How do I change the Windows Speaker Volume (The Main Output Volume Control Volume Value) via VB.NET? I want a way to like indirectly change the whole system's volume like we do it from the Volume Control application on Windows 7
View 1 RepliesI ve blackled it and found a 1000 lines code. I need something more simplified...
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I'm attempting to use waveOutSetVolume from coredll.dll to gradually increase the audio volume from silent (or near silent) to maximum.
Most of the code examples I'm finding show some predefined set points for Off, Low, Normal, Medium, High, and Very High like this:
Public Enum Volumes As Integer
OFF = 0
LOW = 858993459
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OK, and here's some API documentation which doesn't make a lot of sense to me in this particular context. What is low-order word and high-order word and how can they both exist in a single value?
· dwVolume New volume setting. The low-order word contains the left-channel volume setting, and the high-order word contains the right-channel setting. A value of 0xFFFF represents full volume, and a value of 0x0000 is silence. If a device does not support both left and right volume control, the low-order word of dwVolume specifies the volume level, and the high-order word is ignored.
Maby ive been going about this the wrong way. Im attempting to change the system volume using VB.net. I dont want to use the mediaplayer stuff because i dont want that to be open the whole time. if someone could point me to a working API or something for changing system volume and getting the current volume id be great full! plus.
View 3 Replieshow to control windows 7 master volume. I would like to get the current volume / set the volume and also mute / unmute it.I've found lots of examples of pre vista volume control but only a single c# which is no good to me beings a major newbie with vb.net (I've play with vb6 before now)As far as I can see I need to do something with DefaultAudioEndpoint.. but what I'm not sure. I'm building a media player which is why I'm after controlling the master as well as my application.
View 4 RepliesHow can I get the master volume level in Visual Basic? Must work on Vista and 7
View 4 RepliesI want to be able to change (Increase or Decrease) the computers bass, Main volume, view connected audio devices (Output Devices) and finally display the computers volume with a progressbar.
View 1 RepliesI have been surfing the net all night to try and just learn how to do what I think should be a simple thing! How do I in vb.net when I press a button make it so that the windows volume changes to 50%? Is this that hard to do? Why cant it be like "windows.volume = 50" or something?
View 11 RepliesSo I'm a bit new to the whole Vista/7 audio setup. My understanding is that a new "mixer" is created for each application. Is there some new .Net function which interfaces with these mixers? I'm actually trying to create an application which can adjust the MAIN system volume level as well as the mute function.
I was looking at the Endpointvolume API however I cant get it to work for me :(. Does anyone have a vb.net demo of how to harness this API?
how to get current volume of system sound device in windows 7 ?I looked up in google but every solution returned values like -1, 4686346, ...
View 1 Replies1) I want to increase or decrease the volume of windows media player thru coding..On Image Click, Can somebody give me refernces..so that I found a way to start.
2) How To Play Audio File with Real palyer??
I tried to implement Trackbar1 with Windows Media Player. The volume stays at the same sound level no matter how much I move the slider. Here is the code.
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show code for creating several tones to play in my computer speaker that have different frequencies for the tones and have different time lengths the tones play for!
View 11 Repliesi need to make an app which detects if the speaker has given out beep sound or not
View 3 Repliesi need to make an app which detects if the speaker has given out beep sound or not
View 7 Repliesif anybody can help me to get the code to record the audio, that is the out put of the speaker?
i got the code to record voice from the microphone, but cant record the audio from speakers on the same time, that is my need.
is it possible to retrieve the current song (mp3) that is being played through your computer's speakers? No matter which program is playing the song.. This has to be possible since when a program plays an mp3 some code has to be passed through Windows telling it to play the song SongABC.mp3 using the computer's default speakers...
View 9 Replieshow to detect what frequency of the sound that is playing on a speaker on vb2005. what reference should i have. what function should i use.
View 3 RepliesIt SOUNDS simple. In aVusual Basic application, how do I made an open (or controlled thread) connection to continuausly stream the microphone to the speakers?
View 1 RepliesI know it is possible to use the internal system speaker to generate sound.
EG
System.Console.Beep(500, 500)
'Beep(FREQUENCY,DURATION)
However i was wondering if anyone knows if it is possible and how to go about using said system speaker to speak - MESSAGE YOU ARE NOT AUTHORISED - for example
I am creating an app that allows admin access via a usb key (this is working fine) and i want their system to sound an alarm with a warning message should they try to force thier way into the admin section without the admin usb key.
I've been investigating and experimenting with the code snippet on this page: [URL] - with some rather undesirable and wacky results being produced.
