sample_map.h

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本文介绍了Windows应用程序中消息处理函数WndProc和特定资源ID的宏定义，包括退出、测试及关于对话框的处理。通过宏定义实现了资源标识符的指定，并展示了两个回调函数的声明。

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#define IDM_TEST           200
#define IDM_ABOUT          301

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About (HWND, UINT, WPARAM, LPARAM);