C / C++ / MFC

macmac381-Jul-03 1:56

macmac38

1-Jul-03 1:56

mmh, i use NULL for HWND when i start the app. Nothing happens..

Thanks, Mark

Joan M1-Jul-03 3:21

Joan M

1-Jul-03 3:21

It is normal:

the HWND defines which window will receive the message, then if you send the KeyPress to a null window...

you should start your app, then find the window of that app and after that send the message there...

I think that you can also do it better, and in order to do so, you should take a look at CreateProcess(...).

hope this helps.

macmac381-Jul-03 4:40

macmac38

1-Jul-03 4:40

But how can i find the window of that app? It is a commercial one. By the way i think i have to wait till the app is up before i send the message there?

Thanks, Mark

Directx and the VC++ .NET environment

basementman1-Jul-03 5:52

basementman

1-Jul-03 5:52

If you launch it by using the CreateProcess api, one of the parameters is a PROCESS_INFORMATION structure. This gets filled in with the THREAD HANDLE of the primary thread for the newly lauched app. After the CreateProcess call returns, wait for the app to initialize by calling WaitForInputIdle(). When this returns, then you should be able to simulate a keystroke with the PostThreadMessage api, passing the new app's main thread handle as the parameter.

Good Luck!

onwards and upwards...

JamesLaing30-Jun-03 23:17

JamesLaing

30-Jun-03 23:17

Hi.

Does anyone know if there is a DirectX application wizard for use with the VC++ .NET version.
I am looking for something similar to the app wizard that is available for use under VC++ 6 ?.

Thanks.
James

Delete All folder and its contents

rohit.dhamija30-Jun-03 22:54

rohit.dhamija

30-Jun-03 22:54

;PDear All,
Is there any API which may simulate Deltree command.

I am developing a application for Windows 2000/NT/XP in which i want to remove all contents of a given folder .

Or any alternate way to achieve the same ?

Thanks
Rohit

Ryan Binns30-Jun-03 23:06

30-Jun-03 23:06

Rohit Divas wrote:
Or any alternate way to achieve the same ?

Yes. You'll have to recursively go through the folders, delete each file, and then finally delete the folder. Of course, if a folder contains subfolders, then you'll need to go through that folder and delete all the files and subfolders in it etc., hence the recurson.

Ryan

Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2^nd April 2003, The Lounge)

Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late - John Nichol "Point Of Impact"

Anonymous30-Jun-03 23:08

Anonymous

30-Jun-03 23:08

try this:

#include <string><br />
#include <iostream><br />
<br />
#include <conio.h><br />
<br />
<br />
int DeleteDirectory(const std::string &refcstrRootDirectory)<br />
{<br />
  std::string     strFilePath;           // Path of file<br />
  std::string     strPattern;            // Pattern<br />
  HANDLE          hFile;                 // Handle to file<br />
  WIN32_FIND_DATA FileInformation;       // File information<br />
<br />
<br />
  strPattern = refcstrRootDirectory + "\*.*";<br />
  hFile = ::FindFirstFile(strPattern.c_str(), &FileInformation);<br />
  if(hFile != INVALID_HANDLE_VALUE)<br />
  {<br />
    do<br />
    {<br />
      if(FileInformation.cFileName[0] != '.')<br />
      {<br />
        strFilePath.erase();<br />
        strFilePath = refcstrRootDirectory + "\" + FileInformation.cFileName;<br />
<br />
        if(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)<br />
        {<br />
          // Delete subdirectory<br />
          int iRC = DeleteDirectory(strFilePath);<br />
          if(iRC)<br />
            return iRC;<br />
        }<br />
        else<br />
        {<br />
          // Set file attributes<br />
          if(::SetFileAttributes(strFilePath.c_str(),<br />
                                 FILE_ATTRIBUTE_NORMAL) == FALSE)<br />
            return ::GetLastError();<br />
<br />
          // Delete file<br />
          if(:eleteFile(strFilePath.c_str()) == FALSE)<br />
            return ::GetLastError();<br />
        }<br />
      }<br />
    } while(::FindNextFile(hFile, &FileInformation) == TRUE);<br />
<br />
    // Close handle<br />
    ::FindClose(hFile);<br />
<br />
    DWORD dwError = ::GetLastError();<br />
    if(dwError != ERROR_NO_MORE_FILES)<br />
      return dwError;<br />
    else<br />
    {<br />
      // Set directory attributes<br />
      if(::SetFileAttributes(refcstrRootDirectory.c_str(),<br />
                             FILE_ATTRIBUTE_NORMAL) == FALSE)<br />
        return ::GetLastError();<br />
<br />
      // Delete directory<br />
      if(::RemoveDirectory(refcstrRootDirectory.c_str()) == FALSE)<br />
        return ::GetLastError();<br />
    }<br />
  }<br />
<br />
  return 0;<br />
}<br />
<br />
<br />
int main()<br />
{<br />
  std::string strDirectoryToDelete = "c:mydir";<br />
<br />
  // Delete 'c:mydir' and its subdirectories<br />
  int iRC = DeleteDirectory(strDirectoryToDelete);<br />
  if(iRC)<br />
  {<br />
    std::cout << "Error " << iRC << endl;<br />
    return -1;<br />
  }<br />
<br />
  // Wait for keystroke<br />
  _getch();<br />
<br />
  return 0;<br />
}

Rickard Andersson²⁰30-Jun-03 23:13

Rickard Andersson²⁰

30-Jun-03 23:13

SHFileOperation() will help you!

