VLC like seek bar

[LulzCoder]

Anyone know how to make a VLC like seek bar in plain Win32 C without using QT or MFC?

Or skinning a slider control to like it.

Edited May 5, 2013 by LulzCoder

[mrexodia]

What's wrong with the slider control?

Greetings

[dn5]

Without QT or MFC? That questions is pretty strange. Why wouldn't you use MFC as all normal people?! Try other window UI frameworks. There are planty of them for C.

[mrexodia]

Why wouldn't you use MFC as all normal people?!

Damn, I thought I was normal...

[Blue]

@dn5: I guess he is not using MFC because it's classes are pretty ugly to use[infact for me], needs more dependency.

@exodia: Using slider control as a seek bar is not a good idea, because slider control is not precise with clicks. As in a normal seek bar if we click then bar[thumb] directly jumps there, but in a standard slider control when we click the thumb goes only to the next tick.

[enhzflep]

I just played with a dialog app/ The dialog only contains a slider control, named IDC_SLIDER1.

 

The client are of the slider is 20 pixels wider than the horizontal track draw in it. As a consequence, the range of motion is the width of the slider - 20 pixels.

This also means that the smallest value of the slider will occur when the 10 pixels to the right of the control's left edge. That's why the hard-coded values of 10 and 20 have been chosen. Obviously, they shouldn't be hard-coded..

 

 

#include <windows.h>

#include <commctrl.h>

#include <stdio.h>

#include "resource.h"

HINSTANCE hInst;

int sliderWidth;

long oldProc;

LRESULT CALLBACK sliderWindowProc(HWND hwndSlider, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

    switch (uMsg)

    {

        case WM_LBUTTONDOWN:

            PostMessage(hwndSlider, TBM_SETPOS, true, LOWORD(lParam-10));

            return 0;

        case WM_MOUSEMOVE:

                if (wParam & MK_LBUTTON)

                {

                    PostMessage(hwndSlider, TBM_SETPOS, true, LOWORD(lParam-10));

                    return 0;

                }

    }

    return CallWindowProc( (WNDPROC)oldProc, hwndSlider, uMsg, wParam, lParam);

}

BOOL CALLBACK DlgMain(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

    RECT mRect;

    HWND slider;

    switch(uMsg)

    {

    case WM_INITDIALOG:

    {

            slider = GetDlgItem(hwndDlg, IDC_SLIDER1);

            oldProc = GetWindowLong(slider, GWL_WNDPROC);

            SetWindowLong(slider, GWL_WNDPROC, (long)sliderWindowProc);

            GetClientRect( GetDlgItem(hwndDlg, IDC_SLIDER1), &mRect);

            sliderWidth = (mRect.right - mRect.left) - 20;

            printf("Slider Width (pixels): %d\n", sliderWidth);

            SendDlgItemMessage(hwndDlg, IDC_SLIDER1, TBM_SETRANGE, true, MAKELONG(0,sliderWidth));

  //          SendDlgItemMessage(hwndDlg, IDC_SLIDER1, TBM_SETPAGESIZE, 0, 1);

            SendDlgItemMessage(hwndDlg, IDC_SLIDER1, TBM_SETTICFREQ, 1, 0);

    }

    return TRUE;

    case WM_CLOSE:

    {

        EndDialog(hwndDlg, 0);

    }

    return TRUE;

    case WM_COMMAND:

    {

        switch(LOWORD(wParam))

        {

        }

    }

    return TRUE;

    }

    return FALSE;

}

int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)

{

    hInst=hInstance;

    InitCommonControls();

    return DialogBox(hInst, MAKEINTRESOURCE(DLG_MAIN), NULL, (DLGPROC)DlgMain);

}