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steve_9496613 wrote: Anybody knows how I can do?
Try MSDN[^] 
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Well... I can't say that I have understood everything in the MSDN example but I managed to convert it to Visual Studio .NET 2008 and to make it work!!!!
Yes, it would be easier something like Button.BkImage("image.bmp") but ... it seems that the Compact Framework is missing many things that I need!!!
Once again, Thank you Eddy!!
I publish the code of MyImageButton class if it can help someone or anyone has any corrections to suggest.
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Drawing.Imaging
Public Class MyImageButton
Inherits Control
Private image As Image
Private FirstTime As Boolean = True
Private bPushed As Boolean
Private m_bmpOffscreen As Bitmap
Sub New()
bPushed = False
Me.Size = New Size(21, 21)
End Sub
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
Dim gxOff As Graphics
Dim imgRect As Rectangle
Dim backBrush As Brush
If (FirstTime) Then
m_bmpOffscreen = New Bitmap(ClientSize.Width, ClientSize.Height)
End If
gxOff = Graphics.FromImage(m_bmpOffscreen)
gxOff.Clear(Me.BackColor)
If (Not bPushed) Then
backBrush = New SolidBrush(Parent.BackColor)
Else
backBrush = New SolidBrush(Color.LightGray)
End If
gxOff.FillRectangle(backBrush, Me.ClientRectangle)
If (Not image.Equals(DBNull.Value)) Then
Dim imageLeft As Int32 = (Me.Width - image.Width) / 2
Dim imageTop As Int32 = (Me.Height - image.Height) / 2
If (Not bPushed) Then
imgRect = New Rectangle(imageLeft, imageTop, image.Width, image.Height)
Else
imgRect = New Rectangle(imageLeft + 1, imageTop + 1, image.Width, image.Height)
End If
Dim imageAttr As ImageAttributes = New ImageAttributes()
imageAttr.SetColorKey(BackgroundImageColor(image), BackgroundImageColor(image))
gxOff.DrawImage(image, imgRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, imageAttr)
End If
If (bPushed) Then
Dim rc As Rectangle = Me.ClientRectangle
rc.Width -= 1
rc.Height -= 1
gxOff.DrawRectangle(New Pen(Color.Black), rc)
End If
e.Graphics.DrawImage(m_bmpOffscreen, 0, 0)
MyBase.OnPaint(e)
End Sub
Private Function BackgroundImageColor(ByVal image As Image) As Color
Dim bmp As Bitmap = New Bitmap(image)
Return bmp.GetPixel(0, 0)
End Function
Protected Overrides Sub OnPaintBackground(ByVal e As System.Windows.Forms.PaintEventArgs)
MyBase.OnPaintBackground(e)
End Sub
Protected Overrides Sub OnMouseDown(ByVal e As System.Windows.Forms.MouseEventArgs)
bPushed = True
Me.Invalidate()
MyBase.OnMouseDown(e)
End Sub
Protected Overrides Sub OnMouseUp(ByVal e As System.Windows.Forms.MouseEventArgs)
bPushed = False
Me.Invalidate()
MyBase.OnMouseUp(e)
End Sub
Public Property MImage() As Image
Get
Return image
End Get
Set(ByVal value As Image)
image = value
End Set
End Property
End Class
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You're welcome
steve_9496613 wrote: I publish the code of MyImageButton class if it can help someone or anyone has any corrections to suggest.
It might get buried under new messages on the forum here; it'd be more visible if you post it as a "Tip[^]".
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You can use Label instead button and lay text over image.
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Thank you halabella for your answer.
It can be a possibility but in this way I think you lose the behavior of the button (button pressed - button not pressed).
In my particular case I could just use an image because the text I need to write is a symbol of a font type not included in my Windows CE (for this reason I need to put an image in a button) but there would be much difference aesthetically with the other buttons of the form.
...but perhaps I could change the image on the click event... yes, it is a possibility.
Thanks 
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Hi steve,
You can use ImageButton control. An attribute called ImageUrl is where you specify the path to your image.
Hope that have you. Happy coding!
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Hi s3275049,
thank you for your replay but unfortunately MSDN says that the ImageButton class is not supported in the Windows CE platform. 
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Hi all,
I need to extract each byte from a 32 bit value.
I did something like this but it doesn't work:
Dim b1, b2, b3, b4 As Byte
Dim SingleVal As Single
SingleVal = 0.125
b1 = SingleVal And &HFF
b2 = (SingleVal >> 8) And &HFF
b3 = (SingleVal >> 16) And &HFF
b4 = (SingleVal >> 24) And &HFF
I'm not sure that the >> operator works in the right way on a Single value.
What is the right way to do this?
Thanks to all.
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steve_9496613 wrote: What is the right way to do this?
Don't know if it helps, but there's a <a href="http://msdn.microsoft.com/en-us/library/de8fssa4.aspx">BitConverter</a>[<a href="http://msdn.microsoft.com/en-us/library/de8fssa4.aspx" target="_blank" title="New Window">^</a>] available. There's an example of it's usage on the same page.
