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Overview |
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Group |
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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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LocalFree
The LocalFree function frees the specified local memory object and invalidates its handle.
HLOCAL LocalFree(
HLOCAL hMem
| // handle of local memory object
| );
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Parameters
hMem
Identifies the local memory object. This handle is returned by either the LocalAlloc or LocalReAlloc function.
Return Values
If the function succeeds, the return value is NULL.
If the function fails, the return value is equal to the handle of the local
memory object. To get extended error information, call GetLastError.
Remarks
If the process tries to examine or modify the memory after it has been freed,
heap corruption may occur or an access violation exception
(EXCEPTION_ACCESS_VIOLATION) may be generated.
If the hMem parameter is NULL, LocalFree ignores the parameter and returns NULL.
LocalFree succeeds even if the memory object is locked by a previous call to the LocalLock function. The LocalLock function locks a local memory object and increments the lock count by one.
The LocalUnlock function unlocks it and decrements the lock count by one. To get the lock
count of a local memory object, use the LocalFlags function. LocalFree will free a locked memory object. A locked memory object has a lock count
greater than zero.
Both GlobalFree and LocalFree will free a locked memory object. However, if you run an application under a
debug version of Windows NT or Windows 95, both GlobalFree and LocalFree will issue a message that tells you that this is happening. If you are
debugging the application, GlobalFree and LocalFree will enter a hard-coded breakpoint just before freeing a locked object. This
lets you double-check the intended behavior.
See Also
GlobalFree, LocalAlloc, LocalFlags, LocalLock, LocalReAlloc, LocalUnlock
Related Links
Software for Delphi and C++ Builder developers
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MegaDetailed.NET
More Online Helps
Win32 Programmer's Reference (win32.hlp)
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
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