Disabling the End Call Key for windows mobile with C#

I am developing windows mobile application using with .NET CF 2.0 I want to disabling the End Call 'Key'. when my application running, This functionality should happen by pro开发者_运维技巧gramming using C# Can any one Know please help me.

Thanks in advance. vimal..

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Go here and focus on the two lines dealing with VK_TEND (0x73).