hot to access comport delphi

I want to know how to access computers serial port (comm port) without using any component. can someone tell me with code, i am using Delphi 2009 for my developent
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thooloonAsked:
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btframeworkCommented:
Use CreateFile/Read/Write/CloseHandle functions. All is described in MSDN and Delphi help very well with samples.
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thooloonAuthor Commented:
can i have some codes
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