Interfacing With Windows Calculator In Scientific Mode
Aug 29, 2009
Introduction: Probably a year or more ago I asked if was possible to use the Mathematical functions in Windows Calculator or use any DLL file it may use without a satisfactory answer. As I require the greater accuracy of Windows Calculator in String format. Would it be easy to keep switching between a Vb.Net Form windows based application and Windows Calculator and, using SendKeys, get results back to a Vb.Net application using Copy & Paste via the clipboard but to do this in an automatic fashion at all please?
What I am particularly interested in is getting Log10 or LogN results and also doing ARC or INVerse LOG10 or INVerse LogN calculations. But I require the greater accuracy of windows Calculator. Additionally, would it be possible to assign a keyboard keymap to each key in Windows Calculator so that, for example, the L key would be assigned to clicking the LOG10 button, ALT for the Hyp checkbox, SHIFT for the INV checkbox and so on?So imagine sending key sequences to Windows Calculator to completely automate it. And Windows Calculator has been updated too in WINDOWS 7, would that make it any easier to work with?
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Aug 11, 2009
I'm trying to build a scientific calculator with vb .net, except it is vista glass :-p
I basically want the user to be able to enter an equation like SQRT(5 * 6) / (2 ^ 4) and then I want vb to use system.math to solve it. If I write this in my code, vb is able to do it, so how could I do this at runtime.
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Apr 16, 2010
Show me a link to the source of a good scientific calculator example?
I'm using VB express 2008. I've been searching, but I can't find any good ones that work with express 2008!
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Jun 21, 2010
How to code the sqrt, log, sin,cos and tangent buttons please write down the code for the mentioned buttons
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Sep 6, 2011
I have probleam with my code, currently i am create scientific calculator which have function sin, cos & tan. The code i create it not working because every time i convert the function it will show 0 as answer. how to correct my code here.
Public Class Form1
Dim total1, total2 As Double
Dim [Operator] As String
Const conversionFactor As Double = Math.PI / 180
Dim result As Double
total2 = Val(answer.Text)
[CODE]...
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Jun 2, 2009
I am building a scientific calculator.
1. After I clicked the Sine button, I get the result in a textbox.. When the result is there, for example: 1 radians Sine = 0.8414.... I can still put numbers at the end of this result.. like button 5 will be 0.84145, so how can I disable that?
2. After I get the result from a calculation, the textbox should be cleared when I insert a new number.
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Jun 21, 2010
I'm wondering if there is any code that I could use in VB.net so it can determine the computer's startup mode (such as safe mode or safe mode with networking).
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Nov 11, 2010
It's just a small calculator project so it's no big deal, but after I had built the project, I wanted to change the project name and all the file names that had that string in it (and all internal references to that string). I had played with this before and knew that it was asking for trouble but I thought, "What the hell, I'll try it again." feeling a bit brash.
Well, everything works fine in debug mode, but there is this DOS window that pops up just before the main form does, and it doesn't go away for the entire debugging session. I think I see that window pop up on all other projects too (if the main form doesn't cover it up completely), but normally, it's only there for a split second.
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Sep 16, 2010
What is the real mode , protected mode , supervisor mode and the hypervisor mode ?
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Apr 9, 2010
I want to know how to call Windows Built in Calculator in Vb6 on Command Button Click or on Clicking on Menu "Calculator" in Menu bar
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Jun 4, 2011
I am trying to improve the graphics of my application by adding a nicer feel of the glow in it. By default when you enter the button, it has the slight blue glow. What I am trying to aim for on the calculator part of my application is to make it "look" as close as possible to the Windows 7 Calculator.
This is the Windows 7 Calculator normally. This next picture shows the "glow" on mouse enter.I don't know where I should start on this. I'm trying to get the yellow glow that shows on there, I can just make a "image" replacement for the mouse enter property but I want it to be animated like the Windows 7 Calculator.
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May 3, 2012
The problem is as follows: If Windows starts up in Safe Mode, no applications I make with VS 2010 will run. Even if I try to launch them, doubleclicking, running, almost everything I tried, the problem is that the application just doesn't show up. There is no window there, and I don't know (haven't checked) if a process related to the application is running.
[Code]...
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Nov 21, 2005
stop windows from going into sleep mode
stop windows from going into sleep mode
This is part of this thread:
stop windows from going into sleep mode[URL]
This is the reason that the user gave: I have Windows 7, and if I don't keep continuously using my computer, it goes to sleep. Now I have to restart my computer, put in the password and start again.
When you hit the REPORT link you were told that reporting a post is for SPAM, harrasement and other violations of the Bytes guidelines.
It not a way to draw attention to your problem because you are impatient.
Next time you do it I'll just delete the threat for not following the rules after you have been warned.
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Jul 7, 2010
I need to standby the remote computer(windows 7) in given time.
there are Server and clients... From server machine I need to standby(windows 7) the client system given time.
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Aug 1, 2011
I need to produce an error display message when the Windows Mobile PDA is in flight mode. The user will need to pull and push data from a SQL Server server; however when in flight mode this is not doable and a message needs to be displayed. Currently the message that is displayed is:
A request to send information the the computer using IIS has failed. For more results please see HRESULT.
I am programming using VB.Net and I am fairly new to it. I have searched for the past week on the Internet and come across information suggesting that I use TAPI, however I do not know what to import, or where the "flight mode detection" code would go in my application.
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Jun 28, 2010
How does the Windows activator know whether to activate an executable in 32 or 64 bit mode?
