Sliders and Windows API

This is a discussion on Sliders and Windows API within the Windows Programming forums, part of the Platform Specific Boards category; How would i go about making a vertical slider bar that could control volume, i am using windows api with ...

  1. #1
    Registered User AtomRiot's Avatar
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    Sliders and Windows API

    How would i go about making a vertical slider bar that could control volume, i am using windows api with "windows.h" is there already something set up like this or how could i create it? i am using vc
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  2. #2
    Registered User AtomRiot's Avatar
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    Thumbs up

    would it be possible to just create a static box that is wide enough to show only the scroll bar if i gave it a vertical scroll bar?

    is there a way to re-skin those things, I was hoping for something that looked like the sliders in the volume control box for windows.

    if i was to use the static box method, could i get like a percentage of where its at or could i make it so many pixels and get it so i can use it to set the volume with fmod using the FSOUND_SetVolume function with the value from the scroll bar

    any input would be great, thanks in advance
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  3. #3
    train spotter
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    Have you looked at TrackBars?

    ie msctls_trackbar32

    using TBM_XXXXX msg's

    ie TBM_SETRANGE
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  4. #4
    Registered User AtomRiot's Avatar
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    Where should i actually set those messages at? is it in the switch statement for the messages or right after the trackbar is defined in the wm_create case? use a SendMessage command???
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  5. #5
    Registered User AtomRiot's Avatar
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    wait, nevermind, i think i found it, there is an example on msdn thanks
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  6. #6
    Registered User AtomRiot's Avatar
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    Angry a zero problem

    i am having a problem with the track bar, whenever a user slides it, it willl show the appropriate value while the mouse button is still clicked but once they let go, it goes to zero my scroll message is here

    Code:
    case WM_VSCROLL:
    {
        int nPos=(short int)HIWORD(wParam);
       FSOUND_SetVolume(iStreamChannel,nPos);
       itoa(nPos,chPos,10);
       SetWindowText(GetDlgItem(hwnd, IDC_STEXT_PLYR20), chPos);
       break;
    }
    and my initialization of the trackbar here:

    Code:
    hTrackVolume = CreateWindowEx( 
      0,
      TRACKBAR_CLASS, 
      "Trackbar Control",
      WS_CHILD | WS_VISIBLE | 
      TBS_ENABLESELRANGE | TBS_AUTOTICKS |
      TBS_BOTH | TBS_VERT |
      TBS_FIXEDLENGTH ,
      565, 130,
      45, 170,
      hwnd,
      (HMENU)IDC_TRACK_VOLUME, 
      hInstance,
      NULL
    );
    SendMessage(hTrackVolume, TBM_SETRANGE, 
      (WPARAM) TRUE,
      (LPARAM) MAKELONG(1, 255));
    SendMessage(hTrackVolume, TBM_SETPOS, 
      (WPARAM) TRUE,
      (LPARAM) 5);
    SendMessage(hTrackVolume, TBM_SETPAGESIZE, 
      0, 
      (LPARAM) 10);
    SendMessage(hTrackVolume, TBM_SETTICFREQ,
      (WPARAM) 10,
      (LPARAM) 0);
    SetFocus(hTrackVolume);
    anyone see any problems, i know it is something stupid or something i screwed up

    any follow ups would be greatly appriciated
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  7. #7
    Registered User AtomRiot's Avatar
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    Talking Nevermind

    I figured it out once again, i put my melon to the test and it came out on top
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