I am writing a program that shows random images in three picture boxes. When I open the program the initial images are in the picture boxes. When I click stop, the program is supposed to select a random image out of five. in each picture box. However, when I click start the images go away and when I click stop, no images appear. There is also a message that is supposed to come up on the screen, which it does. I just can't get the images to show. I am using Visual Basic 2005.
My code is below:
Public
Class videoBonanzaForm
Private images() = {image1, image2, image3, image4, image5}
Private image1 As Image = Image.FromFile("sevenpounds.gif")
Private image2 As Image = Image.FromFile("push.gif")
[Code] ......
I want to create a form that shows different pictureboxes, showing different images, when the "Next" or "Previous" button is clicked.Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 'button 1 is the "Next" button PictureBox2.Show()End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click 'button 2 is the "Previous" button PictureBox1.Show() End Sub
What would be the way to display random images in a picture box?When form opens, picture box displays random images, one after another (animated).When person pressed stop button, images stop randomly.
I am trying to generate random images from access database using hashset as it is said to be unique and there won't be any repeated images appearing. But, it doesn't seem to work. ow can i get it to work? By the way, i am very new to the concept of hashset.
Private Function GetImageFromByteArray(ByVal picData As Byte()) As Image If picData Is Nothing Then Return Nothing
I wish to make a wallpaper changer that can select a random wallpaper from a given directory and sub directories. I'm not asking for code at this point, I'd like a reality check to see how hard this could be. I'm still quite a newbie at VB so I just wanna check if what I'm thinking process wise would work.The basic thing I'd like to do is have it pick one picture out of a given dir and sub dirs. Then set it as the wallpaper. I'd like it to be resized if larger than the desktops resolution to fit inside it, no stretching cropping or stuff.
That's the simple things I'd like it to do. Unfortunately I have dual monitors so it'd have to pick two wallpapers, resize each one independently, stick them together, and then set the wallpaper. I'd also like to make a kind of simple database which would have the name of each pic and two values with it. I'd like a value to mark if it's been used already which would be reset when all pictures have been used. The second would be a simple tag. This way i could have all car wallpapers listed as tag 1 and all non-car wallpapers listed as tag 2. Then I could chose whether to use all or only tagged wallpapers.
Heres the code im using to select images from a directory , i also have a timer delay between each image , but my problem is when i start my app , it start by selectind image 1 (Images are numbered 1-15) but i want to select the images randomly ?
Private Declare Auto Function SystemParametersInfo Lib "user32.dll" (ByVal uAction As Integer, ByVal uParam As Integer, ByVal lpvParam As String, ByVal fuWinIni As Integer) As Integer
What I want is when the program Loads, it would display random images from a folder on a website to a picturebox, like: [URL]thats a random pic but, [URL] is the folder of the image?
I am trying to generate random images from access database using hashset as it is said to be unique and there won't be any repeated images appearing. But, it doesn't seem to work.
How can i get it to work? By the way, i am very new to the concept of hashset. Private Function GetImageFromByteArray(ByVal picData As Byte()) As Image If picData Is Nothing Then Return Nothing End If
' is this is an embedded object? Dim bmData As Integer = If((picData(0) = 21 AndAlso picData(1) = 28), 78, 0)
' load the picture Dim img As Image = Nothing Try Dim ms As New MemoryStream(picData, bmData, picData.Length - bmData) img = Image.FromStream(ms) Catch End Try
' return what we got Return img
End Function
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Panel1.Visible = False Panel2.Hide()
Dim conn As New OleDbConnection Dim DA As OleDbDataAdapter Dim DS As New DataSet
Dim oledbconnection As OleDbConnection oledbconnection = New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsAdministratorDesktopdb1.mdb;Jet OLEDB:System Database=system.mdw;")
oledbconnection.Open() Dim command As OleDbCommand command = New OleDbCommand("select count (*) from PicturesDisplayed", oledbconnection) Dim count As Integer count = command.ExecuteScalar() oledbconnection.Close()
Dim randomImage As New HashSet(Of Integer) ' Create a integer and new Random object Dim intPic As Integer Dim rand As New Random
'Pick a random number between 0 and the number of images in database intPic = rand.Next(0, count) randomImage.Add(intPic)
PictureBox1.Height = 256 PictureBox1.Width = 256
PictureBox2.Height = 256 PictureBox2.Width = 256
Dim pic1x As Integer = _ (Me.ClientSize.Width - PictureBox1.Width) 2 Dim pic1y As Integer = _ (Me.ClientSize.Height - PictureBox1.Height) 2 PictureBox1.Location = New Point(pic1x, pic1y)
Dim pic2x As Integer = _ (Me.ClientSize.Width - PictureBox2.Width) 2 Dim pic2y As Integer = _ (Me.ClientSize.Height - PictureBox2.Height) 2 PictureBox2.Location = New Point(pic2x, pic2y)
' Now set the picturebox image equal to the image chosen from the array randomly using the random PictureBox1.Image = GetImageFromByteArray(DS.Tables(0).Rows.Item(intPic).Item(0)) PictureBox1.Visible = True PictureBox2.Image = GetImageFromByteArray(DS.Tables(0).Rows.Item(intPic).Item(2)) PictureBox2.Visible = False
If (randomImage.Count = count) Then Me.Close() End If
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I did some job but couldn't complete. my code snippet is as under
Dim HWR As HttpWebRequest = TryCast(WebRequest.Create("http://www.example.com"), HttpWebRequest) Dim RequestWriter As New StreamWriter(HWR.GetRequestStream())
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