func (pdf *PDF) GetInfoAttr(infoType InfoType) (string, error) {
cvalue := C.HPDF_GetInfoAttr(pdf.doc, C.HPDF_InfoType(infoType))
if cvalue != nil {
defer C.free(unsafe.Pointer(cvalue))
return C.GoString(cvalue), nil
} else {
return "", pdf.GetLastError()
}
}
func (pdf *PDF) SetInfoDateAttr(infoType InfoType, datetime time.Time) error {
cdate := timeToHPDFDate(datetime)
C.HPDF_SetInfoDateAttr(pdf.doc, C.HPDF_InfoType(infoType), cdate)
return pdf.GetLastError()
}
func (pdf *PDF) SetInfoAttr(infoType InfoType, value string) error {
cvalue := C.CString(value)
defer C.free(unsafe.Pointer(cvalue))
C.HPDF_SetInfoAttr(pdf.doc, C.HPDF_InfoType(infoType), cvalue)
return pdf.GetLastError()
}