private bool OnNcHitTest(ref Message m, bool contentControl)
{
int x = NativeUtility.LOWORD(m.LParam);
int y = NativeUtility.HIWORD(m.LParam);
var clientLocation = PointToClient(new Point(x, y));
var gripBounds = new GripBounds(contentControl ? Content.ClientRectangle : ClientRectangle);
IntPtr transparent = new IntPtr(Constants.HTTRANSPARENT);
if (_resizableTop)
{
if (_resizableLeft && gripBounds.TopLeft.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTTOPLEFT;
return(true);
}
if (!_resizableLeft && gripBounds.TopRight.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTTOPRIGHT;
return(true);
}
if (gripBounds.Top.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTTOP;
return(true);
}
}
else
{
if (_resizableLeft && gripBounds.BottomLeft.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTBOTTOMLEFT;
return(true);
}
if (!_resizableLeft && gripBounds.BottomRight.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTBOTTOMRIGHT;
return(true);
}
if (gripBounds.Bottom.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTBOTTOM;
return(true);
}
}
if (_resizableLeft && gripBounds.Left.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTLEFT;
return(true);
}
if (!_resizableLeft && gripBounds.Right.Contains(clientLocation))
{
m.Result = contentControl ? transparent : (IntPtr)Constants.HTRIGHT;
return(true);
}
return(false);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case ((int)WM.COMMAND + (int)WM.REFLECT):
{
switch (NativeUtility.HIWORD(m.WParam))
{
case Constants.CBN_DROPDOWN:
ShowDropDownCore();
return;
}
}
break;
}
base.WndProc(ref m);
}
private bool OnNcHitTest(ref Message m)
{
int x = NativeUtility.LOWORD(m.LParam);
int y = NativeUtility.HIWORD(m.LParam);
var point = PointToClient(new Point(x, y));
var rc = ClientRectangle;
bool isMaximized = WindowState == FormWindowState.Maximized;
if (_isInMulticontrolMode)
{
if (isMaximized)
{
if ((new Rectangle(
rc.X, rc.Y,
rc.Width, Renderer.FloatTitleHeight)).Contains(point))
{
m.Result = (IntPtr)Constants.HTCAPTION;
return(true);
}
}
else
{
if ((new Rectangle(
rc.X + Renderer.FloatBorderSize,
rc.Y + Renderer.FloatBorderSize,
rc.Width - Renderer.FloatBorderSize * 2,
Renderer.FloatTitleHeight)).Contains(point))
{
m.Result = (IntPtr)Constants.HTCAPTION;
return(true);
}
}
}
if (isMaximized)
{
return(false);
}
var grip = new GripBounds(rc);
if (grip.TopLeft.Contains(point))
{
m.Result = (IntPtr)Constants.HTTOPLEFT;
return(true);
}
if (grip.TopRight.Contains(point))
{
m.Result = (IntPtr)Constants.HTTOPRIGHT;
return(true);
}
if (grip.Top.Contains(point))
{
m.Result = (IntPtr)Constants.HTTOP;
return(true);
}
if (grip.BottomLeft.Contains(point))
{
m.Result = (IntPtr)Constants.HTBOTTOMLEFT;
return(true);
}
if (grip.BottomRight.Contains(point))
{
m.Result = (IntPtr)Constants.HTBOTTOMRIGHT;
return(true);
}
if (grip.Bottom.Contains(point))
{
m.Result = (IntPtr)Constants.HTBOTTOM;
return(true);
}
if (grip.Left.Contains(point))
{
m.Result = (IntPtr)Constants.HTLEFT;
return(true);
}
if (grip.Right.Contains(point))
{
m.Result = (IntPtr)Constants.HTRIGHT;
return(true);
}
return(false);
}