1 files changed, 22 insertions, 0 deletions
diff --git a/win8/metro_driver/winrt_utils.cc b/win8/metro_driver/winrt_utils.cc
index cfddc5e..f00011d 100644
--- a/win8/metro_driver/winrt_utils.cc
+++ b/win8/metro_driver/winrt_utils.cc
@@ -70,6 +70,19 @@ HRESULT Create ## Name ## Property(Type value, \
     *result = 0; \
   hr = S_OK
 
+
+BOOL CALLBACK CoreWindowFinder(HWND hwnd, LPARAM param) {
+  HWND* window = reinterpret_cast<HWND*>(param);
+  char classname[128];
+  if (::GetClassNameA(hwnd, classname, ARRAYSIZE(classname))) {
+    if (lstrcmpiA("Windows.UI.Core.CoreWindow", classname) == 0) {
+      *window = hwnd;
+      return FALSE;
+    }
+  }
+  return TRUE;
+}
+
 }  // namespace
 
 namespace winrt_utils {
@@ -222,4 +235,13 @@ string16 ReadArgumentsFromPinnedTaskbarShortcut() {
   return L"";
 }
 
+HWND FindCoreWindow(DWORD thread_id, int wait_ms) {
+  HWND window = NULL;
+    do {
+    ::Sleep(wait_ms);
+    ::EnumThreadWindows(thread_id, &CoreWindowFinder, LPARAM(&window));
+  } while (window == NULL);
+  return window;
+}
+
 }  // namespace winrt_utils