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Re: File Properties ->Summary

amol arya28-Dec-03 3:52

amol arya

28-Dec-03 3:52

Thanks a lot Mike for the help.

I was successfully able to get summary and custom information out of this.
But I have one problem with this regards. The file (format) whose File->Properties I want to extract has something called "Configurations" in addition to "General", "Summary", and "Custom" tabs in it's File properties.
This TAB is exactly the same as "Custom" tab in File->Properties. The help documentation of my file-format mentions that these properties are written to the file in an 'OLE Property' way. But the source code you provided doesnot mentions any way to get the "user-defined" tab information.

Can you please help me out in extracting such information of a file.

Best wishes and Regards,
Amol

how i can link c library from c++ class

Rajesh match23-Dec-03 23:21

Rajesh match

23-Dec-03 23:21

i have C library which i need to invoke from c++ class
but when i tried to invoke the functions of the c library i am getting linker error of particlar function

Can anybody help
thanx

Re: how i can link c library from c++ class

Taka Muraoka23-Dec-03 23:54

Taka Muraoka

23-Dec-03 23:54

When you declare the function, wrap it in an extern "C":

<br />
extern "C" {<br />
extern void the_c_function() ; <br />
}<br />

Lets be honest, isn't it amazing how many truly stupid people you meet during the course of the day. Carry around a pad and pencil, you'll have twenty or thirty names by the end of the day - George Carlin

Awasu 1.1.5 [^]: A free RSS reader with support for Code Project.

Re: how i can link c library from c++ class

Rajesh match24-Dec-03 0:12

Rajesh match

24-Dec-03 0:12

Thanx for reply
This should be in library or in my class if so i don't have c library source code
then how can modify it
thax..

Re: how i can link c library from c++ class

Taka Muraoka24-Dec-03 0:15

Taka Muraoka

24-Dec-03 0:15

Wrap the header file:

<br />
extern "C" {<br />
#include "api.h"<br />
}<br />

Or just duplicate the declarations you want.

If you're writing a C library, it's good form to put the extern "C" *inside* the header file but not every one does it.

Database Problem

harwanegg23-Dec-03 23:04

harwanegg

23-Dec-03 23:04

Hi there,

I have a problem with the MS Access ODBC driver.

My code looks something like this
First, i open the database using the Acces driver
CDatabase database;
CString SqlString;
CString sDriver = "MICROSOFT ACCESS DRIVER (*.mdb)";
CString sDsn;
CString sFile = "d:\\MyDB\\MyDB.mdb";
sDsn.Format("ODBC;DRIVER={%s};DSN='';DBQ=%s",sDriver,sFile);
database.Open(NULL,false,false,sDsn);

Then I create the recordset (the class MyRS is derived from CRecordset)

MyRS rs (&database);
SqlString = "SELECT * From Table1";

What works:
rs.Open(CRecordset::forwardOnly, SqlString);
THis however does not allow using MoveFirst, MoveNext and so on nor to edit and updata records.

These two do not work. I get told that the driver does not support dynamic or dynaset pointers.
rs.Open( CRecordset::dynaset, SqlString, CRecordset::none );
rs.Open( CRecordset::dynamic, SqlString, CRecordset::none );

This works, and I can edit and move back and forward in the recordset, but i cannot filter the recordset with an Sql statement:
rs.Open( CRecordset::snapshot);

does not work : rs.Open( CRecordset::snapshot, SqlStatement);

I did not find in the MSDN that the driver i use does not support dynasets.

Thanks a lot

ch

rs.Open( CRecordset::dynamic, SqlString, CRecordset::none );

grammer of fortran language

ammad ami23-Dec-03 22:59

ammad ami

23-Dec-03 22:59

i am student. i have a need of fortran programing language. my aim is made syntex analyser of the language as an assignment if i got it i simply implement using c++ routines.

Install Shield details

skpanda23-Dec-03 21:55

skpanda

23-Dec-03 21:55

hello,
please give some sites.. which gives tips,code,example etc... to build the install shield for my software project ...which is developed in VC++,VB on windows platform....

actually i have zero knowledge of Install Shield use..

so want help...on line...

waiting for early reply.

thanking u.

skpanda

Re: Install Shield details

Monty²23-Dec-03 22:40

Monty²

23-Dec-03 22:40

Article on CodeProject
Click ME[^]

Live as if your were to die tomorrow. Learn as if you were to live forever.
-Mahatma Gandhi

Re: Install Shield details

Michael P Butler24-Dec-03 2:44

Michael P Butler

24-Dec-03 2:44

http://www.installsite.org/[^]

Michael

Snow is lying on the ground, and in the air the sleigh bells sound,
The frosted patterned window panes, it's British summer time again.
No, it's not, It's Christmas - Santa Claus in on the Dole (Spitting Image 1986)

Re: Install Shield details

neo2k324-Dec-03 5:17

neo2k3

24-Dec-03 5:17

http://installshield.com/
This has a very good knowledge base and will answer every question of yours.
East

How to Enumerate Window CE process

Member 39424123-Dec-03 21:52

Member 394241

23-Dec-03 21:52

Hi,I am a programme-loving.But at recently programme development ,I have meet a headache problem,I search all
the MSDN and use google to search all for nothing.
Who can you help me how to enumerate Windows CE process
Thank ! Smile | :)

standard scrollbar & scrollbar control

ashxly23-Dec-03 21:51

ashxly

23-Dec-03 21:51

is there any way to determine a window has standard scrollbar or scrollbar control? in other word, how to scroll a window that does not belong to my app?

