Drag and Drop

[session]

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!

[hellswraith]

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.

[session]

this is what i will do...

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.

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.

[CornedBee]

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

In any case, you could override PreProcessMessage.