Core Function PTRRead

PTRRead( <ptr>, <type>, <offset> )

Description

Read data from a memory pointer optionally starting from a given index.

Parameters

ptr

The pointer to use.

type

The type of data to read

[TYPE]		[WHAT IT IS]
r		Raw bytes
c		ASCII char
C		UNICODE char
b		unsigned byte
B		signed byte
s		signed int16
i		signed int32
l		signed int64
S		unsigned int16
I		unsigned int32
L		unsigned int64
f		float
d		double
t		pointer

offset

Offset to add to the pointer.

length

Optional; Only valid if type is "r" this defines how many bytes to read.

Return Value

Success: Returns the value requested or -1 if fail.

Failure: Returns null.

Remarks

None.

Example

$PTR = Alloc(300);
 
PTRWrite($PTR, "f", 0, 133.77);
PTRWrite($PTR, "l", 4, 777);
PTRWrite($PTR, "i", 12, 1221);
 
Println( PTRRead($PTR, "f", 0) );
Println( PTRRead($PTR, "l", 4) );
Println( PTRRead($PTR, "i", 12) );
 
Free($PTR);