I am using the code from this site[url]...
to detect the music note (C-D-E-F-G-A-B) that was pressed in the piano keyboard.
Now, I want detect the "key velocity", or in other words, how hard or soft a key was pressed.
I am developing a software for musical trainning. By now, the user can only use the keyboard of PC. I want use also a music keyboard/digital piano.There is a code that get information of what key was pressed? For example: the user press the B note (not the letter B), and the software recognize this. Remember: I am not talking about PC keyboard, I am talking about music keyboard.
View 3 RepliesI made a musical software. Its only to my personal use. And I have a digital piano (model: Cassio Privia PX-800), with USB conection. I need to know how my software can detect my digital piano and how to detect what key note was pressed. I tried this sample code: [URL](at the end of the page there are a icon to download the project) but no success.
View 1 Replieshow can i detect pressed keyboard keys while the focus is not on my running win form or any of its controls ?
View 1 RepliesWhy is it that this VB.Net code only works for detecting flash disks? [code] What would be the possible way to detect the insertion and removal of other USB Peripherals such as mouse and keyboard?
View 1 Replieshow to create this certain program. In short, I must calculate the velocity of a ball thrown in the air after 1, 2, and 3 seconds. The formula for this is: -16t^2 +velocity(t)+height. the height for the ball is 5 feet per-second. So after defining each textbox of 1 sec, 2 sec, and 3 secs (Dim stuff) I need the button click to run through the formula then display the result for each second. How would I do this?
View 6 Repliesi am trying to make a virtual piano.in that i am also playing music files which is recorded through the above said piano.but how can i understand when this music playback ends.i need to invoke another function when the plyback ends.so how can i understand when the playback end.
View 1 Replies[Code].......
I have problem to play the piano swf inside the TabControl1 (WebBrowserA), but i can play piano swf within the main form (WebBrowserB). Anyone know why, and the method to solve it to play at tabcontrol1
how can i make a piano type app, so when you press a button, it plays a file, if this can be achieved ill need help scripting itI like.....
Understandable Answers
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This code works to output a piano tone for 2 seconds using winmm.dll via platform invocation services, it seems to work fine on XP but waveoutopen fails in windows 7 rc updated based on feedback from John Knoeller
[Code]...
I'm trying to create a virtual piano using pictureboxes to represent keys that play .wav file versions of notes. I've gotten this to work fine; however, I'm having trouble with two features I want to implement.The first feature is to be able to save what I play in a text file. I thought I could use this code but I'm getting an error. [code] The second feature is to play random keys using the random class. Is there any way I could store the pictureboxes in an array and then use the random class?
View 3 RepliesI have created a virtual keyboard like the "Windows onscreen keyboard". So, I have used the method sendkeys.But if I click on the button, it doesn't write nothing.
I think I have a problem with the FOCUS.As you can see, the "Windows onscreen keyboard" is always on top.This doesn't happen to my form. How can I do?
How to access Digital I/O using USB using C or C++ or Vb.net Or C#.net?
View 4 RepliesI developed an application by vb.net 2005 on SQL server 2008.I would like to enter some of my data such as my drawing and my handwriting in my application by a digital pen.
View 2 RepliesHow can I have a simple digital clock in my application? I need it to be a label control - thats the tricky part.
Basically it just reads '5:33 PM' or '5:33 AM' etc - not 24hr time.
How can I take pictures using a digital camera based on a button click in WinForm application? I tried googling, and got WIA. Used WIA 2.0 and wiaut.dll, and it is working fine for webcams. But I am not able to automate the actions of my Sony W220 camera. I tried googling for WPD, but it appears to be active only in Windows 7 and Vista, and I am using XP Sp2
View 8 RepliesI need some advises on showing digital signal indicator at this moment I use radio button...but it's then becoming complicated because I have to make them "true" or "false" anytime.
