Is there any efficient way to load all of the images that my program will use upon start-up such that when I load those images into pictureboxes during runtime regardless of what form I may be using, the images will load faster?Does that make sense?I've read about ImageLists, but do they actually load the images or is it just a way to manage image files?
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I have made a program that loads files from the network and changes them. It all works great and I must say that I did not expect that I could learn some basics so fast. Any way, When I create a new project with a new form, I can create a button, and if I click on it, I can type the things I want it to do. However, I want the program to load a file on startup of the program (load some variables from files). I tried copy/pasting some pieces of sourcefile that work above the part where it start the actions of clicking a button, but that does not work. If I manage to remove all the compile errors and start the program, it still loads nothing untill I click a button. So my question is, how can I make the program do anything without clicking a button. Example, read a txt from a harddrive called test.txt and save that as a variable "computername" in the program.
View 2 RepliesI wanted to know how and if it is possible to make a button that would tell the app to shut down the computer and then load a program from startup like knoppix or something.
View 2 RepliesPicBox(0, 0).Image = My.Resources.ship1
PicBox(0, 1).Image = My.Resources.ship2
As you see the code given below is not very useful. Is it possible to shorten the code. Mousewheel back and forward give the same result (next image). Keydown cannot be configured.
Private Sub Images_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
count += 1
If count + 1 > ImageList1.Images.Count Then
[Code] .....
I have about 100 PNG images stored in a Resource. Sometimes I need to have the same images in an ImageList, but I do not want to store the images twice in my application, so I add the images from the Resource to the ImageList during runtime when I need them.
Is there an easier way to do this than having 100 lines of code, like the small example below?
imgItems.Images.Add("A", My.Resources.A)
imgItems.Images.Add("B", My.Resources.B)
imgItems.Images.Add("C", My.Resources.C)
imgItems.Images.Add("D", My.Resources.D)
'etc
'etc
I am using the following piece of code to load images as thumbnails to a FlowLayoutPanel control. Unfortunately i get an OutOfMemory exception.As you already guess the memory leak is found at line
Pedit.Image = System.Drawing.Image.FromStream(fs)
So how could i optimize the following code?
Private Sub LoadImagesCommon(ByVal FlowPanel As FlowLayoutPanel, ByVal fi As FileInfo)
Pedit = New DevExpress.XtraEditors.PictureEdit
Pedit.Width = txtIconsWidth.EditValue
[code]....
Update: The problem occurs while loading a number of images (3264x2448px at 300dpi - each image is about 3Mb's)
I want to load images into a picturebox, save them into a database and display them again in the picturebox. This is the code I'm actually having problem with:
Private Connection As String = _
"Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:UsersclientDocumentsVisual Studio 2008ProjectsSavingsLoansCalc.mdb"
rivate Sub UploadButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles UploadButton.Click
[Code] .....
I'm getting this error message:
"Type 'Connection' is not declared"
On this line:
oConn = New OleDb.OleDbConnection( _
New Connection().getConnectionString)
I am currently new to visual basic and I am using Microsoft Visual Basic 2010. I am trying to create a small game in which i want to use 8 images. These images are imported in my resources under images as _0.gif _2.gif up to _7.gif. I could write code for each of the imageboxes individually but i prefer doing it in an array as shown below. As you can see I use the variable "i" to run a for, next loop.
picbox(i).Image =
My.Resources._1
So that not every time it loads the image. _1.gif but it loads the images _0.gif through _7.gif, based on the "i" variable.
For
i As
Integer
= 0 To
7
picbox(i) =
[Code] .....
I have a 4 pictureboxes for a database I made but having a problem with loading images in to the picturebox. On my form I have a picturebox, 1 button, 1 textbox, and 1 openfiledialog.
My button click event code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
OpenFileDialog1.ShowDialog()
TextBox1.Text = OpenFileDialog1.FileName
Pic1PictureBox.Image = Image.FromFile(TextBox1.Text)
End Sub
I can add pics but if I don't select any image (just close the dialogbox) I get an error and not sure what to do ..or what to add. Is there any code to tell it to just close..
mage from the open file dialog in a picturebox the image displays correctly..
Private
Sub
ListBox1_SelectedIndexChanged(ByVal
[code].....
I'm trying to load this image file on a PictureBox but I get an "OutOfMemoryException was unhandled" error.
How do I allocate more memory for this? Or maybe use another container? My project's main feature is loading maps, unfortunately my boss wants to load the whole map and won't accept sliced version of the map.
i'm working on a project right now and I need to create a graphic library.The game I'm experimenting with is an RPG; this project is expected to contain many big graphic files to use and I would prefer not to load everything into memory at once, like I've done before with other smaller projects.So, does anyone have experience with libraries such as this one? Here's what I've came up with:
Have graphic library files and paths in an XML file Each entry in the XML file would be designated "PERMANENT" or "TEMPORARY", with perm. being that once loaded it stays in memory and won't be cleared (like menu-graphics)The library that the XML file loads into would have a CLEAR command, that clears out all non-PERMANENT graphics I have experience throwing everything into memory at startup, and with running the program running with the assumption that all necessary graphics are currently in memory.
