How to change the volume by using mouse wheel?

Question

I am new and know little about this. I am using WMPLib namespace.

I tried figuring out how to change the volume by using the mouse wheel:

void Form1_MouseWheel(object sender, MouseEventArgs e)
{
    wmpPlayer.settings.volume = //inc or dec
}

How do I do this?

Set the volume to a larger value than it currently is in that case. — David Heffernan, Oct 08 '15 at 11:37
`wmpPlayer.settings.volume += e.Delta;` where delta is positive when you scroll up or its negative when you scroll down. it should be something like this i guess you are using win form. — M.kazem Akhgary, Oct 08 '15 at 11:38
@M.kazemAkhgary no, it turns to 0 or 100 when i scroll up or down - i finally got it — newbieguy, Oct 08 '15 at 11:42

score 1 · Accepted Answer · answered Oct 08 '15 at 11:40

1

Thanks for the answers...

I finally got it:

    void Form1_MouseWheel(object sender, MouseEventArgs e)
    {
        if(e.Delta > 0)
            wmpPlayer.settings.volume = activeMusic.settings.volume + 1;
        else
            wmpPlayer.settings.volume = activeMusic.settings.volume - 1;

        //to check the volume no.
        MessageBox.Show(Convert.ToString(wmpPlayer.settings.volume));
    }

answered Oct 08 '15 at 11:40

newbieguy

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good one but how `wmpPlayer.settings.volume += e.Delta;` does not work? just curious , – M.kazem Akhgary Oct 08 '15 at 11:47
test it :) i tested it and check it with `MessageBox.Show(Convert.ToString(wmpPlayer.settings.volume))` – newbieguy Oct 08 '15 at 11:50

score 0 · Answer 2 · edited May 23 '17 at 12:14

0

Why don't you simple use a wmpPlayer.settings.volume++ to achieve this ? You would just have to find a way to check if it's a scrolldown or scrollup !

Check out this post, it might be helping : Using WMP control, volume changes main app volume

edited May 23 '17 at 12:14

Community

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answered Oct 08 '15 at 11:30

Alexandre Beaudet

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score 0 · Answer 3 · answered Oct 08 '15 at 11:32

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A property can have a get or set method to it !

wmpPlayer.settings.volume= wmpPlayer.settings.volume + myValue;

So you first get the current volume value and add to it your value which could be positive or negative depending upon scroll up/down and finally you set it as the final volume

answered Oct 08 '15 at 11:32

Rahul Jha

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@cromix That would depend upon wheel rotation by user : Read [this](https://msdn.microsoft.com/en-us/library/system.windows.forms.control.mousewheel(v=vs.110).aspx) ! Panel_MouseWheel();//Modify this in the code – Rahul Jha Oct 08 '15 at 11:41

How to change the volume by using mouse wheel?

3 Answers3