I have a program that is an external viewer. It is launched with a hotkey
from within another application. The program has 30 labels that can be
displayed. Since the labels may not always be oriented the same as the
Operating System I needed to use the Label_Paint event to PAINT the labels
text if it not oriented the same as the operating system. I am trying to
figure out a way to make this event happen faster or optimize it if
possible. I am new to this code. I think the idea was Herfreid's, can't even
remember. Here is the code:
Public Sub myPaint1(ByVal e As System.Windows. Forms.PaintEven tArgs)
Dim strLabelName As String
Select Case myPLabel.Name
Case "lblP1JoyUp "
strLabelName = Label1.Text
Case "lblP1JoyLe ft"
strLabelName = Label2.Text
Case "lblP1JoyDo wn"
strLabelName = Label3.Text
Case "lblP1JoyRi ght"
strLabelName = Label4.Text
Case "lblP1B1"
strLabelName = Label5.Text
Case "lblP1B2"
strLabelName = Label6.Text
Case "lblP1B3"
strLabelName = Label7.Text
Case "lblP1B4"
strLabelName = Label8.Text
Case "lblP1B5"
strLabelName = Label9.Text
Case "lblP1B6"
strLabelName = Label10.Text
Case "lblP1B7"
strLabelName = Label11.Text
Case "lblP1B8"
strLabelName = Label12.Text
Case "lblP1JoyTy pe"
strLabelName = Label25.Text
Case "lblGameNam e"
strLabelName = Label27.Text
Case "lblNumPlay ers"
strLabelName = Label28.Text
Case "lblHistory "
strLabelName = Label29.Text
Case "lblUndocumente d"
strLabelName = Label30.Text
End Select
If myPLabel.Visibl e = True Then
Dim myFontBrush As New SolidBrush(myPL abel.ForeColor)
If frm1.intPriHP1 = frm1.intPriVP1 Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width
+ x) \ 2, (myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
lblP1JoyUp.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width -
x) \ 2, (myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
ElseIf frm1.intPriHP1 <> frm1.intPriVP1 Then
If strGameO = "h" Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
ElseIf strGameO = "v" Then
If strLay2RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay2RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay2RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay2RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
End If
End If
myFontBrush.Dis pose()
End If
End Sub
Any ides how I might speed this up? Currently, if then user is displaying
all 30 labels I need am calling this code 30 times.
Thnaks,
John
5  1330 
John,
If your call your code 30 times in a loop or 1 time one by one, will not
speed up your code, it makes only your program easier to maintanance.
It is possible that Herfried has pointed you on the invalidate method http://msdn.microsoft.com/library/de...idatetopic.asp
However from that not sure because I am not really a painter.
Just my thought,
Cor
John,
The paint event should be doing as little as possible.
How is myPaint1 sub being called?
How is myPLabel being set?
Based on what you posted I would make the following recommendations :
1. Use variables of the correct type (I would expect strLay1RotAngle &
strLay2RotAngle would be integers not strings).
2. Seriously (very seriously) consider using a class derived from Label
instead of all the code in your form.
For example rather then having 30 Labels on my form I would have 30
SpecializedLabe ls on my form. Where SpecializedLabe l inherits from Label,
and has properties, methods & event handlers specific to each label.
Within the SpecializedLabe l class I would override the OnPaint method to
handle painting that specific label. I would have properties on
SpecializedLabe l to handle the rotation & what to display.
I would use the ControlStyles.U serPaint to handle all the painting myself,
then simply use the Text property for what to paint (rather then the select
case myPLabel.Name). Alternatively I would have a property for LabelName to
display...
I will try to post a start of a sample later today.
