problem with setwindowshookex

[skval]

Hi guys,

I want to disable any key press and mouse move.
For that purpose i use SetWindowsHookEx on WH_KEYBOARD_LL & WH_MOUSE_LL, the problem is, that after I unhook thos functions with UnhookWindowsHookEx, all the keys that were pressed and the mouse moves that were made before i installed my hook, happens.

here is my hook function of the keyboard:


__declspec(dllexport)LRESULT CALLBACK KeyboardHookProc(
int code,
WPARAM wParam,
LPARAM lParam
)
{
if(code==HC_ACTION)
{
if(wParam==WM_KEYDOWN || wParam==WM_KEYUP || wParam==WM_SYSKEYDOWN ||
wParam==WM_SYSKEYUP)
{
return 1;
}

}

return CallNextHookEx(hKeyboard,code,wParam,lParam);

}



any idea how to block this operation from occuring even after I unhook the keyboard?

thanks in advance.

[_Superman_]

When you unhook, your code is no longer running.
Then how do you expect to block keyboard operations.

You could trick the user to pull out the keyboard cable.

[skval]

Hi,

thanks for the comment, but you didn't understand me fully.
the keys that were pressed when i hooked the keyboard, are being "pressed" after i unhooked the keyboard.
so if while the keyboard is hooked i wrote "hello world", nothing will happen, untill i will unhook the keyboard, and then "hello world" will be written on the screen, even though i haven't touched the keyboard.

[_Superman_]

Now I understand your question.

Before return 1; you could add the following line.
while (PeekMessage(&msg, hwnd, WM_KEYFIRST, WM_KEYLAST, PM_REMOVE));

[skval]

And what if the window thet recieves the keyboard events dose't belong to the current thread?
Isn't there a way to tell windows to drop thos keys through the hook procedure?