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(Unicode C) Controlling Charset of HTML EmailThis example demonstrates how to change the charset of an HTML email by setting the Charset property.
#include <C_CkEmailW.h> #include <C_CkStringBuilderW.h> #include <C_CkMailManW.h> void ChilkatSample(void) { BOOL success; HCkEmailW email; HCkStringBuilderW sbHtml; HCkMailManW mailman; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. email = CkEmailW_Create(); // Tell Chilkat you want the email to be utf-8. CkEmailW_putCharset(email,L"utf-8"); CkEmailW_putFrom(email,L"somebody@gmail.com"); CkEmailW_AddTo(email,L"Joe",L"joe_somebody@gmail.com"); CkEmailW_putSubject(email,L"This is a test"); // Load a utf-8 HTML file that will be the body of this email. // The HTML contains this line to specify the charset: // // <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> // // The sample HTML is available here: https://chilkatsoft.com/exampleData/sample_utf8.html // sbHtml = CkStringBuilderW_Create(); CkStringBuilderW_LoadFile(sbHtml,L"qa_data/html/sample_utf8.html",L"utf-8"); CkEmailW_SetHtmlBody(email,CkStringBuilderW_getAsString(sbHtml)); // If this email was sent as-is, it would look like this: mailman = CkMailManW_Create(); wprintf(L"%s\n",CkMailManW_renderToMime(mailman,email)); // The MIME that would be sent is this: // MIME-Version: 1.0 // Date: Wed, 08 Mar 2017 09:39:06 -0600 // Message-ID: <53930EB7EFA37B121FB2CC0E57E9FA4D02AD86A3@CHILKAT13> // Content-Type: text/html; charset=utf-8 // Content-Transfer-Encoding: quoted-printable // X-Priority: 3 (Normal) // From: somebody@gmail.com // To: Joe <joe_somebody@gmail.com> // Subject: This is a test // // <html> // <head> // <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" /> // </head> // <body> // <p>=C3=A0=C3=A8=C3=AC=C3=B2=C3=B9=C3=80=C3=88=C3=8C=C3=92=C3=99=C3=A1=C3=A9= // =C3=AD=C3=B3=C3=BA=C3=BD=C3=81=C3=89=C3=8D=C3=93=C3=9A=C3=9D=C3=A2=C3=AA=C3= // =AE=C3=B4=C3=BB=C3=82=C3=8A=C3=8E=C3=94=C3=9B=C3=A3=C3=B1=C3=B5=C3=83=C3=91= // =C3=95=C3=A4=C3=AB=C3=AF=C3=B6=C3=BC=C3=BF=C3=84=C3=8B=C3=8F=C3=96=C3=9C=C5= // =B8=C3=A5=C3=85</p> // </body> // </html> // // ----------------------------------------- // Let's say we want to send iso-8859-1 instead... // Just set the email object's Charset property, like this: CkEmailW_putCharset(email,L"iso-8859-1"); // Now see what would be sent: wprintf(L"%s\n",CkMailManW_renderToMime(mailman,email)); // MIME-Version: 1.0 // Date: Wed, 08 Mar 2017 09:45:03 -0600 // Message-ID: <DD08A5B56532AF11505ACF21A1338E0A3024D34A@CHILKAT13> // Content-Type: text/html; charset=iso-8859-1 // Content-Transfer-Encoding: quoted-printable // X-Priority: 3 (Normal) // From: somebody@gmail.com // To: Joe <joe_somebody@gmail.com> // Subject: This is a test // // <html> // <head><META http-equiv=3D"Content-Type" content=3D"text/html;charset=3Diso-= // 8859-1"> // // </head> // <body> // <p>=E0=E8=EC=F2=F9=C0=C8=CC=D2=D9=E1=E9=ED=F3=FA=FD=C1=C9=CD=D3=DA=DD=E2=EA= // =EE=F4=FB=C2=CA=CE=D4=DB=E3=F1=F5=C3=D1=D5=E4=EB=EF=F6=FC=FF=C4=CB=CF=D6=DC= // =9F=E5=C5</p> // </body> // </html> // ----------------------------------------- // Let's say we don't want quoted-printable, but instead want 8bit. // The AddHeaderField method replaces the header field if it already exists. // Do this to get 8bit encoding instead of quoted-printable. CkEmailW_AddHeaderField(email,L"Content-Transfer-Encoding",L"8bit"); // Now see what would be sent: // (Note: Because RenderToMime returns a string, it generally not possible to render MIME to a string // IF the MIME contains binary data and uses the 8bit encoding (for example, if a JPEG image was attached). // However, the email would still be sent correctly.) wprintf(L"%s\n",CkMailManW_renderToMime(mailman,email)); // MIME-Version: 1.0 // Date: Wed, 08 Mar 2017 09:51:33 -0600 // Message-ID: <F38B4A8D33C111057E901782305E01AC5BE31B98@CHILKAT13> // Content-Type: text/html; charset=iso-8859-1 // Content-Transfer-Encoding: 8bit // X-Priority: 3 (Normal) // From: somebody@gmail.com // To: Joe <joe_somebody@gmail.com> // Subject: This is a test // // <html> // <head><META http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> // // </head> // <body> // <p>àèìòùÀÈÌÒÙáéíóúýÁÉÍÓÚÝâêîôûÂÊÎÔÛãñõÃÑÕäëïöüÿÄËÏÖÜŸåÅ</p> // </body> // </html> // CkEmailW_Dispose(email); CkStringBuilderW_Dispose(sbHtml); CkMailManW_Dispose(mailman); } |
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