public static extern int DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMarInset);
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
switch (m.Msg)
{
case Constants.WM_NCCALCSIZE:
if (Utilities.AeroEnabled)
{
int value = 2;
Utilities.DwmSetWindowAttribute(Handle, 2, ref value, 4);
MARGINS margins = new MARGINS()
{
leftWidth = 1,
topHeight = 1,
rightWidth = 1,
bottomHeight = 1
};
Utilities.DwmExtendFrameIntoClientArea(Handle, ref margins);
if (!DesignMode)
if (m.WParam.Equals(IntPtr.Zero))
{
RECT structrect = (RECT)m.GetLParam(typeof(RECT));
Rectangle normalrect = structrect.ToRectangle();
normalrect.Inflate(Constants.AeroExtraBorder, Constants.AeroExtraBorder);
Marshal.StructureToPtr(new RECT(normalrect), m.LParam, true);
}
else
{
NCCALCSIZE_PARAMS csp = (NCCALCSIZE_PARAMS)m.GetLParam(typeof(NCCALCSIZE_PARAMS));
Rectangle normalrect = csp.rgrc0.ToRectangle();
normalrect.Inflate(Constants.AeroExtraBorder, Constants.AeroExtraBorder);
csp.rgrc0 = new RECT(normalrect);
Marshal.StructureToPtr(csp, m.LParam, true);
}
m.Result = IntPtr.Zero;
}
break;
case Constants.WM_NCLBUTTONDOWN:
OnNonClientLButtonDown(m.LParam);
break;
case Constants.WM_NCLBUTTONUP:
OnNonClientLButtonUp(m.LParam);
break;
case Constants.WM_NCRBUTTONUP:
OnNonClientRButtonUp(m.LParam);
break;
case Constants.WM_NCLBUTTONDBLCLK:
OnNonClientDoubleClick(m.LParam);
break;
case Constants.WM_NCACTIVATE:
formActive = m.WParam.ToInt32() != 0;
Invalidate(true);
break;
case Constants.WM_NCHITTEST:
m.Result = NonClientHitTest(m.LParam);
break;
case Constants.WM_NCMOUSEMOVE:
Invalidate(true);
break;
case Constants.WM_NCMOUSELEAVE:
foreach (Button button in buttons)
button.Hovered = Button.ButtonHoverState.None;
Invalidate(true);
break;
case Constants.WM_MOVE:
Rectangle bounds = Screen.GetWorkingArea(this);
bounds.Location = Point.Empty;
MaximizedBounds = bounds;
break;
case Constants.WM_SIZE:
if (m.WParam.ToInt32() == 2)
{
if (MaximumSize != Screen.GetWorkingArea(this).Size)
{
sendMessage(Constants.WM_SYSCOMMAND, (IntPtr)Constants.SpecialCommands.SC_RESTORE, IntPtr.Zero);
MaximumSize = Screen.GetWorkingArea(this).Size;
sendMessage(Constants.WM_SYSCOMMAND, (IntPtr)Constants.SpecialCommands.SC_MAXIMIZE, IntPtr.Zero);
}
}
else if (MaximumSize == Screen.GetWorkingArea(this).Size)
{
MaximumSize = Size.Empty;
}
break;
}
}
