C / C++ / MFC

Re: How to get current compiled file?

16-Dec-08 2:23

George_George wrote:
Yes. My question is, when a line like "foo.cpp is compiling" is displayed, does it mean the information above this line belongs to foo.cpp compiling process or the information after this line belongs to foo.cpp compiling process?

Starting with the line below "foo.cpp is compiling" all the lines (until "goo.cpp is compiling" Roll eyes | :rolleyes:

) belongs to foo.cpp compilation process.
Smile | :)

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George_George18-Dec-08 0:23

George_George

18-Dec-08 0:23

Thanks for your advice, CPallini!

Smart guy!

regards,
George

Download Data from Web Service using Win 32 C++

~Khatri Mitesh~15-Dec-08 2:06

~Khatri Mitesh~

15-Dec-08 2:06

Hi I am working on Pocket PC 5.0 Win 32 C++ application and i want to load data (images) from web service. how i use the web service using win 32 C++. and how i create the HTTP request. please suggest.
Thanks
Khatri Mitesh

~Khatri Mitesh
khatrimitesh@hotmail.com
Bikaner (Rajasthan)
INDIA

Re: Download Data from Web Service using Win 32 C++

Code-o-mat15-Dec-08 8:06

Code-o-mat

15-Dec-08 8:06

Learn about sockets and the HTTP protocol? There are tonns of docs around.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

CHtmlEditCtrl usage

William Engberts15-Dec-08 0:58

William Engberts

15-Dec-08 0:58

Hi everybody,

I am writing a dialog-based CMS in which I want the user to be able to edit part of the HTML pages with a WYSIWYG editor. I do so using CHtmlEditCtrl. It works, meaning that I can show the edit control, I can load HTML content into it and I can send commands to it (using stuff like m_ctrlHtml->ExecHelperNN(IDM_BOLD) However, I would also very much like the buttons in my toolbar to respond when the user changes the cursor location, (like the bold button getting the pressed state when appropriate, showing the correct font etc) rather then just being able to send commands from these buttons. However, I cannot seem to find the notification messages sent by CHtmlEditCtrl. Does anyone know how to find these??

Thanks in advance
William

Cant we develope a dll which can be work in both vista and XP?

WindowsPistha15-Dec-08 0:47

WindowsPistha

15-Dec-08 0:47

Hi All,

We have one dll which can be used in many Exes and different Operating systems.

At present i am having one requirement to support to get the LocalLow path in vista.
So I have implemented separate function for it.

I have used SHGetKnownFolderPath funciton to get the LocalLow path.
To compile the workspace , I have to use WINVER value as 0x0600.
IF we defined the WinVersion as 6 , DLL is not running in XP.

Developement Environment :VS 2005 & Vista Business.

//In Vista Expected output : C:\Users\bob\AppData\LocalLow\eGrabber\
//In XP Expceted output: C:\Documents and Settings\Smith\Application Data\eGrabber\

<br />
int GetCurrentUserLocalLowAppPath(LPTSTR szProfileDir,int dirlen )<br />
	{<br />
<br />
	memset(szProfileDir,0,dirlen);<br />
<br />
	 if(IsWinXP() == TRUE)<br />
		 {		<br />
			GetCurrentUserAppPath( szProfileDir, dirlen );<br />
		 }<br />
	 else if(IsVista() == TRUE)<br />
		 {<br />
                 	 PWSTR pszPath[1];<br />
                 	 SHGetKnownFolderPath(NULL,FOLDERID_LocalAppDataLow,0,NULL,pszPath);	<br />
                	//copying the pszPath to szProfileDir array	 <br />
		}<br />
         return 1;<br />
<br />
	}

Any idea how to achieve this.

Your suggestion welcomed ...

Thanks.

Re: Cant we develope a dll which can be work in both vista and XP?

Naveen15-Dec-08 0:58

Naveen

15-Dec-08 0:58

The only problem for not working the dll in windows XP is that, it is using a function(SHGetKnownFolderPath), that is not available in windows XP.

To solve this problem, instead of statically linking to the SHGetKnownFolderPath() function, dynamically call it. That is, using the LoadLibrary() and GetProcAddress() functions.

nave

[OpenedFileFinder] [My Blog]

Re: Cant we develope a dll which can be work in both vista and XP?

WindowsPistha15-Dec-08 3:51

WindowsPistha

15-Dec-08 3:51

Thanks Naveen.

