Re: I guess this is related to NC messages [modified] - C / C++ / MFC Discussion Boards

konstantinos_newbie19-Jun-06 7:09

19-Jun-06 7:09

Dear All,
Thanks for your immediately response. I download the demo and I looked into the MSDN. Could you please advice me where I made the mistake? I attach the I have written. I take an error that CDatabase does not exit or undeclared variable.
Thanks for your time.
Best Regards,
Konstantinos.

void CIsup_semi_1Dlg::OnOK()
{
// TODO: Add extra validation here
CDatabase database; //error
CString testing,final_bytes[1000];
int bytes,final_decimal[1000],cbyte,counter=0;
char buffer[50];
unsigned short hbyte,lbyte,all_bytes[1000];
UpdateData(TRUE);m_input.MakeUpper ();
for (register i=0;i<=m_input.GetLength()-1;i++){
hbyte=m_input.GetAt(i);

Re: Microsoft Access and MFC

David Crow19-Jun-06 2:34

David Crow

19-Jun-06 2:34

See if this article helps at all.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: Microsoft Access and MFC

Hamid_RT19-Jun-06 2:40

Hamid_RT

19-Jun-06 2:40

See Using the CDatabase class to read an Access databases[^] maybe it is some helpful to you

whitesky

Re: Microsoft Access and MFC

konstantinos_newbie19-Jun-06 7:06

konstantinos_newbie

19-Jun-06 7:06

tantDear All,
Thanks for your immediately response. I download the demo and I looked into the MSDN. Could you please advice me where I made the mistake? I attach the I have written. I take an error that CDatabase does not exit or undeclared variable.
Thanks for your time.
Best Regards,
Konstantinos.

void CIsup_semi_1Dlg::OnOK()
{
// TODO: Add extra validation here
CDatabase database;
CString testing,final_bytes[1000];
int bytes,final_decimal[1000],cbyte,counter=0;
char buffer[50];
unsigned short hbyte,lbyte,all_bytes[1000];
UpdateData(TRUE);m_input.MakeUpper ();
for (register i=0;i<=m_input.GetLength()-1;i++){
hbyte=m_input.GetAt(i);

konstantinos

Re: Microsoft Access and MFC

Hamid_RT19-Jun-06 19:20

Hamid_RT

19-Jun-06 19:20

Do you include afxdb.h

whitesky

I guess this is related to NC messages

ROWALI19-Jun-06 1:49

ROWALI

19-Jun-06 1:49

Hello to everyone,

I have developed a SDI MFC application. So what I want is when my mouse is hovering over the application window (any window.. main window, title, views anything), it should work properly, As the mouse moves out of application or windows , it should give some dialog box message that you are out of application area. now if mouse goes out of scope then it should not give so many dialog box messages.. only one is enough so that I wont be wasting time destryoying those messageboxes and go straight to application area. How can this be made?

row

Re: I guess this is related to NC messages

Naveen19-Jun-06 1:55

Naveen

19-Jun-06 1:55

if ur tracking the mouse leaving by checking the NC messages u should have to keep the flags to prevent multiple message box beign displayed...

Else

use TrackMouseEvent API

nave

Re: I guess this is related to NC messages [modified]

ROWALI19-Jun-06 1:58

ROWALI

19-Jun-06 1:58

I think TrackMouseEvent will be tracking only client area of the window .
(also which handler I would be keeping this function)

What I want is if the mouse is moving or clicking or hovering on any portion of the window, its ok, but when it completely goes out of application windows then it should give some kind of notification.

-- modified at 8:04 Monday 19th June, 2006

Re: I guess this is related to NC messages

Nibu babu thomas19-Jun-06 2:05

Nibu babu thomas

19-Jun-06 2:05

Along with what naveen said use WM_MOUSELEAVE.

Nibu thomas
A Developer

Programming tips[^] My site[^]

Re: I guess this is related to NC messages

Naveen19-Jun-06 2:06

Naveen

19-Jun-06 2:06

ROWALI wrote:
I think TrackMouseEvent will be tracking only client area of the window .

no.

check the dwFlags of the TRACKMOUSEEVENT structure.There u can find TME_NONCLIENT

nave

Re: I guess this is related to NC messages

ROWALI19-Jun-06 2:18

ROWALI

19-Jun-06 2:18

Mine is a MFC SDI application.
So where can I keep this function? in Application class's OnIdle even or where?

