PowerBuilder

Get a Header Field of a Related Item

Demonstrates the Chilkat Email.GetRelatedHeader method, which returns the value of a named header field of a related item. The first argument is the zero-based related-item index and the second is the MIME header-field name. This example reads the Content-Type header of a related style sheet.

Background: Each related item is a MIME part with its own header block. Where GetRelatedAttr extracts a single named parameter from a header, GetRelatedHeader returns the entire value of a header field — for example the full Content-Type or Content-Location line — which is handy for inspecting exactly how an embedded resource is described.

Chilkat PowerBuilder Downloads

Download Chilkat for PowerBuilder

PowerBuilder

integer li_rc
oleobject loo_Email
string ls_Ct

//  Demonstrates the GetRelatedHeader method, which returns the value of a header field (by
//  name) of a related item.  The first argument is the zero-based related-item index and the
//  second is the MIME header-field name.

loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")
if li_rc < 0 then
    destroy loo_Email
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Email.Subject = "GetRelatedHeader example"

//  Set an HTML body and add a related style sheet (index 0).
loo_Email.SetHtmlBody("<html><head><link rel=~"stylesheet~" href=~"styles.css~"/></head><body>Styled.</body></html>")
loo_Email.AddRelatedString2("styles.css","body { color: navy; }","utf-8")

//  Get the Content-Type header of the first related item (index 0).
ls_Ct = loo_Email.GetRelatedHeader(0,"Content-Type")
Write-Debug "Related item 0 Content-Type: " + ls_Ct


destroy loo_Email