C / C++ / MFC Discussion Boards

Re: Verify if my library(dll) is corrupted?

Hans Dietrich10-Feb-11 7:29

10-Feb-11 7:29

Can you try compiling it on a different machine? If you don't change the library, and you get different sizes from different compiles, then you should also look at the Windows event log for hard disk errors, or possibly even a virus.

Best wishes,
Hans

[Hans Dietrich Software]

Re: Verify if my library(dll) is corrupted?

Guido-210-Feb-11 21:56

Guido-2

10-Feb-11 21:56

There is in the pc an updated antivirus, and there is no problem in the pc.
Now I want to find a check for the dll, and later i look for the cause, perhaps the compilation with two processors...
Thanks

Checking Internet Connection

T.RATHA KRISHNAN10-Feb-11 0:31

T.RATHA KRISHNAN

10-Feb-11 0:31

Hi!
I've to check whether my System is connected to the net. How to check the Internet connectivity with VC++? I'm using Windows XP.

Re: Checking Internet Connection

Rajesh R Subramanian10-Feb-11 0:43

Rajesh R Subramanian

10-Feb-11 0:43

See InternetGetConnectedState()[^]

"Real men drive manual transmission" - Rajesh.

Re: Checking Internet Connection

T.RATHA KRISHNAN10-Feb-11 0:53

T.RATHA KRISHNAN

10-Feb-11 0:53

Hi!
Thanks for your reply. I used the following code and get these two errors:

bool connectionStatus = InternetGetConnectedState(INTERNET_CONNECTION_OFFLINE,0);

Errors:

d:\downloadversion\downloadversion\Form1.h(31) : error C2065: 'INTERNET_CONNECTION_OFFLINE' : undeclared identifier
d:\downloadversion\downloadversion\Form1.h(31) : error C3861: 'InternetGetConnectedState': identifier not found

I'm using Windows Forms.

Re: Checking Internet Connection

Rajesh R Subramanian10-Feb-11 0:59

Rajesh R Subramanian

10-Feb-11 0:59

You'll need to include a header, and link to a library to use this function. Scroll down to the "Requirements" section of the MSDN link I provided you with.

"Real men drive manual transmission" - Rajesh.

Re: Checking Internet Connection

T.RATHA KRISHNAN10-Feb-11 1:06

T.RATHA KRISHNAN

10-Feb-11 1:06

Hi!
It's told that minimum supported client and server as Windows 2000 Professional and Windows 2000 Server. Will it work with Windows XP?

Do I have to download the following to my Solution path?

Wininet.h
Wininet.lib
Wininet.dll

Re: Checking Internet Connection

Rajesh R Subramanian10-Feb-11 2:20

Rajesh R Subramanian

10-Feb-11 2:20

T.RATHA KRISHNAN wrote:
It's told that minimum supported client and server as Windows 2000 Professional and Windows 2000 Server. Will it work with Windows XP?

Windows XP was released after Windows 2000. So, the API will work on XP.

"Real men drive manual transmission" - Rajesh.

Re: Checking Internet Connection

Member 392263910-Feb-11 2:25

Member 3922639

10-Feb-11 2:25

try with

#include <Wininet.h>
#pragma comment(lib,"Wininet.lib")

Re: Checking Internet Connection

T.RATHA KRISHNAN10-Feb-11 2:56

T.RATHA KRISHNAN

10-Feb-11 2:56

Member 3922639 wrote:
#include <wininet.h>
#pragma comment(lib,"Wininet.lib")

If I include the above code, I got 283 errors, all in the Wininet.h file(Syntax errors, missing type specifier errors and error C2378: 'HINTERNET' : redefinition; symbol cannot be overloaded with a typedef). Where shall I get the Wininet.h file? Do I have to Download and install Windows SDK to solve all these errors?

Re: Checking Internet Connection

T.RATHA KRISHNAN10-Feb-11 3:11

T.RATHA KRISHNAN

10-Feb-11 3:11

After I included "windows.h", all the errors vanished. Thanks alot.

Re: Checking Internet Connection

Pravin Patil, Mumbai10-Feb-11 0:52

Pravin Patil, Mumbai

10-Feb-11 0:52

This http://visualcpp.net/index.php?qID=44[^] may help you.

All the best.

Re: Checking Internet Connection

PJ Arends12-Feb-11 9:22

PJ Arends

12-Feb-11 9:22

http://www.codeproject.com/Tips/67577/Check-for-an-active-Internet-connection.aspx[^]

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good - Use it!

Dialog base application

Nikesh Jagtap9-Feb-11 23:55

Nikesh Jagtap

9-Feb-11 23:55

Hi,
I have one dialog base application. It contains list control having some data in report view. After double

clicking on it a new modeless dialog gets opened. It contains edit controls which contains data of list

control's selected row. If i edit data in edit controls and press OK then data in list control should get

updated with newly updated data.
My problem is how I pass updated data to list control of parent dialog.
I am using Microsoft Visual studio 6.0.