View 24 Repliesmy final year project title is monitoring weight changes in digital scale / indicator.i bought one digital scale online from A&D in order to test out my system.however unlikely other device (GSM MODEM, RFID...) there are no drivers or libraries (DLL) from this device.. with only the digital scale and (rs232 9-pins to usb convertor i bought) i was like lost wondering how to get communicate with the device.i have been search around in the internet for similar post.. but there are most likely dealing with the data receiving already. is there any journals or manuals for references? i willing to study over this and not simply ask for full codings.
- how to communicate with the device (serial port communication)
- is there any driver / libraries need to install bfore everything?
OS using - windows 7 ultimate (laptop)model of device - A&D JM-SERIES 150lb
I want to take picture directly on my employee database form. I means, how to control digital camera from Visual Basic form? how to take picture through VB Command button.
View 3 RepliesI'm looking for guidence on using digital certificates to manage website user authenication and access. i am using a website that has this and what happens is this... the company issued me a personal certificate, that i installed on my local machine. When i connect to the website it checks my local cert store for a cert issued by them and if none is found, no entry, if multiple are found, then a box displays to allow you to pick which one to use.
View 1 RepliesIm an electrical engineering student, and I am trying to utilize the serial port to give me high and low digital states. What i want to do is simply turn on an LED or turn it off. the basic gist of what I have been trying currently is that on a button click, serialPort1.DTREnable = enabled or disabled, indefinitely until the next button click.
So far, I have only been able to get the LED to momentarily flash... It seems to begin in an active state flash off, then immediately, return to its active state. I am using Visual Studio 2008. Can I use DTREnable to generate on/off states by enabling or disabling the pin? Is there a tutorial somewhere for electrical engineering applications using visual studio 2008?
i have a problem with my graduation project, i need to take a picture shoot automatically based on a signal from the parallel port, and save the picture on the harddisk , so the MATLAB will read this picture to process it.
[Code]...
Here is my issue/question. I am relatively new to VB.Net programming, and I have been assigned the task of creating an application that will go out to a Secure web site and download a file. My first issue is it best to do this using a Windows form, ASP.Net or what. My second and main question is how do I authenticated to the secure web site in .net code?
Upon connecting to the secure web site it asks me for a certificate, which at the moment I have to manually present, however we would like to automate this. Then after it authenticates I have to go a few more pages in before i get to the file that needs to be downloaded.Although this file changes daily it has the same key tag so I can hardcode that into the download application. I just need to figure out how to programically authenticate to the site with .Net
I'm looking for a library compatible with microsoft.net framework that allows the creation and verification of XAdES signatures (XAdES, XAdES-C, XAdES-XL, etc...).It is important that the library enable the programmer to choose:
1.- Type of certificate to use in the signature process (PFX file, Windows centralized store, SmartCard)
2.- CRL to validate the certificate.
3.- Possibility to include Time stamping on the signature.
4.- Possibility to include OCSP response on the signature.
All I found are libraries in Java, but have not found any libraries in .NET.
I am trying to design a digital clock using the drawing tool. i have drawn all the segments using the drawpen function and i have also created a timer that will get the current system time. i want to link the current system to the digital display i have drawn, so that when the time is 1:02 for example only that will highlight on the digital display
View 3 RepliesSome example program of vb.net using digital persona 4500 fingerprint scanner or teach us to study the codes to finish our thesis...
View 1 Replieshere know how to do to sign a file with certificate chain and crl embedded?I don't have ideia how to do that.
View 5 RepliesI wanted to generate digital signature in my asp.net application based on some value like date of birth. what is the way to do that ? i am using vb.net
View 1 RepliesI want only to get the digital signer name (for example Microsoft) of a file like sigcheck.[URL]...
View 3 RepliesHow do I get my form to display a simple digital counter? I have a "record" function on my program:
Private Sub Button13_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click
mciSendString("open new Type waveaudio Alias recsound", "", 0, 0)
mciSendString("record recsound", "", 0, 0)
End Sub
I want to have a simple digital counter display while the program is recording. That way the user can know how long the audio is so far while recording. Then when the user is done recording, the timer will stop.