DtSearchMessages(library call) DtSearchMessages(library call)
NAME
DtSearchMessages -- Access and manipulate messages on the DtSearch MessageList
SYNOPSIS
#include <Dt/Search.h>
int DtSearchHasMessages(
,
void DtSearchAddMessage(
const char *msg,
char *DtSearchGetMessages(
,
void DtSearchFreeMessages(
);
DESCRIPTION
The DtSearch online search engine may assemble detailed user messages to explain various errors and failures. These messages are designed
to provide a user with enough information to correct the error. Often more than one message is assembled onto the MessageList as the
result of a single API call. The calling code may also append messages to the MessageList prior to display to the user. All messages
remain on the MessageList and new messages are appended to the preexisting list until the list is specifically freed by the calling code.
DtSearchHasMessages returns zero if the MessageList is empty, and returns nonzero if there are any information or error messages currently
on the MessageList.
DtSearchAddMessage appends a message to the end of the MessageList. A message is defined as a zero-terminated C string.
DtSearchGetMessages returns a static text buffer containing all current messages on the MessageList. The messages are returned as a single
flat, zero-terminated C string, with two ASCII linefeed characters between messages (giving the appearance of a blank line between mes-
sages). It is expected that the calling code will display the text in a message dialog box or its equivalent. The returned buffer address
is valid until the next call. If the MessageList is currently empty, this function returns a pointer to an empty string.
DtSearchFreeMessages clears all messages on the MessageList. It is usually called after the user has dismissed a dialog box displaying the
current messages.
SEE ALSO
DtSrAPI(3)
DtSearchMessages(library call)