B4R Question Modifiying array length in Globals: How does it work?

KMatle

Expert
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Longtime User
With

B4X:
b4r_main::_receivedmessage->length=msg.length();

one can modify the length of the given array. I use it as a buffer (255 bytes).

To me it is always 255 bytes long (Globals), but... Maybe a stupid question but how is it's length reduced e.g. to 5? Is it redefined? Usually you use a length indicator but the array itsself stays 255 bytes long (as it is a buffer).
 
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