public frmMain()
{
this.Text = "Paint";
var x = new CanvasControl();
Point prevPoint = null;
x.ClearOnResize = false;
var g = x.CreateGraphics();
var pen = new Pen(new SolidBrush(Color.Black));
x.MouseDown += (s, ev) =>
{
IsMouseDown = true;
prevPoint = new Point()
{
X = (int)ev.layerX, Y = (int)ev.layerY
};
};
x.MouseUp += (s, ev) =>
{
if (IsMouseDown)
{
IsMouseDown = false;
var current = new Point()
{
X = (int)ev.layerX, Y = (int)ev.layerY
};
g.DrawLine(pen, prevPoint, current);
prevPoint = current;
}
};
x.MouseMove += (s, ev) =>
{
if (!IsMouseDown)
{
return;
}
var current = new Point()
{
X = (int)ev.layerX, Y = (int)ev.layerY
};
g.DrawLine(pen, prevPoint, current);
prevPoint = current;
};
x.SetBoundsFull();
this.StartPosition = FormStartPosition.Center;
this.LinkResize(x, true);
}