How to make a keyboard hook global across processes?

In order for your keyboard hook to be accessible from all processes, it has to be placed in a DLL which will then be loaded into each process' address space. One important thing to keep in mind is that since each instance of the DLL is loaded in a separate process, each will have its own copy of any global variables in the DLL. If you need to share data between these instances, the simplest way is to create a shared data segment in the DLL.

The following code is from an RSI monitoring program I wrote.

Avoid codeproject samples. ( plenty of bugs, bad copies of MSDN ).

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