How to receive a web page without loading images for lower usage of bandwith? I prefer to not using webbrowser component.
View 9 RepliesI'm currently blocking all the images from loading in the web browser control by using the registry key. I would like to find a way were I could allow images from some sites to be shown.
View 1 Repliesi have a simple photo viewer application where i want the user to click a "load sequence" button and then i want something like a folderbroswerdialog to appear then the user can pick a folder with images in it then the images get loaded into the picturebox and the user can click a "forward" button to go to the next image in the sequence and a "backward" button to go to the previous image in the sequence, it's kinda like windows 7 photo viewer.
View 17 RepliesDisplay ajax loading image before loading anycontrol .... means if i wanna show textbox on button click after showing loading images using ajax toolkit or ajax extension in vb.net ?
View 1 RepliesThe app i am working on is for creating theme for the iPod touch... It has to deal with LOTS of images (100's potentially) There will be the set of default images, and then the user created replacement images. I started loading all the defaults into a resx file... thinking then I could just pull them out. now that I started setting the default, this sucks! lol the app will do this, on load it will set all the images (variables) to the resx images then when a theme is loaded, it will replace the default with the user image (if the user img exists) otherwise, the default stays. Then the "screen" is drawn to show the user. so, here is just the images to build the wallpaper, dock, and status bar...
[Code]...
I need this for my program. There is "add images" button where you can load multiple images and those images should be show on listview after loading.I have been trying to make this but could not get it work.
View 6 RepliesI can hide my startup form (or make it appear hidden) on startup. I can start my app on windows startup--through registry values--if the user checks a checkbox.
But if the app starts up on windows startup, I want the form to be hidden, so the program can just keep working without bothering anyone. If it starts up because the user started it, I want the form to be showing, because the user probably wants to change some settings or something.
How to make an Application to startup at the system startup? and How to enable and disable?
View 6 Replieshow to make my program run on windows startup as a system application oh and the program should check if already exists in the registry as a startup app becouse otherwise it will give errors...
View 2 RepliesIm making a program that reads from an ini file and then prints it in the form I have a problem when Im trying to open the compiled file the form is just blanc and there isnt any text its like it isnt reading from my code
here is the code
Imports System
Imports System.Collections
Imports Microsoft.Win32
Imports icsharpcode.sharpziplib.zip
[code]....
I was having trouble before editing the registry on a WPF application I'm working on, in order to get autostart to work, so I ended up creating a shortcut in the startup folder to automatically start the application. My problem is, that this not working on Windows 7 (and Im guessing Vista too). Here's my code. Does Environment.SpecialFolder.Startup not work on Windows 7?
Dim PathToStartupFolder As String = Environment.GetFolderPath(Environment.SpecialFolder.Startup)
If File.Exists(PathToStartupFolder & "Application.Exe.LNK") = False Then
Dim ShellObject As New IWshRuntimeLibrary.WshShell
[code]....
so i have a (quite simple sounding) question about how should i count how many buttons ive pressed in the program since i started it e.g:
1. i start up
2. i press 2 times on one button and 1 time on another
3. a label should say how many times ive pressed all buttons since startup
how should the code be for that?
I added this code to be able to use some controls from another form, but since i added it, i can't choose that form as startup form. If i remove the code, i can choose it, if i add it again,i can not. So what can i do?
Private pluginmanager As Pluginmanager
Public Sub New(ByVal CsPluginmanager As Form)
InitializeComponent()
[code].....
I'm using this code to make my app. run at startup if a CheckBox is checked
Private Sub CheckBox5_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox5.CheckedChanged
If CheckBox5.Checked = True Then
CheckBox6.Checked = False
CheckBox6.Enabled = False
[Code]...
Im making a program that reads from an ini file and then prints it in the form I have a problem when Im trying to open the compiled file the form is just blanc and there isnt any text its like it isnt reading from my code
here is the code
Imports System
Imports System.Collections
Imports Microsoft.Win32
[Code]....
I am working on a Windows Forms application which is primarily to be used as a command line application with an optional GUI in the case where no command line options are specified. The program is intended to be a lightweight version of a larger program, intended to perform a couple of very specific tasks without requiring all the initialization required in the larger program.To this end, I am planning on using Me.Startup in applicationevents to process the command line options and determine if the Startup form should be displayed or not. In the case where the startup form should not be displayed, what is the method to close the application from within Me.Startup Application.Exit, Me.Close, and others are not available from within Me.Startup. My searches online have shown that I can use e.ApplicationExit() from Me.UnhandledException, but this method is also not available from Me.Startup.if anyone has any better ideas on how to accomplish what I am trying to do, those comments are always welcome.
View 3 Replieshow can I get the shared startup folder? My application is set to add a shortcut to the startup folder, but it isnly for that user, and I'd like it to automatically start for any user on the machine.I know you can do this by adding a registry key, but I'm having trouble getting my registry key code to work in this WPF app.
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