Re: How to send email from C++ code - C / C++ / MFC Discussion Boards

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Re: Starting thread in OnInitDialog()

palbano10-Feb-03 8:55

palbano

10-Feb-03 8:55

One problem you should be seeing is that the thread function is not a member function of CGrapDlg so you can't call GetDlgItem.

Also what Dave has posted regarding the use of MFC objects accross threads is a problem that cannot be ignored. There are Technical Notes on MSDN regarding this problem.

"No matter where you go, there your are..." - Buckaoo Banzi
<pete/>

C++ and Excel via ODBC

svinn10-Feb-03 7:56

svinn

10-Feb-03 7:56

How change a color of the cell and color of the text in Excel table via OBDC.

CDatabase database;
...
database.OpenEx(sSql,CDatabase::noOdbcDialog)
...
sSql = "CREATE TABLE Station (Train CHAR,Times CHAR,Way NUMBER,Comment CHAR)";
database.ExecuteSQL(sSql);
...
sSql.Format("INSERT INTO Station (Train,Times,Way,Comment) VALUES ('%s','%s',%d,'%s')",sTrain,sTime,iWay,sComment);
database.ExecuteSQL(sSql);

I want that color of this record was red.

// Sorry for my Englsih

Re: C++ and Excel via ODBC

Joshua Nussbaum10-Feb-03 8:40

Joshua Nussbaum

10-Feb-03 8:40

Maybe with ADOX? otherwise, why not use the Excel COM objects?

Re: C++ and Excel via ODBC

svinn10-Feb-03 8:45

svinn

10-Feb-03 8:45

It is good. But can you write a simple example how to use it? Or tell me how to do it? Or where can i read this in the internet?

Re: C++ and Excel via ODBC

Joshua Nussbaum12-Feb-03 10:23

Joshua Nussbaum

12-Feb-03 10:23

Check out this Knowledge Base article[^]. It describes how to use Excel's COM interfaces from C++.

svinn10-Feb-03 10:19

svinn

10-Feb-03 10:19

How to send email from C++ code

Shay Harel10-Feb-03 7:25

Shay Harel

10-Feb-03 7:25

Hi,

I remember seeing once an articale that showed how you can send email
from a c++ program.

Any help will be appreciated.

Tahnks

Shay

Re: How to send email from C++ code

Chris Meech10-Feb-03 7:38

Chris Meech

10-Feb-03 7:38

For starters try this article, http://www.codeproject.com/internet/zsmtp.asp[^]

From the Internet section on CP, you should be able to find several others.

Chris Meech

"what makes CP different is the people and sense of community, things people will only discover if they join up and join in." Christian Graus Nov 14, 2002.

"AAAAAAAAAHHHHHH!!!!! Those leaks are driving me crazy! How does one finds a memory leak in a garbage collected environment ??! Daniel Turini Nov. 2, 2002.

Re: How to send email from C++ code

Shay Harel10-Feb-03 7:47

Shay Harel

10-Feb-03 7:47

Thank you,
That was what I was looking for
Shay

Maximising SDI window

Justin2310-Feb-03 5:56

Justin23

10-Feb-03 5:56

Hi I'm new to SDI programming so I would need some guidance from you all..

How can I make sure that my window is maximised when I run my application? I keep having to click on the maximise button after I compile and run my project.

Thx Smile | :)

Re: Maximising SDI window

AlexO10-Feb-03 6:41

AlexO

10-Feb-03 6:41

SetWindowPlacement

Re: Maximising SDI window

Rage10-Feb-03 6:45

Rage

10-Feb-03 6:45

In CMainFrame::PreCreateWindow(), put a ShowWindow(SW_SHOWMAXIMIZED);

~RaGE();

automatically refreshing drive views

will138310-Feb-03 5:45

will1383

10-Feb-03 5:45

Ok,

I'm creating a Tree that traverses system drives. Is there a way to automatically refresh removable drives and cdrom drives? Is there a windows message that gets sent out when a new cd or floppy is inserted??

Thanks

Dan Willis

Re: automatically refreshing drive views

olivier10-Feb-03 6:04

olivier

10-Feb-03 6:04

in your mainframe window do :
/////////////////////////////////////////////////////////////////
// OnDeviceChange
/////////////////////////////////////////////////////////////////
#include <dbt.h>

BOOL CMainFrame::OnDeviceChange (UINT nEventType, DWORD dwData)
{
if (nEventType == DBT_DEVICEARRIVAL)
{
DEV_BROADCAST_HDR * pDevBroadcastHdr = (DEV_BROADCAST_HDR*)dwData;
if (pDevBroadcastHdr->dbch_devicetype == DBT_DEVTYP_VOLUME) // Logical Volume
{
DEV_BROADCAST_VOLUME* pDevBroadcastVolume = (DEV_BROADCAST_VOLUME*)pDevBroadcastHdr;

