C / C++ / MFC

How to Check Dektop Window is the current Active Window?.

25-Mar-09 2:44

p_1960 wrote:
May i know from where can i get that exe...?

It comes with Visual Studio.

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Nitheesh George23-Mar-09 20:59

Nitheesh George

23-Mar-09 20:59

Hi,

I am doing application in which i want to know whether the Desktop window is the current active window or Not. How can i do this. Is GetForeGroundWindow() is a solution?.

thanks

Nitheesh.

Jose Jo Martin

http://www.simpletools.co.in

Re: How to Check Dektop Window is the current Active Window?.

David Crow24-Mar-09 3:14

Re: How to Check Dektop Window is the current Active Window?.

24-Mar-09 3:14

Have you tried:

if (GetActiveWindow() == GetDesktopWindow())
    ...

Nitheesh George24-Mar-09 4:06

Nitheesh George

24-Mar-09 4:06

Hi David,

Thanks for your reply. I tried using the GetForeGroundWindow but that didn't work.

thanks

Nitheesh

Jose Jo Martin

http://www.simpletools.co.in

Re: How to Check Dektop Window is the current Active Window?.

David Crow24-Mar-09 5:58

Re: How to Check Dektop Window is the current Active Window?.

24-Mar-09 5:58

Assuming you meant GetForegroundWindow(), I don't recall suggesting it.

Anyway, what does it return? Have you compared that window handle with those in Spy++?

Nitheesh George25-Mar-09 5:03

Nitheesh George

25-Mar-09 5:03

Hi David,

I tried by using GetActiveWindow() but MSDN says

"The GetActiveWindow function retrieves the window handle to the active window attached to the calling thread's message queue." . So i am getting NULL when my application's window is not the current window.

Do u have any suggestion?.

thanks.

Nitheesh

Jose Jo Martin

http://www.simpletools.co.in

PropertySheet Not move.

Le@rner23-Mar-09 20:34

Le@rner

23-Mar-09 20:34

Hi all,

i m creating a propertysheet by using a class drived from property sheet.

its works fine but its not move.

please tell me wat can i do.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: PropertySheet Not move.

David Crow24-Mar-09 3:15

Re: writing to text files

24-Mar-09 3:15

"_$h@nky_" wrote:
its works fine but its not move.

Which means what?

writing to text files

Dercio23-Mar-09 19:48

Dercio

23-Mar-09 19:48

How do i write to a text file with out erasing the previous data on the same text file

Dercio@C++

Eytukan23-Mar-09 19:58

Re: writing to text files

23-Mar-09 19:58

You should write it in append mode.

like in C++,

include<fstream>

std::ofstream ofs("mtfile.txt",ios::app);
ofs<<"Hi";
ofs.close()

ios::app says it's append mode. But just a question, Do you have a C++ book on hand?

He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

«_Superman_»23-Mar-09 23:39

«_Superman_»

23-Mar-09 23:39

In the fopen function set the mode parameter to "a" or "a+"

«_Superman_»
I love work. It gives me something to do between weekends.

passing by reference

Dercio23-Mar-09 19:45

Dercio

23-Mar-09 19:45

why do we sometimes need to pass by reference, a parameter of a function

Dercio@C++

Eytukan23-Mar-09 19:56

23-Mar-09 19:56

1.Passing by parameter ensures, you don't create multiple copies.
2.As you don't make copies, it saves memory and be faster.
3.When you change something to the reference, it would mean you are changing the actual object. So serves the purpose.
4. The same can be done using pointers, but reference are better in many ways. The major advantage is that you dont need to check for NULL every time.

He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

Jijo.Raj23-Mar-09 19:59

Jijo.Raj

23-Mar-09 19:59

Hello Dercio,

1) To avoid creating unnecessary temporary copy of variable while calling functions.
2) More user friendly method than pointers to get data back from functions. For instance

void GetString( CString& Value ) 
{
   Value = "I've changed the value.";
}
...
CString csString;
GetString( csString );

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

led mike23-Mar-09 21:12

led mike

23-Mar-09 21:12

Dercio wrote:
why do we sometimes need to pass by reference, a parameter of a function

I will answer that question for you if you will answer my question.

Q: Why do people sometimes need to ask questions in internet forums for which there are massive amounts of existing information on the internet and in books which they could choose to read?

CPallini23-Mar-09 22:32

CPallini

23-Mar-09 22:32

Passing by reference is the sissy's way to pass a pointer.
--The Klingon Programmer
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]

Eytukan23-Mar-09 23:10

23-Mar-09 23:10

Then what about reference to pointers? It's still sissy? Roll eyes | :rolleyes:

He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

Drag and drop between ListBox

CPallini23-Mar-09 23:21

CPallini

23-Mar-09 23:21

It's sissy's silly. Big Grin | :-D

AnithaSubramani23-Mar-09 19:31

AnithaSubramani

23-Mar-09 19:31

Hi All,

I need the sample code for drag and drop between ListBox.

Pls help me........

Regards,

Anitha

Re: Drag and drop between ListBox

Eytukan23-Mar-09 20:06

Re: Drag and drop between ListBox

23-Mar-09 20:06

Check Here^[^] Uses OLE.

Without OLE[^]

He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

David Crow24-Mar-09 3:18

How to get handle of PowerPoint window from taskbar?

24-Mar-09 3:18

Did you time-warp completely past this?

Md. Ali Naser Khan23-Mar-09 19:25

Md. Ali Naser Khan

23-Mar-09 19:25

I am using PowerPoint automation to display PowerPoint file from my project. But sometimes the PowerPoint file is displaying behind my main application. How can I get the handle of the PowerPoint window from my project?

Re: How to get handle of PowerPoint window from taskbar?

Eytukan23-Mar-09 20:00