blobGetValue()
Reads "value" from byte offset "offset" with "len" bytes from blob.
Synopsis
int blobGetValue(blob source, int offset, type
&value, int len[, bool bigEndian])
Parameters
| Parameter | Description |
|---|---|
| source | The blob |
| offset | From this position, a value of length len is read from blob. |
| value | Value of any type that has to be appended |
| len | Length of value |
| bigEndian | Defines whether a value is a Big Endian or Little Endian, TRUE uses bigEndian |
Return Value
Witrh an error -1, otherwise 0
Errors
Missing or wrong arguments
Description
When data is sent in a blob, then the data has to be treated with CTRL functions to use the data in CTRL. Reads
"value" from byte offset "offset" with "len" bytes from blob.
Example
main()
{
blob source;
int len, pos;
string s;
int value;
bool bigendian;
s = "DDAB003AFFABFFAB003AFFAFFAB003AFFABFFAB003AFFABB";
source = s;
DebugN(source, bloblen(source));
len = 2;
pos = 1;
bigendian = TRUE;
blobGetValue( source, pos, value, len, bigendian );
DebugN("Blob GetValue : " , value );
// Debugging -21760, integer value of the decimal system
}Assignment
Blob functions
Availability
CTRL
