🚀 go-pugleaf

In article <1992Oct15.053454.8491@engage.pko.dec.com> marshall@tfh.enet.dec.com (Hunting the Snark) writes:
>I would like to imitate an interesting property of the Clock applet in Windows
>3.1 (I don't remember now if the one in 3.0 did this). When you select the "No
>Title" setting, holding the left mouse button down in the clock window puts it
>into the move mode the same as in the caption of of a normal window. How does 
>it do that? Is there an easy way (some undocumented windows fuction) or do they
>do it "the hard way" (LbuttonDown, SetCapture, GetDC, MouseMove, etc.) Is it 
>significant that it only does this when there is no title bar?

Yes, it's true!  There is another undocumented windows function called
"ImplementCoolClockBehaviorOnlyForMSApplications" that only we know
about.




Seriously, look up the WM_NCHITTEST message.  If the user is clicking on
your client area (found by calling DefWindowProc and noting its return
value) then you would want to return HTCAPTION - i.e. windows should treat
this click as if it happened on the title bar.

There are other issues like handling double-clicks and you probably
don't want to let the user move your window if it is maximized, but
this should be enough to get you started.

Matt "not a spokesbeing for microsoft" Squires
mattsq@microsoft.com