Here is the code for it.

typedef HRESULT (WINAPI * SHGetKnownFolderPathFn)(REFKNOWNFOLDERID rfid, DWORD dwFlags, HANDLE hToken,PWSTR *ppszPath);

	PWSTR pszPath[1];
	SHGetKnownFolderPathFn shGetKnownFolrPth = NULL ;

        HINSTANCE hins = LoadLibrary("Shell32.dll");

 if(hins != NULL)
	 {		

shGetKnownFolrPth = (SHGetKnownFolderPathFn)::GetProcAddress(hins,"SHGetKnownFolderPath");
			 
	 if( shGetKnownFolrPth != NULL) 
			 {
			 shGetKnownFolrPth(FOLDERID_LocalAppDataLow,0,NULL,pszPath);
			 CString csData=pszPath[0]; // converting from wchar to ANSI.
			}
	}

Want struct parameter by default set to NULL

Wischkony15-Dec-08 0:37

15-Dec-08 0:37

Hi,
I was wondering if it is possible to set an struct parameter to NULL.
Something like this:

typedef struct _myStruct
{
  int a;
}myStruct;
...
//if i dont pass a parameter set the pointer to NULL
void func(myStruct *ms=NULL);
...
main()
{
myStruct mS;
...
func();
...
func(&mS);
...
}

Is something like this possible...

Thanks in advance...

ramana.g15-Dec-08 0:46

ramana.g

15-Dec-08 0:46

default parameter?? search for "default parameter"

Wischkony15-Dec-08 0:57

15-Dec-08 0:57

You are right, but i did it before posting the message. I knew it sounds like a common question, but i did not found any good solutions for my question.

I found an article which uses contructors for struct, i want to avoid this solution, i just need to get this parameter NULL....

I know also that how to get default parameters if i use something like int, float... but i need this for structs which seems to have an other behaviour.

:-/

ramana.g15-Dec-08 1:07

ramana.g

15-Dec-08 1:07

i used a pointer to class as default parameter in c++. i dont know about c

Wischkony15-Dec-08 1:11

15-Dec-08 1:11

You are right, classes would work, but it is not an option for me Frown | :(

Anyway, thank you

Maximilien15-Dec-08 0:49

Maximilien

15-Dec-08 0:49

yes, that's called "default arguments"

This signature was proudly tested on animals.

Wischkony15-Dec-08 1:09

15-Dec-08 1:09

okay, i did not knew that they were called default arguments.
(I thought default parameter was correct...)

But how can i handle structs???
I want to set an struct argument to NULL by default...

Hm...

CPallini15-Dec-08 0:54

15-Dec-08 0:54

C++ allows default arguments, see, for instance, [^].

Wischkony15-Dec-08 1:07

15-Dec-08 1:07

Oh ha,...sry

Maybe my question was not clearly.
I know how to handle default arguments(int,bool,float,double...)...but i dont know how to handle it for Structs!

CPallini15-Dec-08 1:43

15-Dec-08 1:43

It makes difference?
For instance:

void foo(MyStruct mystruct=MyStruct());

doesn't fit your needs?
Smile | :)

Wischkony15-Dec-08 2:06

15-Dec-08 2:06

Very good point...
but,

i use structs which also contains structs and many other items, so it would look like this:

void func(
          MyStruct mystruct=MyStruct(MyStruct2(),MyStruct3(),2,3,4,"anystring" )
          );

Am i right?? I think so.

AND another problem is, that if i want to check it in the function, if it is a default, so i have to provide an additional variable:

void func(
          MyStruct mystruct=MyStruct(MyStruct2(),MyStruct3(),2,3,4,"anystring",1 )
          );
...
void func(
MyStruct mystruct=MyStruct(MyStruct2(),MyStruct3(),2,3,4,"anystring",1 )
         )
{
if(mystruct.isDefault==1)//isDefault->last parameter
  {...}
else
  {...}
}

I hoped(and still hoping) there is an easier solution, but you are right, this would work.

CPallini15-Dec-08 2:23

15-Dec-08 2:23

Wischkony wrote:
use structs which also contains structs and many other items, so it would look like this:

void func( MyStruct mystruct=MyStruct(MyStruct2(),MyStruct3(),2,3,4,"anystring" ) );

Am i right?? I think so.

Yes, you may also override the MyStruct's default constructor to take care about.

Wischkony wrote:
AND another problem is, that if i want to check it in the function, if it is a default, so i have to provide an additional variable:

void func( MyStruct mystruct=MyStruct(MyStruct2(),MyStruct3(),2,3,4,"anystring",1 ) );...void func(MyStruct mystruct=MyStruct(MyStruct2(),MyStruct3(),2,3,4,"anystring",1 ) ){if(mystruct.isDefault==1)//isDefault->last parameter {...}else {...}}

Provided you've overridden the default MyStruct's constructor the way I told, you may also use the following test (you've also to override the == operator, of course):

if ( mistruct == MyStruct() )

Wischkony15-Dec-08 2:34

Re: Want struct parameter by default set to NULL [modified]

15-Dec-08 2:34

->Yes, you may also override the MyStruct's default constructor to take care about.
Yes, i know Smile | :)

By reading and writing answers, i am thinking more and more that this is a good solution and not a bad solution.
I was dreaming of an easy way like this:
void func(mystruct *ms=NULL);
But maybe this will stay a dream Wink | ;)

Thanks a lot for your time.

CPallini15-Dec-08 2:55

15-Dec-08 2:55

Wischkony wrote:
void func(mystruct *ms=NULL);

Well, you have also that option.
Smile | :)

modified on Monday, December 15, 2008 11:53 AM