Problem with window size (NCCALCSIZE) when restore

[mayanc]

Hi,

I'm building a skin for my form in c# and I have a little problem.
I'm using NCCALCSIZE to resize my client size and give painting space
for my custom borders.

For some reason, the form is getting smaller every time I restoring it
from minimize / maximize states.

This is the code for my NCCALCSIZE:

NativeMethods.NCCALCSIZE_PARAMS ncParams =
(NativeMethods.NCCALCSIZE_PARAMS)m.GetLParam(typeo f(NativeMethods.NCCALCSIZE_PARAMS));
Rectangle proposed = ncParams.rectProposed.Rect;

proposed = Rectangle.FromLTRB(
proposed.Left + BorderLeft.Width,
proposed.Top + BorderTop.Height,
proposed.Right - BorderRight.Width,
proposed.Bottom - BorderBottom.Height );

ncParams.rectProposed =
NativeMethods.RECT.FromRectangle(proposed);

Marshal.StructureToPtr(ncParams, m.LParam, false);

Should I handle another winproc to save my form size?

Thanks in advance,
Mayan