C / C++ / MFC Discussion Boards

Gérald Mercet21-Jan-03 2:05

21-Jan-03 2:05

Hello,

In the samples given on microsoft support (Q178749: HOWTO Create automation project using MFC and a type library) we have to select Microsoft Excel 8.0 Object Library if we use excel automation. But what could i do if i have office XP on my workstation?

thanks in advance

gerald

Re: for excel automation

21-Jan-03 2:14

I assume you are using VC7

to import library (Excel in your case)
#import "libid:\<<excel8libid\>>"

if you want to be more specific with the version
#import "libid:\<<excel8libid\>>" version("x.x")

From what I saw MSOffice libraries are backward compatible so it should work, even though by rules of COM major version change should be treated as separate library.

Re: for excel automation

Gérald Mercet21-Jan-03 2:31

Gérald Mercet

21-Jan-03 2:31

no i use VC++ 6.0

Re: for excel automation

AlexO21-Jan-03 2:40

AlexO

21-Jan-03 2:40

then use
#import "excel8.olb"

And you will have to carry excel8.olb as a part of your build. I am not sure if it is legal though, you might have to have Excel8 on your build machine, check the user agreement.

Re: for excel automation

Giles21-Jan-03 2:31

Giles

21-Jan-03 2:31

If you target the Excel 8.0 library and build your exe, it will still work on different machines with Office 2000 and Office XP, though it does not seem to work in reverse. i.e. build for the 10.0 library and run it on a machine with Excel 97.

Selected tab is changing

Telefonen21-Jan-03 1:59

Telefonen

21-Jan-03 1:59

Hi,
I get a notification when a user is changing a tab in my CTabCtrl
How can I see what tab he is changing to?

ON_NOTIFY(TCN_SELCHANGING, IDC_SELECT_TAB, OnChangingTab)

...

void
MyMfcView::
OnSelchangingProjectSelectTab(NMHDR* pNMHDR, LRESULT* pResult)
{
// I get the currently selected tab
int selectedTab = TabCtrl_GetCurSel(pNMHDR->hwndFrom);

// But what's the index of the next tab???
int nextTab = ???

*pResult = IsOk(selectedTab, nextTab) ? 0 : 1;
}

Any ideas?

Re: Selected tab is changing

RChin21-Jan-03 2:59

RChin

21-Jan-03 2:59

That information would not be available at that time.
The TCN_SELCHANGING message occurs when the tab is about to change.

Override the TCN_SELCHANGE notification message and
call GetCurSel to get the tab that you have selected.

Re: Selected tab is changing

jhwurmbach21-Jan-03 3:57

jhwurmbach

21-Jan-03 3:57

But at this time, you can not stop the change-process any more.
You can switch back to the page just left, though.

My opinions may have changed, but not the fact that I am right.

System Lock

suresh_sathya21-Jan-03 0:49

suresh_sathya

21-Jan-03 0:49

Any API is there to find wheather the system is locked.

define "system is locked"

AlexO21-Jan-03 2:07

AlexO

21-Jan-03 2:07

define "system is locked"

Re: define "system is locked"

Daniel Turini21-Jan-03 6:36

Daniel Turini

21-Jan-03 6:36

In my definition, this is a locked system:

SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS);
int x = 0;
while (true)
  x++;

I see dumb people

Re: define "system is locked"

RobJones21-Jan-03 6:44

RobJones

21-Jan-03 6:44

yes it is..

Passing a 2D array to a function

pankajdaga21-Jan-03 0:40

pankajdaga

21-Jan-03 0:40

Hi everyone,

I have a weird problem. I have a function definition like

void SetUp(double **)

Now I have an array:
static double ERBbCoeff_22050[6][7] = {.... values...};

Now when I try to call the function SetUp(ERBbCoeff_22050), it throws the error...cannot convert parameter from double[6][7]to double**. However, I thought a 2D array could be represented as pointer to a pointer.

Obviously, I am missing something here. Anyone know what is going on? I would appreciate any help.