Re: standard scrollbar & scrollbar control

Monty²23-Dec-03 22:37

Monty²

23-Dec-03 22:37

Try sending WM_HSCROLL and WM_VSCROLL Messages to that Window

Live as if your were to die tomorrow. Learn as if you were to live forever.
-Mahatma Gandhi

Re: standard scrollbar & scrollbar control

ashxly23-Dec-03 23:00

ashxly

23-Dec-03 23:00

sure, you are right
but i want to get some information about the scrollbar(range,pos etc.)
Do you know how can i do it???

thanks

Re: standard scrollbar & scrollbar control

Monty²23-Dec-03 23:56

Monty²

23-Dec-03 23:56

Why don't you use GetScrollRange with the HWND of scroll bar
MSDN says
If the specified window does not have standard scroll bars or is not a scroll bar control, the GetScrollRange function copies zero to the lpMinPos and lpMaxPos parameters.

this might help Smile | :)

Live as if your were to die tomorrow. Learn as if you were to live forever.
-Mahatma Gandhi

Re: standard scrollbar & scrollbar control

ashxly24-Dec-03 14:34

ashxly

24-Dec-03 14:34

MailMonty,
thanks for your reply,
I have tried to use GetScrollRange but nothing happened,
the min&max of the range are both zero
but i want to get the range and scroll it exactly

have you any good idea?

Class Member Variables:instance Vs pointer

hehenoobhehe23-Dec-03 21:08

hehenoobhehe

23-Dec-03 21:08

I am in the process of reorganizing my code and came across and I came across a problem, as described in the subject line of this posting.

I have many classes that have instances of other classes as member variables. So including a forward declaration doesnt help, does it? Faced with these, I had the following options:
-Include the appropriate header in the header file that contains the class definition that has a member variable that is a class instance as opposed to a pointer to the class
-Change the member variable from being a class instance to a class pointer.

I have the following questions:
1) Which approach is *better* and why?
2) If you need to include the header and the forward declaration of the class doesnt help(which is reasonable) what do you do?
For now, Im using this

#ifndef __FILE_H<br />
#include "File.h"<br />
#endif

Thanks in advance.

Re: Class Member Variables:instance Vs pointer

Johnny ²23-Dec-03 23:30

Johnny ²

23-Dec-03 23:30

The best approach depends upon your program. Its generally easier to have the class instance rather than a pointer, as you dont then need to manage allocation/deallocation. Plus it will be a little faster as the variable will be allocated automatically with the class, as opposed to having to use the heap. I would only use a pointer if its being passed into the class (for example, a pointer to the parent)

How to get the text of the button on the ctoolbarctrl?

benben23-Dec-03 21:06

benben

23-Dec-03 21:06

Hi:
How to get the text of the button on the ctoolbarctrl?I try:CToolBarCtrl::GetButtonInfo(),but the text it returns is always empty.
TBBUTTONINFO tbinfo;
char szBuf[100];
tbinfo.cbSize = sizeof (TBBUTTONINFO);
tbinfo.dwMask =TBIF_IMAGE|TBIF_STYLE|TBIF_TEXT;
tbinfo.pszText = szBuf;
tbinfo.cchText = 100;
cTbCtrl->GetButtonInfo(pInfo->dwItemSpec,&tbinfo);//（CToolBarCtrl * cTbCtrl）

but the szBuf is always empty.How should I do?
Thanks
Benben

How detect of USB Web-Came connect on PC

trekhlebov23-Dec-03 20:44

trekhlebov

23-Dec-03 20:44

My goal is detecting USB Web-Came connection in my PC for correct video capture.
I use DirectShow for my work. I did enumerating videocapture devices and always getting identical result - Web Came is in system. Independing WebCame is plug in or plug out.

How can I do it yet?

Tav

Re: How detect of USB Web-Came connect on PC

Monty²23-Dec-03 23:51

Monty²

23-Dec-03 23:51

I Use this Code works all the while
what problem are you having ?

IEnumMoniker *pEm;
hr = pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,&pEm, 0);
pCreateDevEnum->Release();

if (hr != NOERROR) 
{
  MessageBox("Sorry, you have no video capture hardware");
  return FALSE;
}
pEm->Reset();

Live as if your were to die tomorrow. Learn as if you were to live forever.
-Mahatma Gandhi

Setting attributes of a file/folder

rohit.dhamija23-Dec-03 20:18

rohit.dhamija

23-Dec-03 20:18

Dear All,

I am developing an application for Windows 2000 in MFC VC++ Version 6.0. I need to set attributes (read only, hide, etc...) on a given file/folderd.Is there any Win32 API provided ?

Thanks a lot and Happy Christmas!!

Rohit

Re: Setting attributes of a file/folder

Monty²23-Dec-03 23:44

Monty²

23-Dec-03 23:44

Try _chmod

if( _chmod( "CHMOD.C", _S_IREAD ) == -1 )
      perror( "File not found\n" );
   else
      printf( "Mode changed to read-only\n" );

Live as if your were to die tomorrow. Learn as if you were to live forever.
-Mahatma Gandhi

Re: Setting attributes of a file/folder

valikac24-Dec-03 6:10

valikac

24-Dec-03 6:10

One solution is SetFileAttributes().

Kuphryn

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