sup, just getting into how to play sounds on a basic window. I receive this error from the build. 1>------ Build started: Project: chapter3_demo2, Configuration: Debug Win32 ------ 1>Linking... 1>demo3_2.obj : error LNK2019: unresolved external symbol __imp__PlaySoundA@12 referenced in function "long __stdcall WindowProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WindowProc@@YGJPAUHWND__@@IIJ@Z) 1>Debug\chapter3_demo2.exe : fatal error LNK1120: 1 unresolved externals 1>Build log was saved at "file://c:\Documents and Settings\Codes\T3DCHAP03\Copy (2) of 1\Debug\BuildLog.htm" 1>chapter3_demo2 - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== // DEMO3_2.CPP - Loading .WAV resources // INCLUDES /////////////////////////////////////////////// #define WIN32_LEAN_AND_MEAN // just say no to MFC #include <windows.h> // include all the windows headers #include <windowsx.h> // include useful macros #include <mmsystem.h> // very important and include WINMM.LIB too! #include <stdio.h> #include <stdlib.h> #include <math.h> #include "DEMO3_2RES.H" // DEFINES //////////////////////////////////////////////// // defines for windows #define WINDOW_CLASS_NAME "WINCLASS1" // GLOBALS //////////////////////////////////////////////// HWND main_window_handle = NULL; // globally track main window HINSTANCE hinstance_app = NULL; // globally track hinstance // FUNCTIONS ////////////////////////////////////////////// LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) { // this is the main message handler of the system PAINTSTRUCT ps; // used in WM_PAINT HDC hdc; // handle to a device context // what is the message switch(msg) { case WM_CREATE: { // do initialization stuff here // play the create sound once PlaySound(MAKEINTRESOURCE(SOUND_ID_CREATE), hinstance_app, SND_RESOURCE | SND_SYNC); // play the music in loop mode PlaySound(MAKEINTRESOURCE(SOUND_ID_MUSIC), hinstance_app, SND_RESOURCE | SND_ASYNC | SND_LOOP); // return success return(0); } break; case WM_PAINT: { // simply validate the window hdc = BeginPaint(hwnd,&ps); // you would do all your painting here EndPaint(hwnd,&ps); // return success return(0); } break; case WM_DESTROY: { // stop the sounds first PlaySound(NULL, hinstance_app, SND_PURGE); // kill the application, this sends a WM_QUIT message PostQuitMessage(0); // return success return(0); } break; default:break; } // end switch // process any messages that we didn't take care of return (DefWindowProc(hwnd, msg, wparam, lparam)); } // end WinProc // WINMAIN //////////////////////////////////////////////// int WINAPI WinMain( HINSTANCE hinstance, HINSTANCE hprevinstance, LPSTR lpcmdline, int ncmdshow) { WNDCLASSEX winclass; // this will hold the class we create HWND hwnd; // generic window handle MSG msg; // generic message // first fill in the window class stucture winclass.cbSize = sizeof(WNDCLASSEX); winclass.style = CS_DBLCLKS | CS_OWNDC | CS_HREDRAW | CS_VREDRAW; winclass.lpfnWndProc = WindowProc; winclass.cbClsExtra = 0; winclass.cbWndExtra = 0; winclass.hInstance = hinstance; winclass.hIcon = LoadIcon(hinstance, MAKEINTRESOURCE(ICON_T3DX)); winclass.hCursor = LoadCursor(hinstance, MAKEINTRESOURCE(CURSOR_CROSSHAIR)); winclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); winclass.lpszMenuName = NULL; winclass.lpszClassName = WINDOW_CLASS_NAME; winclass.hIconSm = LoadIcon(hinstance, MAKEINTRESOURCE(ICON_T3DX)); // save hinstance in global hinstance_app = hinstance; // register the window class if (!RegisterClassEx(&winclass)) return(0); // create the window if (!(hwnd = CreateWindowEx(NULL, // extended style WINDOW_CLASS_NAME, // class "Sound Resource Demo", // title WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0,0, // initial x,y 400,400, // initial width, height NULL, // handle to parent NULL, // handle to menu hinstance,// instance of this application NULL))) // extra creation parms return(0); // save main window handle main_window_handle = hwnd; // enter main event loop, but this time we use PeekMessage() // instead of GetMessage() to retrieve messages while(TRUE) { // test if there is a message in queue, if so get it if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { // test if this is a quit if (msg.message == WM_QUIT) break; // translate any accelerator keys TranslateMessage(&msg); // send the message to the window proc DispatchMessage(&msg); } // end if // main game processing goes here // Game_Main(); // or whatever your loop is called } // end while // return to Windows like this return(msg.wParam); } // end WinMain ///////////////////////////////////////////////////////////

thanks for the response,
searched windows for the .lib file found 3 versions:

C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2\Lib
C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2\Lib\AMD64
C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2\Lib\IE64

went to Tools->Options->Projects and Solutions->VC++ Directories->libraries and added:
C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2\Lib

saved and restarted, still no go.

Fixed,

Selected project properties and added an additional dependency winmm.lib. Is there a way i can add this to all my programs without going through this step repeatedly?

thanks for your help,
jason