#include <windows.h>

#include <TChar.h>
#define  CreateWndSty WS_EX_CLIENTEDGE
//宣告回撥函式
LRESULT CALLBACK WndProc(
	         HWND   hwnd,
			 UINT message ,
			 WPARAM wParam,
			 LPARAM lParam );
//主函式
int WINAPI WinMain(
	          HINSTANCE hInstance,
			  HINSTANCE hPreInstance,
			  LPSTR lpCmdLine,
			  int nCmdshow )
{
	
    TCHAR className[]=L"你好";
	TCHAR winName[]=L"大家好！！！";
	WNDCLASSEX 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   = className  ;
	wndclass.cbSize = sizeof( WNDCLASSEX );
	wndclass.hIconSm = NULL;

	if (RegisterClassEx(&wndclass)==NULL){
		MessageBox(NULL,_T("Error111"),_T("Error!!!"),MB_OK); 
		return 0;
	}
    
	HWND hwnd;
	hwnd=CreateWindowEx(CreateWndSty,
		                     className ,
							 winName,
							 WS_OVERLAPPEDWINDOW,
							 100,100,600,400,
							 NULL,NULL,hInstance,NULL);
   
	if (hwnd==NULL){
	    MessageBox(NULL,L"建立主視窗時發生錯誤！",L"錯誤資訊",MB_OK|MB_ICONSTOP);
	    return 0;
    }

	ShowWindow(hwnd,SW_MINIMIZE);
	UpdateWindow(hwnd);
	MSG msg;
	while(GetMessage(&msg,NULL,0,0)){
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return msg.wParam;

}

LRESULT CALLBACK WndProc( HWND hwnd, 
	                     UINT message , 
						 WPARAM wParam, 
						 LPARAM lParam )
{
	switch (message)
	{
	   case WM_LBUTTONDOWN:
		   MessageBox(NULL,_T("ok"),_T("ok!!!"),MB_OK); 
		   break;
	   default:
		   return DefWindowProc(hwnd,message,wParam,lParam);
	}
	return 0;
}