Sending Ctrl+Z to a serial port

I开发者_如何学C'm sending AT-Command to gsm modem through serial port.

At the end of the AT-Command I have to terminate the command with Ctrl+z

How would I do that in serial port?

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try this

(char)26

detail on ascii of char-z

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Send the ASCII character 0x1A.

Have a look at the ASCII code table

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Use this Command

port.Write(txt_msgbox.Text + char.ConvertFromUtf32(26));