IsBadHugeWritePtr

The IsBadHugeWritePtr function verifies that the calling process has write access to the specified range of memory.

BOOL IsBadHugeWritePtr(

LPVOID lp,	// address of memory block
UINT ucb	// size of block
);

Parameters

lp

Points to the first byte of the memory block.

ucb

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

Return Values

If the calling process has write access to all bytes in the specified memory range, the return value is zero.

If the calling process does not have write access to all bytes in the specified memory range, the return value is nonzero. To get extended error information, call GetLastError

Remarks

If the calling process has write access to some, but not all, of the bytes in the specified memory range, the return value is nonzero.

In a preemptive multitasking environment, it is possible for some other thread to change the process's access to the memory being tested. Even when the function indicates that the process has write access to the specified memory, you should use structured exception handling when attempting to access the memory. Use of structured exception handling enables the system to notify the process if an access violation exception occurs, giving the process an opportunity to handle the exception.

IsBadHugeWritePtr is available for compatibility with earlier versions of Windows, which distinguish between normal memory allocations and huge allocations occupying multiple segments. In the Win32 API, this function is equivalent to the IsBadWritePtr function.

See Also

IsBadHugeReadPtr, IsBadReadPtr, IsBadStringPtr, IsBadWritePtr

Software for developers

Delphi Components
.Net Components
Software for Android Developers

More information resources

MegaDetailed.Net
Unix Manual Pages
Delphi Examples

Databases for Amazon shops developers

Amazon Categories Database
Browse Nodes Database