Visual Basic

Read and Write Binary values to registry

13-Jul-05 4:43

Read this[^]. It's alittle bit on the VB6 to .NET upgrade, but it also shows you how to pass data between forms.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

andyr200513-Jul-05 4:36

13-Jul-05 4:36

I am currently trying to read binary values from the windows registry, with the requirement to compare and set a specific option in my program. I have tried using the following: Imports Microsoft.Win32, but have so far failed to read or write binary to the registry. If any one has code or knows how this is possible, your help would be much appreciated.

Dave Kreskowiak13-Jul-05 4:41

13-Jul-05 4:41

Got a sample of the code your using? Also, what's the registry data type you're trying to read and under what key?

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

andyr200513-Jul-05 6:10

13-Jul-05 6:10

k, at the moment i dont have sample code to read and write binary, thats what i need. However this is the key im trying to use

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{3A293CEE-EFF6-475C-9F1F-730951135E97}\0000

This stores entries for the settings for the NVIDI Gfx settings which im making a tweak tool for, and cant read most of the values as they are binary.

Any help would be appreciated. I can get this working in VB6, but however would rather use .NET as I am able to add Navigation bars and office style buttons.

Dave Kreskowiak13-Jul-05 8:57

13-Jul-05 8:57

First, yoiu should be opening CurrentControlSet, not ControlSet001.

Dim rk As RegistryKey
rk = Registry.LocalMachine.OpenSubKey("SYSTEM\CurrentControlSet\Control\Video\{yada yada yada}\000")
Dim data as Byte() = rk.GetValue("ValueName")

Will return whatever the data for ValueName is in the registry. If you have to return the default value (unnamed) for a key, just use:

Dim data as Byte() = rk.GetValue("")

I think you can figure out how to write the data back.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

andyr200523-Jul-05 8:30

23-Jul-05 8:30

Thanks for the reply Dave Kreskowiak, however, this does not work.

What I need to do is read a value from the registry, which may be:

01 00 00 10, then I need that to go to a variable, which I then need to check and change a picturebox.image and listbox.selectedindex, depending on what the value is. Also need to write a specific binary value back to the registry, if the user changes the setting.

The above method just won't work and I'm unsure why.

Dave Kreskowiak23-Jul-05 10:48

23-Jul-05 10:48

I have no idea what your doing wrong because "just doesn't work" doesn't explain what's going on. Does it return Nothing when you call OpenSubKey? If so, then you have the registry path wrong.

This works perfectly on mine:

Dim rk As RegistryKey
rk = Registry.LocalMachine.OpenSubKey("SYSTEM\CurrentControlSet\Control\Video\{3BAC59C8-BD30-404A-9093-F454D23FF17F}\0000")
Dim data As Byte() = rk.GetValue("_Wow.exe:D3DOGL_67207556")

It returns the 4 byte value array of 0x01 0x00 0x00 0x08.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

andyr200524-Jul-05 6:55

24-Jul-05 6:55

Hmm, i'll try with the example of what you did above, can the byte array be output to a label or was it to console.

Dave Kreskowiak25-Jul-05 0:31

25-Jul-05 0:31

So long as you provide the code to do either, yes.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

andyr200525-Jul-05 6:06

25-Jul-05 6:06

Is it possible for you to email me the form or a small project showing how to do this, or paste the code here. My email is supernorman1@hotmail.com

Thanks for all your help so far

Dave Kreskowiak25-Jul-05 11:22

Close a modal form on mouseclick outside ....

25-Jul-05 11:22

Dim rk As RegistryKey
rk = Registry.LocalMachine.OpenSubKey("SYSTEM\CurrentControlSet\Control\Video\{3BAC59C8-BD30-404A-9093-F454D23FF17F}\0000")
Dim data As Byte() = rk.GetValue("_Wow.exe:D3DOGL_67207556")
Dim i As Integer

For i = 0 to data.GetUpperBound(0)
    TextBox1.Append(String.Format("Value at index {0}: {1}" & Environment.NewLine, i, data(i))
Next

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

MaWeRic13-Jul-05 2:50

MaWeRic

13-Jul-05 2:50

... is this possible?

I have a form with a calendar wich a show as modal ... I want to be able to close that form when I click outside ... is this possible?

Is it possible to simulate this behaviour when using a NoModal form?

//Maw

Fu Manchu13-Jul-05 3:10

Fu Manchu

13-Jul-05 3:10

you could try an event like

Private Sub Form1_MouseLeave(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.MouseLeave

me.close

End Sub

or

Onmouse leave turn modal off then when lostfocus close the form.

have a go with that?

Does my head look big in this!!!!

Anonymous13-Jul-05 4:10

Anonymous

13-Jul-05 4:10

Doesn't this defeat the purpose of having a modal form in the first place!?! Dead | X|

Just place a close button on your modal form!

Dave Kreskowiak13-Jul-05 4:40

13-Jul-05 4:40

First off, that defats the purpose of a modal form.

Second, it goes against the normal UI practices followed for Windows. This isn't an intuitive action the users are going to be used to when using Windows.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

MaWeRic14-Jul-05 4:18

MaWeRic

14-Jul-05 4:18

Welll ....
This is the case ..
I have a textbox and when I hit right-button over it i want to show a calendar. The user must select a date or move outside calendar to close form with calendar. It should work as a normal DatePick-control. On that control, as you know, you can either select or click outside to close calendar. I want to change click to mouseleave-function on my control.

The txtbox is a usercontrol .... I have a form in that usercontrol wich shows the calendar at a position I choose.

Sooo? what do you think?

//Maw

Dave Kreskowiak14-Jul-05 4:33

Philosophy: UserControl to UserControl

14-Jul-05 4:33

MaWeRic wrote:
as you know, you can either select or click outside to close calendar. I want to change click to mouseleave-function on my control.

If someone who isn't that good with a mouse uses your control, they're going to get very frustrated because your closing a control that they are having problems keeping a mouse pointer in. Changing this behavior is not recommended. I am one of those people who likes to move a mouse pointer out of the way so I can see an entire control before I click on something.

Microsoft published Official Guidelines for User Interface Developers and Designers[^] for a reason...

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Sled Dog13-Jul-05 2:43

Sled Dog

13-Jul-05 2:43

Anyone Interested...

Is there a specific methodology or "best practice" for having 2 of your user controls on a single web page communicate information. For example, I have Control A which has printing press information on it and Control B which has press materials information on it. I suppose I could expose many of the press properties Public Shared, however, I don't feel that this is elegant as object oriented programming goes. Unsure | :~

Would any one care to suggest some ideas that work for your development practices?

Thank you.

William

Attachment in outlook express

Rizwan Bashir13-Jul-05 2:22

Rizwan Bashir

13-Jul-05 2:22

I am using vb.Net 2003. the problem is

I want to open a compose mail page of outlook /outlook express with an attachment of image file. upto now I am succeeded in opening mail with every information like To, From, Bcc,CC, subject, Body.. but Attachment is a problem can any one help me out how to do this ?? the code is

Dim mailMess As String = "mailto:abc@xyz.com"
mailMess = mailMess & "?Subject=Mail from Rizwan"
mailMess = mailMess & "&Body=This is the sample text"
mailMess = mailMess & "&attachment=C:\Connection.txt"
System.Diagnostics.Process.Start(mailMess)

this opens fine but attachment never comes... I tried the word Attach as well but no result..

note: I have implemented this with outlook reference library. but dont want to use that as I had problem when client is using any other version of outlook ...

any solution will be highly appreciated..

Re: Attachment in outlook express

Dave Kreskowiak13-Jul-05 2:35