private void DrawUpDownButton()
{
bool mouseOver = false;
bool mousePress = LeftKeyPressed();
bool mouseInUpButton = false;
Rectangle clipRect = _upDownButton.ClientRectangle;
RECT windowRect = new RECT();
Point cursorPoint = new Point();
GetCursorPos(ref cursorPoint);
GetWindowRect(_upDownButtonWnd, ref windowRect);
mouseOver = PtInRect(ref windowRect, cursorPoint);
cursorPoint.X -= windowRect.Left;
cursorPoint.Y -= windowRect.Top;
mouseInUpButton = cursorPoint.Y < clipRect.Height / 2;
using (Graphics g = Graphics.FromHwnd(_upDownButtonWnd))
{
UpDownButtonPaintEventArgs e =
new UpDownButtonPaintEventArgs(
g,
clipRect,
mouseOver,
mousePress,
mouseInUpButton);
_owner.OnPaintUpDownButton(e);
}
}