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nf-ntintsafe-rtluintptrtouchar.md

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UID title description old-location tech.root ms.date keywords ms.keywords req.header req.include-header req.target-type req.target-min-winverclnt req.target-min-winversvr req.kmdf-ver req.umdf-ver req.ddi-compliance req.unicode-ansi req.idl req.max-support req.namespace req.assembly req.type-library req.lib req.dll req.irql targetos req.typenames f1_keywords topic_type api_type api_location api_name
NF:ntintsafe.RtlUIntPtrToUChar
RtlUIntPtrToUChar function (ntintsafe.h)
Converts a value of type UINT_PTR to a value of type UCHAR.
kernel\rtluintptrtouchar.htm
kernel
04/30/2018
RtlUIntPtrToUChar function
RtlUIntPtrToUChar, RtlUIntPtrToUChar function [Kernel-Mode Driver Architecture], kernel.rtluintptrtouchar, ntintsafe/RtlUIntPtrToUChar
ntintsafe.h
Desktop
Windows
RtlUIntPtrToUChar
ntintsafe/RtlUIntPtrToUChar
APIRef
kbSyntax
HeaderDef
Ntintsafe.h
RtlUIntPtrToUChar

RtlUIntPtrToUChar function

-description

Converts a value of type UINT_PTR to a value of type UCHAR.

-parameters

-param uOperand [in]

The value to be converted.

-param pch [out]

A pointer to the converted value. In the case where the conversion causes a truncation of the original value, the function returns STATUS_INTEGER_OVERFLOW and this parameter is not valid.

-returns

Returns STATUS_SUCCESS if the operation is successful.

See the implementation of this helper function in ntintsafe.h in the WDK for possible error return values.

-remarks

This is one of a set of inline functions designed to provide type conversions and perform validity checks with minimal impact on performance.

This function uses the following alternate name:

  • RtlSizeTToUChar