retreive a date from a ADO database - C / C++ / MFC Discussion Boards

BSTR to char *

Anonymous20-Feb-03 0:47

Anonymous

20-Feb-03 0:47

How can i convert a string represented by BSTR to char * ?

Re: BSTR to char *

vikramlinux20-Feb-03 0:57

vikramlinux

20-Feb-03 0:57

Just check out with W2A() ...

Re: BSTR to char *

João Paulo Figueira20-Feb-03 1:24

João Paulo Figueira

20-Feb-03 1:24

There are a number of excellent articles here on CP on this issue. Try this one: http://www.codeproject.com/string/CPPStringGuide1.asp[^]

hyperterminal part2

Sunnygirl20-Feb-03 0:32

Sunnygirl

20-Feb-03 0:32

hello @all,

a few days ago, i asked:

i would like to build a hyperterminal into a mfc program (after i pressed a button, the hyperterminal is to appear).

how can that be done?

i got the answer:

::ShellExecute(0,0,"hypertrm.exe",0,0,SW_SHOW);<br />

it functions perfectly (special thanks to M A V)! Big Grin | :-D

now, when the hyperterminal starts, i must make a few settings (select the com, give a name, baudrate and so on).

is there a possibility to load an old "test.ht"? i don´t want to make any settings at the beginning of the hyperterminal.

how can that be done?

thank you very much
sunny

Re: hyperterminal part2

Roger Allen20-Feb-03 1:03

Roger Allen

20-Feb-03 1:03

Pass test.ht on the command line

::ShellExecute(0,0,"hypertrm.exe", "test.ht",0,SW_SHOW);

you may need to pass the full path to the test.ht file.

Roger Allen
Sonork 100.10016

Were you different as a kid? Did you ever say "Ooohhh, shiny red" even once? - Paul Watson 11-February-2003

Re: hyperterminal part2

Sunnygirl20-Feb-03 1:21

Sunnygirl

20-Feb-03 1:21

thank you for reply, it functions perfectly. Rose | [Rose]

i hope the last question to the hyperterminal:

is there a possibility that the hyperterminal window has full screen width?

thank you very much
sunny

Re: hyperterminal part2

Sunnygirl20-Feb-03 1:28

Sunnygirl

20-Feb-03 1:28

thank you and i think i found it:

i use SW_SHOWMAXIMIZED to get the hyperterminal window has full screen width
and i think it works.

thank you very much, Rose | [Rose]

sunny

retreive a date from a ADO database

Willem B20-Feb-03 0:06

Willem B

20-Feb-03 0:06

hi,

i'm using ado to connect to my database. now i want to retreive a date from the _RecordsetPtr. how do i do this? I also want to do this with a Currency...

my code:

<br />
COleDateTime	Date;<br />
Date = (????) pRecordset->Fields->GetItem("Date")->Value;<br />

[]D [] []D []

Re: retreive a date from a ADO database

Michael P Butler20-Feb-03 0:28

Michael P Butler

20-Feb-03 0:28

Personally, I use the function VariantTimeToSystemTime to convert the returned VARIANT_T into a SYSTEMTIME structure which can then be used by COleDateTime.

Michael

Wonder Woman, Wonder Woman.
All the world's waiting for you,
and the power you possess.

In your satin tights,
Fighting for your rights
And the old Red, White and Blue.

Re: retreive a date from a ADO database

Willem B20-Feb-03 0:59

Willem B

20-Feb-03 0:59

this might sound stupid, but it doesn't seem to work...

my code:

<br />
_RecordsetPtr pRecordset;<br />
<br />
LPSYSTEMTIME time;<br />
VariantTimeToSystemTime((double)pRecordset->Fields->GetItem("Datum")->Value, time);<br />

It crashes....

[]D [] []D []

Re: retreive a date from a ADO database

Steve S20-Feb-03 1:31

Steve S

20-Feb-03 1:31

That will be because "time" points somewhere invalid/undefined.
Try

SYSTEMTIME time;
VariantTimeToSystemTime((double)pRecordset->Fields->GetItem("Datum")->Value,&time);

That will work, unless the date/time stored is NULL.

Steve S
[This signature space available for rent]

Re: retreive a date from a ADO database

Willem B20-Feb-03 1:30

Willem B

20-Feb-03 1:30

I got another solution:

<br />
_RecordsetPtr pRecordset;<br />
<br />
COleDateTime date(pRecordset->Fields->GetItem("Datum")->Value);<br />

This works fine...

Thanks for your help,

Willem

[]D [] []D []

Re: retreive a date from a ADO database

João Paulo Figueira20-Feb-03 1:29

João Paulo Figueira

20-Feb-03 1:29

You can build a COleDateTime from a _variant_t, the type that is returned from pRecordset->Fields->GetItem("Date")->Value. So, your code could look like:

COleDateTime Date(pRecordset->Fields->GetItem("Date")->Value);

Re: retreive a date from a ADO database

Willem B20-Feb-03 1:31

Willem B

20-Feb-03 1:31

lol,

i just found that solution, look at the previous post... Big Grin | :-D

thanks anyways...

willem

[]D [] []D []

resizing a view

ROK_RShadow19-Feb-03 23:57

ROK_RShadow

19-Feb-03 23:57

How would one resize a CView derived view based on a LPRECT structure? I have tried using SetWindowPos() but with no luck.

