Check For Image Files?
Aug 24, 2010I have an image resized program and it works. The problem is when a user selects a non-image file in the file select dialog, it crashes. How can I check for image files?
View 4 RepliesI have an image resized program and it works. The problem is when a user selects a non-image file in the file select dialog, it crashes. How can I check for image files?
View 4 RepliesI've got an app where the user uploads an image and the app resizes the image three different ways based on different variables. They all use the same image. I can't check to see if it's done using the image so I wondered if there was a way to check to see if the file is writable. A small loop that exits once it becomes writable (or "deleteable"). Working out of VB.NET.
View 1 RepliesI Tried To Check If Part Of Image Existing In Another Image
Explanation:
full image:
[Code]...
In VB6 you could BITBLT things around before refreshing the screen. In .NET, I'm aware of DrawImage, but that can only be done on a paint event rather than before anything gets painted. The issue I have is, I need to open several files with image data in them and then build a bigger image with those smaller images. Before I could open them, BITBLT them to a Buffer. As far as I can tell .NET offers no way to do this as the only function I've been able to find (DrawImage) only works within the paint event. Is there still a way to do this in VS08 or no?
View 6 RepliesI know this is out there and probably illogical but I was wondering if it was possible to take multiple picture files and compact them into one file.... and then retrieve them from the program later? Way to combine any amount of image files into one file
Module Module1
Sub combine()
Dim img1 As New Bitmap("i1.jpg")
[CODE]...
Here is the original image:Here is a portion of that image (zoomed in):What is the best way to check if the second image is part of the original image?
View 1 RepliesI have a PictureBox on a VB form which I need to check in code to see if it does not contain an image.
View 7 RepliesI'm using VB.NET forms app and I need to check if a PictureBox currently has an image in it. How would I do this?
View 1 Replieshow to Check if clipboard has an image??
View 2 RepliesI need to check if a picturebox has an image in particular, to check an if condition. I allready try:
if picturebox1.image.equals(path) then
Do Something
else
[Code]....
how to check the of image size if he strored in DB and Dispay In the PictureBox
View 2 RepliesHow to check the picturebox have image or not ?
View 1 RepliesI have a question here. I'd like to develop a vb.net program to run thru all source code in a folder to look for certain strings.my initial thought is to create an .ini file then program will read the strings then start searching in the source code for the strings entered.
the final output will be an excel sheet, stating the filename and the line number.
is this a good way to do it? if yes, can i ask for a skeleton program?if no, any other way?
I want to have a windows application that would check a specific folder for any files, and if there are any files I will run some code to each file, I was going to use a timer and set it to refresh every 15 seconds or so but I am not sure if there are any other ways to do this that would not take up as much resources.
View 3 Replieshow I can search a directory (100 + folders) and see if each subfolder has files inside them?
Example:
root directory
- 123456789 (subfolder)
-------- image.tif
[Code].....
How can I check if the files have recycling?
Imports Microsoft.Win32
Imports System.Runtime.InteropServices
Imports Shell32
[code]....
so my GF have a virus that sends messages to other contacts from her skype so i was wondering if i cant track it by checking if some process is using the skype communication protocol or the exe itself. while i mess with it i notice that the skype message pop up with the question if i allow my program to access it when i was using the communication protocol.
View 2 RepliesI have this code:
Code: Try
Dim ftp As FtpWebRequest = DirectCast(WebRequest.Create("ftp://programserver@flyingpc.co.uk/german/" & TextBox1.Text & "activate"), FtpWebRequest)
ftp.Credentials = New NetworkCredential("programserver", "Language-123")
ftp.Method = WebRequestMethods.Ftp.ListDirectory
[Code]...
I know this sounds really weak how I am writing this but I cant find any better way to try and explain it. If someone could even just send me in the right direction,
I use the following code to check the background image of two picturebox but it not work.
name of 1st picturebox is :cell1
name of 2nd picturebox is:cell2
code :
If (cell1.BackgroundImage Is cell2.BackgroundImage) Then
'Do somethings
Else[code].....
Check in code, if a background image exists for a button.
View 8 RepliesThe Clipboard class has very handy methods to check contents, like 'ContainsImage' and 'ContainsText'.How do I check if a MemoryStream contains an image or a text?
View 5 RepliesI am trying to check if an image has been changed from a picturebox in a if statement. If I cant check if a image has been changed then can I check if a picturebox been clicked.
View 8 RepliesBasically I want to have a picturebox which shows an embedded resource if not connected to the internet, and an online image if connected to the internet.I assume this can be done on the form load event, I just don't know the code for it. Basically this is the logic though:
-If 'http:/[url].... is available (therefore connected to internet)
-Picturebox1.Image = http:[url].....
-Else[code].....
How can I code that properly? Would putting it in the form load event work?
I'm reading in an image (jpg) using the code below and I need to check that the image is no bigger than 150 pixels by 150 pixels and is less than 25k, how should I do this?
PictureBox2.Image = Image.FromFile(.FileName)
im getting a image from my database to a data set. before i convert it to a proper picture i need to check whether ds.Tables("userDetails").Rows(0).Item("photo") is EMPTY or NOT. How should i write the if condition? <code>If ds.Tables("userDetails").Rows(0).Item("photo")<> ??? Then
Dim pictureData As Byte() = DirectCast(ds.Tables("userDetails").Rows(0).Item("photo"), Byte())
Dim picture As Image = Nothing
Using stream As New IO.MemoryStream(pictureData)
picture = Image.FromStream(stream)
End Using
[Code]...
I am using PKZIP to unzip my files. I need to know bad files while unziping.How to check the bad files while unzipping using pkzip in vb.net. Sample code for this.
View 5 RepliesI am trying to get my vb.net application to look inside a folder on the web server and then let me know whether there are files in there or if the folder is empty.
View 3 RepliesThe program photographs people and save it to the database (SQL Server 2005 VARBINARY(MAX)) .Sometimes we get a bad picture means a binary file looks like '0X00' or somethng like that and when we try to display the picture we get an error. How can I check via VB.NET the validity of the binary file before saving it to the database Best Regards, Uri Dimant SQL Server MVP [URL]
View 3 RepliesHow do you set the FileSystemWatcher.Filter to check only two files.
Here's my code that doesn't even work.
watcher.Filter = "*.txt|*.ini"
I am trying to write a code to verify the existing files left in the folder. I have it when there are no more files left after sending it to anothere folder that the handler exception windows appears. I think it is be cause there are no files in the folder left and the system does not know what to do with an empty folder.
View 6 Replies