How To Generate Image File (JPG)
Nov 16, 2011I would like to generate a .jpg file by using vb.net desktop application. Example: the program will paint a simple rectangle with grey color, and produce as a physical image file (.jpg).
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Generate Thumbnail Image From .doc File?
Oct 13, 2011I am in search of a way to access a files thumbnail preview and push it to a picturebox on my form. I have the code below that works for jpg files, however it does not work for say a word document's thubnail. displaying the word documents thumbnail in a picturebox would be great!
Dim myBitmap As New Bitmap("C:Doc1.doc", True)
Dim myThumbnail As Image = myBitmap.GetThumbnailImage(40, 40, myCallback, IntPtr.Zero)
PictureBox1.Image = myThumbnail
Generate G-code From An Image?
May 26, 2009I am trying to make a cnc program i have learnt a little about g-code .i want to know how i can generate g-code from an image?Also how i can use this g-code in my program to move motors?
View 5 RepliesGenerate Random Image In A Group Box?
Apr 20, 2009Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles [code]...
Im getting "overload resolution failed because no access "getobject" accepts this number of arguments. "
Im trying to generate 7 different images in a group box out of 26 images when the form loads.
Generate/Export An Image At Runtime?
Mar 24, 2011I'm developing a standalone application. The purpose of it is to have no installation necessary. I'm trying to keep it as small as possible, and everything contained in the actual program, so that the user can let it sit right on their desktop. I wanted to make it possible to generate an image, preferably something transparent (.png, .gif) of a certain dimension, and export it to a certain folder. I've explored Bitmap library, but I've yet to come up with a successful solution. I'd be very obliged if someone could point me in the correct direction. Here's my current code:
Dim myPNG = New System.Drawing.Bitmap(fileName:="logo.png")
myPNG.SetResolution(xDpi:=100, yDpi:=20)
myPNG.MakeTransparent() 'creates transparency
myPNG.Save("C:logo.png")
HTML - Generate Onclick Event In Image Control In Asp.net?
Feb 6, 2012i am have one datalist in asp.net i m using vb with asp now my code is just as follow
<table border="0" cellpadding="0" cellspacing="0" >
<tr>
<br />
[code]....
all this in datalist as you can see so it will be repeated..i have put one image in it now i want call a method when any image will be clicked i make one sub called s() in vb i want to call it i use on clientclick() event but doesn't work
VS 2010 Generate Image Path From Unique Name, What To Do With Invalid Chars
Apr 15, 2010I'm creating a radio streaming application, which plays a live stream from various radio stations in a small 'gadget' like application.
The user can add his own custom radio stations, by supplying a Name, a StreamUrl and, optionally, an Image that represents a logo or something of that radio station.The logo will be drawn on the main form when that station is selected.
I need to be able to save these custom stations, and I think it makes sense to use an XML file, which could then look something like this
<CustomStations>
<Station>
<Name>Radio 1</Name>
[code]....
Before I added the support for images, this worked fine, how to store the images. I want the user to be able to select any image from his harddrive, but I don't want to force him to keep that image in the same location afterwards. So I can't rely on the path that he selected. Instead, I want to simply load the image from the path he selected, and then save it somewhere else.
I am storing the XML file in the common application data path which I think is a good place for the images too.The problem is, how to determine a name for the images? I will always have just one image per custom radio station, so it makes sense to me to simply have one Images folder that holds all images, with a unique name.I can see two solutions:
1. Generate a random filename for every image
2. Use the Name of the radio station as the image name
For option 1, I suppose I could just create a string of 16 random characters and call that the filename. The problem of course is that there is no guarantee that I will get a unique filename. Yes, the chances of generating the same name twice randomly are very tiny, but it's still possible, and I just don't like that. How can I ensure that my random filename is unique? I suppose I could always drop the whole thing in a While loop that continues when the new filename already exists, but there must be a better way... Is there nothing in the framework that allows me to generate a unique random filename, in a directory of my choice (so not in the Temp directory...)
