ZoogieZork9-Jan-04 17:14

9-Jan-04 17:14

luddet wrote:
c:\Program\Microsoft Visual Studio .NET\Vc7\include\functional(139): error C2676: binary '<' : 'const std::string' does not define this operator or a conversion to a type acceptable to the predefined operator

This is the key part. There's no operator< defined for std::string. You can either define an operator for it yourself, or (better for strings) use a hash_map instead of a map (in this case you may have to define a hash function for std::string).

- Mike

Re: map<string,string> just won't work

luddet9-Jan-04 17:17

luddet

9-Jan-04 17:17

Hi,

Are you absolutely sure that there is no operator

Re: map<string,string> just won't work

ZoogieZork9-Jan-04 17:50

ZoogieZork

9-Jan-04 17:50

Oops, yeah, I missed that. No more trying to answer questions when I'm dead tired Smile | :)

- Mike

Re: map<string,string> just won't work

luddet9-Jan-04 17:53

luddet

9-Jan-04 17:53

And I missed to include <string>. No more trying to program when I'm dead tired Smile | :)

/Ludde

Re: map<string,string> just won't work

Garth J Lancaster9-Jan-04 17:18

Garth J Lancaster

9-Jan-04 17:18

I'm not near a compiler at the moment (sigh, Its Saturday here in Aus and Im in the computer-room), but I think you have to declare the map elements ...

try :-

// Declare A Map Of string->string
map<string, const string> m;

(The 'const' may/may not be required).... I've never had much luck doing an insert like you've tried - I always use 'make_pair' (usually becuase I have an object pointer on the right hand side) as in :-

m.insert ( make_pair ( "Tom", "Jerry" ) );

'G'

Re: map<string,string> just won't work

luddet9-Jan-04 17:19

luddet

9-Jan-04 17:19

Hmmm...
I've tried the make_pair too, and it doesn't work either Frown | :(

thanks
Ludde

Re: map<string,string> just won't work

Jörgen Sigvardsson10-Jan-04 7:20

Jörgen Sigvardsson

10-Jan-04 7:20

If you make the mapped_type const, then the map is rather unusable. Nor should you make the key_type const either, since std::map will make the key const where appropriate.

--
If there was a problem, Yo, I'll solve it!
Check out the hook while my DJ revolves it.

Re: map<string,string> just won't work

Garth J Lancaster11-Jan-04 16:00

Garth J Lancaster

11-Jan-04 16:00

yeah, I was having a brain-fart at the time I wrote that ... it was so bloody cold in the computer room I was surprised I could type at all !!

Jörgen Sigvardsson wrote:
Nor should you make the key_type const either, since std::map will make the key const where appropriate.

hmmm - but wouldnt you keep it const ?? - I thought it would be appropriate all the time ... I always thought of the key being const

map<string, string> m;
m["Fred"] = "Nurk";

I can understand changing "Nurk" to "Scumbag".. Im not sure on the implications of changing the "Fred" Key ..

I must still be in "mode=dense"
'G'

Re: map<string,string> just won't work

Jörgen Sigvardsson11-Jan-04 23:29

Jörgen Sigvardsson

11-Jan-04 23:29

Garth J Lancaster wrote:
hmmm - but wouldnt you keep it const ?? - I thought it would be appropriate all the time ... I always thought of the key being const

Yes, but std::map does that for you. If you look at all interface points of the map container, it'll make sure no keys are mutated. Check out map::value_type and you'll see.

--
I am perpetual, I keep the country clean.

Re: map<string,string> just won't work

Michael Dunn9-Jan-04 17:20

Michael Dunn

9-Jan-04 17:20

You need to #include <string> for the compiler to know the contents of the string class.

--Mike--
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Re: map<string,string> just won't work

Garth J Lancaster9-Jan-04 17:24

Garth J Lancaster

9-Jan-04 17:24

nice one Mike - I missed the bleeding obvious !
sigh .. wish this server would hurry up so I can get outta here - it s f_ing freezing !!

'G'

Re: map<string,string> just won't work

luddet9-Jan-04 17:24

luddet

9-Jan-04 17:24

hmmm...

this is most humiliating... Wink | ;)

so simple

I could have sworn I had included it!

dang!