Rickard Andersson
Here is my card, contact me later!
UIN: 50302279
E-Mail: nikado@pc.nu
Interests: C++, ADO, SQL, Winsock, 0s and 1s

Ryan Binns1-Jul-03 0:07

Not exactly C++ -> Setup Project

1-Jul-03 0:07

Rickard Andersson18 wrote:
SHFileOperation()

I thought of that, but does SHFileOperation() do a recursive delete on an nonempty folder?

Ryan

Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2^nd April 2003, The Lounge)

Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late - John Nichol "Point Of Impact"

Brian Delahunty30-Jun-03 22:36

Brian Delahunty

30-Jun-03 22:36

<edit> Problem Sorted </edit>

Regards,
Brian Dela Smile | :)

Re: Not exactly C++ -> Setup Project

Rage30-Jun-03 23:20

Rage

30-Jun-03 23:20

Hi !

Your question is not clear... Is this an Installshield question ? I do not understand what you mean with I have Launch Conditions in place that determine if the resgistry entry is there but how to I get the folder to install in the path indicated in the registry entry?. In Installshield, I seem to remember that you can use VB registry commands to achieve that.

What I suggest you is to use Innosetup, since it will take you approximatively 5 minutes to achieve that Big Grin | :-D

~RaGE();

Re: Not exactly C++ -> Setup Project

Brian Delahunty30-Jun-03 23:37

Brian Delahunty

30-Jun-03 23:37

Rage wrote:
Is this an Installshield question ?

I created a SetupProject through Visual Studio .NET 2003 so it's INstallShield based.

Regards,
Brian Dela Smile | :)

Re: Not exactly C++ -> Setup Project

Brian Delahunty1-Jul-03 0:24

Brian Delahunty

1-Jul-03 0:24

Sorted

Regards,
Brian Dela Smile | :)

OpenSSL

Ravi Jadhav30-Jun-03 22:28

Ravi Jadhav

30-Jun-03 22:28

I want to use OpenSSL in my current socket application and i want to remove the MFC socket i.e MFC dependency. Where can i get sample code for OpenSSL or the documentation which tell me what steps needs to follow while using OpenSSL. Thanks For your Help.

ComboBox

bigmirror30-Jun-03 22:11

bigmirror

30-Jun-03 22:11

I want to make the combobox with bitmap list.

Instead of using "AddString" function,

how can I make the list with bitmap.

Re: ComboBox

Ryan Binns30-Jun-03 22:19

30-Jun-03 22:19

You'll have to use an owner-draw combo box (set the CBS_OWNERDRAWFIXED or CBS_OWNERDRAWVARIABLE style).

This[^] article describes exactly this.

Ryan

Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2^nd April 2003, The Lounge)

Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late - John Nichol "Point Of Impact"

Re: ComboBox

bigmirror30-Jun-03 22:28

bigmirror

30-Jun-03 22:28

Code:
m_list.Create(IDB_BITMAP1,40,10,RGB(255,255,255));
//m_list is CImageList type member variable

m_Lang.SetImageList(&m_list);
//m_Lang is combobox control member variable

Umm... I'm very poor at visual c++.

I wrote those two lines for getting bitmap list.

But the bitmap image is not appeared.

How can I do?

Re: ComboBox

Ryan Binns30-Jun-03 22:41

30-Jun-03 22:41

I assume you're using CComboBoxEx because CComboBox does not have a SetImageList() function.

Have you associated an image with each item?

COMBOBOXEXITEM cbItem;
cbItem.mask = CBIF_IMAGE;
cbItem.iItem = nItem; // The index of the item in your combo box
cbItem.iImage = nImageIndex; // The index of the image in your image list
m_Lang.SetItem(&cbItem);

Ryan

Being little and getting pushed around by big guys all my life I guess I compensate by pushing electrons and holes around. What a bully I am, but I do enjoy making subatomic particles hop at my bidding - Roger Wright (2^nd April 2003, The Lounge)

Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late - John Nichol "Point Of Impact"

About "&"

FlyingDancer30-Jun-03 22:00

FlyingDancer

30-Jun-03 22:00

A sentence is like below:
lpwndpos->flags &= ~SWP_SHOWWINDOW;
What is the meaning of "&"?
Thanks

FlyingDancer30-Jun-03 22:03

FlyingDancer

30-Jun-03 22:03

Is it has the same meaning as below?
lpwndpos->flags = &(~SWP_SHOWWINDOW);

Toni7830-Jun-03 22:07

Toni78

30-Jun-03 22:07

Aleon666 wrote:
Is it has the same meaning as below?
lpwndpos->flags = &(~SWP_SHOWWINDOW);

No. In the first question that you posted '&' is the binary operation AND.
lpwndpos->flags &= ~SWP_SHOWWINDOW is the same as
// pseudo code
lpwndpos->flags = lpwndpos->flags AND (NOT SWP_SHOWWINDOW)

// Afterall, I realized that even my comment lines have bugs

When one cannot invent, one must at least improve (in bed).-My latest fortune cookie

Cedric Moonen30-Jun-03 22:11

Cedric Moonen

30-Jun-03 22:11

The "&=" is an abbreviation of: lpwndpos->flags = (lpwndpos->flags & (~SWP_SHOWWINDOW)). So this is a bit AND operator.
The "~" means you invert all the bits that are in SWP_SHOWWINDOW (all 0 becomes 1 and all 0 becomes 1).

So this sentence just means you will put the bits specified by SWP_SHOWWINDOW (all the bits that are 1 in this constant) at 0 in lpwndpos->flags.

Hope this is clear enough Smile | :)