/// <summary>
/// Processes incoming Windows Messages.
/// </summary>
/// <param name="m">The Windows <see cref="T:System.Windows.Forms.Message" /> to process.</param>
protected override void WndProc(ref Message m)
{
if (!this.DesignMode)
{
switch (m.Msg)
{
//Remove NoClientArea
case NativeConstants.WM_NCCALCSIZE:
if (m.WParam == IntPtr.Zero)
{
NativeStructs.RECT rect = (NativeStructs.RECT)m.GetLParam(typeof(NativeStructs.RECT));
Rectangle drawingRect = rect.ToRectangle();
drawingRect.Inflate(8, 8);
Marshal.StructureToPtr(new NativeStructs.RECT(drawingRect), m.LParam, true);
}
else
{
NativeStructs.NCCALCSIZE_PARAMS calcSizeParams = (NativeStructs.NCCALCSIZE_PARAMS)m.GetLParam(typeof(NativeStructs.NCCALCSIZE_PARAMS));
Rectangle drawingRect = calcSizeParams.rgrc0.ToRectangle();
drawingRect.Inflate(8, 8);
calcSizeParams.rgrc0 = new NativeStructs.RECT(drawingRect);
Marshal.StructureToPtr(calcSizeParams, m.LParam, true);
}
m.Result = IntPtr.Zero;
break;
//Prevent activation of the nonclientarea
case NativeConstants.WM_NCACTIVATE:
m.Result = IntPtr.Zero;
return;
}
base.WndProc(ref m);
switch (m.Msg)
{
case NativeConstants.WM_SIZE:
m.Result = IntPtr.Zero;
return;
}
}
else
{
base.WndProc(ref m);
}
}
protected override void WndProc(ref Message m)
{
switch ((NativeEnums.WM)m.Msg)
{
case NativeEnums.WM.NCCALCSIZE:
//Crop the form to remove the windows borders
if (m.WParam.Equals(IntPtr.Zero))
{
NativeStructs.RECT rc = (NativeStructs.RECT)m.GetLParam(typeof(NativeStructs.RECT));
Rectangle r = CropForm(rc);
Marshal.StructureToPtr(new NativeStructs.RECT(r), m.LParam, true);
}
else
{
NativeStructs.NCCALCSIZE_PARAMS csp = (NativeStructs.NCCALCSIZE_PARAMS)m.GetLParam(typeof(NativeStructs.NCCALCSIZE_PARAMS));
Rectangle r = CropForm(csp.rgrc0);
csp.rgrc0 = new NativeStructs.RECT(r);
Marshal.StructureToPtr(csp, m.LParam, true);
}
m.Result = IntPtr.Zero;
return;
case NativeEnums.WM.SIZE:
if (this.WindowState != lastState)
{
lastState = this.WindowState;
if (this.WindowState == FormWindowState.Maximized)
{
OverrideSize = this.RestoreBounds.Size;
}
NativeMethods.SetWindowPos(this.Handle, IntPtr.Zero, 0, 0, 0, 0, NativeEnums.SWP.FRAMECHANGED | NativeEnums.SWP.NOACTIVATE | NativeEnums.SWP.NOMOVE | NativeEnums.SWP.NOSIZE | NativeEnums.SWP.NOZORDER);
this.Refresh();
}
break;
}
base.WndProc(ref m);
}
