Windows Media Player embedded in basic code ( mp3 wma mid )

' embeds the Windows Media Player ACTIVEX control within a BCX Form
' original PBWIN code by Jose Roca, modified by Kevin Diggins and 
' Mike Henning for BCX, COM binding credit goes to Ljubisa Knezevic
' requires Windows Media Player, Automatic Template Libraries are in ATL.DLL
' needs BCX basic ver 5.05.05 or later, download free package from:
' http://www.rjpcomputing.com/programming/bcx/devsuite.html
' you can play MP3  WMA  MID  and WAV files and more

$LIBRARY <oleaut32.lib>
$LIBRARY <uuid.lib>
#include <oaidl.h>

' this generates WinMain(), sets the Classname and the scalefactor
GUI "MediaPlayer4", PIXELS

CONST IDC_CTRL  = 1001
CONST IDC_Btn1  = 1002

GLOBAL hWmp  AS  HWND
GLOBAL Form  AS  HWND
GLOBAL Btn1  AS  HWND

GLOBAL pUnk  AS  IUnknown PTR
GLOBAL objWmp as Object
GLOBAL Pth$   ' string


' required to create the form and it's components
SUB FORMLOAD
  DIM RAW Style = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN
  BCX_SHOW_COM_ERRORS(TRUE)
  
  Pth$ = SYSDIR$ & "\atl.dll"  ' path string for ATL.DLL
  AtlAxWinInit(lib Pth$)       ' initialize ATL.DLL

  Form = BCX_FORM("Embedded Media Player",0,0,450,300,Style,WS_EX_CONTROLPARENT)
  hWmp = BCX_CONTROL("AtlAxWin",Form,"WMPlayer.OCX",IDC_CTRL,0,0,0,0)
  Btn1 = BCX_BUTTON("Load",Form,IDC_Btn1)
  
  AtlAxGetControl(lib Pth$, hWmp, &pUnk)
  objWmp = BCX_DispatchObject(pUnk, TRUE)

  SHOW(Form)
END SUB


' code between BEGIN EVENTS/END EVENTS takes care of the event messages
BEGIN EVENTS
DIM RAW rc AS RECT

SELECT CASE CBMSG

  CASE WM_SYSCOMMAND
    ' keeps the program from remaining in memory
    IF (wParam & 0xFFF0) = SC_CLOSE THEN
      SendMessage(hWnd, WM_DESTROY, wParam, lParam)
      EXIT FUNCTION
    END IF
  
   ' set up the OpenFileDialog and get the file's name   
  CASE WM_COMMAND
    ' the load button has been clicked
    IF LOWORD(wParam) = IDC_Btn1 THEN
      DIM Filename$
      Dim Mask$
      Mask$ = "Music Files|*.mid;*.mp3;*.wma;*.wav|"
      ' initial dir is "D:\Music1\MP3", change for your needs
      Filename$ = GETFILENAME$("Open Media File",Mask$,0,Form,0,"D:\Music1\MP3")
      IF Filename$ > "" THEN
        LoadWmp (Filename$)
        Filename$ = ""
      END IF  ' filename
    END IF  ' btn1

  ' take care of resizing
  CASE WM_SIZE
    IF wParam <> SIZE_MINIMIZED THEN
      GetClientRect (hWnd, &rc)
      MoveWindow(GetDlgItem(hWnd,IDC_CTRL),0,25, rc.right-rc.left,rc.bottom-rc.top-25,TRUE)
    END IF
    
  ' clean up and exit properly
  CASE WM_DESTROY
    Set objWmp = Nothing
    PostQuitMessage(0)
    EXIT FUNCTION
    
END SELECT

END EVENTS


' load the music file
SUB LoadWmp (Filename$)
  objWmp.url = Filename$ 
END SUB