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How about MSDN for starters?
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I've not found any examples in C++, only VB.
Rickard Andersson
Here is my card, contact me later!
UIN: 50302279
Sonork: 37318
Interests: C++, ADO, SQL, Winsock, 0s and 1s
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Try MSDN article Q178749.
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How to determine the count of visible strings in CEdit?
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Get the client rect of the CEdit. Use m_edit.GetDC() to get a DC, then call pDC->GetTextExtent("A") to get the height of a line. Finally, divide the client rect height by the height of a line. Note that there might be a partial line. Don't forget to release the DC.
HPS HwndSpy - GUI developer's aid to visually
locate and inspect windows. For the month of August
only, use coupon code CP-81239 for 30% off.
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And what with line interval? Does pDC->GetTextExtent("A") consider it?
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Are you referring to the spacing between the lines?
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It is all. I have gone to have dinner 
Vitali
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You're not the only one who answers questions.
This is a forum for asking Visual C++ programming questions. If it's not a programming question, don't post it.
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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This is joke. Sometimes all of us (in this serisneous VC++ forum )
have neend in smile.
With friendly cheers,
Vitali
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when i store ole object found that the save file grow biger and biger!
Under MFC(DOC/VIEW) STRUCT , "CreateCloneFrom" function make it!
How Can I deal with!
give some code !
ZHANGYIFEI
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zhangyifei wrote:
when i store ole object found that the save file grow biger and biger!
I assume you're talking about an OLE compound file. If so, this is normal behaviour. Nothing gets deleted from these files. The data gets appended to the data stream and the stream is updated to use this new data. The only way to prevent this happening is to read the data from the file, and write it to a new file.
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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can you give me a demo ?thanks!
ZHANGYIFEI
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i have to parse the contents of an email..that is., get the from and to address, subject and the contents of the mailmessage.in what format should i store my mail mesage??in the rich text format or the message format?which is the best possible way for it??
after storing it.,how should i use the MAPIReadmail,MAPIFindnext functons to retrieve the mail contents??whatis the work of the message identifier in this process?
kindly help me in doing this!!
ranjani
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Hi,
storing format is on your choise.
corresponding question 2,. - use following tecknique:
<br />
if( mapi.Logon( _T(""), _T("") ) )<br />
{<br />
while (mapi.FindNext (MAPI_LONG_MSGID, Msg_ID) == TRUE)<br />
{<br />
...<br />
bRes = mapi.ReadMail (Msg_ID, MAPI_PEEK, ...);<br />
...<br />
}<br />
}<br />
mapi.Logoff();<br />
}<br />
Vitali
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hi
thanxx for ur reply!
what is bRes varable in the above mentioned code of urs?
what is Msg_ID? what is the parameter to be passed insteadof Msg_ID in the function call?
how do i know the message id of a certain message?are there any special functoins to know it??
ranjani
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Read what MSDN say:
1)message id
>>An ASCII string used by Simple MAPI to access an incoming message. A >>message identifier is valid only during the session in which it is assigned >>a value by the MAPIFindNext function, and does not correspond to the >>message reference used by CMC. For more information, see Receiving a >>Message: Simple MAPI Sample.
2)
ULONG FAR PASCAL MAPIFindNext(
LHANDLE lhSession,
ULONG ulUIParam,
LPTSTR lpszMessageType,
LPTSTR lpszSeedMessageID,
FLAGS flFlags,
ULONG ulReserved,
LPTSTR lpszMessageID
)
...MessageID Pointer to a string containing the message identifier seed for the request. If the lpszSeedMessageID parameter is NULL or points to an empty string, MAPIFindNext retrieves the first message that matches the type specified in the lpszMessageType parameter.
I think this is clear
Vitali
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thank u so much..
but sorry again!!
what do u mean by 'a session assigned'?
and what is a 'message type'?
ranjani
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following is the code i got from msdn for parsing mails
i have doubts in it like..
in the readnextmsg function what is ..c:\\pst\\myprofile.pro???
what shud i use in my program instead of that..and in the findnext function..whats OL??what are the parameters to be passed to the functions...so that i can autmate the process of receiving mails in my inbox!
thank u
here's the code
#include<stdio.h>
#include<stdlib.h>
#include<iostream.h>
#include<conio.h>
#include<windows.h>
#include<mapi.h>
//assumption::character interface being used.
