GetPtr - method of the PmBuffer object

Description:

Mock reading (skipping) of pointer to another data block.

Syntax:

Empty GetPtr(Long nOffset)

Parameters:

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 the data block. -4 - The internal automatic position is used (see the AutoOffset property). It points behind the last read or written value. This operation shifts the internal automatic position behind the read/written value. If the items are read/written one by one then it is not necessary to define the position manually, but it is better to use this automated positioning.

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 the data block.

-4 - The internal automatic position is used (see the AutoOffset property). It points behind the last read or written value.
This operation shifts the internal automatic position behind the read/written value.
If the items are read/written one by one then it is not necessary to define the position manually, but it is better to use this automated positioning.

Note:

This method is not functional in Web panels.
Caution! The pointer size is 4 bytes in 32-bit and 8 bytes in 64-bit. The method allows skipping the saved pointer (4 or 8 bytes) without real reading and go to the next item. Manual reading position skipping must be different in 32-bits compared to 64-bits.