Write Your Own Time Client

Create a Project (Application) in Visual C++ (we have used MSVC 4.0)
The files in the project

• a1.cpp
• wsock32.lib

#include <windows.h>
#include <stdio.h>
void abc(char *p)
{
        FILE *fp=fopen("z.txt","a+");
	fprintf(fp,"%s\n",p);
	fclose(fp);
}

WNDCLASS a;HWND b;MSG c;char aa[200];SOCKET s;struct hostent h;
WSADATA ws;DWORD e;int ii,dw;char bb[100];struct sockaddr_in sa;

long _stdcall zzz (HWND,UINT,WPARAM,LPARAM);

int _stdcall WinMain(HINSTANCE i,HINSTANCE j,char *k,int l)
{
	a.lpszClassName="a1";
	a.hInstance=i;
	a.lpfnWndProc=zzz;
	a.hbrBackground=GetStockObject(WHITE_BRUSH);
	RegisterClass(&a);
	b=CreateWindow("a1","time client",WS_OVERLAPPEDWINDOW,1,1,10,20,0,0,i,0);
	ShowWindow(b,3);
	while ( GetMessage(&c,0,0,0) )
		DispatchMessage(&c);
	return 1;
}

long _stdcall zzz (HWND w,UINT x,WPARAM y,LPARAM z)
{
if ( x == WM_LBUTTONDOWN)
{	
	e=WSAStartup(0x0101,&ws);
	sprintf(aa,"e = %ld",e);
	abc(aa);
	s = socket(PF_INET,SOCK_DGRAM,0);
	sprintf(aa,"s = %ld",s);
	abc(aa);
	sa.sin_family=AF_INET;
        sa.sin_addr.s_addr = inet_addr("140.252.1.32");
	sa.sin_port=htons(13);
	strcpy (bb,"hello how are you");
	e=sendto(s,bb,100,0,(struct sockaddr *)&sa,sizeof(sa));
	sprintf(aa,"SendTo %ld",e);
	int dw = sizeof(sa);
	recvfrom(s,bb,100,0,(sockaddr *)&sa,&dw);
	MessageBox(0,bb,"data from server",0);
	MessageBox(0,"hi","hi",0);
}

if ( x == WM_DESTROY)
	PostQuitMessage(0);
return DefWindowProc(w,x,y,z);
}

Move back to the Vijay Mukhi's Technology Cornucopia Page to learn more about the other new Internet Technologies.