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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| kernel32.lib
| Header File
| winbase.h
| Unicode
| No
| Platform Notes
| None
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IsBadCodePtr
The IsBadCodePtr function determines whether the calling process has read access to the memory
at the specified address.
BOOL IsBadCodePtr(
FARPROC lpfn
| // address of function
| );
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Parameters
lpfn
Points to an address in memory.
Return Values
If the calling process has read access to the specified memory, the return
value is zero.
If the calling process does not have read access to the specified memory, the
return value is nonzero. To get extended error information, call GetLastError.
Remarks
IsBadCodePtr checks the read access only at the specified address and does not guarantee
read access to a range of memory.
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 read 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.
See Also
IsBadHugeReadPtr, IsBadHugeWritePtr, IsBadReadPtr, IsBadStringPtr, IsBadWritePtr
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Unix Manual Pages
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