You still have not clearly explained what the use of the Icon and the Form is
Quote:
I want to allow dragging of form on mouse left click down everywhere inside the form but that form should be draggable within specified location of window (i.e within windows explorer window)
This statement implies you have two Forms, and that one is dragged within the bounds of the other. Please try and describe clearly what you are trying to achieve, and, why are you trying to change the appearance of what the user sees in an Explorer Window ? Describe exactly what your app creates. The use of "me.topmost" suggests this is a VB Project ... is that correct ?
«There is a spectrum, from "clearly desirable behaviour," to "possibly dodgy behavior that still makes some sense," to "clearly undesirable behavior." We try to make the latter into warnings or, better, errors. But stuff that is in the middle category you don’t want to restrict unless there is a clear way to work around it.» Eric Lippert, May 14, 2008