listbox win32

how do i get a selected item in the list box....

i have my code to play a mp3....but cant get the listbox item

here is my code


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#define _WIN32_IE 0x0300

// includes
#include <windows.h>
#include <mmsystem.h>
#include <ufmod.h>
#include <sys/stat.h>
#include <commdlg.h>
#include "res.h"
#include "muzic.h"
#include <commctrl.h>
#include "vfw.h"
MCIDEVICEID pDevice = 0;
using namespace std;






HBITMAP hCarBmp = NULL;
HBITMAP hSkinMBmp = NULL;
int i = 0;
HBITMAP hskin;
RECT rc;
HBITMAP hbup;
HBITMAP hbdn;
HBITMAP exitup;
HBITMAP exitdn;
HWND m_Video;

MCI_OPEN_PARMS op;
// Destroy our windows caption
void DestroyCaption(HWND hwnd, int windowWidth, int windowHeight)
{
 DWORD dwStyle = GetWindowLong(hwnd, GWL_STYLE); 
 dwStyle &= ~(WS_CAPTION|WS_SIZEBOX); 
 
 SetWindowLong(hwnd, GWL_STYLE, dwStyle); 
 InvalidateRect(hwnd, NULL, true); 
 SetWindowPos(hwnd, NULL, 0,0,windowWidth, windowHeight, SWP_NOMOVE | SWP_NOZORDER);  
}

// Our dialogs callback routine
BOOL CALLBACK dialog(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
    
	

    INITCOMMONCONTROLSEX InitCtrlEx;
InitCtrlEx.dwSize = sizeof(INITCOMMONCONTROLSEX);
	InitCtrlEx.dwICC  = ICC_PROGRESS_CLASS;
	InitCommonControlsEx(&InitCtrlEx);

  	switch(Message)
	{
       
	


// make window layered and set all pixels with an RGB value of 0,0,255 invisible              
case WM_INITDIALOG:
{
    
     case IDC_LIST1:
                // It's our listbox, check the notification code
                switch(HIWORD(wParam))
                {
                    case LBN_SELCHANGE:
                        // Selection changed, do stuff here.
                    break;
                }
                
            break;

             
       m_Video = NULL; 
             //AnimateWindow(hWnd);

  
   

}     
break;

// move our window 
case WM_LBUTTONDOWN:
    {
        PostMessage(hwnd, WM_NCLBUTTONDOWN, HTCAPTION,0);
        break;
    }
    	case WM_DRAWITEM:
            {
		
		   	 break;
            }
            
// cleanup
   case WM_CLOSE:
    {     
	    DeleteObject(hSkinMBmp);
        EndDialog(hwnd, 0);
		break;
    }
       
// draw our bitmap
   case WM_PAINT: 
    {
        
RECT rect;

        BITMAP bm;
        BITMAP talkwithhandle;
        PAINTSTRUCT attribstobmp;
        PAINTSTRUCT ps;
        HDC hdc = BeginPaint(hwnd, &ps);
       HDC dcstuff = BeginPaint(hwnd, &attribstobmp);
        HDC dcSkin = CreateCompatibleDC(hdc); 
        HDC dcinmem = CreateCompatibleDC(dcstuff); 
        GetObject(hSkinMBmp, sizeof(bm), &bm);
        GetObject(hCarBmp, sizeof(talkwithhandle), &talkwithhandle);
        SelectObject(dcSkin, hSkinMBmp);
        SelectObject(dcinmem, hCarBmp);
     
      BitBlt(hdc, 10,10,160,108, dcinmem, 0, 0, SRCCOPY);
        DeleteDC(dcSkin);
        DeleteDC(dcinmem);
        EndPaint(hwnd, &ps);
         EndPaint(hwnd, &attribstobmp);
        break;
    } 
        
    case WM_COMMAND: 
         {
if(((HWND)lParam) && (HIWORD(wParam) == BN_CLICKED)){
 int iMID;
                 iMID = LOWORD(wParam);

		
           switch(iMID){
              

	case ID_ADD:
         {
                
                OPENFILENAME ofn;       // common dialog box structure
char szFile[260];       // buffer for file name

// Initialize OPENFILENAME
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hwnd;  // handle to owner window
ofn.lpstrFile = szFile;
//
// Set lpstrFile[0] to '\0' so that GetOpenFileName does not 
// use the contents of szFile to initialize itself.
//
ofn.lpstrTitle = TEXT("Your Title Here");
ofn.lpstrFile[0] = '\0';
ofn.nMaxFile = sizeof(szFile);
// filter name followed by null followed by filter extension,
// repeat for each filter, and end list with double-null
ofn.lpstrFilter = "All\0*.*\0Text\0*.TXT\0";
ofn.nFilterIndex = 1; // initial filter to select
ofn.lpstrFileTitle = NULL; // initial file to select
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;

// Display the Open dialog box. 

if(GetOpenFileName(&ofn) == TRUE){
                       


                   
                         m_Video = MCIWndCreate(hwnd,NULL,MCIWNDF_NOPLAYBAR,szFile);
                          MoveWindow (m_Video, 729, 729, 1, 1, TRUE);
                        
SendDlgItemMessage(hwnd, IDC_LIST1, LB_ADDFILE, (WPARAM) NULL, (LPARAM)szFile);
MCIWndPlay(m_Video);




                         }                         
                
                
                }
                break;
                case ID_PLAY:
                     {
                       
              
                        
                             
                             }
                             break;
                case ID_CLEAR:
                     {
                              
                     SendDlgItemMessage(hwnd, IDC_LIST1,LB_RESETCONTENT, 0, 0);
                     
                     
                     
                     
                     }
                     break;
                case ID_REMOVE:
                     
                     {
                            
                            
                            SendDlgItemMessage(hwnd, IDC_LIST1, LB_GETCURSEL, 0, 0);
                         SendDlgItemMessage(hwnd, IDC_LIST1, LB_DELETESTRING , 0, 0);


                               
                               
                               }
         
		}}
		break;



}
       default:
			return FALSE;
	}
	 return DefWindowProc(hwnd,Message,wParam,lParam);
}


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc; 
    wc.cbClsExtra = 0; 
    wc.cbSize = sizeof(wc); 
    wc.cbWndExtra = 0; 
    wc.hbrBackground = NULL;
   
    wc.hIcon = LoadIcon(NULL,MAKEINTRESOURCE(IDI_ICON));
    wc.hIconSm = LoadIcon(NULL,MAKEINTRESOURCE(IDI_ICON));
    wc.hInstance = GetModuleHandle(NULL); 

    wc.lpszClassName = "WinPatch";
    wc.lpszMenuName = NULL;
    wc.style = CS_VREDRAW | CS_HREDRAW | CS_OWNDC |CS_DBLCLKS;
  
  // load our bitmap
hCarBmp= LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_BALL));  
   // create ourlog    
   return DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG), NULL, dialog);
}
In the code you provided you have left yourself no way to determine which item in the listbox has been selected. You have done this --

SendDlgItemMessage(hwnd, IDC_LIST1, LB_GETCURSEL, 0, 0);

but this doesn't tell you anything. In order for it to tell you which item is selected, you need to do this --

DWORD dw=SendDlgItemMessage(hwnd,IDC_LIST1,LB_GETCURSEL,0,0);

and then you manipulate the dw variable to access the item.
This only works if the listbox allow only one item selected. If multiple selections are allowed, you need to send LB_GETSELITEMS message to get all selected items index. To get actual strings from listbox send LB_GETTEXT in a loop.
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