C / C++ / MFC Discussion Boards

Re: urgent: to list names of all the computers on a network

rohini sharma20-Feb-06 6:56

20-Feb-06 6:56

If i include "Wspiapi.h" it gives error on that line Ünable to open file Wspiapi.h
This project is same for client as well as server. I am working on Windows 2000 professional as well as WinXP Professional.

Re: urgent: to list names of all the computers on a network

Dan McCormick20-Feb-06 7:21

Dan McCormick

20-Feb-06 7:21

Search your development machine for those two header files (wspiapi.h and ws2tcpip.h). On my system they reside in C:\PROGRAM FILES\MICROSOFT SDK\INCLUDE.

If they don't exist at all on your machine, then it's little wonder that the compiler can't find them. You will need to upgrade your development environment.

If they do exist, then you probably have an issue with the list of directories the compiler is searching to find them. For VC++ 6 I can get to that information by clicking [Tools] -> [Options] -> [Directories].

Regards,
Dan

Remember kids, we're trained professionals.
Don't try this at home!

How to set file filter?

xyhan18-Feb-06 6:57

xyhan

18-Feb-06 6:57

My project needs to recognize two different file types(different extention name).How to set file filter to make file dialog showing two file type with that kind of extention name? My IDE is Visual C++ 6.0 with SP6.

Thanks in advance.

Best,
xyhan

Re: How to set file filter?

David Crow18-Feb-06 7:02

David Crow

18-Feb-06 7:02

See here.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Update Message in system tray

Atif Farooq18-Feb-06 2:27

Atif Farooq

18-Feb-06 2:27

Some programs shows a messages on top of systray when some new updates are ready . How to show such an update message.
Thanks in advance Smile | :)

Take Care

Re: Update Message in system tray

Michael Dunn18-Feb-06 5:28

Michael Dunn

18-Feb-06 5:28

That's done using the balloon tooltip feature added in WinMe.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: Update Message in system tray

Atif Farooq24-Feb-06 12:35

Atif Farooq

24-Feb-06 12:35

Thanks for helping out

Take Care

-- modified at 18:35 Friday 24th February, 2006

Change hard-coded variables from Outside

RedDragon2k18-Feb-06 2:09

RedDragon2k

18-Feb-06 2:09

Hello,

How can I change a hard-coded variable from another program with my program ?
For example:
Program A has this definition:
CString strTmp = "This is a Test";
somewhere in it's code.

And now I want with my program to change this variable to "This is another Test".
How could I realize this ?

With best regards,
Benedikt

Re: Change hard-coded variables from Outside

David Crow18-Feb-06 6:58

David Crow

18-Feb-06 6:58

You can open the file (as binary) with Visual Studio and search for the string literal. You can't, however, make it any longer.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: Change hard-coded variables from Outside

jc0dex18-Feb-06 15:49

jc0dex

18-Feb-06 15:49

Hello,

First off one quick question ... with the simplicity of scripts why go thru all the trouble to change hard coded varibles? A simple text file and a text parser is like magic sometimes Smile | :)

But as for changing hard coded variables, maybe putting the variable on its own thread and using a mutex would work. Or alternatively you could make one program take key input then use Shell Extensions to run that program inside another program and give it input from the second program.

Just a couple of random, probably nonsensical ideas, hope that helps Smile | :)

Jay

Linux

Hamid_RT18-Feb-06 1:55

Hamid_RT

18-Feb-06 1:55

How to create program for linux

Re: Linux

Nemanja Trifunovic18-Feb-06 14:28

Nemanja Trifunovic

18-Feb-06 14:28

Visible_Info wrote:
How to create program for linux

With gcc[^]

My programming blahblahblah blog. If you ever find anything useful here, please let me know to remove it.

Communicating with services

Anorexic Tribble18-Feb-06 1:52

Anorexic Tribble

18-Feb-06 1:52

What is the best way for a control program to communicate with a system service that I am writing? I have seen that you can send a custom control code, but how can you pass parameters.

How is this generally done? Is it via registry entries?

Re: Communicating with services

George L. Jackson18-Feb-06 2:53

George L. Jackson

18-Feb-06 2:53

I have used MSMQ with a lot of success. Or, you can use remoting from a server. I like the MSMQ solution better because it has built-in solutions to reduce data loss and it scales easily.

-- modified at 10:23 Saturday 18th February, 2006

Delphi Pascal to C++

hutt18-Feb-06 1:49

hutt

18-Feb-06 1:49

Hi,
Need some help translating some structures from Pascal to C++.
Any help would be appreciated.