Re: I guess this is related to NC messages

Anton Mikhalyov19-Jun-06 2:02

Anton Mikhalyov

19-Jun-06 2:02

Use global or class variables to determine if message is already on screen.

I guess I solve your problem? Unsure | :~

Re: I guess this is related to NC messages

ROWALI19-Jun-06 2:05

ROWALI

19-Jun-06 2:05

Can you be more specific?
I dont get it.

time difference

marcoslav19-Jun-06 1:40

marcoslav

19-Jun-06 1:40

How to get time difference in seconds.

CTime t1;
t1.GetCurrentTime();

after some time say after 3 seconds
CTime t2;
t2.GetCurrentTime();

Now I want difference between t2 and t1 in seconds that is 3 seconds;

Marcoslav

Re: time difference

NiceNaidu19-Jun-06 1:45

NiceNaidu

19-Jun-06 1:45

Instead of all the above use

DWORD dwStartTime = GetTickCount();<br />
<br />
//Some Code<br />
<br />
DWORD dwStopTime = GetTickCount();<br />
<br />
Now the Difference ( dwStopTime - dwStartTime )

gives u the required difference in Seconds

Appu..
"If you judge people, you have no time to love them."

Re: time difference

Naveen19-Jun-06 1:50

Naveen

19-Jun-06 1:50

NiceNaiduNow the Difference ( dwStopTime - dwStartTime )

gives u the required difference in Seconds

I think this will return the difference in milli seconds..

nave

Re: time difference

NiceNaidu19-Jun-06 2:05

NiceNaidu

19-Jun-06 2:05

Yes .u r right.
U will get the time difference in milli seconds.
Divide the difference with 1000 to get Seconds.

Thanks for the correction Naveen.

Appu..
"If you judge people, you have no time to love them."

Re: time difference

Viorel.19-Jun-06 1:58

Viorel.

19-Jun-06 1:58

In MFC, use subtract operator and CTimeSpan class:

CTime time1 = CTime::GetCurrentTime();
::Sleep(3000);
CTime time2 = CTime::GetCurrentTime();
CTimeSpan diff = time2 - time1;
LONG seconds = diff.GetTotalSeconds();

Note the usage of CTime::GetCurrentTime static function.

Re: time difference

David Crow19-Jun-06 2:37

David Crow

19-Jun-06 2:37

marcoslav wrote:
t1.GetCurrentTime();

Wrong. Use this instead:

t1 = CTime::GetCurrentTime();

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

random selection up to 65000 numbers

johnalek19-Jun-06 1:31

johnalek

19-Jun-06 1:31

here i have project in that t require to select numbers radomely up to 65000.

#sankar#

Re: random selection up to 65000 numbers

NiceNaidu19-Jun-06 1:40

NiceNaidu

19-Jun-06 1:40

If u want numbers between MIN to MAX,

Use

rand() % (MAX- MIN+ 1) + MIN ;

Appu..
"If you judge people, you have no time to love them."

Re: random selection up to 65000 numbers

Cedric Moonen19-Jun-06 2:04

Cedric Moonen

19-Jun-06 2:04

rand is limited to RAND_MAX value which is 32767, so with your technique, it won't work.

Cédric Moonen
Software developer

Charting control

Re: random selection up to 65000 numbers

NiceNaidu19-Jun-06 2:07

NiceNaidu

19-Jun-06 2:07

So, wat is the function should i use ???

Appu..
"If you judge people, you have no time to love them."

Re: random selection up to 65000 numbers

Cedric Moonen19-Jun-06 2:05

Cedric Moonen

19-Jun-06 2:05

What I did when I wanted to have bigger number, was just adding the results of two rand. So, if it is up to 65000 this technique can work also.

Cédric Moonen
Software developer

Charting control

Re: random selection up to 65000 numbers

NiceNaidu19-Jun-06 2:15

NiceNaidu

19-Jun-06 2:15

Cedric Moonen wrote:
So, if it is up to 65000 this technique can work also.

But this does not ensure unique rand number.

If in one case : rand1 = 12345 , rnad2 = 3; randResult = 12348
If in the other case : rand2 = 12344 , rand2 = 4;randResult = 12348;

there is no guarantee of getting unique numbers.

There should be some other mean for getting rand numbers.

Hope I am not boring u Cerdic.

Appu..
"If you judge people, you have no time to love them."

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