protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (leftFlag)
{
Point mouseSet = Control.MousePosition;
//设置移动后的位置
mouseSet.Offset(mouseOff.X, mouseOff.Y);
Location = mouseSet;
return;
}
if (TitleRect.Contains(e.Location))
{
DetectionMousePoint(e.Location);
this.Invalidate(TitleRect);
return;
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (e.Button != MouseButtons.Left)
{
return;
}
if (!TitleRect.Contains(e.Location))
{
return;
}
if (DetectionMousePoint(e.Location))
{
ManageFormState();
return;
}
mouseOff = new Point(-e.X, -e.Y);
leftFlag = true;
}
/// <summary>
/// 拖动窗口大小。
/// </summary>
/// <param name="m"></param>
protected virtual void DragFormSize(ref Message m)
{
bool isR = false;
int param = m.LParam.ToInt32();
Point point = new Point(param & 0xFFFF, param >> 16);
point = PointToClient(point);
if (this.WindowState != FormWindowState.Maximized)
{
if (IsResize)
{
if (point.X <= 3)
{
if (point.Y <= 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTTOPLEFT;
isR = true;
}
else if (point.Y > Height - 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTBOTTOMLEFT;
isR = true;
}
else
{
m.Result = (IntPtr)WM_NCHITTEST.HTLEFT;
isR = true;
}
}
else if (point.X >= Width - 3)
{
if (point.Y <= 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTTOPRIGHT;
isR = true;
}
else if (point.Y >= Height - 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTBOTTOMRIGHT;
isR = true;
}
else
{
m.Result = (IntPtr)WM_NCHITTEST.HTRIGHT;
isR = true;
}
}
else if (point.Y <= 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTTOP;
isR = true;
}
else if (point.Y >= Height - 3)
{
m.Result = (IntPtr)WM_NCHITTEST.HTBOTTOM;
isR = true;
}
}
}
if (!isR)
{
if (TitleRect.Contains(point))
{
if (!this.MaximizeBox ||
CloseRect.Contains(point) ||
MaxRect.Contains(point) ||
MiniRect.Contains(point) ||
SkinRect.Contains(point))
{
return;
}
m.Result = (IntPtr)2;
}
}
}
