Problem with drawing lines and rectangle in vb.net

[Guest blade001]

Hi, I am developing a hangman game for smartphone 2003 using vb.net (not using C# as i dont know much about it). I tried different methods to draw lines and shape such as circle, square boxs on the screen and always getting an error messege. I am using the creatgraphics() method and it doesn't seem to like it. Any one know any way round this. Please help. I would really appreciate it.

Edited February 18, 2005 by blade001

[Guest Peter Foot]

Hi, I am developing a hangman game for smartphone 2003 using vb.net (not using C# as i dont know much about it). I tried different methods to draw lines and shape such as circle, square boxs on the screen and always getting an error messege. I am using the creatgraphics() method and it doesn't seem to like it. Any one know any way round this. Please help. I would really appreciate it.

<{POST_SNAPBACK}>

Make sure you are calling CreateGraphics within your OnPaint handler, you cannot call it anywhere within your code.

Peter

[Guest blade001]

Hi, I a, using VB not C#. I am calling the creatgraphics() like I normally do for any other programs and still not having any success with it. I have tried running the program on my pc and it works but I get a error messege when I run the program in emulator and on my phone.

Example Code

Public Class Form1

    Inherits System.Windows.Forms.Form

    Dim drawArea As Graphics

    Friend WithEvents lbl_Exit As System.Windows.Forms.Label

    Friend WithEvents blb_Draw As System.Windows.Forms.Label

#Region " Windows Form Designer generated code "

    Public Sub New()

        MyBase.New()

        'This call is required by the Windows Form Designer.

        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

        drawArea = Me.pic_Hangman.CreateGraphics()

    End Sub

    Private Function Draw()

        Dim myPen As New Pen(Color.Black)

        drawArea.DrawEllipse(myPen, New Rectangle(33, 45, 40, 50))

    End Function

Now when I execute the Draw function I get a error messege. Is there any thing I am missing or it just can not be done? Please help.

Edited March 1, 2005 by blade001

[Guest blade001]

Anyone have any idea how to do this?? Please help. I have some free time this week. So I can work on it again. Please let me know if anyone know anything about it at all. I would really appreciate that.

[Guest Peter Foot]

Anyone have any idea how to do this?? Please help. I have some free time this week. So I can work on it again. Please let me know if anyone know anything about it at all. I would really appreciate that.

<{POST_SNAPBACK}>

Unlike the desktop you can only call CreateGraphics in specific places in your code. Setup a method to handle to Paint event for your form. Here use the Graphics object passed in the PaintEventArgs

Peter