(#8) Added extern C

Author: s1hofmann

src/highlightwindow.h

@@ -2,8 +2,17 @@
 #ifndef HIGHLIGHT_WINDOW_H
 #define HIGHLIGHT_WINDOW_H
 
+#ifdef __cplusplus
+extern "C" 
+{
+#endif
+
 #include <stdint.h>
 
 void showHighlightWindow(int32_t x, int32_t y, int32_t width, int32_t height, long duration, float opacity);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif