1 files changed, 26 insertions, 0 deletions
diff --git a/opentrack/is-window-visible.hpp b/opentrack/is-window-visible.hpp
new file mode 100644
index 00000000..300e541a
--- /dev/null
+++ b/opentrack/is-window-visible.hpp
@@ -0,0 +1,26 @@
+#ifdef _WIN32
+
+#include <windows.h>
+#include <QWidget>
+#include <QRect>
+#include <QDebug>
+
+template<typename=void>
+bool is_window_visible(const QWidget* widget)
+{
+    const QWidget* window = widget->window();
+
+    if (!window)
+        return true;
+
+    const QPoint p = widget->mapToGlobal(widget->pos());
+    const QSize s = widget->size();
+    POINT pt = { p.x() + s.width()/2, p.y() + s.height()/2 };
+
+    return WindowFromPoint(pt) == (HWND) widget->winId();
+}
+
+#else
+template<typename=void>
+bool is_window_visible(const QWidget* widget) { return true; }
+#endif