Unicode C
Unicode C
Date/Time Expires Within N Seconds/Minutes/Hours/Days
Demonstrates the how to tell if a date/time is within N seconds, minutes, hours, or days of the current system time.Chilkat Unicode C Downloads
#include <C_CkDateTimeW.h>
void ChilkatSample(void)
{
HCkDateTimeW dt;
BOOL b;
dt = CkDateTimeW_Create();
// Set to the current system date/time.
CkDateTimeW_SetFromCurrentSystemTime(dt);
wprintf(L"Now: %s\n",CkDateTimeW_getAsTimestamp(dt,TRUE));
// Add 10 minutes, making the date 10 minutes in the future.
CkDateTimeW_AddSeconds(dt,600);
wprintf(L"10 minutes from now: %s\n",CkDateTimeW_getAsTimestamp(dt,TRUE));
// Is the date/time within 10 seconds of expiration (i.e. within 10 seconds of now)?
b = CkDateTimeW_ExpiresWithin(dt,10,L"seconds");
wprintf(L"Expires within 10 seconds: %d\n",b);
// Does the date/time expire within 5 minutes?
b = CkDateTimeW_ExpiresWithin(dt,5,L"minutes");
wprintf(L"Expires within 5 minutes: %d\n",b);
// Does the date/time expire within 15 minutes?
b = CkDateTimeW_ExpiresWithin(dt,15,L"minutes");
wprintf(L"Expires within 15 minutes: %d\n",b);
// Does the date/time expire within 1 hour?
b = CkDateTimeW_ExpiresWithin(dt,1,L"hour");
wprintf(L"Expires within 1 hour: %d\n",b);
// Does the date/time expire within 1 day?
b = CkDateTimeW_ExpiresWithin(dt,1,L"day");
wprintf(L"Expires within 1 day: %d\n",b);
// Output:
// Now: 2017-05-05T23:48:00-0500
// 10 minutes from now: 2017-05-05T23:58:00-0500
// Expires within 10 seconds: False
// Expires within 5 minutes: False
// Expires within 15 minutes: True
// Expires within 1 hour: True
// Expires within 1 day: True
CkDateTimeW_Dispose(dt);
}