Visual Basic

Page 1808




  • Topics
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  • Regarding windows API waveInAddBuffer
    by Ganesh sethuraman
    3 Replies
    Last post by Ganesh sethuraman
      • Hi, I am developing a application in Visual Studio 2005 using visual basic which detects while we speak in microphone. I serached in the net and found there are number of API's available for working with sound. In which i found we will be filling a buffer using the API waveInAddBuffer. But when i tried it the function is successfull and i received a 0 as return value. But the buffer is not
  • How to work out the amount of time between a start time and an end time.
    by Total ICT
    3 Replies
    Last post by Total ICT
      • I have a form wtih a start time and a finish time and I want to work out the diffrence between them... Start Time: 11:00 End Time: 12:34 Time Taken: 1 hr 34 mins. Whats the best way of doing this in VB.NET Thanks in advance.
  • Dropdown DataSource set to GenericList returning nothing
    by NoEgo
    4 Replies
    Last post by kleinma
      • I have this function in our Data Layer: Public Shared Function RetrieveAll( ByVal CamID As Integer ) As List( Of AStatuses) Dim statusList As List( Of AStatuses) = New List( Of AStatuses)() Dim reader As IDataReader Dim parameter As New SqlParameter( "@CamID" , SqlDbType.Int) parameter.Value = CamID Try i
  • recently used files
    by Zeldacat
    3 Replies
    Last post by Bruno Yu - MSFT
      • I am doing an exercise for sequential files etc. I am trying to figure out the best way to code a recently opened file. i have done most of the code, it's just where do i go from here with it Any help or suggestions would be very welcome. thanks Zeldacat
  • Load Crystal report failed after saving report
    by Alla2552
    3 Replies
    Last post by Alla2552
      • I have Visual Basic 2005 windows application that is connected to Access 2003 database and has multiple Crystal reports (ver 10.2.3600.0). I can preview all reports without problem. But when I preview report, save it to specific location (saving data as Word report) and then try to open any other report - getting Load report failed error. It seems like it's switching location of the reports to the
  • Programmatically searching pdf files
    by LauryBurr
    1 Replies
    Last post by Christian Liensberger - MSP
      • (If this is the wrong forum for this question please point me in the right direction!!) I'm trying to create a subroutine that will search all pdf files in a specific folder for a user-specified word or phrase, and will then open the Acrobat search pane with the list of all files & occurrences of that word or phrase as if the user had first opened Acrobat and used the facility from within
  • OPC - I can read but I can't write
    by StumblingInTheDark
    2 Replies
    Last post by SJWhiteley
      • I have an application that gets data using OPC (currently using the opcdaauto.dll). It works on my machine and several others out in the field. They are all running Windows XP Professional SP2. Yesterday, due to an emergency I took a Windows 2000 box running SP2. I upgraded it to SP4 and did all the security patches, etc. I installed VB2005 and put the application on it. I have no problems
  • Lines as objects
    by Dirihle
    1 Replies
    Last post by kleinma
      • Hello, is there any way to make drawn line to be a selectable object in visual basic 6.0
  • Path mapping just like asp:image?
    by trent_m
    2 Replies
    Last post by trent_m
      • I watched a webcast on ASP.NET 2.0 and there is a cool control <asp:image>. This control has a very nice feature in that is you add this value, "~\Images\MyImage.jpg" to the property ImageUrl the compiler will automatically map the path I just defined as it stands in your project structure to match your deployment structure. I want to know if there is this feature in good ol
  • Rotating a picture box
    by halfazner
    14 Replies
    Last post by Spidermans_DarkSide - MSP, VSI
      • Hello, I have a picture box - Picturebox1.image as a straight horizontal line. I want the right-hand end of the horizontal line to always point towards the mouse pointer when the mouse is moved. I've seen code snippets like: PictureBox1.Image.RotateFlip(RotateFlipType.Rotate90FlipNone) However, I need my picture box to PIVOT (on the left hand end of the horizontal line) rather than ROTATE and I ne
  • cookie-cut a small rectangle out of a larger bitmap to a smaller one
    by Werner Kraemer
    2 Replies
    Last post by Werner Kraemer
      • Visual Basic 2005 (newby) - I have an image placed into a bitmap from which I need to take a smaller rectangular area and copy that unmodified to another bitmap. The destination bitmap is of the size of the rectangular cut. Thus, one would think that is easy, but, I am not experienced enough to know the declarations and methods that make it easy.