Thanks again,

Pankaj

Without struggle, there is no progress

Re: Passing a 2D array to a function

Dominik Reichl21-Jan-03 1:01

Dominik Reichl

21-Jan-03 1:01

Try declaring the function SetUp as:

void SetUp(double *array[7]);

And then pass the array like before:

SetUp(ERBbCoeff_22050);

-Dominik

Re: Passing a 2D array to a function

pankajdaga21-Jan-03 1:10

pankajdaga

21-Jan-03 1:10

Hi Dominik,

Nope even that did not work. I tried it before. It still says:

error C2664: 'Beat::FilterBank::SetUp' : cannot convert parameter 3 from 'double [6][7]' to 'double *[]'

This is really weird. Do not worry, I will try to find a way.

Thanks for all your help,

Pankaj

Without struggle, there is no progress

Re: Passing a 2D array to a function

Dominik Reichl21-Jan-03 1:13

Dominik Reichl

21-Jan-03 1:13

Perhaps pass the array like
SetUp(&array[0]);

This helps? Unsure | :~

-Dominik

Re: Passing a 2D array to a function

pankajdaga21-Jan-03 1:04

pankajdaga

21-Jan-03 1:04

Hi RChin,

Thanks for your reply. Your reply seems to be lost though! Unsure | :~

But it did not work. Now I get the following error,

c:\Pankaj\TestProjects\BeatDetectionNew\BeatDetection.cpp(180): error C2664: 'Beat::FilterBank::SetUp' : cannot convert parameter 3 from 'double (*__w64 )[6][7]' to 'double ** '

I always thought I could pass it as a pointer. I mean we can pass an array as a pointer Hmmm | :|

Pankaj

Without struggle, there is no progress

Re: Passing a 2D array to a function

RChin21-Jan-03 1:06

RChin

21-Jan-03 1:06

this will compile:

<br />
static double arrVar[2][2]={1,2,3,4};<br />
SetUp( &arrVar[0][0] );<br />

<br />
static double arrVar[2][2]={1,2,3,4};<br />
SetUp( arrVar[0] );<br />

if you declare the function as
void SetUp(double*)

Your function will have to know the dimentions of the given array.

However, you might have a valid reason for declaring the input parameter as a pointer to a pointer.

Re: Passing a 2D array to a function

HENDRIK R21-Jan-03 1:55

HENDRIK R

21-Jan-03 1:55

Hello,

it works if you call your function like
SetUp((double**)ERBbCoeff_22050).

Re: Passing a 2D array to a function

pankajdaga21-Jan-03 2:17

pankajdaga

21-Jan-03 2:17

hey, it works!!

Thanks a bunch! Smile | :)

Pankaj

Without struggle, there is no progress

Simple question

SatyaDY21-Jan-03 0:31

SatyaDY

21-Jan-03 0:31

Hi guys,
How to give database support to an existing MFC Project?? I have tried in the following way.

1.Inserted a new class with CRecordSet as the base class.
2.Connected to the database.
3.Included the necessary headers and declarations.

It compiling without error and warnings but when I am try to run my project it is giving "unhandled exception".
I debug the code it is stopping at m_pSet->AddNew().
Can anybody help me please ..
Regards,
Satya

can anyone help!!!!!please!!1

xxhimanshu20-Jan-03 23:36

xxhimanshu

20-Jan-03 23:36

hi all,

I am working on something where i need to change the default search page of windows. i.e. auto.search.msn.com that is just type anything on IE addressbar and if that doesn't exit it will automatically be diverted to auto.search.msn.com....now if i want to change it to google I can do that..but I am unable to change it to any other search engine or any other site...
what should I do...can anyone help me...out there..

thanks in advance..

Himanshu

HELP!!! Return between CStrings

Sunnygirl20-Jan-03 23:17

Sunnygirl

20-Jan-03 23:17

hello @all,

i have a mfc-program and two CStrings.
i would like to connect these, but everyone in its own line, e.g. they should be separated with a Return.

CString one="123";
CString two="456";
CString combination="123
456";

i posted it yesterday and somebody said, that i can use this:

combination=one+0X0A+0X0D+two;

but when i save my CString combination into a txt-file, the CString are not in its own line, there is only a 'symbol' between them.

what must i do, that the CStrings are in their own lines???

thanks
sunny

Re: HELP!!! Return between CStrings

benjymous20-Jan-03 23:20

benjymous

20-Jan-03 23:20

use "\n"

--
Help me! I'm turning into a grapefruit!

Re: HELP!!! Return between CStrings

Thomas Lau20-Jan-03 23:42

Thomas Lau

20-Jan-03 23:42

It should be :one +0X0D+0X0A+two; Smile | :)

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