GetBit - method of the PmBuffer object

Reading the value of one bit.
Boolean GetBit(Long nOffset, Long nBitIndex)
nOffset(Long) Specifies the position of read value in the data block.
The read value must be inside the data block. The item is read either whole or not read at all.
>= 0 - Index (in bytes, zero-based index) in data block.
-4 - The internal automatic position is used (see the AutoOffset property). It points behind the last read or written value and increases continually.
If the items are read/written one by one then it is not necessary to define the position, but it is better to use this automated positioning.
nBitIndex(Long) Bit index (zero-based index). The value must be any non-negative integer (it must define the position inside the data area range).
This method is also functional in Web panels.
See also:
- PmBuffer.SetBit (method)
- Pm.GetBit (method)
- PmVar.GetBit (method)
JavaScriptSelect and copy to clipboard

var oBuf = Pm.CreatePmBuffer();
oBuf.SetInt8(-2, 0);
oBuf.SetBit(0, 0, true);
oBuf.SetBit(0, 1, true);
oBuf.SetBit(0, 2, false);
oBuf.SetBit(0, 3, true);

oBuf.AutoOffset = 0;
var bit0 = oBuf.GetBit(0, 0);
var bit1 = oBuf.GetBit(0, 1);
var bit2 = oBuf.GetBit(0, 2);
var bit3 = oBuf.GetBit(0, 3);

Pm9.00.05: Created
PROMOTIC 9.0.17 SCADA system documentation - MICROSYS, spol. s r.o.

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