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Dear Ladies|Gentlemen:
I developed a visual basic program in VB4
on Win3.11 (16 bit)incorporating an API
call to produce a 'siren' effect.
The executible worked fine in the 16 bit
environment but upon running it under
Win98 and Win98se the 'siren' effect
doesn't work! There are no 'run time'
errors... just no 'siren'!
The API is defined in 'general declarations':
Option Explicit
'api for sound.drv (called by subroutine 'racket')
'resides in module.bas
Declare Function opensound% Lib "sound.drv" ()
Declare Function setvoicesound% Lib "sound.drv" (ByVal nsource%, ByVal freq&, ByVal nduration%)
Declare Function startsound% Lib "sound.drv" ()
Declare Function closesound% Lib "sound.drv" ()
Declare Function waitsoundstate% Lib "sound.drv" (ByVal state%)
'The 'siren', named 'racket' is conditionally called from a subroutine:
Public Sub racket()
Dim t, n2, n3
Dim frequency As Long
Dim duration As Integer
t = opensound() 'start freq
again: 'label to repeat for siren effect
'n3 = frequency; here set in a for-next loop
'n2 = duration in 1/10th sec; + _
set here; now = to .3 sec
n2 = 8 'duration;
duration = n2
For n3 = 500 To 1200 Step 50 'freq in a for next loop
frequency = n3 * 65536
t = setvoicesound(1, frequency, duration)
t = startsound()
While (waitsoundstate(0) <> 0): Wend
't = closesound() stops frequency
DoEvents
Next n3
GoTo again
End Sub
How do I make this API work in windows 98 and 98se?
Thank you, Ralph
Thank you, Pedagogy
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You could replace all the above declarations with one to the Beep API.
<a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/base/beep.asp">http:
Don't know if it is going to produce the exact same results, but the parameters you are using are the same as Beep.
RageInTheMachine9532
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how can I write uninstaller by vb.net that will unistall my installed program.
tbhattacharjee
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You can uninstall an .MSI (Windows Installer) installed application just by launching the .MSI file with the /x switch:
msiexec /x full_path_to_filename.MSI
RageInTheMachine9532
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I want that when some on will run setup then setup will ask for serial no before installing software
tbhattacharjee
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how can I create a setup.exe in .net that when application will be installed then a presentation of my software will be shown.please guide me in detail.
tbhattacharjee
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I browse the site www.only4gurus.com then I found that they change the look & feel of the scrollbar of internet explorer, so I want to know how can I develop a that kind of site where design of the scrollbar will be defined by me.
tbhattacharjee
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You can use the CSS Styles:
<html>
<head>
<style type="text/css">
<!--
body {scrollbar-3dlight-color:gold;
scrollbar-arrow-color:yellow;
scrollbar-base-color:tomato;
scrollbar-darkshadow-color:orange;
scrollbar-face-color:teal;
scrollbar-highlight-color:hotpink;
scrollbar-shadow-color:magenta}
-->
</style>
</head>
I think... It's been a while since I've done something like that..
Despite the high cost of living, it remains popular.
Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life.
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 You will need to use styles via stylesheets or use inline styles within your webpage.
Check out the following link, this should help...
http://msdn.microsoft.com/workshop/samples/author/dhtml/refs/scrollbarColor.htm
Cheers
Colin
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I did not have internet transfer control. So I downloaded it and resgistered it using regsvr32. But its giving me Licence error.
Any solution ??
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when i'm using inheritance... how can i call the base class constructor from the derived class...
in C# i can call it by using
:base(...,...)
what's the equivalent syntax in VB.NET...
thax in advance
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Use the MyBase keyword - the base constructor will be the New sub:
Class MyClass
Inherits SomeOtherClass
Sub New()
MyBase.New()
...
End Sub
End Class
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I need help in displaying personnel photos stored in a SQL 2000 table either in a field with datatype image or a field with datatype nvarchar which has the path to the photo. Which is better to use?
