private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
ClosePress = CloseButton.IsVisible(e.X, e.Y) && e.Button == MouseButtons.Left;
MinPress = MinButton.IsVisible(e.X, e.Y) && e.Button == MouseButtons.Left;
FormDrag = TitleBar.IsVisible(e.X, e.Y) &&
e.Button == MouseButtons.Left &&
ClosePress == false && MinPress == false;
if (FormDrag)
{
this.Capture = false;
Message msg = Message.Create(Handle, WM_NCLBUTTONDOWN, (IntPtr)HT_CAPTION, IntPtr.Zero);
WndProc(ref msg);
}
Invalidate();
}
private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
bool OverClose, OverMin;
OverClose = CloseButton.IsVisible(e.X, e.Y);
OverMin = MinButton.IsVisible(e.X, e.Y);
if (OverClose && ClosePress && e.Button == MouseButtons.Left)
{
this.Close();
}
if (OverMin && MinPress && e.Button == MouseButtons.Left)
{
this.WindowState = FormWindowState.Minimized;
}
if (e.Button == MouseButtons.Right && TitleBar.IsVisible(e.X, e.Y))
{
if (OverClose == false && OverMin == false)
{
const int WM_GETSYSMENU = 0x313;
if (e.Button == MouseButtons.Right)
{
Point pos = this.PointToScreen(new Point(e.X, e.Y));
IntPtr hPos = (IntPtr)((int)((pos.Y * 0x10000) | (pos.X & 0xFFFF)));
Message msg = Message.Create(this.Handle, WM_GETSYSMENU, IntPtr.Zero, hPos);
WndProc(ref msg);
}
}
}
ClosePress = false;
MinPress = false;
FormDrag = false;
Invalidate();
}
