C / C++ / MFC Discussion Boards

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

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

David Crow

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++?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

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

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

David Crow

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++

Re: writing to text files

Eytukan23-Mar-09 19:58

Eytukan

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

Re: writing to text files

«_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++

Re: passing by reference

Eytukan23-Mar-09 19:56

Eytukan

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

Re: passing by reference

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.

Re: passing by reference

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?

Re: passing by reference

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]

Re: passing by reference

Eytukan23-Mar-09 23:10

Eytukan

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

Re: passing by reference

CPallini23-Mar-09 23:21

CPallini

23-Mar-09 23:21

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

Drag and drop between ListBox

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

Eytukan

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

Re: Drag and drop between ListBox

David Crow24-Mar-09 3:18

David Crow

24-Mar-09 3:18

Did you time-warp completely past this?

How to get handle of PowerPoint window from taskbar?

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

Eytukan

23-Mar-09 20:00

You can keep your application behind the ppt by using

this->SetWindowPos(&this->wndBottom,,,,,)

Also to get your ppt window, you can use FindWindow("WindowName",NULL);

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

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

Md. Ali Naser Khan24-Mar-09 0:24

Md. Ali Naser Khan

24-Mar-09 0:24

_Application app;
app.CreateDispatch( "PowerPoint.Application" );

.........
SlideShowSettings m_pptSlideShowSettings;
.........

// Run the slide
m_pptSlideShowSettings.Run();

How can I get the handle of the running slide window?

What will be the "WindowName" name in the function FindWindow("WindowName",NULL);

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

Eytukan24-Mar-09 1:16

Eytukan

24-Mar-09 1:16

Sorry for the typo that's the classname of the applicaiton. If you want to catch using the name displayed on the title bar, you should past it as the second argument.

Open a notepad, minimize it. Then run the below code:

HWND h = FindWindow(NULL,"Notepad");
ShowWindow(h,SW_MAXIMIZE);

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

Adding Images in Combobox

Rakesh523-Mar-09 18:33

Rakesh5

23-Mar-09 18:33

Hi,

I would like to make a customized combobox.

My requirement is this: i want to add images beside the text in the combobox.For Example, combobox should contain list of countrynames and their flags image..
hope am making it clear.. if not, please click the following link for sample application

http://www.codeguru.com/cpp/controls/combobox/colourpickers/article.php/c1793[^]

Thanks,

Rakesh S

Re: Adding Images in Combobox

Chandrasekharan P23-Mar-09 18:43

Chandrasekharan P

23-Mar-09 18:43

Understood your requirement, now what needs to be done?? now that you have got an sample project what are you waiting for?

Re: Adding Images in Combobox

Rakesh523-Mar-09 18:50

Rakesh5

23-Mar-09 18:50

They are actually adding an image like RGB values by using COLORREF..

Now my images are in my computer. what class should be called for to add those images in that RGB position?

Rakesh S

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