BackgroundTransparent

Gets or sets the background of the transparent control.

[Visual Basic]
Public Property BackgroundTransparent As Boolean

[C#]
public bool BackgroundTransparent

Observations:

Of default such property it is set up on False.

If the member alpha of the color of a graphical element of the control comes set up on the zero such element does not not only come designed but the area from occupied it becomes transparent.

In the example of the figure of over on the form it has been inserted a PictureBox with over partially overlapped a Knob with the values of the set up property therefore:

[Visual Basic]

Me.Knob1.Appearance.ArcEnd = 290.0!
Me.Knob1.Appearance.ArcStart = 250.0!
Me.Knob.Appearance.BackgroundScale.BackgroundScale = False
Me.Knob1.Appearance.BackgroundScale.BackgroundScaleWidth = 50
Me.Knob1.Appearance.BackgroundScale.FirstColor = System.Drawing.Color.Blue
Me.Knob1.Appearance.BackgroundScale.FourthColor = System.Drawing.Color.Red
Me.Knob1.Appearance.BackgroundScale.Gradient = True
Me.Knob1.Appearance.BackgroundScale.SecondColor = System.Drawing.Color.Green
Me.Knob1.Appearance.BackgroundScale.ThirdColor = System.Drawing.Color.Yellow
Me.Knob1.Appearance.BorderProperties.BorderLight = System.Drawing.Color.White
Me.Knob1.Appearance.BorderProperties.BorderShadow = System.Drawing.Color.Black
Me.Knob1.Appearance.BorderProperties.BorderWidth = CType(10, Short)
Me.Knob1.Appearance.CursorProperties.CursorColor = System.Drawing.Color.Blue
Me.Knob1.Appearance.CursorProperties.CursorType = LabDevTools.CursorProperties.CursorForm.Triangular
Me.Knob1.Appearance.CursorProperties.CursorWidth = 3
Me.Knob1.Appearance.CursorProperties.TraceCursor = False
Me.Knob1.Appearance.Divisions.ArcBaseColor = System.Drawing.Color.Red
Me.Knob1.Appearance.Divisions.DivisionLength = CType(10, Short)
Me.Knob1.Appearance.Divisions.Divisions = True
Me.Knob1.Appearance.Divisions.DivisionWidth = CType(5, Short)
Me.Knob1.Appearance.Divisions.MayorColor = System.Drawing.Color.Red
Me.Knob1.Appearance.Divisions.MediumColor = System.Drawing.Color.FromArgb(CType(0, Byte), CType(255, Byte), CType(64, Byte))
Me.Knob1.Appearance.Divisions.MinorColor = System.Drawing.Color.Blue
Me.Knob1.Appearance.Divisions.NumberOfDivisions = CType(10, Short)
Me.Knob1.Appearance.FrontColor = System.Drawing.Color.Transparent
Me.Knob1.Appearance.GradientStyle = System.Drawing.Drawing2D.LinearGradientMode.ForwardDiagonal
Me.Knob1.Appearance.Labels = True
Me.Knob1.Appearance.Radius = 62.0!
Me.Knob1.Appearance.Style = LabDevTools.Appearance.StyleKnob.Style3D
Me.Knob1.BackColor = System.Drawing.Color.Transparent
Me.Knob1.BackgroundTransparent = True
Me.Knob1.Cursor = System.Windows.Forms.Cursors.Hand
Me.Knob1.Font = New System.Drawing.Font("Microsoft Sans Serif", 8.25!)
Me.Knob1.ForeColor = System.Drawing.Color.Black
Me.Knob1.KeyInput.Increment = 1.0!
Me.Knob1.KeyInput.KeyDecrement = LabDevTools.KeyInput.Keys.PageDown
Me.Knob1.KeyInput.KeyIncrement = LabDevTools.KeyInput.Keys.PageUp
Me.Knob1.KeyInput.KeyInput = True
Me.Knob1.Language = LabDevTools.Knob.LocalLanguage.Italian
Me.Knob1.Location = New System.Drawing.Point(768, 240)
Me.Knob1.Name = "Knob1"
Me.Knob1.ScaleMeasurement.Format = "Default"
Me.Knob1.ScaleMeasurement.Invert = False
Me.Knob1.ScaleMeasurement.Unit = ""
Me.Knob1.Size = New System.Drawing.Size(216, 216)
Me.Knob1.TabIndex = 14
Me.Knob1.Values.Max = 10
Me.Knob1.Values.Max_Visible = True
Me.Knob1.Values.Min = 0
Me.Knob1.Values.Min_Visible = True
Me.Knob1.Values.Tooltip = True
Me.Knob1.Values.Value = 0
Me.Knob1.Values.ValueInString = "0"

