clear backstyle for lable control?

[JD]

Is it possible to have a clear backstyle for a lable
control? I want to write some text on a lable and I want
the background of the label to match the color of the
control I am placing the label on where the color of that
control will be changing will be changing. Is this
doable? If not, is there a control I can do this with? to
have a clear/see through backstyle?

Thanks,
JD

[Qwert]

Yes it is possible. Add a new user control file to your project and
copy/replace the following code. You now can create label controls of type
'TransparentLab el' which will be transparent:
Imports System.Componen tModel

Public Class TransparentLabe l
Inherits System.Windows. Forms.UserContr ol

#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer.
InitializeCompo nent()

'Add any initialization after the InitializeCompo nent() call

End Sub

'UserControl1 overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Disp ose()
End If
End If
MyBase.Dispose( disposing)
End Sub

'Required by the Windows Form Designer
Private components As System.Componen tModel.IContain er

'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnos tics.DebuggerSt epThrough()> Private Sub
InitializeCompo nent()
'
'TransparentLab el
'
Me.BackColor = System.Drawing. Color.DeepPink
Me.Name = "TransparentLab el"
Me.Size = New System.Drawing. Size(256, 46)

End Sub

#End Region

Private Txt As String
Private AutoSze As Boolean = True

<Bindable(True) , Category("Appea rance"), _
DesignerSeriali zationVisibilit y(DesignerSeria lizationVisibil ity.Visible),
_
Browsable(True) > _
Public Overrides Property Text() As String
Get
Return Txt
End Get
Set(ByVal Value As String)
Txt = Value
Me.Refresh()
End Set
End Property
<Category("Beha vior"), DefaultValue(Tr ue)> Public Property AutoSize() As
Boolean
Get
Return AutoSze
End Get
Set(ByVal Value As Boolean)
AutoSze = Value
Me.Refresh()
End Set
End Property

Private Sub TransparentLabe l_Paint(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles MyBase.Paint
Try
If AutoSze = True Then
Dim Siz As Drawing.SizeF = e.Graphics.Meas ureString(Txt,
Font)
Me.Width = Siz.Width + 1
Me.Height = Siz.Height + 1
End If
Dim B As New Bitmap(Me.Width , Me.Height)
Dim G As Graphics = Graphics.FromIm age(B)
G.FillRectangle (New SolidBrush(Colo r.DeepPink), New Rectangle(0,
0, Me.Width, Me.Height))
G.DrawString(Tx t, Font, New SolidBrush(Me.F oreColor), 0, 0)
Dim Pth As New Drawing2D.Graph icsPath()
Dim X, Y As Short
For X = 0 To Me.Width - 1
For Y = 0 To Me.Height - 1
If B.GetPixel(X, Y).ToArgb.ToStr ing =
Color.DeepPink. ToArgb.ToString Then
Pth.AddRectangl e(New Rectangle(X, Y, 1, 1))
End If
Next
Next
G.FillRectangle (New SolidBrush(Me.F oreColor), New Rectangle(0,
0, Me.Width, Me.Height))
e.Graphics.Draw Image(B, 0, 0)
Dim Rgn As New Region(New Rectangle(0, 0, Me.Width, Me.Height))
Rgn.Exclude(Pth )
Me.Region = Rgn
B.Dispose()
G.Dispose()
Catch
End Try
End Sub

Protected Overrides Sub OnForeColorChan ged(ByVal e As System.EventArg s)
Me.Refresh()
End Sub

Private Sub TransparentLabe l_Load(ByVal sender As System.Object, ByVal e
As System.EventArg s) Handles MyBase.Load
setstyle(Contro lStyles.AllPain tingInWmPaint, True)
setstyle(Contro lStyles.DoubleB uffer, True)
setstyle(Contro lStyles.UserPai nt, True)
End Sub
End Class

[JD]

Thanks. Will I be able to write text to this label? Do
I have to add a property to the class for this?