I have a vb6 project with a Picture box, but when I set the DataField property to the field name, the photo does not display. I have a DataGrid that lists each personnel name, so I want to be able to select a record and the person's picture displays in the Picture box. The DataGrid's DataSource property is set to an ADODC data control.
I can do this easily with the table being in Access using the OLE control and setting the DataField property to the field name in the Access table. But the user wants to move the tables to SQL 2000 and wants to update the VB6 project to use ADODC data controls instead of the intrinsic data control.
Any help would be greatly appreciated.
And I thought this would be an easy task. 
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Need some help. Can someone advise how I can transpose columns and rows - with datagrid from a database. Or is there a different approach. I'm trying to develop a Corporate Finance module which requires financial statements to be presented as columns even though the information is stored as rows in Access.
Some background: I used to be an excellent Pascal programmer, after 10 years of programming I left IT in 1992. I bought Visual Basic .NET about 2 weeks ago - it is a culture shock even though I have picked up VB 6.0 and Access.
Vision is everything
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In vb.net I found installer class so I want to know what is the utility of installer class and how cani use it and also please tell me from where I could know about installer class in detail.
tbhattacharjee
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They're there for a reason, you know. 
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In Visual basic there is api viewer which provide functions and constant etc which can be called from vb but in vb.net I could not find utility like api viewer so that is why how could I know which api functions can be called from vb.net and from where I could know
Which api functions can be called from vb.net .please tell me.
tbhattacharjee
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Pretty much all the API calls can be called from VB.NET - but because the framework provides about 90% of the functionality of the API it is prefereable to look therein first.
Do a search in the help on <DLLImport()> attribute and look at the System.Interop namespace
'--8<------------------------
Ex Datis:
Duncan Jones
<a href="http://www.merrioncomputing.com">Merrion Computing Ltd</a>
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a) I have some question about .Net Data Grid Control like how could I assign ‘n’ of empty rows to datagrid when I will click on a button.
b) How could I get Row and Column position when I will click on a specific cell?
c) How could I get the value when I will click on a specific cell?
d) How could I assign value to a specific cell when I will click on button?
e) How could I get Cell top, Cell left, Cell width, Cell height when I will click on a specific cell?
f) How could I assign 0 to a specific column width?
All the properties are available for flexgrid. So please tell me answers of all my question of .Net Data Grid and also provide sample class.
tbhattacharjee
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I often use FlexGrid in Visual Basic to take multiple input from user.let me give you a example say suppose at the time of form load form will have 100 rows and two column
When I will click on any cell of first column then on that column textbox will appear
And When I will click on any cell of second column then on that column combo box will appear in this way I will take multiple input from user and save those input in table.
In vb.net I tried to work with FlexGrid which is com control all the property of FlexGrid
Is working well but when I try to design same thing which works fine in vb but I got problem in vb.net. Let me tell you what I designed in vb.net. In vb.net project I have one form and I took FlexGrid which is com control and a textbox and a combo box which is
.net control and I apply the same logic which work very well .the logic is when I will click on any cell of the first column of FlexGrid then text box will appear in that cell and when I will click on any cell of the second column of FlexGrid then combo box will appear in that cell. In vb.net textbox and combo box moving perfectly but does not appear on any cell of FlexGrid that is my problem. If any body can solve the problem then please let me know every thing in detail step by step and sample code also I will be highly obliged. My doubt is in my vb.net project .I have taken a FlexGrid com control and other two textbox and combo box is .Net control it could be reason that why textbox and combo box is moving to the right place but does not appear on cell of FlexGrid. Please help me some one to achieve my output.
tbhattacharjee
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I can't use API Function SearchPath in VB.Net. Help me.
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I'm writing a console app that when the user types in a number it gets stored into an arraylist. When they type in certain commands it does misc. things, therefore the input is set to string. However if they type an invalid string that is not one of the preset commands or an integer I want to give them an error message. The issue I'm running into is checking wether the string is an integer or not. If someone can point me into the right direction I would appreciate it.
Thanks in advance. :>
To see one's self from another's point of view is an opportunity not to be passed up.
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