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I wanted to implement 2 layers in a picture box by using picture box background image and image property.
I am able to do it when I am drawing some lines at run time on picturebox image and having a picturebox back ground image.
But when i save the picture box image (with transparent back ground) as .gif i get a black background.
Can any one plz help me with ho to save the image with transparent back ground
I am using the following codes
Dim ms As MemoryStream = New MemoryStream()
'Get the inmage into ms from picture box
picDraw.Image.Save(ms, picDraw.Image.RawFormat.Gif)
I am keeping the image in a memory stream so that i can send the stream to DB
Regards
Nishkarsh
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nishkarsh_k wrote: I wanted to implement 2 layers in a picture box by using picture box background image and image property.
No such thing when using a PictureBox control. There's a Background image and the Image properties you can set, neither has anything to do with the other.
nishkarsh_k wrote: But when i save the picture box image (with transparent back ground) as .gif i get a black background.
Of course. The background image is not part of the Image property at all, so it doesn't get saved with the Image you save.
Your solution would be to create a new Bitmap object, draw the background image to it, then draw the foreground image on top of it. Then you'll have your composited image that you can save.
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I think i need to re-frame my issue...
I am having a application which is similar to paint brush. Now when i am using a background image in the picture box and put another bitmap as picturebox image (bitmap is created in codes) with a transparent background it works perfectly the way i want.. I am able to do drawing (like mspaint) over the background... which are actually drawn in the picturebox.image not on picturebox.backgroundimage
Now the objective is to save the memory bitmap with the transparent background (which is displayed there in picturebox.image and available in memory bitmap) and display it when required (with transparent back), but when i save it the background becomes black
Any idea of how to save a image with transparent background..
Note: I am using GIF format to save the image, as per my knowledge we can have transparent background in gif
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OK, now I get what you're talking about. Saving a GIF with transparency is not as easy as it should be. Read this[^].
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Hi!
I had got in a situation of creating a Crystal Report dynamically without creating a .RPT file externally.
Is there any way by which i can give the report fields dynamically and make the connection within the codes of VB.net 2005.
Thanks!
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Yes, You can do it by using .xlt and .xls
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I did not realise that this was possible with Crystal, and will not investigate, as it will resolve a problem I have.
Thanks
Steve Jowett
-------------------------
Real programmers don't comment their code. If it was hard to write, it should be hard to read.
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Hi,
I had a problem that I want to pass one or more data from one application to another. For example I have two application named "Application_1" & "Application_2"
Application_1 is already running in my system.
When I open the Application_2 it has to send the information like its name & time to the application_1.
How can I do this in VB.net(Windows application) Please anyone help for me to solve the above problem.
AdVance Thanks,
Karthiyayini.
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WM_COPYDATA, named pipes, writing data to a commonly known temp folder, will all work.
Of course, this assumes that you are writing both apps.
Christian Graus
No longer a Microsoft MVP, but still happy to answer your questions.
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Consider using the Microsoft Message Queue (MSMQ)<[^]">
Steve Jowett
-------------------------
Real programmers don't comment their code. If it was hard to write, it should be hard to read.
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Hi everybody,
I am using a Sockets.NetworkStream to request approval or denial from another machine, but I do not want to sit and wait for it indefinitely. Could anybody offer some guide?
This is the code I am using:
....
Dim iMsg() As Byte
Dim Stream As Net.Sockets.NetworkStream
Dim iTPC As New Net.Sockets.TcpClient()
MgrIp = Get_UpdloadApprovIP()
If MgrIp = "" Then
Msg("No manager's available to service this request!", 16, "Cannot Proceed!") : Return
Else
iMsg = System.Text.Encoding.ASCII.GetBytes(sClerk & "|" & MyIp & "|")
'//sClerk & MyIp are local variables
iTPC.Connect(MgrIp, 10002)
Stream = iTPC.GetStream
Stream.Write(iMsg, 0, iMsg.Length)
ReDim iMsg(1) '//honestly can't remember why I am doing this
Stream.Read(iMsg, 0, iMsg.Length)
iTPC.Close()
iMsgStr = System.Text.Encoding.ASCII.GetString(iMsg)
If CType(iMsgStr, Short) = 1 Then
UploadFrm.ShowDialog()
Else
Msg("Your request to upload your data has been denied!", 16, "Cannot Proceed!")
