Disable the blue highlighting for tabs?

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Um... SetWindowLong needs an int as a parameter. If I do this, will Blitz automatically convert the longint to an int, or is it going to cause a memory leak or a crash or something?

SetWindowLong%(hWnd%, nIndex%, dwNewLong%):"SetWindowLong"

And if I can't do that, then how can I access this function? Am I stuck because of limitations of how Blitz allows me to access DLLs?

Also, just where am I supposed to find the values for all these constants? MSDN conveniently leaves the values out, and I keep having to search for them with google.