[RESOLVED] Timer problem

[tony013]

This code countdown from 10 seconds to 0 second,then capture image and save to the specific folder,and than countdown to -1,-2,-3 etc,but I don't wont thet count to -1,-2,-3 etc...
I would like to do that when it comes to 0 seconds,that the timer countdown again from 10 second countdown to 0 and overvrite the image

Can somebody explain me how to do it?Thanks for any help

this is code

Public Class Form1

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Dim SC As String = 0
        Label1.Text -= SC + 1
        If Label1.Text = 0 Then
        End If
        If Label1.Text = 0 Then
            Try
                Dim scr As Size = New Size(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
                Dim screenGrab As New Bitmap(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
                Dim G As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(screenGrab)
                G.CopyFromScreen(New Point(0, 0), New Point(0, 0), scr)
                screenGrab.Save("C:\test.jpeg")
            Catch ex As Exception
            End Try
        End If
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Label1.Enabled = True
        Timer1.Start()
    End Sub

    Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
        Label1.Enabled = False
    End Sub
End Class

[Negative0]

Please turn option strict on first and fix all of the issues.

When you take the screenshot, why not just set the label value back to 10, so it basically starts over after the screenshot is taken.

[tony013]

When you take the screenshot, why not just set the label value back to 10, so it basically starts over after the screenshot is taken.

Thaks for repay How should I set the value back to 10 after the screenshot is taken?

Please turn option strict

I am a beginer in vb net and I like to know what do you mean with "turn option strict"
Thanks again

I found this what do you mean an I tun on this option.

[Shaggy Hiker]

Option strict will dissallow implicit conversions, for one thing. This line, for instance, implicitly converts a number to a string:

Label1.Text -= SC + 1

It will work, but it is quite inefficient. Other implicit conversions, especially where you are working with strings and the + operator, may do something totally different from what you expect (because + can either concatenate two strings, or add two numbers, so you are hoping that it chooses what you want). Therefore, option strict will prevent some subtle bugs, as well as making the code run faster (though in this case you won't notice it).

You can set Option Strict ON by going to the Compile tab on Project|Properties. Once you do this, you will get LOTS of errors in your code. Kind of a pain, but now is the time to learn good habits, and this is a VERY good habit.

[VBNetDude]

Try this:

            Try
                Dim scr As Size = New Size(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
                Dim screenGrab As New Bitmap(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
                Dim G As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(screenGrab)
                G.CopyFromScreen(New Point(0, 0), New Point(0, 0), scr)
                screenGrab.Save("C:\test.jpeg")
                Me.Label1.Text = 10
            Catch ex As Exception
            End Try

[tony013]

Thanks,this is working good.Thanks again for help

[AsmIscool]

Once you do this, you will get LOTS of errors in your code. Kind of a pain, but now is the time to learn good habits, and this is a VERY good habit.

Nothing like the pain of trying to hunt down that very elusive bug. Learn to do it now. Some kinds of pain you can get over. Others will haunt you for life.

[tony013]

Nothing like the pain of trying to hunt down that very elusive bug. Learn to do it now. Some kinds of pain you can get over. Others will haunt you for life.

Thaks for advice