user32: Add stub for GetThreadDpiHostingBehavior.

dlls/user32/sysparams.c

@@ -747,6 +747,15 @@ DPI_AWARENESS_CONTEXT WINAPI SetThreadDpiAwarenessContext( DPI_AWARENESS_CONTEXT
 }
 
 /**********************************************************************
+ *              GetThreadDpiHostingBehavior   (USER32.@)
+ */
+DPI_HOSTING_BEHAVIOR WINAPI GetThreadDpiHostingBehavior( void )
+{
+    FIXME("(): stub\n");
+    return DPI_HOSTING_BEHAVIOR_DEFAULT;
+}
+
+/**********************************************************************
  *              SetThreadDpiHostingBehavior   (USER32.@)
  */
 DPI_HOSTING_BEHAVIOR WINAPI SetThreadDpiHostingBehavior( DPI_HOSTING_BEHAVIOR value )

dlls/user32/user32.spec

@@ -395,6 +395,7 @@
 @ stdcall GetTaskmanWindow ()
 @ stdcall GetThreadDesktop(long) NtUserGetThreadDesktop
 @ stdcall GetThreadDpiAwarenessContext()
+@ stdcall GetThreadDpiHostingBehavior()
 @ stdcall GetTitleBarInfo(long ptr) NtUserGetTitleBarInfo
 @ stdcall GetTopWindow(long)
 @ stdcall GetTouchInputInfo(long long ptr long)

include/winuser.h

@@ -4282,6 +4282,7 @@ WINUSERAPI DWORD       WINAPI GetTabbedTextExtentW(HDC,LPCWSTR,INT,INT,const INT
 WINUSERAPI BOOL        WINAPI GetTitleBarInfo(HWND,PTITLEBARINFO);
 WINUSERAPI HDESK       WINAPI GetThreadDesktop(DWORD);
 WINUSERAPI DPI_AWARENESS_CONTEXT WINAPI GetThreadDpiAwarenessContext(void);
+WINUSERAPI DPI_HOSTING_BEHAVIOR WINAPI GetThreadDpiHostingBehavior(void);
 WINUSERAPI HWND        WINAPI GetTopWindow(HWND);
 WINUSERAPI BOOL        WINAPI GetTouchInputInfo(HTOUCHINPUT,UINT,TOUCHINPUT*,int);
 WINUSERAPI BOOL        WINAPI GetUpdateRect(HWND,LPRECT,BOOL);