ULong2Long - Reinterpret an unsigned 32 bit integer as signed

Syntax

<nLong> := ULong2Long( <nULong> )

Parameters

<nULong>

ULONG value to be converted to LONG value. Values outside the allowed range will result in unpredictable return values.        

Return value

The LONG value that results if the bits in <nULong> are interpreted as signed.

Description

ULong2Long converts an unsigned 32 bit value into a signed 32 bit value. In C a 32bit value can be interpreted in different ways. This interpretation is defined by the type. For example the binary value 11111111 11111111 11111111 11111111 could be interpreted as +4294967295 (ULONG) or as -1 (LONG).

So what this function actually does is reinterpret the bit pattern of the ULONG <nULong> as a LONG.

Classification

Core

Category

Type Conversion

Quick Info

Library: cckptcor.lib / cckptcor.dll

See also

Long2ULong

Example