//the Simple MAPI functions for reading messages can't
//log on implicitly and require an explicit session handle.
/*the client application defines needed variables and
logs on to get a session handle/*
ULONG ReadNextUnreadMsg()
{
ULONG err;
LHANDLE lhSession; // Need a session for MAPIFindNext.
CHAR rgchMsgID[513]; // Message IDs should be >= 512 CHARs + a null.
MapiMessage *lpMessage; // Used to get a message back from MAPIReadmail
int i, // Ubiquitous loop counter.
totalLength; // Number of characters printed on a line.
err = MAPILogon(0L, // ulUIParam; 0 always valid.
"c:\\pst\\myprofil.pro",// Shouldn't hardcode this.
NULL, // No password needed.
0L, // Use shared session.
0L, // Reserved; must be 0.
&lhSession); // Session handle.
if (err != SUCCESS_SUCCESS) // Make sure MAPILogon succeeded.
{
printf("Error: could not log on\r\n");
return(err);
}
//next..the client searches for the first unread message in the //default folder in the store - probably the user's Inbox.
//Since there might not be any unread messages in the folder, //the client first tests the return value from the MAPIFindNext
//function against MAPI_E_NO_MESSAGES before checking against //SUCCESS_SUCCESS. If the call is successful, the client will have
///a valid message identifier to use to retrieve the first// unread message
/* */
// find the first unread message
err = MAPIFindNext(lhSession, // explicit session required
0L, // always valid ulUIParam
NULL, // NULL specifies interpersonal messages
NULL, // seed message ID; NULL=get first message
MAPI_LONG_MSGID | // needed for 512 byte rgchMsgID.
MAPI_UNREAD_ONLY, // only get unread messages.
0L, // reserved; must be 0
rgchMsgID);// buffer to get back a message ID.
if (err == MAPI_E_NO_MESSAGES) // make sure a message was found
{
printf("No unread messages.\r\n");
return(err);
}
if (err != SUCCESS_SUCCESS) // make sure MAPIFindNext didn't fail
{
printf("Error while searching for messages\r\n");
return(err);
}
//The client can now be sure it is safe to retrieve the message. //However, it is a good idea to check the return value from
//the MAPIReadMail function. If the call fails, the memory pointed //to by the client's lpMessage pointer will not be accessible by
//the client. The client should not try to display a message at //that location. Note that this example sets the
//MAPI_SUPPRESS_ATTACH flag so the returned message will not
//have any attachments in it and Simple MAPI will not create any //temporary files for them.
// retrieve the message
err = MAPIReadMail(lhSession, // Explicit session required.
0L, // Always valid ulUIParam.
rgchMsgID, // The message found by MAPIFindNext.
MAPI_SUPPRESS_ATTACH, // TO DO: handle attachments.
0L, // Reserved; must be 0.
&lpMessage); // Location of the returned message.
if(err != SUCCESS_SUCCESS) // Make sure MAPIReadMail succeeded.
{
printf("Error retrieving message %s\r\n",rgchMsgID);
return(err);
}
//Now, the client can display the message. As expected, //it begins by displaying the addressing information attached
//to the message before displaying the subject line and message text.// When displaying the addressing information, it is best if you
//can display friendly names. However, since friendly names are
//not always available, you must verify that each recipient //structure's lpszName member points to a valid string,
// and that the string is not a null string.
// Display the sender's name or address; use the friendly name// if it is present.
if((lpMessage->lpOriginator->lpszName != NULL) &&
lpMessage->lpOriginator->lpszName[0] != '\0')
printf("From: %s\r\n",lpMessage->lpOriginator->lpszName);
else
printf("From: %s\r\n",lpMessage->lpOriginator->lpszAddress);
//Displaying the recipients' addresses is complicated by the //need to avoid breaking a recipient's name or address across
//two lines. This code can be further improved by differentiating //between recipients based on their ulRecipClass members so that
//they can be properly displayed as To, CC, or BCC recipients.// As this code shows, handling recipient data can be the most
// complex part of reading a message.// Display the recipients' names or addresses. To Do: enhance
// this code to separate the recipients into lists of MAPI_TO,// MAPI_CC, and MAPI_BCC recipients for separate display.
if(lpMessage->nRecipCount == 0)
printf("Warning: no recipients present for this message\r\n");
else
for(i = 0; i < lpMessage->nRecipCount; i++) // For each recipient...
