win32 global hook

[gekoscan]

Hello,

http://msdn.microsoft.com/msdnmag/is...0/cuttingedge/

I don't know if any of you are familiar with Dino Esposito article in
MSDN magazine on .NET Hooks but I used the class he created named
LocalWindowsHoo k that imports the below API calls

protected static extern IntPtr SetWindowsHookE x(HookType code,
HookProc func,
IntPtr hInstance,
int threadID);

and a few other necessary functions from user32.dll to implement a
hook.

I ended up changing his Install function from

public void Install()
{
m_hhook = SetWindowsHookE x(
m_hookType, m_filterFunc,
IntPtr.Zero,
(int)AppDomain. GetCurrentThrea dId());
}

to

public void Install()
{
m_hhook = SetWindowsHookE x(
m_hookType,
m_filterFunc,
GetHInstance(),
0);
}

public static IntPtr GetHInstance()
{
return
Marshal.GetHINS TANCE(System.Re flection.Assemb ly.GetExecuting Assembly().GetM odules()[0]);
}

In an attempt to create a global hook using WH_KEYBOARD.

The problem I have is it doesn't work. It works globally with
WH_KEYBOARD_LL but as soon as I use WH_KEYBOARD it doesn't work at
all. This meaning it doesn't capture keyboard strokes in either the
windows form or anywhere else. Now Dino's code worked fine for a
local hook (aka the form) but I want a global or system hook.

Now I have the class he wrote in an external DLL but there must be
something else i am missing. If anyone has any suggestions they would
be very much appreciated.

Thanks very much.

Dino Esposito modified project and my test windows form can be found
here

http://scaninc.ca/hook/globalhook.zip

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