卸载钩子 UnhookWindowsHookEx
2024-08-30 19:38:47
The UnhookWindowsHookEx function removes a hook procedure installed in a hook chain by the SetWindowsHookEx function.
Syntax
BOOL UnhookWindowsHookEx( HHOOK hhk
);
Parameters
- hhk
- [in] Handle to the hook to be removed. This parameter is a hook handle obtained by a previous call to SetWindowsHookEx.
Return Value
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Remarks
The hook procedure can be in the state of being called by another thread even
after UnhookWindowsHookEx returns. If the hook procedure is not being
called concurrently, the hook procedure is removed immediately before
UnhookWindowsHookEx returns.
Example
For an example, see Monitoring System
Events.
Function Information
Minimum DLL Version user32.dll Header Declared in Winuser.h, include Windows.h Import library User32.lib Minimum operating systems Windows 95, Windows NT 3.1 Unicode Implemented as Unicode version.
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