindow
 RegisterSystemThread
 RegisterTasklist
+RegisterTouchWindow
 RegisterUserApiHook
 RegisterWindowMessageA
 RegisterWindowMessageW
@@ -711,6 +713,7 @@
 UnregisterHotKey
 UnregisterMessagePumpHook
 UnregisterPowerSettingNotification
+UnregisterTouchWindow
 UnregisterUserApiHook
 UpdateLayeredWindow
 UpdateLayeredWindowIndirect