Hope this helps
Jay
"jcrouse" <me> wrote in message
news:Oz******** ******@TK2MSFTN GP09.phx.gbl... I have a program that is an external viewer. It is launched with a hotkey
from within another application. The program has 30 labels that can be
displayed. Since the labels may not always be oriented the same as the
Operating System I needed to use the Label_Paint event to PAINT the labels
text if it not oriented the same as the operating system. I am trying to
figure out a way to make this event happen faster or optimize it if
possible. I am new to this code. I think the idea was Herfreid's, can't
even remember. Here is the code:
Public Sub myPaint1(ByVal e As System.Windows. Forms.PaintEven tArgs)
Dim strLabelName As String
Select Case myPLabel.Name
Case "lblP1JoyUp "
strLabelName = Label1.Text
Case "lblP1JoyLe ft"
strLabelName = Label2.Text
Case "lblP1JoyDo wn"
strLabelName = Label3.Text
Case "lblP1JoyRi ght"
strLabelName = Label4.Text
Case "lblP1B1"
strLabelName = Label5.Text
Case "lblP1B2"
strLabelName = Label6.Text
Case "lblP1B3"
strLabelName = Label7.Text
Case "lblP1B4"
strLabelName = Label8.Text
Case "lblP1B5"
strLabelName = Label9.Text
Case "lblP1B6"
strLabelName = Label10.Text
Case "lblP1B7"
strLabelName = Label11.Text
Case "lblP1B8"
strLabelName = Label12.Text
Case "lblP1JoyTy pe"
strLabelName = Label25.Text
Case "lblGameNam e"
strLabelName = Label27.Text
Case "lblNumPlay ers"
strLabelName = Label28.Text
Case "lblHistory "
strLabelName = Label29.Text
Case "lblUndocumente d"
strLabelName = Label30.Text
End Select
If myPLabel.Visibl e = True Then
Dim myFontBrush As New SolidBrush(myPL abel.ForeColor)
If frm1.intPriHP1 = frm1.intPriVP1 Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2, (myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width, myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
lblP1JoyUp.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2, (myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
ElseIf frm1.intPriHP1 <> frm1.intPriVP1 Then
If strGameO = "h" Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
ElseIf strGameO = "v" Then
If strLay2RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay2RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay2RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay2RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
End If
End If
myFontBrush.Dis pose()
End If
End Sub
Any ides how I might speed this up? Currently, if then user is displaying
all 30 labels I need am calling this code 30 times.
Thnaks,
John
The myPaint1 sub is being called 30 times. Once from each Label_Paint event.
I agree about the user defined controls. You guys suggested that a month or
two ago, however, it is over my head and I'm still trying to figure out how
to do it. Here is one of my Label_Paint events:
Private Sub lblP1JoyUp_Pain t(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles lblP1JoyUp.Pain t
myPLabel = lblP1JoyUp
myPaint1(e)
End Sub
Thanks,
John
"Jay B. Harlow [MVP - Outlook]" <Ja************ @msn.com> wrote in message
news:Ol******** ******@TK2MSFTN GP10.phx.gbl... John,
The paint event should be doing as little as possible.
How is myPaint1 sub being called?
How is myPLabel being set?
Based on what you posted I would make the following recommendations :
1. Use variables of the correct type (I would expect strLay1RotAngle &
strLay2RotAngle would be integers not strings).
2. Seriously (very seriously) consider using a class derived from Label
instead of all the code in your form.
For example rather then having 30 Labels on my form I would have 30
SpecializedLabe ls on my form. Where SpecializedLabe l inherits from Label,
and has properties, methods & event handlers specific to each label.
Within the SpecializedLabe l class I would override the OnPaint method to
handle painting that specific label. I would have properties on
SpecializedLabe l to handle the rotation & what to display.
I would use the ControlStyles.U serPaint to handle all the painting myself,
then simply use the Text property for what to paint (rather then the
select case myPLabel.Name). Alternatively I would have a property for LabelName
to display...
I will try to post a start of a sample later today.