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Mar 18, 2010
I have a windows service that I've written in vb.net using vs 2008 targeting ASP.NET 3.5. It appears that it's installing in a running state, but with the start mode set to manual. Is there a way I can have the service be initially stopped? I assume that it would be something in my service installer, but haven't been able to find it.
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Feb 22, 2012
I have a windows form with nothing more than 4 picture boxes on there and a button. How (if even possible) can I show this page in full screen mode but at the same time allow each control on the form to format and resize in proportion.The best analogy I can give to describe what I want is when thinking about PowerPoint. When you create a slide and then press the F5 button to go into slideshow mode, no matter what size monitor or resolution you use, it always fills up the screen appropriately.
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Oct 14, 2011
I would like to find out what the current windows sleep mode setting is i.e. Is it switched on and what is the timer period. My preferences (in order) are:
.NET Managed Code
API
Read Registry Value
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Jan 11, 2012
What does Windows do to an app when it is run in Compatibility Mode?Is there a way I can detect the compatibility mode settings in .NET?
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Jul 27, 2010
We have developed a 'deployment tool' (say program A) which need to modify system registry, etc info which requires admin rights. This program will be triggered by another program (say program B).
Question, when B call A, how can B initiate A with admin rights? is there any command like A.exe /runas admin or any other way to achieve this. Please note that both programs are developed using VB6.
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Mar 16, 2010
I have written a simple VB.NET program that connects to a MS Access Database. This program runs in Windows 7 XP Mode, but does not run properly in straight Windows 7. Somehow, the Windows 7 does not connect properly or read the MS Access database data properly with the DataAdapter.Fill method. I have dual monitors, so I can run the identical program side by side (one in Windows 7 and the other in XP Mode) - one works and the other doesn't (it doesn't crash, it just get "nothing" from the database when accessing - acts like it's not connected). Has anyone else run into this, or similar, problem with VB.NET and MS Access connectivity?
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Nov 4, 2010
I've been whining for several months about the way Windows 7 prevents application exceptions from actually occurring, and arbitrarily assigns "compatibility settings" without actually detailing what those settings are, even during Visual Studio Debugging operations. Am I just completely ignorant to some setting I can toggle to turn all that garbage off and make Win7 act like an operating system that wasn't designed for a 2 year old? It never hurts to try. In a worst case scenario,
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Nov 9, 2010
I want to know: How can Windows 7 enter to user mode and initialize hardware and all other things without any kernel but with a boot loader only?
Download Genius Web Explorer , It's free.
Download Genius Desktop Clock , It's free.
Download Genius Wallpaper Changer , It's free.
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Mar 23, 2011
I have a small windows app in vb.net, which reads the file header from the database of table header,I need help to allow it to compare the header of any given file to be read using BinaryReader and then compare the value with the table containing the header's of all filetype's now, i am stuck as how do i create the link between the table to be compared against the selected file. i have two tables currently username, and password only which is for validation?
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Jul 25, 2011
I'm trying to interface .NET (C# or VB doesn't matter) with a Siemens PLC S7 200. I can't however get a connection set up. I'm working on a Win7 64bit machine but can't seem to get it working on 32bit either. I got two files:
Interop.OPCSiemensDAAutomation.dll
Siemens_s7-200.dll
From another project which I'm trying to migrate to a newer system. However I get a com exception all the time.
Retrieving the COM class factory for component with CLSID {01704EBD- 4B5-11D3-9C09-00105A3DD3AC} failed due to the following error: 80040154.
I've already tried libnodave and can't seem to get that working either.
I couldn't get Siemens PC-Access to install on this machine, will try on a WinXP 32bit later. I read something about I need an OPC server or something on the machine?
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Apr 8, 2011
I have a 64-bit project(which has to be 64-bit as it is an Outlook 2010/64 bit addin) that needs to interface with another Dll of mine, whose job it is to scrape file metadata out of files using the windows Shell32 dll. Now, as you may of guessed, this is posing compatibility problems as I am crossing that 64/32 bit boundary.
I read an article (ok skimmed it, whatever) and from what I understand, it suggested that I use COM as an intermediary and to bridge this gap. So, My question is, can I build a shim DLL in say VB6 (i know, i know) that would act as my com reference and pass the calls on to my 32-bit dll from my 64-bit addin?
Do I create a VB6 COM Dll, reference my .NET assembly and pass all Public functions out via a similar interface, then reference the VB6 dll in my 64-bit addin? is it just that easy?
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Apr 7, 2011
I am working on a project I need to connect a USB camera but there is no com port No. on Device Manager the problem i know how to use camera on a serial port but USB ....i don't?
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Oct 14, 2010
i am using visual studio 2005 on win 7 with office 2007. i have developed win application. i am using microsoft activex spreadsheet component in my program. so it automatically creates reference to AxInterop.OWC11.dll When i run program in debug mode (open program and click RUN in toolbar it works) but if i run directly .exe (go to bin elease doubleclick .exe) it give error at loading point of that component. It says "Attempted to read or write protected memory. This is often an indication that other memory has been corrupted." An unhandled exception occurrs.
[Code]...
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Jan 21, 2009
I am trying to interface with a Sylvac Gage over the Serial Port, but I can not get read any information sent by the gage.I am using the IO.Ports.SerialPort Object (called serialPort), and I can successfully write to the device. I can tell it to turn off by: serialPort.Write("off" & vbCrLf)But I can't seem to get any information back from the Gauge when I ask it to send information serialPort.Write("?" & vbCrLf)
[Code]...
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