I like option 2 much better. The Name of a radio station is unique (there can't be two stations with the same name), so I don't have to worry about filenames conflicting. The problem with this approach is that there are no restrictions on the name. There's nothing stopping the user from naming their custom station "Radio~/aij!""_.fe" or something like that, which is obviously not a valid filename... So, I will have to do 'something' to generate a valid filename from the station name. I could simply remove all non-valid path characters from the name, but then I am no longer guaranteed a unique filename... Suppose there's two stations, one called "Radio/1" and one "Radio1", then after removing the invalid "/" character, the names will be the same and so I will generate the same image path for both....
How To Generate A Pdf File
Aug 24, 2009i would like to generate a very simple report with some images and text and i am wondering if there is a way to generate a pdf file with vb.net?
View 4 RepliesCss - Generate An HTML File
Feb 24, 2012I have created a program that merges files and I have decided to output the results as an HTML document so that it is legible. I have achieved this output using System.IO.StreamWriter and creating a textfile with all the html formatting and in-line CSS and saving it with the .html extension like so:
[Code]...
Generate A .txt File Containing Such String?
Mar 19, 2011how do I generate a .txt file containing such string?
View 1 RepliesCan't Get Listbox Generate Info From Txt File?
Mar 23, 2011The problem is that it only adds to the text file it's suppose to read from, but instead of adding 4 strings into my listbox. Can someone figure out what's wrong with my code, and provide me the correct syntax for it. This is in a sub after click of a button in vb.2008.
[code]...
Combinations :: Generate All Possible Words On File?
Dec 10, 2011Example :
If a got word "don" then file will contain
ddd
ddo
[code].....
Generate A Static Url A File In Program?
Jan 7, 2010I would like to generate a static URL based on a few parameters.The page serve the file for downloading is called CertificateDownload.aspx ,I am generating the download link in Report.aspx.These 2 files reside on the same physical folder.I do not like the replace method ,but I could not think of another way of doing it.How can I improve my code or what is a better way of doing it.
I need the absolute url to be displayed as text in the web browser.[code]...
Generate MD5 And SHA1 Hash For File?
May 26, 2011I'm trying to generate an MD5 and SHA1 hash value for a given file with the following:
Imports System
Imports System.IO
Imports System.Security.Cryptography
Imports System.Text
[Code]...
How To Generate File From Binary Information In SQL
Jan 18, 2010I am writing a windows desktop application in visual basic and I need it to connect to a SQL database, take a rows unique id, and using that number generate a file from the binary data that is stored in the SQL database and save it to a file directory. The part that is hanging me up is the creating the file from the binary SQL data.
View 2 RepliesHow To Generate XML File From Array Of Structs
Apr 30, 2012I need assistance generating a xml file by reading values from an array of structs.
my struct looks like this:
public structure myStruct
dim ID as int
dim myArray1 as boolean
dim myArray2 as boolean
dim myArray3 as boolean
dim x as int
dim y as int
I have several instances of these structs. I also have universal variables that are declared outside of the structs. I am looking to generate a xml file like this:
[Code]...
But how would I assign the values of each element by reading them in from the struct? Or do I need to use the XmlSerializer Class instead?
How To Generate/create A Exe File Project
Jan 29, 2009Do anyone know how to create a .exe file from my vb.net project? I do not want the one in the /bin folder. This is because i want it to be able to run my application from a single EXE file.
View 6 RepliesHow To Secure A File That Generate With A Service
Apr 12, 2010I am programming a service for a company that will log valuable performance data on machines that they lease out to other companies. It is critical for them that this information is as safe as possible and that it can only be read by us (a program created by us that is). I already made a trippledes encryptor that works fine but i still have the issue that a person can delete or move or corrupt the file if he somehow manages to get out of the operation software and gain acces to it.So my question is: Can i lockdown a file and make it as good as impossible to change the file or delete it other then by being the admin or the program that is generating them?