TWideText = record<br />
  Text: array[1..20] of WideChar;<br />
  Len: Byte;<br />
end;<br />
<br />
TWideComment = record<br />
  Text: array[1..255] of WideChar;<br />
  Len: Byte;<br />
end;<br />
<br />
TChar = record<br />
  Pixels: array[0..9, 0..44] of Byte;<br />
  RTop: Byte;<br />
  Width, Height: Byte;<br />
  Text: TWideText;<br />
  Style: Byte;<br />
  deleted: boolean;<br />
end;<br />
<br />
TChMatrix = record<br />
  Modified: boolean;<br />
  FileName: WideString;<br />
  Comment: TWideComment;<br />
  Char: array of TChar;<br />
end;

Patrik

Re: Delphi Pascal to C++

Michael Dunn18-Feb-06 5:33

Michael Dunn

18-Feb-06 5:33

Example:

struct TChar
{
  unsigned char Pixels[10][45];
  unsigned char RTop, Width, Height;
  TWideText Text;
  unsigned char Style;
  bool deleted;
};

C array indexes always start at 0, so the code that accesses those 1-based arrays will have to change too.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: Delphi Pascal to C++

hutt18-Feb-06 7:46

hutt

18-Feb-06 7:46

Thanks for the answer Mike.

What about WideChar and WideString? These must be data types in DelphiPascal?
WideChar = TCHAR?
So the first struct would be:

struct WideText
{
  TCHAR[20] Text;
  Byte Len;
};

But with WideString I have no idea.

//Patrik

Re: Delphi Pascal to C++

Michael Dunn18-Feb-06 9:45

Michael Dunn

18-Feb-06 9:45

I assume WideChar is a Unicode character, in C that is wchar_t. For a Unicode string, use std::wstring unless you're comfortable with C-style strings.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Getting source-code text from the VS.Net IDE

Virtek17-Feb-06 22:37

Virtek

17-Feb-06 22:37

Hi.

I'm trying to get the text from the text-editor of another process (VS.Net) but it return nothing.

This is my code:

<br />
HWND hwnd = (HWND)0x008803AC; // This is the VsTextEditPane class handle of VS.Net<br />
<br />
char Data[500];<br />
SendMessage(hwnd, WM_GETTEXT, (WPARAM)500, (LPARAM)Data);<br />
MessageBox(NULL, Data, "The Control Text", MB_OK); // Data is Empty !!! Why ?<br />
<br />

any idia why the WM_GETTEXT doesn't work ?

Thanx

Re: Getting source-code text from the VS.Net IDE

Michael Dunn18-Feb-06 5:35

Michael Dunn

18-Feb-06 5:35

The window might not be designed to respond to WM_GETTEXT. See this blog post[^] for more details.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: Getting source-code text from the VS.Net IDE

Virtek18-Feb-06 6:44

Virtek

18-Feb-06 6:44

Thanks for the respond.

I've tried both ways: SendMessage and GetWindowText, although GetWindowText doesn't work for controls outside the calling process.

both return an empty string Frown | :(

Maybe this is because the text doesn't resides on that "special place" and the only way accessing VsTextEditPane is through the COM interface?

Re: Getting source-code text from the VS.Net IDE

Michael Dunn18-Feb-06 9:46

Michael Dunn

18-Feb-06 9:46

Virtek wrote:
Maybe this is because the text doesn't resides on that "special place" and the only way accessing VsTextEditPane is through the COM interface?

That'd be my guess.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

SubclassWindow question

Yak7717-Feb-06 19:04

Yak77

17-Feb-06 19:04

Hi,

I have created an MFC owner drawn control (Derived from CButton) that needs to do some initialization after it is created or subclassed. If the user explicitly calls MyCtrl.Create( .... ), I can handle the OnCreate() message in my control, so no problems.

However, if the user attaches the control through DDX, this results in SubclassWindow being called and OnCreate() is never called. I know you can handle PreSubclassWindow() before the window is actually subclassed, but I need to do some initialization after it is subclassed. So Is there anyway in my class to know after it has subclassed a window?

Thanks in advance for any help.

Re: SubclassWindow question

Michael Dunn18-Feb-06 5:37

Michael Dunn

18-Feb-06 5:37

You can override SubclassWindow(). Call the base class SubclassWindow(), then do your special processing after that call returns.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

embedding resource inside win32 dll

act_x17-Feb-06 18:21

act_x

17-Feb-06 18:21

Say I have a binary resource / text file . Is there a way i can embedded this as part of my VC 6 created DLL .

Now I have a similar project which can be compiled as a static library . TO be able to access the resource (.rc)

I need to access the resources by obtaining the Application handle by doing something like

AfxGetApp()->LoadResource

For a static lib this will point to the application that links using this library . Is there a way I can still access my embedded resources ?

Engineering is the effort !

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.