Hope this helps
Jay
"jcrouse" <me> wrote in message
news:Oz******** ******@TK2MSFTN GP09.phx.gbl... I have a program that is an external viewer. It is launched with a
hotkey from within another application. The program has 30 labels that can be
displayed. Since the labels may not always be oriented the same as the
Operating System I needed to use the Label_Paint event to PAINT the
labels text if it not oriented the same as the operating system. I am trying to
figure out a way to make this event happen faster or optimize it if
possible. I am new to this code. I think the idea was Herfreid's, can't
even remember. Here is the code:
Public Sub myPaint1(ByVal e As System.Windows. Forms.PaintEven tArgs)
Dim strLabelName As String
Select Case myPLabel.Name
Case "lblP1JoyUp "
strLabelName = Label1.Text
Case "lblP1JoyLe ft"
strLabelName = Label2.Text
Case "lblP1JoyDo wn"
strLabelName = Label3.Text
Case "lblP1JoyRi ght"
strLabelName = Label4.Text
Case "lblP1B1"
strLabelName = Label5.Text
Case "lblP1B2"
strLabelName = Label6.Text
Case "lblP1B3"
strLabelName = Label7.Text
Case "lblP1B4"
strLabelName = Label8.Text
Case "lblP1B5"
strLabelName = Label9.Text
Case "lblP1B6"
strLabelName = Label10.Text
Case "lblP1B7"
strLabelName = Label11.Text
Case "lblP1B8"
strLabelName = Label12.Text
Case "lblP1JoyTy pe"
strLabelName = Label25.Text
Case "lblGameNam e"
strLabelName = Label27.Text
Case "lblNumPlay ers"
strLabelName = Label28.Text
Case "lblHistory "
strLabelName = Label29.Text
Case "lblUndocumente d"
strLabelName = Label30.Text
End Select
If myPLabel.Visibl e = True Then
Dim myFontBrush As New SolidBrush(myPL abel.ForeColor)
If frm1.intPriHP1 = frm1.intPriVP1 Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2, (myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width, myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
lblP1JoyUp.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2, (myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
ElseIf frm1.intPriHP1 <> frm1.intPriVP1 Then
If strGameO = "h" Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name,
myPLabel.Font, myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name,
myPLabel.Font, myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name,
myPLabel.Font, myFontBrush, -y, 0)
End If
ElseIf strGameO = "v" Then
If strLay2RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay2RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name,
myPLabel.Font, myFontBrush, -y, 0)
ElseIf strLay2RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name,
myPLabel.Font, myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay2RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name,
myPLabel.Font, myFontBrush, -y, 0)
End If
End If
End If
myFontBrush.Dis pose()
End If
End Sub
Any ides how I might speed this up? Currently, if then user is
displaying all 30 labels I need am calling this code 30 times.
Thnaks,
John
I'm sure here I could have also use some sort of DirectCast(send er, Label)
but don't really understand that syntax either. I'll get there eventually.
It's just a slow process.
Thanks,
John
"jcrouse" <me> wrote in message
news:ea******** ******@TK2MSFTN GP15.phx.gbl... The myPaint1 sub is being called 30 times. Once from each Label_Paint
event. I agree about the user defined controls. You guys suggested that a month
or two ago, however, it is over my head and I'm still trying to figure out
how to do it. Here is one of my Label_Paint events:
Private Sub lblP1JoyUp_Pain t(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles lblP1JoyUp.Pain t
myPLabel = lblP1JoyUp
myPaint1(e)
End Sub
Thanks,
John
"Jay B. Harlow [MVP - Outlook]" <Ja************ @msn.com> wrote in message
news:Ol******** ******@TK2MSFTN GP10.phx.gbl... John,
The paint event should be doing as little as possible.
How is myPaint1 sub being called?
How is myPLabel being set?
Based on what you posted I would make the following recommendations :
1. Use variables of the correct type (I would expect strLay1RotAngle &
strLay2RotAngle would be integers not strings).
2. Seriously (very seriously) consider using a class derived from Label
instead of all the code in your form.
For example rather then having 30 Labels on my form I would have 30
SpecializedLabe ls on my form. Where SpecializedLabe l inherits from
Label, and has properties, methods & event handlers specific to each label.
Within the SpecializedLabe l class I would override the OnPaint method to
handle painting that specific label. I would have properties on
SpecializedLabe l to handle the rotation & what to display.
I would use the ControlStyles.U serPaint to handle all the painting
myself, then simply use the Text property for what to paint (rather then the
select case myPLabel.Name). Alternatively I would have a property for LabelName
to display...
I will try to post a start of a sample later today.
