[Win32/MFC] Win32 기본 윈도우창 출력

// Win32 기본창 출력
#include <Windows.h>
#include <tchar.h>

HINSTANCE g_hInst = NULL;

void InitWndClass( HINSTANCE hInstance, LPCTSTR lpszClassName );
int MessageRun( void );
LRESULT CALLBACK WndProc( HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam );

//////////////////////////////////////////////////////////////////////////
// hPrevInstance=16비트 윈도우의 잔재로 항상 NULL값을 가지고 사용하지 않는다.
int APIENTRY _tWinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in_opt LPTSTR lpCmdLine, __in int nShowCmd )
{
 const LPCTSTR lpszClassName = _T("x108zero");

 g_hInst = hInstance;

 // Window Class Struct에 값 입력
 InitWndClass( hInstance, lpszClassName );

 // Windows 생성
 HWND hWnd = CreateWindow( lpszClassName, lpszClassName, WS_OVERLAPPEDWINDOW,
  CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
  NULL, (HMENU)NULL, hInstance, NULL );
 if( NULL == hWnd )
 {
  MessageBox( hWnd, _T("Window Create Error"), _T("Error"), MB_OK );
  return -1;
 }
 ShowWindow( hWnd, nShowCmd );

 // 메시지 처리
 int nMessage = MessageRun();

 return nMessage;
}

//////////////////////////////////////////////////////////////////////////
void InitWndClass( HINSTANCE hInstance, LPCTSTR lpszClassName )
{
 WNDCLASS WndClass;
 ZeroMemory( &WndClass, sizeof(WndClass) );

 WndClass.cbClsExtra  = 0;
 WndClass.cbWndExtra  = 0;
 WndClass.hbrBackground = (HBRUSH)( COLOR_WINDOW + 1 );
 WndClass.hCursor  = LoadCursor( NULL, IDC_ARROW );
 WndClass.hIcon   = LoadIcon(   NULL, IDI_APPLICATION );
 WndClass.hInstance  = hInstance;
 WndClass.lpfnWndProc = WndProc;
 WndClass.lpszClassName = lpszClassName;
 WndClass.lpszMenuName = NULL;
 WndClass.style   = CS_HREDRAW | CS_VREDRAW;

 RegisterClass( &WndClass ); // Window Class 등록
}

//////////////////////////////////////////////////////////////////////////
int MessageRun( void )
{
 MSG Message;
 ZeroMemory( &Message, sizeof(Message) );

 while( GetMessage( &Message, NULL, 0, 0 ) )
 {
  TranslateMessage( &Message );
  DispatchMessage(  &Message );

 } // end of while( GetMessage( &Message, NULL, 0, 0 ) )

 return (int)Message.wParam;
}

//////////////////////////////////////////////////////////////////////////
LRESULT CALLBACK WndProc( HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam )
{
 switch( iMessage )
 {
 case WM_CREATE:
  return 0;

 case WM_PAINT:
  {
   PAINTSTRUCT ps;
   ZeroMemory( &ps, sizeof(ps) );
   HDC hDC = BeginPaint( hWnd, &ps );
   EndPaint( hWnd, &ps );
  }
  return 0;

 case WM_DESTROY:
  PostQuitMessage( 0 );
  return 0;

 } // end of switch( iMessage )

 return DefWindowProc( hWnd, iMessage, wParam, lParam );
}