Drag and Drop

I have a non-rectangle form without title/caption bar. I wanna allow user to move the form by clicking on anywhere on the form and move it, how do i do that?

Thanks for the help! :)

You are going to probably have to use the mouse down event to enter a loop that polls where the mouse is and move the form.

this is what i will do...

Code:

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Trap MouseDown: 
set a flag stating the mouse is depressed, set the current
position of mouse (properties on the MouseEventArgs object).

Trap MouseMove:
if flag is set, calculate the difference in the current position of the
mouse & the previous position of the mouse and move the form
accordingly.  Set previous location to current location.

Trap Mouseup:  toggle the flag.

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but i dunno how to do this...


set the current
position of mouse (properties on the MouseEventArgs object)

Trap MouseMove: if flag is set, calculate the difference in the
current position of the mouse & the previous position of the
mouse and move the form accordingly. Set previous location to
current location.

Maybe there is an equivalent in C# of catching WM_NCHITTEST?

In any case, you could override PreProcessMessage.