Hope this helps
Jay
"jcrouse" <me> wrote in message
news:Oz******** ******@TK2MSFTN GP09.phx.gbl... I have a program that is an external viewer. It is launched with a hotkey from within another application. The program has 30 labels that can be
displayed. Since the labels may not always be oriented the same as the
Operating System I needed to use the Label_Paint event to PAINT the labels text if it not oriented the same as the operating system. I am trying
to figure out a way to make this event happen faster or optimize it if
possible. I am new to this code. I think the idea was Herfreid's,
can't even remember. Here is the code:
Public Sub myPaint1(ByVal e As
System.Windows. Forms.PaintEven tArgs) Dim strLabelName As String
Select Case myPLabel.Name
Case "lblP1JoyUp "
strLabelName = Label1.Text
Case "lblP1JoyLe ft"
strLabelName = Label2.Text
Case "lblP1JoyDo wn"
strLabelName = Label3.Text
Case "lblP1JoyRi ght"
strLabelName = Label4.Text
Case "lblP1B1"
strLabelName = Label5.Text
Case "lblP1B2"
strLabelName = Label6.Text
Case "lblP1B3"
strLabelName = Label7.Text
Case "lblP1B4"
strLabelName = Label8.Text
Case "lblP1B5"
strLabelName = Label9.Text
Case "lblP1B6"
strLabelName = Label10.Text
Case "lblP1B7"
strLabelName = Label11.Text
Case "lblP1B8"
strLabelName = Label12.Text
Case "lblP1JoyTy pe"
strLabelName = Label25.Text
Case "lblGameNam e"
strLabelName = Label27.Text
Case "lblNumPlay ers"
strLabelName = Label28.Text
Case "lblHistory "
strLabelName = Label29.Text
Case "lblUndocumente d"
strLabelName = Label30.Text
End Select
If myPLabel.Visibl e = True Then
Dim myFontBrush As New SolidBrush(myPL abel.ForeColor)
If frm1.intPriHP1 = frm1.intPriVP1 Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2, (myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width, myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
lblP1JoyUp.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2, (myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font,
myFontBrush, -y, 0)
End If
ElseIf frm1.intPriHP1 <> frm1.intPriVP1 Then
If strGameO = "h" Then
If strLay1RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay1RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font, myFontBrush, -y, 0)
ElseIf strLay1RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font, myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay1RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font, myFontBrush, -y, 0)
End If
ElseIf strGameO = "v" Then
If strLay2RotAngle = "0" Then
myPLabel.Text = strLabelName
ElseIf strLay2RotAngle = "90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
(myPLabel.Clien tSize.Height + y) \ 2)
e.Graphics.Rota teTransform(90)
e.Graphics.Draw String(strLabel Name, myPLabel.Font, myFontBrush, -y, 0)
ElseIf strLay2RotAngle = "180" Then
Dim sf As New StringFormat
sf.Alignment = StringAlignment .Center
sf.LineAlignmen t = StringAlignment .Center
myPLabel.Text = ""
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
myPLabel.Client Size.Height)
e.Graphics.Rota teTransform(180 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font, myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
ElseIf strLay2RotAngle = "-90" Then
Dim y As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
Dim x As Integer =
CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
myPLabel.Text = ""
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
(myPLabel.Clien tSize.Height - y) \ 2)
e.Graphics.Rota teTransform(270 )
e.Graphics.Draw String(strLabel Name, myPLabel.Font, myFontBrush, -y, 0)
End If
End If
End If
myFontBrush.Dis pose()
End If
End Sub
Any ides how I might speed this up? Currently, if then user is displaying all 30 labels I need am calling this code 30 times.
Thnaks,
John
John,
Unfortunately I do not have time to come up with a meaningful sample for
you.
You can shorten the following to: Private Sub lblP1JoyUp_Pain t(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles lblP1JoyUp.Pain t
myPLabel = DirectCast(send er, Label)
myPaint1(e)
End Sub
If you do the above all 30 times, then you can simply reduce it to once,
with 30 controls on the Handles.
Private Sub lblP1JoyUp_Pain t(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles lblP1JoyUp.Pain t,
lblP2JoyUp.Pain t...
myPLabel = DirectCast(send er, Label)
myPaint1(e)
End Sub
I would recommend you start with Robin A. Reynolds-Haertle's book "OOP -
with Microsoft Visual Basic .NET and Microsoft Visual C# .NET - Step by
Step" from MS Press. As its a good book on the how of OO. Taking an OO
approach with your app should significantly reduce the amount of code you
have, which should also cause it to run quicker (you would not be jumping
through hopes to get to select case statements to get back to the control
that you started with.
Hope this helps
Jay
"jcrouse" <me> wrote in message
news:ea******** ******@TK2MSFTN GP15.phx.gbl... The myPaint1 sub is being called 30 times. Once from each Label_Paint
event.
