Unicode C

Get the Content-Type of a Related Item

Demonstrates the Chilkat Email.GetRelatedContentType method, which returns the Content-Type of the Nth related content item in an email. The index is zero-based. This example adds a related style sheet and reads its content type.

Background: Each related item declares a Content-Type — image/png for an inline image, text/css for a style sheet, and so on — that tells the rendering client how to use it. Reading the content type lets a program enumerate a message's embedded resources and act on them by kind, for example collecting every inline image while ignoring the style sheets.

Chilkat Unicode C Downloads

Download Chilkat for Unicode C

Unicode C

#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    HCkEmailW email;
    const wchar_t *ct;

    //  Demonstrates the GetRelatedContentType method, which returns the Content-Type of the Nth
    //  related content item in an email.  The index is zero-based.

    email = CkEmailW_Create();
    CkEmailW_putSubject(email,L"GetRelatedContentType example");

    //  The HTML references the style sheet by name (Content-Location).
    CkEmailW_SetHtmlBody(email,L"<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>");

    //  Add the related style sheet (index 0).
    CkEmailW_AddRelatedString2(email,L"styles.css",L"body { color: navy; }",L"utf-8");

    //  Read the Content-Type of the first related item (index 0).
    ct = CkEmailW_getRelatedContentType(email,0);
    wprintf(L"Related item 0 Content-Type: %s\n",ct);


    CkEmailW_Dispose(email);

    }