What code should I use to compare two pictures?
I tried those:
If PictureBox1.Image <> PictureBox2.Image then
End If
'and I tried this too:
If PictureBox1.image IsNot PictureBox2.Image then
End If
'But that all did nothing
How do you find out what the screen resolution is and then make a comparison. ie if the resolution is 1024 x 768 do one thing else do another.
View 2 RepliesI was wondering how to make pictures move up and down.
i know that this:
PictureBox1.Left += 10
Makes it move right.
But how do i make it move up and down?
I am making a Full Featured Picture Editor how can I Make write on pictures Button
View 1 RepliesI am trying to make an app which can send/receive files/pictures. I am trying to make a app which will get a picture of the users screen and send it to me, and display it in a picturebox at a set interval. With this, I will be able to sort of see what someone is looking at without having to have him send screenshots constantly.
Remote assistance does not seem to work for these apps, shows black, but I can make the program already get an accurate screenshot and display it of this program, I just need to know how to make it send it to me and display it to picturebox.
The thing I have been using is the MultiUser TCP chat application off MSDN's website, I don't know if this will work, but I need to make it send somehow and display it.
Im make a portable program which has a form with a few different pictures like a photo gallery.when you hover the mouse over a picture it will appear enlarged in a floating box infront of the form. Then when the the mouse is taken away from this floating box the box will disapear and leave you with the picture gallery again?
View 3 RepliesIm using a black n white image of a human as my back ground and panels to display the same bits in color when the area is clicked. What isn't working for me is the panels are slightly overlapped and one will always be on top of the other. it is transparent so you can see the back ground, but not the panel underneath it when it has a picture in it.
View 6 Repliesresult = SendMessage(buttonhandle, BM_GETSTATE, 0, 0)
buttonChecked = (result = BST_CHECKED)
Now I want to know whether the bit for BST_CHECKED is turned on or not.
How would I do that?
I can do
buttonChecked = (result % 2 = BST_CHECKED)
Is there a better way?
What is the difference (in bref) between (.NET)
myString == otherString
and
myString.CopareTo(otherString) == 0
read this post carfully before you dive headlong into outlining what's wrong/right with the communities.
View 3 RepliesPossible Duplicate: Fastest serializer and deserializer with lowest memory footprint in C#?
I'm using BinaryFormatter class to serialize an structure or a class. (after serialization, I'm going to encrypt the serialized file before saving. (And of course decrypt it before deserialization))But I heard that some other serialization classes are present in .Net Framework. Like XmlSerializer, JavaScriptSerializer, DataContractSerializer and protobuf-net.I want to know, which one is best for me?Less RAM space needed for serialize/deserialize is the most important thing for me. Also speed is important.
I am trying to compare two datatables and generate a resultant datatable of rows that do not match based on customer number. The main table "Customers" contains all customers that have been placed in our system. I am trying to generate a table of customers, "dtResults," that we have not ever generated an invoice from a table called "CurrentCust".I would like someone to look at the attached code and see how I can handle the 'InvalidCastException was unhandled', 'Unable to cast object of type 'System.String' to type 'CustomerDataTable' error. Error occurs at line 43.
1
Option Explicit On
2
Option Strict Off
[code]....
I have a code in vb, and I'm trying convert it to c#.
_nextContactDate.ToShortDateString > New Date(1900, 1, 1)
This is _nexContractDate declaration:
Private _nextContactDate As DateTime
Comapre datetime to string?
im trying to compare time value of to two datetimepickers, i tried to use dt_Start.Value.TimeOfDay > dt_End.Value.TimeOfDay but it doesn't work. btw, i trying to make a scheduler. here are some of my codes:
Dim strUpdate As String
If dt_Start.Value.Date > dt_End.Value.Date Then
MsgBox("End date is earlier than Start Date. Please check.", vbExclamation, "Error!")
ElseIf dt_Start.Value.Date < Today.Date Then
[Code]...
In C I write an if statement like:
if (a != 0)
How do I write this != operator in VB?
If Object.Value IsNot "Something" Then Can you do this, or are there certain cases in which it wouldn't work? Wasn't sure if this should only be used for integers and booleans.
View 3 RepliesI have searched a lot on the web about changing file attributes in .net , it takes me a long time to get the final code but it was really good. But after all of my search I didn't know why we use "And" when we compare file attribute like this:
If (System.IO.File.GetAttributes(FilePath_txt.Text) And System.IO.FileAttributes.Hidden) = System.IO.FileAttributes.Hidden Then
MsgBox("File is hidden")
Else
MsgBox("File isn't hidden")
End If
Otherwise when I want to set Multiple attributes for on file I have to use "Or" with it like this
System.IO.File.SetAttributes(FilePath_txt.Text, IO.FileAttributes.System Or IO.FileAttributes.Hidden Or IO.FileAttributes.ReadOnly)I know this isn't a big problem but , I can't write a code I don't know how it is actually works.
