error while using graphics program using GDI+

Question

When ever or what ever i do i dont understand why the heck is this error coming its eating my head. Every time i complie i graphics program using graphics.h or GDI+ i get the same dam old error every time PLEASE HELP ME its getting on my nerves.
This time i used GDI+

this is my code:

#include "stdafx.h"
#include "windows.h"
#include <Gdiplus.h> 
using namespace Gdiplus; 
#pragma comment(lib, "gdiplus.lib") 


VOID OnPaint(HDC hdc)
{
   Graphics graphics(hdc);
   Pen      pen(Color(255, 0, 0, 255));
   graphics.DrawLine(&pen, 0, 0, 200, 100);
}

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR, INT iCmdShow)
{
   HWND                hWnd;
   MSG                 msg;
   WNDCLASS            wndClass;
   GdiplusStartupInput gdiplusStartupInput;
   ULONG_PTR           gdiplusToken;
   
   // Initialize GDI+.
   GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
   
   wndClass.style          = CS_HREDRAW | CS_VREDRAW;
   wndClass.lpfnWndProc    = WndProc;
   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  = TEXT("GettingStarted");
   
   RegisterClass(&wndClass);
   
   hWnd = CreateWindow(
      TEXT("GettingStarted"),   // window class name
      TEXT("Getting Started"),  // window caption
      WS_OVERLAPPEDWINDOW,      // window style
      CW_USEDEFAULT,            // initial x position
      CW_USEDEFAULT,            // initial y position
      CW_USEDEFAULT,            // initial x size
      CW_USEDEFAULT,            // initial y size
      NULL,                     // parent window handle
      NULL,                     // window menu handle
      hInstance,                // program instance handle
      NULL);                    // creation parameters
	  
   ShowWindow(hWnd, iCmdShow);
   UpdateWindow(hWnd);
   
   while(GetMessage(&msg, NULL, 0, 0))
   {
      TranslateMessage(&msg);
      DispatchMessage(&msg);
   }
   
   GdiplusShutdown(gdiplusToken);
   return msg.wParam;
}  // WinMain

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, 
   WPARAM wParam, LPARAM lParam)
{
   HDC          hdc;
   PAINTSTRUCT  ps;
   
   switch(message)
   {
   case WM_PAINT:
      hdc = BeginPaint(hWnd, &ps);
      OnPaint(hdc);
      EndPaint(hWnd, &ps);
      return 0;
   case WM_DESTROY:
      PostQuitMessage(0);
      return 0;
   default:
      return DefWindowProc(hWnd, message, wParam, lParam);
   }
}

and this little problem is troubling me
error

1>------ Build started: Project: Development, Configuration: Debug Win32 ------
1>Compiling...
1>Development.cpp
1>Linking...
1>MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup
1>C:\Users\Abhimanyu\Documents\Visual Studio 2008\Projects\Development\Debug\Development.exe : fatal error LNK1120: 1 unresolved externals
1>Build log was saved at "file://c:\Users\Abhimanyu\Documents\Visual Studio 2008\Projects\Development\Development\Debug\BuildLog.htm"
1>Development - 2 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

PLEASE HELP ME PLEASE  PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE

Answer 1

Start a new project and select Win32 App instead of Win32 Console App.

Win32 Apps must start with WinMain().

Win32 Console Apps must start with main().

Answer 2

Hi,

Or you can try to change SubSystem to Windows(/SUBSYSTEM:CONSOLE ) by navigating Project Properties > Configuration Properties > Linker > System .

Best Regards,
Nancy

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