I agree about the user defined controls. You guys suggested that a month
or
two ago, however, it is over my head and I'm still trying to figure out
how
to do it. Here is one of my Label_Paint events:
Private Sub lblP1JoyUp_Pain t(ByVal sender As Object, ByVal e As
System.Windows. Forms.PaintEven tArgs) Handles lblP1JoyUp.Pain t
myPLabel = lblP1JoyUp
myPaint1(e)
End Sub
Thanks,
John
"Jay B. Harlow [MVP - Outlook]" <Ja************ @msn.com> wrote in message
news:Ol******** ******@TK2MSFTN GP10.phx.gbl... John,
The paint event should be doing as little as possible.
How is myPaint1 sub being called?
How is myPLabel being set?
Based on what you posted I would make the following recommendations :
1. Use variables of the correct type (I would expect strLay1RotAngle &
strLay2RotAngle would be integers not strings).
2. Seriously (very seriously) consider using a class derived from Label
instead of all the code in your form.
For example rather then having 30 Labels on my form I would have 30
SpecializedLabe ls on my form. Where SpecializedLabe l inherits from Label,
and has properties, methods & event handlers specific to each label.
Within the SpecializedLabe l class I would override the OnPaint method to
handle painting that specific label. I would have properties on
SpecializedLabe l to handle the rotation & what to display.
I would use the ControlStyles.U serPaint to handle all the painting
myself,
then simply use the Text property for what to paint (rather then the
select case myPLabel.Name). Alternatively I would have a property for LabelName
to display...
I will try to post a start of a sample later today.
Hope this helps
Jay
"jcrouse" <me> wrote in message
news:Oz******** ******@TK2MSFTN GP09.phx.gbl... > I have a program that is an external viewer. It is launched with a hotkey > from within another application. The program has 30 labels that can be
> displayed. Since the labels may not always be oriented the same as the
> Operating System I needed to use the Label_Paint event to PAINT the labels > text if it not oriented the same as the operating system. I am trying
> to
> figure out a way to make this event happen faster or optimize it if
> possible. I am new to this code. I think the idea was Herfreid's, can't
even > remember. Here is the code:
>
> Public Sub myPaint1(ByVal e As System.Windows. Forms.PaintEven tArgs)
> Dim strLabelName As String
>
> Select Case myPLabel.Name
>
> Case "lblP1JoyUp "
>
> strLabelName = Label1.Text
>
> Case "lblP1JoyLe ft"
>
> strLabelName = Label2.Text
>
> Case "lblP1JoyDo wn"
>
> strLabelName = Label3.Text
>
> Case "lblP1JoyRi ght"
>
> strLabelName = Label4.Text
>
> Case "lblP1B1"
>
> strLabelName = Label5.Text
>
> Case "lblP1B2"
>
> strLabelName = Label6.Text
>
> Case "lblP1B3"
>
> strLabelName = Label7.Text
>
> Case "lblP1B4"
>
> strLabelName = Label8.Text
>
> Case "lblP1B5"
>
> strLabelName = Label9.Text
>
> Case "lblP1B6"
>
> strLabelName = Label10.Text
>
> Case "lblP1B7"
>
> strLabelName = Label11.Text
>
> Case "lblP1B8"
>
> strLabelName = Label12.Text
>
> Case "lblP1JoyTy pe"
>
> strLabelName = Label25.Text
>
> Case "lblGameNam e"
>
> strLabelName = Label27.Text
>
> Case "lblNumPlay ers"
>
> strLabelName = Label28.Text
>
> Case "lblHistory "
>
> strLabelName = Label29.Text
>
> Case "lblUndocumente d"
>
> strLabelName = Label30.Text
>
> End Select
>
> If myPLabel.Visibl e = True Then
>
> Dim myFontBrush As New SolidBrush(myPL abel.ForeColor)
>
> If frm1.intPriHP1 = frm1.intPriVP1 Then
>
> If strLay1RotAngle = "0" Then
>
> myPLabel.Text = strLabelName
>
> ElseIf strLay1RotAngle = "90" Then
>
> Dim y As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
>
> Dim x As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
>
> myPLabel.Text = ""
>
>
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width > + x) \ 2, (myPLabel.Clien tSize.Height + y) \ 2)
>
> e.Graphics.Rota teTransform(90)
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font,
> myFontBrush, -y, 0)
>
> ElseIf strLay1RotAngle = "180" Then
>