I want somehow to temporarily store and compare two images capture from my web cam every 5 sec. (basically i`m going to use this as motion detection)I figure out how to perform pixel to pixel comparison but the problem is how can i store the images temporarily every 5 sec?Do i need an array?Can i avoid saving the images for the motion detection?Also is it better to convert the images into gray scale or black & white for the comparison or as they are
View 5 RepliesI want to compare between the cell value with the value (parameter) in database. As example, if my cellvalue value is 3 and my paramater(a) in my database is 5 it will be like this
if cellvalue<a then
(some code)
end if
I don't know the exact data type. The reason I need to use data type is because my data is dynamic.
Here is my
protected SubGridView1_RowDataBound(ByVal Sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;DataSource=C:UsersmeDocumentsVisual Studio 2005WebSitesCSGCSG1.mdb")
con.Open()
[Code] ......
I have a computer that takes in a barcode through a Visual Basic program on one computer and I want to be able to compare that barcode as a String to data on a different computer on the same network by ethernet connection where the data is stored in an Excel 2010 file (.xlsm) in Column A in a workbook called 'Data.xlsm'. Before the data is allowed to be saved or used further in the program on the first computer, I would like for the comparison to happen.
Some more details that you all may or may not need.
Computer 1 (where barcode is scanned): Windows 7, Office 2010
Computer 2 (where data file is stored): Windows XP, Office 2007
I am making a Texas hold'em poker game for my class project. I already have the cards in the game through an image list. I am now trying to compare the player cards with the flop, turn, and river card to tell the player what they have and if they have won or not. I have tried a number of different things but have come up short. This is the last thing I tried[code]...
View 6 RepliesWhen using the Dictionary class when the key and value types are your own custom types, is it possible to specify the property of the key type object to use with the ContainsKey method? Best described with an example:
Dim dict as New Dictionary(Of CutsomType, AnotheCustomType)
Dim obj1 as CustomType ' Custom type with 3 properties ID, LastName and FirstName
Dim obj2 as AnotherCustomType
[Code]....
I could just omit the lines with ContainsKey but I'd prefer to know how it's making the comparison and how to change it if required. I don't want to use an integer containing the ID for the key type because I want to reference the whole object later on again.
i have 2 excel sheets (file1.xls, file2.xls), both with 2 columns. the first column of both files contain keywords, (both files have the same). now i want to write code in excel that compares the 2 files and put all the cells that are different in a new file (file3.xls). i already saw an example here on the site, Excel sheet values comparison, but somehow it doesn't fit for what i need, and i don't get it to work.
View 7 Repliesi'm building an image library and one of the things i want to do is compare the most common color in a given image to a set of established colors in rgb format the way i'll probably do this is create 3 arrays for the average r,g and b of each given image, and then compare them to my established values for r,g and b that i want to match to so if my first image has the average values of 255, 125 and 5 for r,g and b..what would be the best way to do a nearest match against my pre-established colors? (about 32 in total)
View 1 RepliesI am working on a program for a customer and am working in VB2010 in VB language. I have two rather large files that contain data. File #1 is over 300,000 lines of data. File #2 is over 100,000 lines. The files are CSV text files. On a User Form, there are two values, "StartTime" and "StopTime". This is the process I am doing:
1. Read both files into ArrayLists
2. Get item #1 of ArrayList #1 (we'll call this "A")
3. Get item #1 of ArrayList #2 (we'll call this "B")
[code]....
I am using Entity Framwork and have an Entity Customer with a property of[code]...
However I noticed that this code does not get executed when Customer.CustomerStatus Is Nothing.
I have a form containing a checkedlistbox, I want to be able to do a simple comparison between the checked status before and after to see if there has been any change. I have a copy of the "before" version of the checkedlist box and I thought I could just compare the two CheckedItems but it always thinks they are different, I could iterate through the entire checkedlistbox but I thought there would be an easier way.
[Code]
which is more efficient?(Assume case statements, etc., cannot be used.)
If a Then
If x Then
ax()
ElseIf y Then
[code]....
currently I am using something like the following:[code]It seems to work fine, but I've seen posts on different blogs and stuff that say string.compare is better for some reason.Is this ok to use or should I be using string.compare()?
View 3 RepliesI am trying to do a comparison between a date in my db and a date in a textbox.I am using the following
CDate(Me.txtVrijeDatum01.Text).Date <> CDate(reader("VrijDatumVeld01")).Date
It works pretty well except when the textbox is empty or the value in the db is NULL.