【求助】c++ Windows.h 自学中。。。

上面那坨是代码，粘过来没了缩进更看不清了不好意思orz
求解orz

为什么源代码发不上的。。。好歹让我问下啊orz

#include<windows.h>
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance ,HINSTANCE hPrevInstance,LPSTR lpcmdLine,int nCmdShow)
{
static TCHAR szAppName[ ] = TEXT( " HelloWorld " ) ;
static TCHAR szClassName[] = TEXT( " HelloWorldClass " );
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
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 = szClassName;
if ( ! RegisterClass ( & wndclass ) )
{
MessageBox ( NULL , TEXT ( " This programrequires Windows NT !") , szAppName , MB_ICONERROR ) ;
return 0 ;
}
hwnd = CreateWindow (
szClassName ,
TEXT("My Hello World to Windows Program") ,
WS_OVERLAPPEDWINDOW ,
CW_USEDEFAULT ,
CW_USEDEFAULT ,
CW_USEDEFAULT ,
CW_USEDEFAULT ,
NULL ,
NULL ,
hInstance ,
NULL ) ;
ShowWindow (hwnd , nCmdShow ) ;
UpdateWindow ( hwnd ) ;
while ( GetMessage ( & msg , NULL , 0 , 0 ) )
{
TranslateMessage ( &msg ) ;
DispatchMessage ( &msg) ;
}
return msg. wParam ;
}

LRESULT CALLBACK WndProc ( HWND hwnd , UINT message ,WPARAM wParam , LPARAM lParam )
{
HDC hdc ;
PAINTSTRUCT ps ;
RECT rect ;
switch ( message )
{
case WM_CREATE :MessageBox( NULL , " HelloWorld!" , "Hello World " , MB_OK) ;
MessageBeep ( MB_OK ) ;
return 0 ;
case WM_PAINT:hdc = BeginPaint ( hwnd , &ps ) ;
GetClientRect ( hwnd , &rect ) ;
DrawText ( hdc ,
TEXT ("Hello , Windows !") ,
-1 ,
&rect ,
DT_SINGLELINE | DT_CENTER| DT_VCENTER) ;
EndPaint ( hwnd , &ps ) ;
return 0 ;
case WM_DESTROY :
PostQuitMessage ( 0 ) ;
return 0 ;
}
return DefWindowProc ( hwnd , message , wParam , lParam ) ;
}

求不要沉。。。