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How did it get so late so soon? :confused:

In my defence though, since I came accross this, others would have done so too - and the reply as it stood would (and probably did) have caused more...

GET_X_LPARAM is in Windowsx.h

But from the MS DOC:
Important Do not use the LOWORD or HIWORD macros to extract the x- and y- coordinates of the cursor position because these macros return incorrect results on systems with...