Any help would be appreciated.

Thank you.

Re: resizing a view

Neville Franks20-Feb-03 0:08

Neville Franks

20-Feb-03 0:08

You need to resize the frame window that the view is inside.

Neville Franks, Author of ED for Windows. www.getsoft.com
Make money with our new Affilate program

Re: resizing a view

ROK_RShadow20-Feb-03 2:08

ROK_RShadow

20-Feb-03 2:08

can you eloborate with some sample code. I was under the impression that I needed to resize the Frame window as well I tried to do
SetWindowPos(((CMainFrame*)AfxGetMainWnd()), 0, 0, 50, 50, NULL) to see if it worked.. but that didn't work.. I also tried SetWindowPos(GetParent()....) but that didn't work either.

Re: resizing a view

Neville Franks20-Feb-03 2:43

Neville Franks

20-Feb-03 2:43

To resize the view I'd try:

GetParentFrame()->SetWindowPos( &wndTop, 0, 0, 100, 100, SWP_NOACTIVATE | SWP_NOMOVE );

from within a derived CView class function. ie. 'this' = your view.

or use:

GetMyView()->GetParentFrame()->SetWindowPos( ... )

from code outside of the view.

Of course the parent frame needs to be in its restored (normal) size, not maximized for this to work.

Neville Franks, Author of ED for Windows. www.getsoft.com
Make money with our new Affilate program

MBCS: get last char

peterchen19-Feb-03 23:47

peterchen

19-Feb-03 23:47

I'm a bit multibyte challenged -
I want to get the last char of a potential multibyte CString / LPCTSTR, specifically, check if it's a slash or backslash.

As far as I understand it, just using str[ str.GetLength()-1 ] could give me the second char of a multibyte sequence, which sounds bad.

So many people long for eternity that don't know what to do on a rainy sunday afternoon.
[sighist] | [Agile Programming] [doxygen]
If you look for evil in me you will find it whether it's there or not.

Re: MBCS: get last char

vikramlinux20-Feb-03 0:03

vikramlinux

20-Feb-03 0:03

Hi Suppose take following example ..
you can not say that
LPCTSTR str=_T("Test\");
You have to write
LPCTSTR str=_T("Test\\");
Here While considering the string "Test\\". it ignore the Last characher as it is from escape seqnence..I meant it has t0. And the results are correct.
ch=str[strlen(str)-1];

Re: MBCS: get last char

peterchen20-Feb-03 1:21

peterchen

20-Feb-03 1:21

Hi,

I didn't refer to escape sequences, but to multibyte charater sets, i.e. those that actually _store_ either one byte, or a lead byte/trail byte pair.

Re: MBCS: get last char

João Paulo Figueira20-Feb-03 1:32

João Paulo Figueira

20-Feb-03 1:32

Absolutely! That's why I've settled with UNICODE, both for embedded and desktop.

Enable / Disable Close button in MDIApplication.

Vikas Mishra19-Feb-03 22:59

Vikas Mishra

19-Feb-03 22:59

Sir,

I have written a code to enable and disable system menu close in
CMDIChindFrame Window in MDI Application. But Disable button is not getting enable in maximized state. If I change the state of MDIChindFrame Window, Close button get enable.

void CMyChindFrame::DisableClose(BOOL bClose)
{
// TODO: Add your specialized creation code here

m_bClose = bClose;

if(m_bClose)
{
CMenu *pSysMenu = GetSystemMenu(FALSE);
ASSERT(pSysMenu != NULL);
VERIFY(pSysMenu->ModifyMenu(SC_CLOSE, MF_BYCOMMAND|MF_GRAYED, SC_CLOSE,
"Close"));
}
else
{
CMenu *pSysMenu = GetSystemMenu(FALSE);
ASSERT(pSysMenu != NULL);
VERIFY(pSysMenu->ModifyMenu(SC_CLOSE, MF_BYCOMMAND|MF_ENABLED, SC_CLOSE,
"Close"));

SendMessage(WM_NCPAINT);
SendMessage(WM_NCACTIVATE,TRUE);
}
}

Make a resident bluescreen

Anonymous19-Feb-03 22:58

Anonymous

19-Feb-03 22:58

How can I make a nice Windows bluescreen which forces the user to reboot the computer (i.e. the bluescreen does not disappear with a [return]).

Nothing should be damaged. The user should just be forced to reboot his computer.

Thx

Device Drivers

vikramlinux19-Feb-03 22:57

vikramlinux

19-Feb-03 22:57

hi,
I am newbie in device driver development.Is it possible to develop a device driver which is application specific? I meant ,suppose I want to use a printer driver only for my application and not the whole operating system.
Is it possible?

help Help Smile | :)

vikram

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.