Hi,
I made a usercontrol which will become a kind of chart. I want to draw a ruler (vertical line on the chart, where the mouse pointer is) when the mouse is moved around over my usercontrol.
I manage to draw the ruler, but I still need a method to grab the bitmap under the ruler (I mean not the whole bitmap, just the line under the ruler), so I can place it back whenever the ruler's position changes.
this is my code:
I would like to use a bitmap that is available as long as the instance of my usercontrol exists.
Running the code above results in continuous drawing of rulers wherever the mouse comes, until the whole control is filled with rulers.
How should I do this?
I made a usercontrol which will become a kind of chart. I want to draw a ruler (vertical line on the chart, where the mouse pointer is) when the mouse is moved around over my usercontrol.
I manage to draw the ruler, but I still need a method to grab the bitmap under the ruler (I mean not the whole bitmap, just the line under the ruler), so I can place it back whenever the ruler's position changes.
this is my code:
Code:
Public Class UserControl1
Private Sub ShapeContainer1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ShapeContainer1.MouseMove
' Draw the ruler
ShapeContainer1.CreateGraphics.DrawLine(New Pen(Color.FromArgb(255, 255, 0), 1), e.X, 1, e.X, ShapeContainer1.Height - 2)
End Sub
Private Sub ShapeContainer1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles ShapeContainer1.Resize
Border.Width = ShapeContainer1.Width - 1
Border.Height = ShapeContainer1.Height - 1
End Sub
Public Sub New()
' This call is required by the designer.
InitializeComponent()
' Add any initialization after the InitializeComponent() call.
Me.ShapeContainer1.BackColor = Color.Black
Me.Border.Left = 0
Me.Border.Top = 0
Me.Border.Width = ShapeContainer1.Width - 1
Me.Border.Height = ShapeContainer1.Height - 1
Me.BackColor = Color.Black
End Sub
End ClassRunning the code above results in continuous drawing of rulers wherever the mouse comes, until the whole control is filled with rulers.
How should I do this?