LOOK HERE User Defined Static Control that hides!!!

[dedndave]

WM_MOUSEMOVE is only sent to the window that has the cursor over it
if the cursor is over a child, it is only sent to that child, etc
if you capture the mouse with SetCapture, then things are different

[xandaz]

    yeah dave. It seems it only sends the parent window a limited range of messages. Meaningly those that are useful. Subclassed it and it works. but i came across more problems to solve. Thanks