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Hi everone,
I am using VBA for Visio and I want to store an image into an XML element. So, basically I read the image into a byte array like this:
Dim FileNumber As Integer
Dim imageBase64() as Byte
FileNumber = FreeFile()
Open "C:\hello.gif" For Binary As FileNumber
ReDim imageBase64(LOF(FileNumber))
Get FileNumber, , imageBase64
Close FileNumber
This reads the image data correctly into my byte array. But now wheever I attempt to put this into an XML element like:
element.nodeTypedValue = imageBase64
This method does something to the image data and adds something else instead. What I want is to have the byte array as is.
Any help would be greatly appreciated.
Thanks!
Pankaj
/**
I'm the one who's gonna have to die
When it's time for me to die
So let me live my life
The way I want to
- Jimi Hendrix
*/
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That's because you haven't converted the image to an actual Base64 string. All you've done is read the binary data and attempted to write it to a text file. This, of course, writes all kinds of special characters to the file which are no legal in an XML document.
You have to either find a VBA library to convert binary data into a Base64 string and back, or encapsulate the binary data in a !CDATA XML element.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Does Visual Basic.NET or VC.NET provides some native support/APIs for programming the WLAN card
Can any one help me?? Urgent
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The .NET Framework doesn't include ANY native support for working with ANY hardware. In the NT Kernel environment, all hardware is abstracted from the application. This means that you have to rely on either making your own DeviceIOCTL calls to the devices driver or using an SDK for the hardware.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I'm trying to catch messages sent to a window in VB6
This is how it's done in .NET but how would i do it in VB6
Protected Overrides Sub WndProc(ByRef m As Windows.Forms.Message)
If Int(m.Msg) = 301 Then
Dim res As Integer
res = meD.putDevice(93, "") 'just a function call
Else
MyBase.WndProc (m)
End If
End Sub
Please help!
regards/Jocke
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It's nowhere near as easy to do in VB6. You have to replace the existing WindowProc with your own. Check out this[^] example for the code.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I've just installed 2005 Beta, and it is quite a bit different to 2003 that I am currently using. I'm writing VB code. When I used by 2003 app, 2005 upgraded it and I then found I have a lot of errors.
I need to finish this application and I would like some advice as to whether I should stick with 2003 or move on?
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if you're finishing up your application and geting ready to release it into the wild before the v2005 release date, then i'd say stick with 2003 for now. otherwise i believe you're going to have to sign up for the go-live license.
-jim
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I'm supposed to do a project using only XML, Microsoft Excel and Vb.Net. My problem here is that I'm supposed to plot a graph out with values extracted from an Excel file. Are there any ways to plot the graph without considering the size restrictions in Vb.Net (the size of the graph might be big), and how do we extract the values from the Excel file?
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You can extract the values from the excel file using following code:
Private ds As DataSet
Private myCommand As OleDbDataAdapter
Private myConnection As OleDbConnection
Private Sub FillDataSet()
myConnection = New OleDbConnection( _
"provider=Microsoft.Jet.OLEDB.4.0; " & _
"data source=E:\EmbedBday\Bday.xls; " & _
"Extended Properties=Excel 8.0;")
If Not myConnection Is Nothing Then
myCommand = New OleDbDataAdapter( _
"select * from [sheet1$A1:A35]", myConnection)
If Not myCommand Is Nothing Then
ds = New DataSet
myCommand.Fill(ds)
myConnection.Close()
End If
End If
DataGrid1.DataSource = ds
End Sub
where "Extended Properties" refers to the MSExcel version on your system which is Excel 8.0 for version higher than Excel 97(inclusive).
Lata Agrawal
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i have coding a program that uses access database which was filled on a datagrid using oledb. my programing has a delete buttonwhen it was clicked the update button will be enabled. here is problem i have some trouble in coding update function to update the records out of the underlying datasource.(saving the changes on the access database)
any info is greatly appreciated!!!tnx
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can i write a textfile on an ftp using vb.net? the textfile is situated on my ftp. i want that when i click on send the textfile will add my words in that textfile which is on the ftp. Can i make this happen using vb.net??
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Sure. You have to download the file to your machine first, modify it, then upload it back to the FTP server. An FTP server caanot be used like any other filesystem. It doesn't support "random access" like your local file system.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I can't modify my textfile within the ftp then??
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No, there is no FTP command to "append text" or similar. As stated you can download the file, access it and upload it back.
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can download the textfile from the ftp and upload back using vb.net?? Sorry but i want to make it happen! 
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So what are you having a problem with?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I want to make a small messanger that will recieve the text from a textfile inside my FTP. I dont know how to make this happen! Can someone tell me the coding how can i download the textfile, modify it and upload it back!  Thanks!!
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Search the articles for "FTP". You'll find a bunch of examples, mostly in C#, but they get the concepts acrossed.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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the articles from here?? on codeproject? because i am not finding a suitable one for me! 
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What, you want'ed it to be cut and paste and do everything exactly how you needed? It doesn't work that way. You have to read the articles and study the code to see what's going on so you can "roll your own". The articles and code samples are meant to teach techniques, not be free code snippets that work like plugin modules.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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This group "LEARNVBDOTNET" is a yahoo group of close-knit individuals who are gathering together to learn VB.Net under the guidance of Bill Dennis. He uploads lessons and files periodically to the group. This is not a site which you would use in place of CODE PROJECT though. It is for individuals who want to learn with others at the same level of experience as themselves in a very personal and interactive level. It is owned and operated by Bill Dennis. I am just a member, but found it usefull enough to make me want to share it here with my fellow CODE PROJECT lovers. I am not trying to advertise a competing site at all. Check it out and you will see what I mean. 
Yahoo! Group LEARNVBDOTNET
Mark Linehan
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get out of here if you don't like CodeProject (the best programming forum ever !! )
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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hello, i want have a messanger and i want to make the form to read the textfile every 2 seconds automatically! how can i do this? I want the textfile to be read by the form and put the words that are in the textfile into a RichBox which is situated in my form. Please help me in this!?
Adrian De Battista
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If you want to read a text file every 2 seconds, drop a Timer on your form and set it's Interval for 2000 milliseconds. In the Tick event for the Timer, put your file reading code.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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