1 files changed, 3 insertions, 35 deletions
diff --git a/opentrack/is-window-visible.hpp b/opentrack/is-window-visible.hpp
index fa6aeb53..18c9251a 100644
--- a/opentrack/is-window-visible.hpp
+++ b/opentrack/is-window-visible.hpp
@@ -1,39 +1,7 @@
-#ifdef _WIN32
+#pragma once
 
-#include <windows.h>
 #include <QWidget>
-#include <QRect>
-#include <QDebug>
-#include <QPoint>
-#include <initializer_list>
+#include "export.hpp"
 
-template<typename=void>
-bool is_window_visible(const QWidget* widget)
-{
-    const QWidget* window = widget->window();
+OPENTRACK_API_EXPORT bool is_window_visible(const QWidget* widget);
 
-    if (!window)
-        return true;
-
-    const QPoint p = widget->mapToGlobal(QPoint(0, 0));
-    const QSize s = widget->size();
-
-    const std::initializer_list<POINT> points =
-    {
-        { p.x(), p.y() },
-        { p.x() + s.width(), p.y() },
-        { p.x() + s.width(), p.y() + s.height() },
-        { p.x(), p.y() + s.height() },
-        { p.x() + s.width()/2, p.y() + s.height()/2 },
-    };
-
-    for (const POINT& pt : points)
-        if (WindowFromPoint(pt) == (HWND) widget->winId())
-            return true;
-    return false;
-}
-
-#else
-template<typename=void>
-bool is_window_visible(const QWidget* widget) { return true; }
-#endif