Xbasic

BLOB Methods

Description

Methods available for a Blob object.

Discussion

A BLOB variable is a "Binary Large OBject" variable. It can contain any data. Alpha Anywhere provides the following functions and methods for manipulating BLOB variables.

Prefix the following methods with the <Blob> pointer, which is the same as the name of a BLOB variable. EG:

dim bb as b
bb = "Alpha"
? bb.PEEK(2)
= 108.000000

Peek functions read content at a location inside blob.

Poke functions write content at a location inside blob.

Methods

BLOB.AND Method: Bitwise and contents of a blob with another blob.
BLOB.DUMP Method: Dump the contexts of a blob to HEX (optional format hex per line, for hex/ascii etc, numbering).
BLOB.NOT Method: Bitwise not contents of a blob.
BLOB.OR Method: Bitwise or contents of a blob with another blob.
BLOB.PEEK Method: Get the value of a byte from the blob.
BLOB.PEEKB Method: Get a blob from a bigger blob.
BLOB.PEEKBIT Method: Peek at 1-bit of data, offset in bits starting at 1.
BLOB.PEEKC Method: Get the value of a substring from the blob.
BLOB.PEEKD Method: Get the value of a 32-bit word from the blob.
BLOB.PEEKN Method: Get the value of a IEEE floating point number from the blob.
BLOB.PEEKW Method: Get the value of a 16-bit word from the blob.
BLOB.POKE Method: Set the value of a byte of the blob.
BLOB.POKEB Method: Set a blob to a bigger blob.
BLOB.POKEBIT Method: Pook 1-bit of data, offset in bits starting at 1.
BLOB.POKEC Method: Set the value of a substring to the blob.
BLOB.POKED Method: Set the value of a 32-bit word of the blob.
BLOB.POKEN Method: Set the value of a IEEE floating point number of the blob.
BLOB.POKEW Method: Set the value of a 16-bit word of the blob.
BLOB.REPLICATE Method: Fill a blob with replicated data from another blob.
BLOB.RESIZE Method: Resize a blob.
BLOB.ROTATE Method: Rotate Bits within blob.
BLOB.SIZE Method: Return the number of bytes in the blob.
BLOB.XOR Method: Bitwise xor contents of a blob with another blob.