Coding/.NET/WinForms/ショートカットキー
Processing Global Mouse and Keyboard Hooks in C#
http://www.codeproject.com/KB/cs/globalhook.aspx
Using Window Messages to Implement Global System Hooks in C# - CodeProject
http://www.codeproject.com/KB/system/WilsonSystemGlobalHooks.aspx?q=global+hook+codeproject
Global System Hooks in .NET - CodeProject
http://www.codeproject.com/KB/system/globalsystemhook.aspx
Global Mouse and Keyboard Library - CodeProject
http://www.codeproject.com/KB/system/globalmousekeyboardlib.aspx
Global Windows Hooks - CodeProject
http://www.codeproject.com/KB/DLL/WindowsHookLib.aspx