> Dim sf As New StringFormat
>
> sf.Alignment = StringAlignment .Center
>
> sf.LineAlignmen t = StringAlignment .Center
>
> myPLabel.Text = ""
>
>
e.Graphics.Tran slateTransform( myPLabel.Client Size.Width, > myPLabel.Client Size.Height)
>
> e.Graphics.Rota teTransform(180 )
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font,
> myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
>
> ElseIf strLay1RotAngle = "-90" Then
>
> Dim y As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
>
> Dim x As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
>
> lblP1JoyUp.Text = ""
>
>
>
>
e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width
- > x) \ 2, (myPLabel.Clien tSize.Height - y) \ 2)
>
> e.Graphics.Rota teTransform(270 )
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font,
> myFontBrush, -y, 0)
>
> End If
>
> ElseIf frm1.intPriHP1 <> frm1.intPriVP1 Then
>
> If strGameO = "h" Then
>
> If strLay1RotAngle = "0" Then
>
> myPLabel.Text = strLabelName
>
> ElseIf strLay1RotAngle = "90" Then
>
> Dim y As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
>
> Dim x As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
>
> myPLabel.Text = ""
>
>
> e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
> (myPLabel.Clien tSize.Height + y) \ 2)
>
> e.Graphics.Rota teTransform(90)
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font, > myFontBrush, -y, 0)
>
> ElseIf strLay1RotAngle = "180" Then
>
> Dim sf As New StringFormat
>
> sf.Alignment = StringAlignment .Center
>
> sf.LineAlignmen t = StringAlignment .Center
>
> myPLabel.Text = ""
>
>
> e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
> myPLabel.Client Size.Height)
>
> e.Graphics.Rota teTransform(180 )
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font, > myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
>
> ElseIf strLay1RotAngle = "-90" Then
>
> Dim y As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
>
> Dim x As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
>
> myPLabel.Text = ""
>
>
> e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
> (myPLabel.Clien tSize.Height - y) \ 2)
>
> e.Graphics.Rota teTransform(270 )
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font, > myFontBrush, -y, 0)
>
> End If
>
> ElseIf strGameO = "v" Then
>
> If strLay2RotAngle = "0" Then
>
> myPLabel.Text = strLabelName
>
> ElseIf strLay2RotAngle = "90" Then
>
> Dim y As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
>
> Dim x As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
>
> myPLabel.Text = ""
>
>
> e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width + x) \ 2,
> (myPLabel.Clien tSize.Height + y) \ 2)
>
> e.Graphics.Rota teTransform(90)
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font, > myFontBrush, -y, 0)
>
> ElseIf strLay2RotAngle = "180" Then
>
> Dim sf As New StringFormat
>
> sf.Alignment = StringAlignment .Center
>
> sf.LineAlignmen t = StringAlignment .Center
>
> myPLabel.Text = ""
>
>
> e.Graphics.Tran slateTransform( myPLabel.Client Size.Width,
> myPLabel.Client Size.Height)
>
> e.Graphics.Rota teTransform(180 )
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font, > myFontBrush, RectangleF.op_I mplicit(myPLabe l.ClientRectang le), sf)
>
> ElseIf strLay2RotAngle = "-90" Then
>
> Dim y As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Width)
>
> Dim x As Integer =
> CInt(e.Graphics .MeasureString( strLabelName, myPLabel.Font). Height)
>
> myPLabel.Text = ""
>
>
> e.Graphics.Tran slateTransform( (myPLabel.Clien tSize.Width - x) \ 2,
> (myPLabel.Clien tSize.Height - y) \ 2)
>
> e.Graphics.Rota teTransform(270 )
>
> e.Graphics.Draw String(strLabel Name, myPLabel.Font, > myFontBrush, -y, 0)
>
> End If
>
> End If
>
> End If
>
> myFontBrush.Dis pose()
>
> End If
>
> End Sub
>
>
>
> Any ides how I might speed this up? Currently, if then user is displaying > all 30 labels I need am calling this code 30 times.
>
> Thnaks,
> John
>
>
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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