Thread: just starting in windows programming

hey im trying to learn graphics/games and well DirectX seems to be the main graphics thing for windows and i copy and pasted this code from the tutorial i was using and got an error and not sure why

am using 2003 visual studio .net compiler and on the Dev Compiler cause i only have the .net one cause school gave it to me but on the Dev compiler i got similar errors as well so

thanks

Code:

// Standard windows include
#include <windows.h>

// Message Loop CallBack Function prototype
LRESULT CALLBACK fnMessageProcessor (HWND, UINT, WPARAM, LPARAM);
// Function called automatically when the program starts
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine,int iCmdShow)
{
   HWND         hWnd;
   MSG          msg;
   WNDCLASSEX   wndclass;

   // Set up window class
   wndclass.cbSize        = sizeof(WNDCLASSEX);
   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
   wndclass.lpfnWndProc   = fnMessageProcessor;
   wndclass.cbClsExtra    = 0;
   wndclass.cbWndExtra    = 0;
   wndclass.hInstance     = hInstance;
   wndclass.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
   wndclass.hCursor       = LoadCursor(NULL, IDC_ARROW);
   wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
   wndclass.lpszMenuName  = NULL;
   wndclass.lpszClassName = "Window Class";
// Class Name
   wndclass.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

   // Register the window class
   if(RegisterClassEx(&wndclass) == 0)
   {
       // The program failed, exit
       exit(1);
   }

   // Create the window
   hWnd = CreateWindowEx(
      WS_EX_OVERLAPPEDWINDOW,
      "Window Class",            // Class name
      "Create Window Example",   // Title bar text
      WS_OVERLAPPEDWINDOW,
      0,
      0,
      320,
      200,
      NULL,
      NULL,
      hInstance,
      NULL);

   // Display the window
   ShowWindow(hWnd, iCmdShow);

   // Process messages until the program is terminated
   while(GetMessage (&msg, NULL, 0, 0))
   {
      TranslateMessage(&msg);
      DispatchMessage(&msg);
   }

   return (msg.wParam);
}

// Message loop callBack function (REQUIRED FOR ALL WINDOWS PROGRAMS)
LRESULT CALLBACK fnMessageProcessor (HWND hWnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
   switch(iMsg)
   {
      // Called when window is first created
      case WM_CREATE:
         return(0);
      // Called when the window is refreshed
      case WM_PAINT:
         return(0);
      // Called when the user closes the window
      case WM_DESTROY:
         PostQuitMessage(0);
         return(0);
      default:
         return DefWindowProc(hWnd, iMsg, wParam, lParam);
   }
}

.NET ERRORS
c:\source\game learn\game learn proj\createwindow.cpp(60): warning C4244: 'return' : conversion from 'WPARAM' to 'int', possible loss of data
game learn proj error LNK2019: unresolved external symbol _main referenced in function _mainCRTStartup
game learn proj fatal error LNK1120: 1 unresolved externals

DEV ERRORS
[Linker error] undefined reference to `GetStockObject@4'
C:\source\Makefile.win [Build Error] [Project1.exe] Error 1

out of curiousity whats the difference between the two?

One is for Win32 Console only, looks for main to begin the exectuion of the code, Win32 is for windows GUI programming, looks for WinMain to begin code execution.

so on the dev compiler for what my friends use then they should select windows application? instead of empty project? to fix the errors that i got on that compiler? or as i see it started with some premade code so i guess so lol

but then adding more files is the same just add them to the project normally and rebuild it all?