public TransparentForm()
{
InitializeComponent();
//setting
this.ShowInTaskbar = false;
SetStyle(ControlStyles.UserPaint, true);
SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.BackColor = Color.DarkMagenta;
this.TransparencyKey = this.BackColor;
this.TopMost = true;
this.Opacity = 0.5;
screenLeft = SystemInformation.VirtualScreen.Left;
screenTop = SystemInformation.VirtualScreen.Top;
screenWidth = SystemInformation.VirtualScreen.Width;
screenHeight = SystemInformation.VirtualScreen.Height;
this.Size = new Size(screenWidth, screenHeight);
//end of setting
this.Paint += Form2_Paint;
pointStart = null;
//time lable
timeL.BackColor = Color.LightBlue;
timeL.Hide();
//capture panel
capturePanel = new MyCapturePanel(this)
{
};
capturePanel.BackColor = Color.Green;
capturePanel.Visible = false;
capturePanel.btnStartCapture = btnStartCapture;
//start capture button
btnStartCapture = new Button();
btnStartCapture.BackColor = Color.DeepPink;
btnStartCapture.Click += B_ClickAsync;
btnStartCapture.Visible = false;
btnStartCapture.Text = "OK";
Controls.Add(capturePanel);
Controls.Add(btnStartCapture);
action = Action.OK;
}
private void Form2_Paint(object sender, PaintEventArgs e)
{
g = e.Graphics;
Point pointA = new Point();
Point pointB = new Point();
//
DrawAPlus(pointCurrent, g);
//
if (isMouseDrag)
{
//drawing start point
if (pointStart != null && !pointCurrent.Equals((Point)pointStart))
{
var _ptStart = (Point)pointStart;
DrawAPlus(_ptStart, g);
using (Brush brush = new SolidBrush(this.BackColor))
{
var varStart = new Point();
var varEnd = new Point();
if (_ptStart.Y > pointCurrent.Y)
{
varStart = pointCurrent;
varEnd = _ptStart;
}
else
{
varStart = _ptStart;
varEnd = pointCurrent;
}
if (varStart.X > varEnd.X)
{
//swapping
int i = varStart.X;
varStart.X = varEnd.X;
varEnd.X = i;
}
if (!capturePanel.IsDisposed)
{
capturePanel.Visible = false;
capturePanel.Dispose();
}
capturePanel = new MyCapturePanel(this)
{
Location = varStart,
Size = new Size(Math.Abs(varEnd.X - varStart.X), Math.Abs(varEnd.Y - varStart.Y)),
BackColor = Color.DarkMagenta,
btnStartCapture = btnStartCapture
};
if (!Controls.Contains(capturePanel))
{
Controls.Add(capturePanel);
}
capturePanel.Visible = true;
//using (Button b = new Button())
//{
// Button b = new Button()
// {
// Location = new Point(0, 0),
// };
// if (!capturePanel.Controls.Contains(b))
// {
// capturePanel.Controls.Add(b);
// b.Show();
// }
// b.Click += B_ClickAsync;
//}
//g.FillRectangle(brush,
// new Rectangle(varStart.X, varStart.Y,
// Math.Abs(varEnd.X - varStart.X), Math.Abs(varEnd.Y - varStart.Y)));
}
}
}
}