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calling a subroutine/fucntion from insdie Private Sub SerialPort1_DataReceived...

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Hello. I don't know how to "invoke" a subroutine from inside the Private Sub SerialPort1_DataReceived.
I want to blink a label every time the RS-232 received something. Once the Private Sub SerialPort1_DataReceived is activated I want to blink a Label.

Please advise (with code if possible). Thank you.

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