Visual Basic

Christian Graus11-Apr-07 2:03

11-Apr-07 2:03

It must be the night of the stupid headers. How does 'help me urgent' not reflect every question asked here ?

The split method of the string class can turn your string into an array of two strings, ASD and XYZ.

dim s as string() = str.split(" ")

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Krish - KP11-Apr-07 2:06

Krish - KP

11-Apr-07 2:06

left("ASD XYZ", instr(1, "ASD XYZ", " ") - 1)

Regards
KP

Christian Graus11-Apr-07 13:38

11-Apr-07 13:38

If this was a VB.NET question, you shouldn't use the VB6 stuff, you should use the stuff that's in .NET. This is a lot more ugly than using split.

Krish - KP11-Apr-07 2:10

Krish - KP

11-Apr-07 2:10

left("ASD XYZ", instr(1, "ASD XYZ", " ") - 1)

Regards
KP

Help Me

pampam11011-Apr-07 0:34

pampam110

11-Apr-07 0:34

How Can i Start VB.NET ???

[]D @ []v[] []D @ []v[]

Colin Angus Mackay11-Apr-07 1:01

Colin Angus Mackay

11-Apr-07 1:01

Upcoming events:
* Edinburgh: Web Security Conference Day for Windows Developers (12th April)
* Glasgow: Introduction to AJAX (2nd May), SQL Server, Mock Objects

Never write for other people. Write for yourself, because you have a passion for it. -- Marc Clifton

My website

Zaegra11-Apr-07 1:34

11-Apr-07 1:34

Try using Start --> All Programs --> Visual Studio.NET 2003 --> Microsoft Visual Studio.NET 2003 or if you have a different version it might go slightly different, but try doing something first before asking. Might solve a lot.

--Zaegra--

Christian Graus11-Apr-07 2:05

11-Apr-07 2:05

Buy a book and work through it before asking questions like this one. There's no way anyone can answer you in a meaningful way, as you'll have seen from the responses you've got.

How can I play an embeded resource wav file?

Dave Kreskowiak11-Apr-07 5:05

Dave Kreskowiak

11-Apr-07 5:05

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

JUNEYT11-Apr-07 0:19

JUNEYT

11-Apr-07 0:19

Hi!

I have an embeded resource as wav file (hello.wav) and I would like to play it with my.computer.Audio.Play(). How can I do that? WTF | :WTF:

Thanks

What a curious mind needs to discover knowledge is noting else than a pin-hole.

Re: How can I play an embeded resource wav file?

Dave Kreskowiak11-Apr-07 5:04

Dave Kreskowiak

11-Apr-07 5:04

A little Google goes a long way... Results[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

vb.net

rajigopalan10-Apr-07 23:08

rajigopalan

10-Apr-07 23:08

i want the combo box that accepts only capital letters.

Re: vb.net

Christian Graus10-Apr-07 23:10

Comparing images using the GetPixel Method (2)

10-Apr-07 23:10

I'm sure you do. How does VB.NET reflect this, and give people any idea of what you're asking ? Imagine if everyone typed the name of the forum into the header, how hard the forum would be to read.

You can handle the keypress event and either replace the character typed with a capital, or reject it if it isn't a capital.

Re: vb.net

amaneet11-Apr-07 0:12

amaneet

11-Apr-07 0:12

Try the following code on the keypress event
If (e.KeyChar = "A") Then
e.handled=true
else
e.handled=false
End If
hope this may help u.

Zaegra10-Apr-07 23:01

10-Apr-07 23:01

Hello,
I have 2 images, both loaded into pictureboxes. Now, i want to compare them using the GetPixel method (i know i al typed this before Big Grin | :-D

)
I tried the following: (the images have the same size)
but it does not work

Dim btm1 as new bitmap(picturebox1.image)
Dim btm2 as new bitmap(picturebox2.image)
dim i as integer
dim j as integer

for i = 1 to btm1.width
for j = 1 to btm1.height
Dim pixg1 as color
Dim pixg2 as color
pixg1 = btm1.getpixel(i,j)
pixg2 = btm2.getpixel(i,j)
If NOT pixg1 = pixg2 Then
...
End If
next j
next i

Can someone please give me the code to compare 2 images loaded into picturebox by going over each pixel using the GetPixel method it is kind of urgent Big Grin | :-D

Thanks in advance,

--Zaegra--

Christian Graus10-Apr-07 23:09

10-Apr-07 23:09

Zaegra wrote:
know i al typed this before

Yes, over and over. Why not reply to my response ?

Zaegra wrote:
Dim btm1 as new bitmap(picturebox1.image)
Dim btm2 as new bitmap(picturebox2.image)

Wow, that's not convoluted. Why can't it be the same image, instead of a copy ?

Zaegra wrote:
for i = 1 to btm1.width
for j = 1 to btm1.height

They are 0 indexed, and should end at height-1 and width-1 or they will throw an exception. They should also be called x and y for readability.

FWIW, this is also going to be very slow. VB.NET cannot do it faster, but C# can. How big are these images and how often do you need to do this ?

Zaegra11-Apr-07 1:17

11-Apr-07 1:17

well the images are screenshots so the size depends on the resolution of the screen, but their minimum size will be 800x600 and the maximum size 1280x1024. (I am trying to make a program which automatically saves screenshots in an imagelist when the PrintScreen button is pressed but since my program does not respond at key presses if it is not activated i will need a timer which will compare the images and if they don't match, add the screenshot to the imagelist.) Can you help me out please? if you have a different solution, always welcome! (Btw, thanks for helping) Big Grin | :-D

--Zaegra--

Christian Graus11-Apr-07 2:02

11-Apr-07 2:02

OK, by the time your comparison code ends, the screen will have changed.

Read my C# image processing articles for how to access the bits of a bitmap directly. From thre, writing code to compare two bitmaps is trival, and it will be heaps faster. Just write a C# dll that you call from VB.NET.

Zaegra11-Apr-07 2:15

11-Apr-07 2:15

Sorry, i don't use C#, is there no simple way in VB.NET to compare images and: Is there a way to let a window always be on top even in a game which runs in full-screen mode? Because that will solve the problem too.

--Zaegra--

Colin Angus Mackay11-Apr-07 3:02

Colin Angus Mackay

11-Apr-07 3:02

Zaegra wrote:
Sorry, i don't use C#, is there no simple way in VB.NET to compare images

From what I understand, Christian was saying you don't have to use C#. The code to do the comparison happens to be in C#. You can call this from your VB.NET project.

Also, it is a bit finalistic to say "I don't use C#". On a day-to-day basis I don't use VB.NET, but since there are over 45000 similarities between VB.NET and C# and only a few dozen differences it is easy to pick up one if you know the other.

Dave Kreskowiak11-Apr-07 5:02

Dave Kreskowiak

11-Apr-07 5:02

Zaegra wrote:
is there no simple way in VB.NET to compare images

No, there isn't anything in the .NET Framework pre-written for you to do this.

The code to compare two images has to be written in C# is you want the speed. The reason for this is because C# supports pointers in unsafe code blocks while VB.NET doesn't support pointer at all. You can write the library to do image comparisons in C#, then use the resulting .DLL in your VB.NET project.

Zaegra wrote:
Is there a way to let a window always be on top even in a game which runs in full-screen mode?

If the game uses DirectX, no there isn't. The game isn't rendered in the same frame buffer as the Windows Desktop. Your window WILL be on top of all other windows, but will still not be visible at all under the DirectX render window, if running in full-screen.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Christian Graus11-Apr-07 10:53