// on cherche la lettre du nouveau disque
if (pDevBroadcastVolume->dbcv_flags & DBTF_MEDIA)
{
char cVolume;
ULONG unitmask = pDevBroadcastVolume->dbcv_unitmask;
for (int i = 0; i < 26; ++i)
{
if (unitmask & 0x1)
break;
unitmask = unitmask >> 1;
}
cVolume = (i + 'A');
}
}
}
if (nEventType == DBT_DEVICEREMOVECOMPLETE)
{
}
return TRUE;
}
=============================
in your mainfrm.h
afx_msg BOOL OnDeviceChange (UINT nEventType, DWORD dwData);

Re: automatically refreshing drive views

olivier10-Feb-03 6:28

olivier

10-Feb-03 6:28

in your message map of your MainFrame add also:

BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd)
//{{AFX_MSG_MAP(CMainFrame)
ON_WM_CREATE()
....
//}}AFX_MSG_MAP
ON_WM_DEVICECHANGE()
_MESSAGE_MAP()

Re: automatically refreshing drive views

will138310-Feb-03 7:21

will1383

10-Feb-03 7:21

That did it.

Thanks alot!

Dan Willis

How to detect that a drive is a DVD ?

olivier10-Feb-03 5:43

olivier

10-Feb-03 5:43

How to detect that a drive is a DVD ?
The function GetDriveType is not helpful
Thanks

Re: How to detect that a drive is a DVD ?

Abbas_Riazi10-Feb-03 9:02

Abbas_Riazi

10-Feb-03 9:02

If you want to detect drive is DVD or CD, first use GetDriveType, then check capacity of disk. CD-ROM takes about 650-700 MB of data. If capacity is more than 700MB, it is a DVD!
A. Riazi

Re: How to detect that a drive is a DVD ?

Mike Nordell10-Feb-03 11:29

Mike Nordell

10-Feb-03 11:29

Search for STORAGE_MEDIA_TYPE. It's an enumeration defined in winioctl.h. I believe this is what you're looking for.

Re: How to detect that a drive is a DVD ?

olivier10-Feb-03 23:07

olivier

10-Feb-03 23:07

thanks, this was a good hint.
I have put the solution on the thread

This is the solution

olivier10-Feb-03 23:06

olivier

10-Feb-03 23:06

<br />
#include <Winioctl.h><br />
BOOL CMainFrame::IsItADvd (char cVolume)<br />
{<br />
 BOOL bResult = FALSE;<br />
 CString sTemp;<br />
 GET_MEDIA_TYPES GetMediaTypes;<br />
 DWORD dwBytesReturned;<br />
<br />
sTemp.Format ("\\\\.\\%c:", cVolume);<br />
 sTemp.MakeUpper ();<br />
 // Open an handle on the device<br />
HANDLE 	hDevice = CreateFile(sTemp,GENERIC_READ, FILE_SHARE_READ,NULL, OPEN_EXISTING, 0, NULL);<br />
<br />
 if (hDevice == INVALID_HANDLE_VALUE)<br />
   return FALSE;<br />
<br />
 // getting dive information<br />
 if (DeviceIoControl(hDevice, IOCTL_STORAGE_GET_MEDIA_TYPES_EX, NULL, 0, (void*)&GetMediaTypes, sizeof (GET_MEDIA_TYPES), &dwBytesReturned, NULL))<br />
		bResult = (GetMediaTypes.DeviceType == FILE_DEVICE_DVD); // this is a DVD<br />
<br />
 // closing handle<br />
  CloseHandle (hDevice);<br />
  return bResult;<br />
}<br />

Math question.. strings and int's..

RobJones10-Feb-03 4:24

RobJones

10-Feb-03 4:24

Hello,
Just wondering if there are any math tricks for doing this.. If not does anyone know the best way of doing this?

Given a CString "123".
I need to add each digit in the string.. The sum of this example would be 6 (1+2+3).

The string will always be at least 1 digit and no more than 3 digits.

Any ideas?
Rob

Re: Math question.. strings and int's..

C^hris L^osinger10-Feb-03 4:27

C^hris L^osinger

10-Feb-03 4:27

for (int i=0; i < str.GetLength(); i++
{
char digit = str.GetAt(i);
sum += (digit - '0');
}

-c

WWT2D?

Fractals

Re: Math question.. strings and int's..

RobJones10-Feb-03 4:55

RobJones

10-Feb-03 4:55

Thanks. Wrote it a little different but you got me on the right track... THANK YOU,
Rob

View large text files.

Mathias S.10-Feb-03 4:13

Mathias S.

10-Feb-03 4:13

I need some tips on what is the best way to fix this.

I need a way to view a log file in my program.
The log file is in standard ASCII text format.
But problem is that the log file can be 2-300 MB big.
And I don't want to load the whole file into memory.
So I can’t use the standard CEdit.

Anyone know if there exists any controller for this?
Maybe an enhanced read-only CEdit controller that supports what I need?
Someone must have needed to do this before.
Or I need to start coding something my self. If so What’s best way to do it ?

Is it to create a new controller inherited from CEdit and only show the first 100 lines and manipulate the scroll bar to fool the user that there are more to show and when user scrolls down read in the next 100 lines (depends on how much was scrolled ofcourse) from the log file and show that? Any ides and tips are appreciated.

/Mathias

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