Visual Basic .NET Language GDI+ Draw Shapes
Example
To start drawing a shape you need to define a pen object
The Pen accepts two parameters:
- Pen Color or Brush
- Pen Width
The Pen Object is used to create an outline of the object you want to draw
After Defining the Pen you can set specific Pen Properties
Dim pens As New Pen(Color.Purple)
pens.DashStyle = DashStyle.Dash 'pen will draw with a dashed line
pens.EndCap = LineCap.ArrowAnchor 'the line will end in an arrow
pens.StartCap = LineCap.Round 'The line draw will start rounded
'*Notice* - the Start and End Caps will not show if you draw a closed shape
Then use the graphics object you created to draw the shape
Private Sub GraphicForm_Paint(sender As Object, e As PaintEventArgs) Handles MyBase.Paint
Dim pen As New Pen(Color.Blue, 15) 'Use a blue pen with a width of 15
Dim point1 As New Point(5, 15) 'starting point of the line
Dim point2 As New Point(30, 100) 'ending point of the line
e.Graphics.DrawLine(pen, point1, point2)
e.Graphics.DrawRectangle(pen, 60, 90, 200, 300) 'draw an outline of the rectangle
By default, the pen's width is equal to 1
Dim pen2 as New Pen(Color.Orange) 'Use an orange pen with width of 1
Dim origRect As New Rectangle(90, 30, 50, 60) 'Define bounds of arc
e.Graphics.DrawArc(pen2, origRect, 20, 180) 'Draw arc in the rectangle bounds
End Sub