{
// This code uses lstrlen to calculate the length of strings and
// to validate that the strings have some content, since the
// length is needed anyway. This avoids the more verbose checks
// as were done for lpMessage->lpOriginator->lpszName earlier.
// lpszT references a name or address; simplifies later code.
// length is the length of the name or address.
LPSTR lpszT = lpMessage->lpRecips[i]->lpszName;
int length = lstrlen(lpszT);
if(i == 0) // First recipient; need to do some initialization.
{
printf("Recipients:");
totalLength = 11; // since strlen("Recipients:") = 11.
}
// Decide whether to use the friendly name or the address.
if(length == 0)
length = lstrlen(lpszT=lpMessage->lpRecips[i]->lpszAddress);
// Verify that the line has room for this name or address. If
// not, print a CR LF pair to go to the next line.
if(totalLength + length + 1 > LINE_WIDTH)
{
printf("\r\n");
totalLength = 0;
}
printf(" %s",lpszT); // Finally, print the name or address.
totalLength += length + 1;// Maintain the line length.
// If there are more addresses, separate them with semicolons.
if(i < (lpMessage->nRecipCount - 1))
{
printf(";");
totalLength++;
}
}
//Now, the client displays the subject line and message text if //they are present. Note that the message text can be printed
//with a simple call to the C library function printf. Since //the message was read with the MAPI_SUPPRESS_ATTACH flag set,
//there will be no attachments in it.// Display the subject and message body. Not printing anything
//for the subject is fine, but something should always be //printed for the message body since it is the last thing
//that this function displays.
if(lpMessage->lpszSubject != NULL && // Standard validity check
lpMessage->lpszSubject[0] != '\0')
printf("Subject: %s\r\n",lpMessage->lpszSubject);
if(lpMessage->lpszNoteText != NULL && // Standard validity check
lpMessage->lpszNoteText[0] != '\0')
printf("Message Text:\r\n%s",lpMessage->lpszNoteText;
else
printf("No message text.\r\n");
//Finally, the client releases the memory that the MAPIReadMail //function allocated for the message, closes the session,
//and returns a successful return value.
MAPIFreeBuffer(lpMessage);
MAPILogoff(lhSession, // The session.
0L, // 0 always valid for ulUIParam.
0L, // No logoff flags.
0L); // Reserved; must be 0.
return SUCCESS_SUCCESS; // Inform the caller of our success.
} // End of ReadNextUnreadMsg
ranjani
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ranjjj wrote:
in the readnextmsg function what is ..c:\\pst\\myprofile.pro???
The second parameter to MAPILogon() is a pointer to a null-terminated profile name string, in this case "c:\\pst\\myprofile.pro". Notice the comment that warns against hard-coding the value!!
ranjjj wrote:
and in the findnext function..whats OL??
It's one of the parameters. In this case, it's a 0 (zero) followed by an 'L' for long.
ranjjj wrote:
what are the parameters to be passed to the functions
MSDN lays all of this out in detail. It's best to not grab a bunch of code and try to use it (as is). From personal experience, take one statement at a time, type it in manually so that you have a FULL understanding of exactly what is happening. Copying and pasting code, especially as a beginner, will be your ultimate demise.
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what is "a pointer to a null terminated profile namestring"?
what profile do u mean here?
what should i use in my program instead of this!!
ranjani
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ranjjj wrote:
i have to parse the contents of an email..that is., get the from and to address, subject and the contents of the mailmessage.
These are in standard locations in the message's header.
ranjjj wrote:
in what format should i store my mail mesage??in the rich text format or the message format?which is the best possible way for it??
That depends on what you're going to do with it.
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i have to parse the contents of the mail message!!what format is the best to choose for this purpose??
what is message identifier?whats the work of Msg_ID in this?
ranjani
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