(Unicode C++) Set the Email Date Header to the Current System Date/Time

Demonstrates how to set the Date header field of an email to the computer's current date/time. Note: When an email object is instantiated, the Date header field is automatically added and initialized to the current system date/time. The need to explicitly set the Date header could arise when loading an email from a .eml.

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#include <CkEmailW.h>
#include <CkDateTimeW.h>

void ChilkatSample(void)
    {
    CkEmailW email;

    // At this point, a new email object has been instantiated, and it
    // already has a Date header field containing the current date/time.
    wprintf(L"Date: %s\n",email.emailDateStr());

    // We can also get the Date header like this:
    wprintf(L"Date: %s\n",email.getHeaderField(L"Date"));

    // Load a .eml into the email object:
    bool success = email.LoadEml(L"myEmlFiles/someEmail.eml");
    if (success != true) {
        wprintf(L"%s\n",email.lastErrorText());
        return;
    }

    // Show the Date that was in the .eml
    wprintf(L"Date: %s\n",email.emailDateStr());

    // Now the Date header contains whatever was in the .eml
    // Let's update it to the current system date/time..

    CkDateTimeW dateTime;

    dateTime.SetFromCurrentSystemTime();

    success = email.SetDt(dateTime);
    if (success != true) {
        wprintf(L"%s\n",email.lastErrorText());
        return;
    }

    // Now show that the Date is the current system time:
    wprintf(L"Date: %s\n",email.emailDateStr());
    wprintf(L"Date: %s\n",email.getHeaderField(L"Date"));
    }