Why do I need this? I am attempting to adapt this snippet to suit my needs for a day/night system in the game I am working on. I am sure that the correct results can be produced with this snippet, but at the very least I need some guidance as to how I can achieve what I want.
i have made 3 projects in vb.net.for all those three projects i have used this code
Me.WindowState = FormWindowState.Maximized
my laptop resolution is 1366x768.for my resolution i'm getting the desired output but for any other resolution i'm finding the objects being misplaced.
is there any way by which i can make my forms adjust for any particular resolution.
Im attempting to make this tank fire a "bullet" or bullets. It fires them just fine bu leaves a trail behind and I need it to refresh and remove previous images so its a smooth action. I thought this code below was going to work but its not.
Class:
Public Class Bullet
Dim image As Image = My.Resources.Bullet_1
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I'm having trouble adjusting the font style in a RichTextBox and I've seen a few different approaches that talk about single attributes (like toggling bold on and off)... but I'm trying to make it so that my font class can adjust any attribute (bold, italic, underline).
I realize that Font.Style is a set of Boolean flags (a bitfield?)... but I'm not sure how to handle the attributes all at once.
Here is the troublesome code:
Public Sub ModifyFontStyle(Optional ByVal Plain As Object = Nothing, Optional ByVal Bold As Object = Nothing, _
Optional ByVal Italics As Object = Nothing, Optional ByVal Underlined As Object = Nothing)
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What is happening to the font? The text should be underlined and in italics not strikethrough...
Is this a logic error or a simple misunderstanding on my part?
I've developed an application that acquires images from my Logitech QuickCam Pro 9000 using WIA. The problem is that I cannot figure out how to adjust the quality of the image taken by the camera. The camera has a 2MP lense, but the program will only acquire a picture of 320x240 pixels, which is the lowest resolution the camera has. How do I tell the camera to take a picture at one of it's other resolutions? IE: 640x480, 960x720, 1.3MP, or 2MP?
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It seems there is no easy solution for adjusting a specific format of a used font e.g. for Text. As I understood in order to change any part of the used format we need to use New Font(...) form of implementation which looks a bit odd to me.
TextBox1.Font.Bold = True
which needs to be rewritten as:
TextBox1.Font = New Font(TextBox1.Font, FontStyle.Bold)
which is no reason that I can see why it should be hard like that.Anyway, here is my solution for adjusting the font style using four CheckBox controls (i.e. BBold, BUnderline, BItalic and BStrikeout).Preview is a TextBox control.
Private Sub SetFontStyle(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BBold.CheckedChanged, _
BUnderline.CheckedChanged, _
BItalic.CheckedChanged, [code]......
I've a form set to size 1240:750. On my PC where I've VB2010 installed, the screen size is set to 1680:1024 and the form can be viewed fine but on a PC with screen size set to 1280:1024 (higher than the form) the form in question is cropped almost a third of it. To adjust the form to everyone screen size I set the below code at load with no avail.
'Autosize form to screen
Me.Height = (SystemInformation.PrimaryMonitorSize.Height) * (0.9)
Me.Width = (SystemInformation.PrimaryMonitorSize.Width) '* (0.9)
Me.MaximumSize = New System.Drawing.Size(Me.Width, Me.Height)
Me.MinimumSize = New System.Drawing.Size(1240, 750)
I have a windows form which contains a group of panels in a flowlayout control. Each panel has a button acrossthe top which is always visible and clicking on it expands the panel to view the other controls on it. clicking on it again shrinks the panel back to the size of the button. A simple form of menu. The flowlayout control has autoscroll enabled and as enough panels are resized (opened) they obviously are too big for the form and a scroll bar pops up.To get the most recently opened panel in the viewable area I use
FlowLayout.ScrollControlIntoView(pnECBF)
where pnECBF is the panel just resized. This works but places the panel at the bottom of the form i.e just in the visible area. I want the user to be able to see the panel AND the next menu button which is on the subsequent panel. So basically what I want is the panel into the visible area +25 pixels for the next panels menu button.
I'm trying to make a string inputted on a separate form's text box adjust the value of a string on another form. Is there a way to do this rather than exporting the data to a file and retrieving it on the other form?
View 7 RepliesI have been trying to write a third-party status console for one of the applications I work with. I am unaccustomed to using pinvoke commands, but found some tutorials and attempted to use ReadProcessMemory from kernel32.dll:
<DllImportAttribute("kernel32.dll", EntryPoint:="ReadProcessMemory", SetLastError:=True)> _
Private Shared Function ReadProcessMemory(<InAttribute()> ByVal hProcess As
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