Visual Basic

21-Feb-09 23:39

Hello,

I have a project in VB .net 2008.

I have the following strange problem.

The application is use a Touch screen so there is no mouse or keyboard on the PC connected.

When a button is pressed there is another form that comes up.

first i disable the start form, after doeing that i show the new form on top of the main form.
On the new form there are also buttons ,.....

Sometimes i have the problem that when the Second form is there the users are touching something and the main form comes on top of the second form. The problem there is that the main form is disabled so there the user can do nothing but the form where the user need to use is behinf the main form.
I dont know how it can happens when i first disable the main from.

Like mentioned before there is no mouse or keyboard installed so switching with CTRL-TAB is not possible.

Is there anyone that can help me with this problem.

Using VB .net 2008 on a Vista pro machine.

thanks

DCA

ABitSmart22-Feb-09 0:04

ABitSmart

22-Feb-09 0:04

Why are you disabling the ENTIRE form ??

Why don't you Hide the main form ?(which I think you are trying to do by placing the second form just over it).
Or, disable the controls on the main form instead of the whole form.

The user can move the second form or minimize it, to find the disabled main form stuck on the screen!!

DCAUB22-Feb-09 1:31

22-Feb-09 1:31

I have checked it out. i have disabled the functions so the form can not be minimized , moved,... this because of the users are not PC minded.

I think i have found my mistake.

I am opening a new form, when this forms is loaded, in the form_load sub there i have set that i set mainform.enabled=false

Maybe is there the problem the small time difference.

Thanks

DCA

Luc Pattyn22-Feb-09 2:39

Luc Pattyn

22-Feb-09 2:39

Hi,

disable means the controls will no longer react to user input; a disabled form can still be minimized,
brought to the front, etc by some code.

if you don't want to see a form no matter what, then call Hide (or set Visible=false, that is the same).

Smile | :)

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Dave Kreskowiak22-Feb-09 3:54

How to make a visualizer for a media player

22-Feb-09 3:54

You shouldn't be touching the main form from your child form at all.

Also, how are you displaying this child form? Are you using Show or ShowDialog?? It sounds like you should be using ShowDialog since this will prevent any interaction with the rest of the application forms until you close this child form.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

TheMrProgrammer21-Feb-09 23:33

TheMrProgrammer

21-Feb-09 23:33

Hi everyone
My name is Sahil
I live in India
I am a real newbie in programming (actually I am in High School currently)

I just wondered if anyone of you brilliant programmers out there can help me to
write a visualizer like the one in WinAmp or in KMPlayer

I have use the wmp.dll to make my player

This is the download link

http://rapidshare.com/files/177505938/28-12-2008_The-mp3-Man_setup.exe[^]

I have not given the code as this the basic thing Laugh | :laugh:

Well it has got some plus points also:

It supports multiple playlists,currently 10 which I think is more than sufficient
It sticks to left and top of screen if kept too close
It supports themes that can be created by the user also
It encorporates a well defined and large library to store all your songs
The playlists have colour changing algorithm

Also can you just give me suggestions about what to add more to it

Thank You in advance Smile | :)

TheMrProgrammer

Dave Kreskowiak22-Feb-09 4:03

22-Feb-09 4:03

In order to make a visualizer (plugin), you need the Windows Media Player 10 or 11 SDK, the docs for which can be found here[^].

The WMP 10 SDK can be downloaded from here[^]. The WMP11 SDK comes as part of the Windows SDK for Vista, which is HUGE and can be picked up from here[^].

Warning! This SDK is meant for use with Visual C++. You will not find any examples written in VB.NET. This is NOT a beginners project. If you don't have knowledge of how Component Object Model, or COM, works, you will not be able to create a visualizer at all.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

TheMrProgrammer23-Feb-09 21:12

TheMrProgrammer

23-Feb-09 21:12

hi Dave
thanks Smile | :)

I got just on little doubt. Confused | :confused:

if I use this SDK, will the exe file work on computers not having the sdk
can you tell me? please ...

TheMrProgrammer

Dave Kreskowiak24-Feb-09 1:48

24-Feb-09 1:48

Yes. The SDK is for developing the software, not running it.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

TheMrProgrammer25-Feb-09 1:01

TheMrProgrammer

25-Feb-09 1:01

hi dave
using the sdk i figured out that what i need is IWMPEffects interface
It has a frequency_index property but its under a header file
any ideas how to use it in vb

TheMrProgrammer

Dave Kreskowiak25-Feb-09 2:05

Attach extra dll when publishing a project

25-Feb-09 2:05

It's an interface you have to implement in your code. This is not a function you call, but an interface that you are expected to flesh out so WMP can call YOU.

TheMrProgrammer wrote:
any ideas how to use it in vb

I have some ideas, but they involve HEAVY knowledge of COM interop. Something that I can't really explain in a forum. There's also a reason why I said you probably won't find any examples in VB doing this. It is far from easy to do.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

DCAUB21-Feb-09 23:33

21-Feb-09 23:33

Hello,

I have 2 questions about publishing a project.

1.I am using software from the manufactor if the POS printer in my own programm. When i install the published application on a PC there is one dll file of the software from the POS printer that is not included in the install file. Without this dll the printer is not responding and the programm is given errors.
when i manualy copy the missing dll file to the directory where the application is installed my programm is working without any problems.
Is there a way to attach the missing dll in the publish file so when the application is installed the dll is automaticly also there.

2.My second problem is also something with the publish of a project. When i have published my project and installed to a PC , the project is default installed in a directory that is not find in programm files.It is located somewhere far away from the root directory \locallow\.......
Is there a easy way so i can set that the installation must be under c:\program files\name of software

Thanks

best regards

DCA

Dave Kreskowiak22-Feb-09 3:51

22-Feb-09 3:51

DCAUB wrote:
1.I am using software from the manufactor if the POS printer in my own programm. When i install the published application on a PC there is one dll file of the software from the POS printer that is not included in the install file. Without this dll the printer is not responding and the programm is given errors.
when i manualy copy the missing dll file to the directory where the application is installed my programm is working without any problems.
Is there a way to attach the missing dll in the publish file so when the application is installed the dll is automaticly also there.

Adding the file is easy. Just open the Setup project you've added to your solution, click on the Application Folder on the left, then just drag the .DLL file into the right side panel and drop it.

DCAUB wrote:
2.My second problem is also something with the publish of a project. When i have published my project and installed to a PC , the project is default installed in a directory that is not find in programm files.It is located somewhere far away from the root directory \locallow\.......
Is there a easy way so i can set that the installation must be under c:\program files\name of software

If you're using ClickOnce deployment, no, you can't pick the installation folder.

If you're using a normal Setup project, you click on the Application Folder on the left, then look in the Properties window. You'll find the DefaultLocation property there.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

DCAUB22-Feb-09 4:10

22-Feb-09 4:10

Can you please give me a small explaination how i can make a setup of a working project ?

Do i need to add something to my existing program ?

thx

DCA

Dave Kreskowiak22-Feb-09 5:11

22-Feb-09 5:11

If you have an Express edition of Visual Studio, you don't have this option.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

DCAUB22-Feb-09 5:14