Root > Reference > All Functions > IsValidBlockAddr

Function IsValidBlockAddr

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Verifies that the caller has read access to the specified range of memory.

 

Unit

ELowLevel

 

Syntax

 

Code (Delphi)

function IsValidBlockAddr(

const Address: Pointer;

const Size: Cardinal

): Boolean;

 

Parameters

Address

A pointer to the first byte of the memory block.

 

Size

The size of the memory block, in bytes. If this parameter is zero, the return value is True.

 

Return value

If the caller has any read access to all bytes in the specified memory range, the return value is True.

 

If the caller does not have a read access to all bytes in the specified memory range, the return value is False.

 

Remarks

This is the simple wrapper for GetReadableSize function.

 

See GetReadableSize for more information.

 

Warning

Use this routine with caution. It's heuristic. Even when the function indicates that the process has read access to the specified memory, you should use structured exception handling when attempting to access the memory - because other thread may release this memory between checking and actual access.

 

See also

IsValidRunningThread
IsValidSymbolName



Send feedback... Build date: 2018-11-26
Last edited: 2018-11-26
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