End If
End If
....
Thanks for your time and help 
Alex.
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You're not going to be able to do this with such simple code. The answer is to use the Asynchronous version of the Read method. This is goign to result in MUCH more code than you're got here. For a few examples, Google for "VB.NET TCP Server".
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Thank you Mr. Kreskowiak for your guide.
Alex.
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HI...
How to save and restore values in multi textbox,Datetime picker,combo box when the form close using vb.net !?
I found the source code for saving values of single textbox in external file generated by the form.
Unfortunately because I’m newbie in vb.net I couldn’t make it work with multi textboxes??
----------------------------------------------------
the code for single textbox:
Private Sub Form1_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
If IO.File.Exists(Application.StartupPath & "\save") = True Then Kill(Application.StartupPath & "\save")
Dim Read As String = textbox1.Text
FileOpen(1, Application.StartupPath & "\save", OpenMode.Binary)
FilePut(1, Read, -1)
FileClose()
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not IO.File.Exists(Application.StartupPath & "\save") Then Exit Sub
Dim Read As String = Space(FileLen(Application.StartupPath & "\save"))
FileOpen(1, Application.StartupPath & "\save", OpenMode.Binary)
FileGet(1, Read, -1)
FileClose()
textbox1.Text= Read
End Sub
---------------------------------------------------------------
My Q.How to save the values if we have many textbox or many datetime picker when the form close??
Regards...
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I used application settings to store things like the path to where my reports are stored. My development file structure is different from my production file structure.
Here is a snippet of code for loading a string ...
Me.tbox_rptPath.Text = My.Settings.rptPath.ToString
You will find these settings by clicking on your "My Project" in your solution explorer, then click on the tab called, "Settings". Define whatever property you desire to store the selected values in the combo boxes, etc.
My property is called, "rptPath" in the above example.
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Thanks for Reply...
I was looking for simple way coding for saving values !!
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I need to develop a process to import a Lotus 123 spreadsheet into SQL Server. Has anybody out there ever used .NET to work with Lotus 123 files? I haven't been able to find a way to access the files through a datasource. Does anybody know how to start?
Thanks
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Thank JZ, but will that work for Lotus 1-2-3 spreadsheets or is that only for the Lotus Note email database?
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Oooh, I'm not sure. I think I've only done the database with it.
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According to Microsoft's KB[^] article, there should be a Lotus 1-2-3 ODBC driver available via a 3rd party (such as directly from IBM or whoever owns Lotus).
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Having no experience with Lotus at all myself, I found a few apps on the web that can convert a Lotus 123 spreadsheet to xml.
Perhaps you could look into first doing a conversion to xml, from which you can then easily import into any database.
I personally have done the same with excel files.
for what it is worth...
Johan
My advice is free, and you may get what you paid for.
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Thanks to everybody who answered my question. After doing some research, and not coming up with much, I decided to convert the Lotus 1-2-3 file to an excel spreadsheet as a first step. It's a manual process now, but I'm pretty sure I can automate it. I opted for excel because then I can use a reference to Microsoft Excel 9.0 Object Library and easily work with workbooks, worksheets, ranges, etc. It makes the rest of my work easier. Maybe not the optimal solution, but it seemed more practical than engineering to work with Lotus given the time schedule.
Thanks!
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I'm Parsing ATOM Feeds using File.ReadAllText and RegEx isolate item nodes. Some Atom feeds work just fine, others return "no content" (even though I've verified through a reader that "item" content exists).
It appears that the feed is blocking the content ...I'm having a synaptic mis-fire isolating the problem. I can't locate any documentation on this issue.
Someone point me in the right direction?
...T
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i use VisualBasic 6 Enterprise and want to configure the visual source safe
i have installed all the latest service pack releases untill service pack 6
but i keep on getting this error
Corrupt 'um.dat' file
Please help me...i need to share some source files with my manager
Thanks
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