Regards
Nikesh

Re: Dialog base application

CPallini10-Feb-11 0:17

CPallini

10-Feb-11 0:17

Implement an appropriate method in the parent dialog (the parent dialog, upon creation of the child one, should pass to the child a pointer to itself).
See this CodeProject's article:"Dialogs Communication"[^].
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: Dialog base application

User 742933810-Feb-11 7:39

User 7429338

10-Feb-11 7:39

When creating the modeless dialog, you have to specify a HWND that owns the new dialog; enter the HWND of the dialog containing the list control here.
You can use the GetParent[^] function to get the parent window HWND when the OK button is clicked on your modeless dialog. Use GetDlgItem[^] to get the HWND of the list view.

Now you can use SendMessage[^] with LVM_INSERTITEM[^] or LVM_SETITEM[^] to add/edit data in your list control.

modified 13-Sep-18 21:01pm.

Connect to FoxPro C++

Schehaider_Aymen9-Feb-11 23:22

Schehaider_Aymen

9-Feb-11 23:22

Hi all,

i'm attempting to connect to a foxpro dbaseIV via odbc. I was able to connect to it by specifying the physical path of may table (i.e C:\test\f_cheque.dbf). but for some purpose, i have to connect to that base without specifying the path, just by alias (odbc).

did some one know how to do that by C++. Thx

"The Ultimate Limit Is Only Your Imagination."

Re: Connect to FoxPro C++

CPallini9-Feb-11 23:43

CPallini

9-Feb-11 23:43

You should create a DSN (see, for instance "Creating a new ODBC DSN"[^]), then.

Re: Connect to FoxPro C++

Schehaider_Aymen9-Feb-11 23:50

Schehaider_Aymen

9-Feb-11 23:50

My mistake is that i missed to include the alias into the connectionstring.

Thx for the reply. Wink | ;)

"The Ultimate Limit Is Only Your Imagination."

ListControl Problem

rjkg9-Feb-11 23:20

rjkg

9-Feb-11 23:20

I have a ListControl in ICON view .I have many bitmap files . Now I want to show the files in list view .
How it is possible.

Rajesh

Re: ListControl Problem

Nuri Ismail9-Feb-11 23:51

Nuri Ismail

9-Feb-11 23:51

There are lots of example that might be useful for you.
With a quick search in CodeProject archive I found these articles:
- Showing the Image file thumbnail view in ListView control using VC++ 6.0[^]
- Thumbnails Viewer using ListCtrl[^]
- Using thumbnail images in a list control[^]

You can find even more articles on this topic.

Smile | :)

Windows Forms UI

pix_programmer9-Feb-11 22:39

pix_programmer

9-Feb-11 22:39

Hi!
I've to add Two Text Boxes and one Button to a Windows Forms in VC++. How to do this?

Re: Windows Forms UI

Schehaider_Aymen9-Feb-11 23:39

Schehaider_Aymen

9-Feb-11 23:39

To Add a button (button1) to a from (Frm1)

this.button1 = new System.Windows.Forms.Button();
this.Frm1.Controls.Add(this.button1 );

"The Ultimate Limit Is Only Your Imagination."

how to select the text of windows client area

sarfaraznawaz9-Feb-11 22:08

sarfaraznawaz

9-Feb-11 22:08

I am trying to select the text of client area which i had paint by using the textout().how i had display the text see ..............

<pre lang="msil">void GetFormattedData( PVOID pBuf,DWORD dwOffset, CString &szFormatted )
{
BYTE *SETBUFF = ((BYTE*)(pBuf)) + dwOffset ;
szFormatted.Format(_T("%08d: %.2X %.2X %),dwOffset,SETBUFF[0], SETBUFF[1],;
}</pre>
<pre lang="cs">for(int i = Start; i<= End; i++)
{
GetFormattedData(m_lpData, (i + m_nVScrollBarPos )* m_cyChar,szFormatted);
m_pDC.TextOut((1 - m_nHScrollBarPos) * m_cxChar , i * m_cyChar, szFormatted);
}</pre>

Re: how to select the text of windows client area

Niklas L10-Feb-11 22:31

Niklas L

10-Feb-11 22:31

C++

void GetFormattedData( PVOID pBuf, DWORD dwOffset, CString &szFormatted )
{
  BYTE *SETBUFF = ((BYTE*)(pBuf)) + dwOffset ;
  szFormatted.Format(_T("%08d: %.2X %.2X "), dwOffset, SETBUFF[0], SETBUFF[1]);
}

for(int i = Start; i <= End; i++)
{
  GetFormattedData(m_lpData, (i + m_nVScrollBarPos )* m_cyChar, szFormatted);
  m_pDC.TextOut((1 - m_nHScrollBarPos) * m_cxChar, i * m_cyChar, szFormatted);
}

A bit unclear description.

sarfaraznawaz wrote:
how i had display the text see ..............

Do you want to know how to display ellipsis at the end of the string if it's too long? You could use CDC::DrawText()[^] with DT_END_ELLIPSIS formatting instead of TextOut().

sarfaraznawaz wrote:
I am trying to select the text of client area which i had paint by using the textout().

If, on the other hand, you want to be able to select portions of the text, you would be better off using an edit control. You can style them to look like you need them too (mostly true), removing frames and such.

If you want to let the user only select the entire text, you could respond to WM_LBUTTONDOWN events within your text rectangle, and redraw the text with a different background color set in the DC.

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