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Thank you very much Eddy, it works:
Dim b() As Byte
Dim SingleVal As Single
SingleVal = 0.125
b = BitConverter.GetBytes(SingleVal)
As always your answers are very helpful!
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Thanks
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I think you've fallen foul of Basic's implicit type conversions which sometimes don't help at all. The Single value 0.125 was converted to the integer 0 and it was all downhill from there!
As Eddy's pointed out, BitConverter is the way to go.
Alan.
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Yes, you're right, the value was converted to the integer type.
BitConverter works.
Thank you.
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My C# solution contains several EXE's and one DLL. All of the EXE's hold references to the DLL because they all depend upon the types implemented by the DLL.
Now, even if I make a trivial change to the DLL that does not alter the public interfaces and methods of its types, Visual Studio rebuilds not only the DLL, but also all of the EXE's that depend upon it.
So my question is: Must I redistribute the rebuilt EXE's as well as the rebuilt DLL, even if my changes to the DLL do not alter any public interfaces or methods?
It seems to defeat the purpose of putting widely used types into a common DLL, if I must rebuild and redeploy any EXE's that use the DLL after making strictly internal changes to the DLL.
Thank you for reading my question.
The difficult we do right away...
...the impossible takes slightly longer.
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No - you only need to distribute the DLL, providing there's no strong name associated with it. If it's got a strong name, then versioning may come into play. Please read the links here[^] and here[^].
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I got a requirement of applying method level security for the logged in user.
What they just instructed is:
for every method in the code there will be corresponding binary code ..
and for each permission for this method there will be binary code too..
Now when user log in window application it will be checked if this user has permission to execute this method.
I dont have any idea about this..
can anybody provide good links for it or if someone has ever implemented this sort of thing.. Help me out..
Many Thanks,
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You could use the RoleProvider to determine whether or not the user has the appropriate permission to execute a particular method.
I will say, however, that you should be approaching this from the perspective of what the user sees rather than locking off individual methods. In other words, it's better to prevent the user from being able to see a menu option/click it, than it is to let them click it and then tell them that they didn't have the appropriate permission to execute the method.
As you haven't stated what technology you are using, this is as close as I'm going to be able to give you a full answer without overloading you with details for technologies you aren't interested in.
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Hello,
Im stock at this problem i got an error "The I/O operation has been aborted because of either a thread exit or an application request."
i got an error on this line
mySerialPort.WriteLine("SUCCESS!" & vbCrLf )
and here is my code.
Public Sub CommPortSetup()
If mySerialPort.IsOpen Then
mySerialPort.Close()
End If
Try
With mySerialPort
.PortName = "COM1"
.BaudRate = 115200
.DataBits = 8
.Parity = Parity.None
.StopBits = StopBits.One
.Handshake = Handshake.None
.DtrEnable = True
.RtsEnable = True
.NewLine = vbCrLf
End With
mySerialPort.Open()
MessageBox.Show("Connected to COMMPORT1")
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
mySerialPort.WriteLine("AT+CMGF=1" & vbCrLf)
System.Threading.Thread.Sleep(200)
mySerialPort.WriteLine("AT+CMGS=+6390720831187" & vbCrLf)
System.Threading.Thread.Sleep(200)
mySerialPort.WriteLine("SUCCESS!" & vbCrLf )
System.Threading.Thread.Sleep(200)
End Sub
End Module
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Hi,
I used to encrypt and store my applications (Web Forms – Windows Forms) user password in the database.
I usually during the creation of a new user, I get the user password as a plain text and I create a new hash value then I encrypt the concatenation of the password plain text and the hash value. I store both the encrypted password and the hash value in the database.
During the user login authentication process I get the supplied user password as plain text then I retrieve the stored hash and the encrypted password for that user from the database. I repeat the same encryption again which I used during the new user creation operation but with concatenation of the retrieved hash from the database and the supplied plain text password then I compare both the database retrieved encrypted password with new encrypted password. If they are matching the login validation passes otherwise it fails.
I used to use "FormsAuthentication.HashPasswordForStoringInConfigFile" in the namespace "System.Web.Security" to encrypt the passwords for both of my windows Forms and web forms applications. But now with the .Net framework 4.5 the following method:
"HashPasswordForStoringInConfigFile(Password as string, PasswordFormat as string) as string" is obsolete.
Please anyone have any idea what is the new alternative for this method?
Kind regards.
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samijf wrote: is obsolete.
Try this[^]
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In a .Net app, are the assemblies created during build always put in the Bin folder? I'v never seen them end up elsewhere, but I'm curious if they ever would.
Thanks
If it's not broken, fix it until it is
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The destination for generated files is determined by the project properties and can be modified to your own requirements if necessary.
One of these days I'm going to think of a really clever signature.
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ok, I guess what I meant is, does VS put some files in Bin, and other files elsewhere?
If it's not broken, fix it until it is
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Kevin Marois wrote: does VS put some files in Bin, and other files elsewhere?
Yes. Take a look at the directory structure under your solution directory and you will see the other directories. You can also look through your project properties to see which part of the build uses which directories.
One of these days I'm going to think of a really clever signature.
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