[C#]

this.knob1.Appearance.ArcEnd = 290;

this.knob1.Appearance.ArcStart = 250;

this.knob1.Appearance.BackgroundScale.BackgroundScale = false;

this.knob1.Appearance.BackgroundScale.BackgroundScaleWidth = 50;

this.knob1.Appearance.BackgroundScale.FirstColor = System.Drawing.Color.Blue;

this.knob1.Appearance.BackgroundScale.FourthColor = System.Drawing.Color.Red;

this.knob1.Appearance.BackgroundScale.Gradient = true;

this.knob1.Appearance.BackgroundScale.SecondColor = System.Drawing.Color.Green;

this.knob1.Appearance.BackgroundScale.ThirdColor = System.Drawing.Color.Yellow;

this.knob1.Appearance.BorderProperties.BorderLight = System.Drawing.Color.White;

this.knob1.Appearance.BorderProperties.BorderShadow = System.Drawing.Color.Black;

this.knob1.Appearance.BorderProperties.BorderWidth = 10;

this.knob1.Appearance.CursorProperties.CursorColor = System.Drawing.Color.Blue;

this.knob1.Appearance.CursorProperties.CursorType = LabDevTools.CursorProperties.CursorForm.Triangular;

this.knob1.Appearance.CursorProperties.CursorWidth = 3;

this.knob1.Appearance.CursorProperties.TraceCursor = false;

this.knob1.Appearance.Divisions.ArcBaseColor = System.Drawing.Color.Red;

this.knob1.Appearance.Divisions.DivisionLength = 10;

this.knob1.Appearance.Divisions.Divisions = true;

this.knob1.Appearance.Divisions.DivisionWidth = 5;

this.knob1.Appearance.Divisions.MayorColor = System.Drawing.Color.Red;

this.knob1.Appearance.Divisions.MediumColor = System.Drawing.Color.FromArgb(0, 255,64);

this.knob1.Appearance.Divisions.MinorColor = System.Drawing.Color.Blue;

this.knob1.Appearance.Divisions.NumberOfDivisions = 10;

this.knob1.Appearance.FrontColor = System.Drawing.Color.Transparent;

this.knob1.Appearance.GradientStyle = System.Drawing.Drawing2D.LinearGradientMode.ForwardDiagonal;

this.knob1.Appearance.Labels = true;

this.knob1.Appearance.Radius = 62;

this.knob1.Appearance.Style = LabDevTools.Appearance.StyleKnob.Style3D;

this.knob1.BackColor = System.Drawing.Color.Transparent;

this.knob1.BackgroundTransparent = true;

this.knob1.Cursor = System.Windows.Forms.Cursors.Hand;

this.knob1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25);

this.knob1.ForeColor = System.Drawing.Color.Black;

this.knob1.KeyInput.Increment = 1;

this.knob1.KeyInput.KeyDecrement = LabDevTools.KeyInput.Keys.PageDown;

this.knob1.KeyInput.KeyIncrement = LabDevTools.KeyInput.Keys.PageUp;

this.knob1.KeyInput.KeyInput = true;

this.knob1.Language = LabDevTools.Knob.LocalLanguage.Italian;

this.knob1.Location = new System.Drawing.Point(768, 240);

this.knob1.Name = "knob1";

this.knob1.ScaleMeasurement.Format = "Default";

this.knob1.ScaleMeasurement.Invert = false;

this.knob1.ScaleMeasurement.Unit = "";

this.knob1.Size = new System.Drawing.Size(216, 216);

this.knob1.TabIndex = 14;

this.knob1.Values.Max = 10;

this.knob1.Values.Max_Visible = true;

this.knob1.Values.Min = 0;

this.knob1.Values.Min_Visible = true;

this.knob1.Values.Tooltip = true;

this.knob1.Values.Value = 0;

this.knob1.Values.ValueInString = "0";

BackgroundTransparent

[Visual Basic]Public Property BackgroundTransparent As Boolean

[C#]public bool BackgroundTransparent

Observations:

[Visual Basic]
Public Property BackgroundTransparent As Boolean

[C#]
public bool BackgroundTransparent