  • Problem with Array of Byte Array
    by Bhupathi Venkatesh
    2 Replies
    Last post by Bhupati
      • Hi, I need to upload multiple files using Web Service. For this I am using MTOM with WSE3.0. It works fine with the single file loaded into the Byte Array. But for uploading mutiple files I need array of Byte Array and load all the file contents into this array elements(Byte Array). But when I initialize the 2-dimension array as below Dim btArray(100)() As Byte And when I try to
  • Referencing a DataAdapter
    by tattoo
    6 Replies
    Last post by CommonGenius.com
      • I have a question regarding DataAdapters. I have created a dataadapter ("MyAdapter") by adding a New Datasource from within the IDE. In the program code I then use the Fill method to get the data into the dataset. Now, further on in the program code I want to change the SELECT Statement that is contained by the SQLCommand.CommandText that is attached to "MyAdapter&q
  • MDI vs child form
    by viktor454
    7 Replies
    Last post by Jonathan Allen
      • Hello I have a problem I have MDI form and one child form of that MDI form. I have a Datagridview on child form, binding navigator and ... I can navigate Datagridview from child form but I need to navigate Datagridview from MDI form with one button witch would be represented movenext() order. I tryed many things but no luck Please help
  • vb6 conversion
    by CBrittWardSr
    2 Replies
    Last post by JohnHart_MSFT
      • I've taken, a look at the toolkit; however I'm having little luck in finding msft guidance on converting VB6 to VB/C#. Could someone point me to some in-depth articiles or guidance
  • vb.net vs vb6 pros and cons help
    by Jamie LJ
    10 Replies
    Last post by SJWhiteley
      • Hi there i am a seasoned vb6 and vb.net developer and where i currently work, they use VB6. Now, we develop a range of office plugins for a client, and they currently use vb6, they also do some other projects with vb6. I want them to change to vb.net They have asked me for a list of Pros for switching, and also some Cons. The pros i have are: .Net is future proofed, VB6 will not be
  • sql editor to vs 2005
    by xswzaq
    3 Replies
    Last post by SunSet_SunRise
      • I have this sql statement in sql editor and it works without any problems, but when I try to put it in vs 2005 (to add new tableadapter), it give me error lists: Error in list of function arguments: 'ROUND' not recognized. Error in list of function arguments: ',' not recognized. Error in list of function arguments: '*' not recognized. Error in list of function arguments: ')' not recogniz
  • Show a form inside another form that is NOT a parentform?
    by nyqa
    2 Replies
    Last post by tkerns
      • If I create a parentform and show a childform maximized nside that form it's all fine. But if I then opens up another childform inside the parent that is not maximized the first childform will be brought back to normal size and not stay maximized. I want a parentform with a childform inside that is always maximize and then I want to open other forms inside the parent that can be set to a specific
  • VB6 and VB.Net on same machine
    by Monk7
    1 Replies
    Last post by SJWhiteley
      • Can i install VB.Net alongside my existing installation of VB6 Can i run any one of these versions and return to the other seamlessly
  • Richtextbox control
    by Veena_aku
    1 Replies
    Last post by JohnWein
      • I have richtextbox control in my application, and i set the font in textchange event of the control as Rtb1.SelectionFont = New Font( "Tahoma" , 12, FontStyle.Bold) however when i paste text from word, the font doesnt change , the font still remains the same as that on the word docment, what do i need to do Appreciate your Help
  • Single Instance DLL
    by netpicker9
    2 Replies
    Last post by MAYUR_WAKADE TENDULKAR_23d722
      • Hi, I wrote a VB.net DLL (Shared) which contains Windows Forms in it.. How do I restrict the application to have SINGLE INSTANCE Note: I am not using Main(). <ComClass()> _ Public Class clsAccounts Public Function AccountsSetup( ByRef objABC As Object , ByRef objXYZ As Object ) As Boolean Dim SeefrmMain As New frmMain Dim SeefrmAccounts
  • Slow Visual Basic IDE
    by electric_eye
    3 Replies
    Last post by electric_eye
      • i know this might be a redunandt question/issue regarding the slow perofrmance of the IDE in Visual Basic, but i have a bit different symptoms; the IntelliSense is working fine, but other features like, saving the document, or adding new lines or detection of syntax errors (the blue line takes a while to appeare or disappeare)! i tried doing the tips that were mentioned in other threads, but no
  • Simulate printscreen
    by Bram...
    3 Replies
    Last post by JohnWein
      • hi, i want to simulate the pressing of the printscreen button (keyboard) i tried several codes but none of them work becaese they are made for vb6 or other versions i tried 'keybd_event Function' lik in http://www.developerfusion.co.uk/show/274 but i did not work. whats the translation for vb2005.net
  • Listbox coding help
    by Flame4e
    4 Replies
    Last post by Flame4e
      • ok so im still somewhat nooby at this but i ran into a problem i have a list box show up after a button is pressed so i wanted to when any option is clicked in the list box to give me a way to know which one it was so i could make other certain things show up accordingly thanx ahead
  • Microsoft Visual Basic logo program still around?
    by JDR2500
    1 Replies
    Last post by Bruno Yu - MSFT
      • Hi, Does anyone know the status of the " Featuring Microsoft Visual Basic " logo program   We used to carry this logo on our applications but indications are it's defunct now.  I can't find he requirements document anywhere on Microsoft's web sites.  Also, the requirements document on Lionbridge/Veritest's web site is dated July 2000 .  It talks about Windows 95 and makes