1 files changed, 24 insertions, 0 deletions
diff --git a/Examples/csharp/callback/example.h b/Examples/csharp/callback/example.h
new file mode 100644
index 0000000..38d25a0
--- /dev/null
+++ b/Examples/csharp/callback/example.h
@@ -0,0 +1,24 @@
+/* File : example.h */
+
+#include <cstdio>
+#include <iostream>
+
+class Callback {
+public:
+	virtual ~Callback() { std::cout << "Callback::~Callback()" << std:: endl; }
+	virtual void run() { std::cout << "Callback::run()" << std::endl; }
+};
+
+
+class Caller {
+private:
+	Callback *_callback;
+public:
+	Caller(): _callback(0) {}
+	~Caller() { delCallback(); }
+	void delCallback() { delete _callback; _callback = 0; }
+	void setCallback(Callback *cb) { delCallback(); _callback = cb; }
+	void resetCallback() { _callback = 0; }
+	void call() { if (_callback) _callback->run(); }
+};
+