Please see my comment to the question, which is quite incorrect. Why asking incorrect questions if you can always simply read about each property/method?
Opacity has nothing to do with visibility, not in any sense, it is pretty much like color component and ARGS color; not quite, but just read about it:
http://msdn.microsoft.com/en-us/library/system.windows.forms.form.opacity%28v=vs.110%29.aspx[
^].
And calling
Hide() is the same as assignment false to
Visible. Again, there is a clear statement which is put here:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.hide%28v=vs.110%29.aspx[
^].
Please, don't ask such questions. This kind of laziness is too much. Read the documentation instead.
—SA
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