-----Original Message-----
Yes it is possible. Add a new user control file to your project andcopy/replace the following code. You now can create label controls of type'TransparentLa bel' which will be transparent:
Imports System.Componen tModel

Public Class TransparentLabe l
Inherits System.Windows. Forms.UserContr ol

#Region " Windows Form Designer generated code "

Public Sub New()
MyBase.New()

'This call is required by the Windows Form Designer. InitializeCompo nent()

'Add any initialization after the InitializeCompo nent() call
End Sub

'UserControl1 overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then
If Not (components Is Nothing) Then
components.Disp ose()
End If
End If
MyBase.Dispose( disposing)
End Sub

'Required by the Windows Form Designer
Private components As System.Componen tModel.IContain er
'NOTE: The following procedure is required by the Windows Form Designer 'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnos tics.DebuggerSt epThrough()> Private SubInitializeComp onent()
'
'TransparentLab el
'
Me.BackColor = System.Drawing. Color.DeepPink
Me.Name = "TransparentLab el"
Me.Size = New System.Drawing. Size(256, 46)

End Sub

#End Region

Private Txt As String
Private AutoSze As Boolean = True

<Bindable(True) , Category("Appea rance"), _
DesignerSeriali zationVisibilit y (DesignerSerial izationVisibili ty.Visible),_
Browsable(True) > _
Public Overrides Property Text() As String
Get
Return Txt
End Get
Set(ByVal Value As String)
Txt = Value
Me.Refresh()
End Set
End Property
<Category("Beha vior"), DefaultValue(Tr ue)> Public Property AutoSize() AsBoolean
Get
Return AutoSze
End Get
Set(ByVal Value As Boolean)
AutoSze = Value
Me.Refresh()
End Set
End Property

Private Sub TransparentLabe l_Paint(ByVal sender As Object, ByVal e AsSystem.Windows .Forms.PaintEve ntArgs) Handles MyBase.Paint
Try
If AutoSze = True Then
Dim Siz As Drawing.SizeF = e.Graphics.Meas ureString(Txt,Font)
Me.Width = Siz.Width + 1
Me.Height = Siz.Height + 1
End If
Dim B As New Bitmap(Me.Width , Me.Height)
Dim G As Graphics = Graphics.FromIm age(B)
G.FillRectangle (New SolidBrush (Color.DeepPink ), New Rectangle(0,0, Me.Width, Me.Height))
G.DrawString(Tx t, Font, New SolidBrush (Me.ForeColor), 0, 0) Dim Pth As New Drawing2D.Graph icsPath()
Dim X, Y As Short
For X = 0 To Me.Width - 1
For Y = 0 To Me.Height - 1
If B.GetPixel(X, Y).ToArgb.ToStr ing =Color.DeepPink .ToArgb.ToStrin g Then
Pth.AddRectangl e(New Rectangle (X, Y, 1, 1)) End If
Next
Next
G.FillRectangle (New SolidBrush (Me.ForeColor), New Rectangle(0,0, Me.Width, Me.Height))
e.Graphics.Draw Image(B, 0, 0)
Dim Rgn As New Region(New Rectangle(0, 0, Me.Width, Me.Height)) Rgn.Exclude(Pth )
Me.Region = Rgn
B.Dispose()
G.Dispose()
Catch
End Try
End Sub

Protected Overrides Sub OnForeColorChan ged(ByVal e As System.EventArg s) Me.Refresh()
End Sub

Private Sub TransparentLabe l_Load(ByVal sender As System.Object, ByVal eAs System.EventArg s) Handles MyBase.Load
setstyle(Contro lStyles.AllPain tingInWmPaint, True) setstyle(Contro lStyles.DoubleB uffer, True)
setstyle(Contro lStyles.UserPai nt, True)
End Sub
End Class


.

[Cor Ligthert]

JD,

Maybe this is easier to understand.

\\\
Panel1.BackColo r = Color.Yellow
Label1.BackColo r = Color.Transpare nt
Label1.ForeColo r = Color.Red
Label1.Text = "Hello JD"
////

I hope this helps,

Cor