View 1 RepliesCustom Cursor - "Image Format Is Not Valid. Image File May Be Corrupted?
Oct 11, 2011I created a new cursor (it works properly, I tried it in windows 7) but is not working for me in the program.I took the Windows cursor (aero_helpsel_xl, from C:WindowsCursors) and it appears to me the same error.i use with this code:
Me.Cursor = New Cursor("Patch..")
The problem say:: "{"Image format is not valid. Image file may be corrupted.
Parameter name: stream "}"
edit: I realized what the problem ... It can read only cur files with 24-bit color and lower - but it shows only two colors: black and white.
Dispose Of An Image For A Picture Box & Exifworks Class Does Not Release Image File For Deleting?
Jun 14, 2009I have an app that loads a jpg into a picyure box, then updates exif data in exifworks classThe problem is that when I save the image(from image used for picture box) or class (to save exif data) then try to delete, sometimes I get success, others it won't allow delet I have gone to the trouble of using gc.collect, do events, put the delete in a timer & wait for the delete before continuing & still get the problem
View 7 RepliesGenerate A Php File Depending On Selection On A Win Form
Feb 19, 2011I want to know if it is possible to generate a php file depending on selection on a win form in vb.net 2010. If so, does anyone has a link to a sample.
View 3 RepliesGenerate And Execute Batch File Over Network?
Jun 7, 2011am currently writing a program that uses multiple scripts we use to diagnose software we use in our environment. Currently, the only we retrieve our information is going to the local machine, and running the script locally, and retrieving the output results. The script is an batch file.The goal of the program I am currently creating is to automate the process by specifying which machines need to have the script ran on, generating the script, dispatching it, executing it, and retrieving the output results from the machine the program is ran on...
View 3 RepliesGenerate Receipt File And Send To Printer?
Feb 21, 2009generate receipt file and send to printer.
Here's i want to copy them as same sample receipt
My receipt has a Total Gas official receipt, customer number, station number, purchased, amount and charge
at the bottom of my receipt they have cashier and date..
Generate The Latitude And Longitude Values From The HDR File?
Mar 26, 2009I have a HDR file and DEM file,I want to generate the Latitude and Longitude values from the header file.Where that values are is used to list the elevation values from the DEM file.The file contains the data's like:
BYTEORDER M
LAYOUT BIL
NROWS 6000
NCOLS 4800
[code]....
Generate XML Directly Into A String Instead Of Creating A Xml File?
Aug 3, 2010How can I generate XML directly into a string instead of creating a xml file?
View 3 RepliesHow To Generate The Latitude And Longitude Values From The HDR File
Apr 19, 2012I have a HDR file and DEM file,I want to generate the Latitude and Longitude values from the header file.Where that values are is used to list the elevation values from the DEM file.The file contains the data's like:
View 8 RepliesVS 2005 Generate Checksums To See If File Changed?
Mar 12, 2010When my app closes, perform a checksum, digital signature, whatever on a data file, and save that in a text file.
When my app opens again, perform that same process on the file, and see if the new checksum matches the saved one, in order to determine if the file has been changed outside the application.
IDE :: Button Image From Resource File Or On Load Image Which Is Faster Way?
Dec 20, 2009i want to know, which way program runs faster1- add image to button through its property -> assign image from project resource file2- on form load event, assign images to buttons, from project resource file
View 19 RepliesCan Itext Generate Pdf File And Insert Into Database As Blob
Jan 12, 2011I just wondering can Itext done the following function before i dive into it.I want to develop a window application, and schedule this application in my server. This application should query the data from (oracle) and with itext help (i hope it help), generate pdf report. Then insert back to oracle as blob.
View 2 RepliesWrite A Program In .net Take Some Input From User And Then Generate Hex File?
Oct 24, 2010My project is GUI based. I want to write program in vb.net take some input from user and then i hav to genarate hex file so that it can be run on microcontroller. I just want to know weather hex file generation in vb.net is possible or not?
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