*bangs his head against the wall*

Thank you very much!!

regards
/Ludde

Re: map<string,string> just won't work

Prakash Nadar10-Jan-04 1:02

Prakash Nadar

10-Jan-04 1:02

Hi,
I saw a long list of answers to this query and one from micheal dunn, when i read the question i knew and was obvious that you have missed to include the string, and for some reason before reading all the answers i knew the rite one will come from Mike, and so it was Smile | :)

I Touched Osama Bin Ladens Bushy Beard

Re: map<string,string> just won't work

Jörgen Sigvardsson10-Jan-04 7:30

Jörgen Sigvardsson

10-Jan-04 7:30

But how could he create a std::map<int, std::string>..? Confused | :confused:

--
If there was a problem, Yo, I'll solve it!
Check out the hook while my DJ revolves it.

shortcut using installshield

Anonymous9-Jan-04 12:56

Anonymous

9-Jan-04 12:56

i have packaged an VC++ created EXE and created a shortcut for it using InstallShield . Now when i launch the shortcut from the start menu , the application comes up but gives a message saying it cannot find an INI file which is located in the same folder as the EXE .

Now if i run the EXE directly from the folder it works fine .

In my code the reference to the INI file is a "./MyInIFile.ini !

How do i resolve this ?

Re: shortcut using installshield

Stefan Pedersen9-Jan-04 13:53

Stefan Pedersen

9-Jan-04 13:53

Set the "Start in" property of the shortcut.
Or:
Save a INSTALLDIR key to the registry and load the ini relative to that instead of current dir.

(I would prefer method 2, it's not as sensitive to "users" as method 1)

And if the paths that I have followed/have tread against the flow/there is no need for sorrow
I am coming home
Return, Crüxshadows

CATEGORYINFO & ICatRegister

suiram409-Jan-04 11:25

suiram40

9-Jan-04 11:25

I try to register a categoty using ATL/COM
After registering the registry looks pretty OK.
OleView diaplays the categoty
In Left Tree Pane: Grouped by Ccategory (child tree list)
I cannot se muy category, but in detailed right pane list-view
I can see my category beeing there.
The bad thing is when I enumerate the category info
I cannot find it.
All COM calls returrn S_OK;

// here Is the registration code
--------------------------------------------------
USES_CONVERSION;

CComPtr<icatregister> catInfo;
HRESULT hr = catInfo.CoCreateInstance(CLSID_StdComponentCategoriesMgr);
if(FAILED(hr))return hr;

// ensure the category registration
CATEGORYINFO catinfo;
catinfo.catid = MY_CATID;
catinfo.lcid = 0x0409 ;
::wcscpy(catinfo.szDescription, T2W (catDescription));
catInfo->RegisterCategories(1, &catinfo);

CComPtr<icatregister> catInfo;
HRESULT hr = catInfo.CoCreateInstance(CLSID_StdComponentCategoriesMgr);
if(FAILED(hr))return hr;

CATID catid = catidIn;
catInfo->RegisterClassImplCategories(CLSID_MyDLL,1,&catid);

// here is the enumaration code
--------------------------------------------------
CComPtr<icatinformation> ci;
HRESULT hr = ci.CoCreateInstance(CLSID_StdComponentCategoriesMgr);
if(FAILED(hr)) return;
CComPtr<ienumcategoryinfo> spEci;

if(SUCCEEDED(ci->EnumCategories(GetUserDefaultLCID(), &spEci)))
{
ULONG nRet = 0;
CATEGORYINFO cif;

while(SUCCEEDED(spEci->Next(1,&cif,&nRet)) && nRet==1)
{
if (cif.catid == NY_CATID)
{
TRACE("found \r\n");
}
}
}

Re: CATEGORYINFO & ICatRegister

K ARUN KUMAR29-Apr-11 4:09

K ARUN KUMAR

29-Apr-11 4:09

I think in if comparision you have used NY_CATID. Previously it is MY_CATID. So verify it once.

Problem with VB DLL to use with VC++

Chirag Chauhan9-Jan-04 10:27

Chirag Chauhan

9-Jan-04 10:27

Hi guys,

I want to use the function lies in a DLL created using VB having a signature

EncodeThis(ByVal sIn As String,ByVal sKey As String,ByRef sOut As String,ByRef oLen as Long)

in a VC++ i m trying to call the DLL using LoadLibrary() Function and try to use the function as

// Variable Declaration........
LPCSTR data;
LPCSTR key;
LPCSTR result;
LONG len;
.............
Loading DLL
.............
Get pointer to function "EncodeThis" say ptr
................
ptr(data,key,&result,&len);

Then,........i will be getting an Error as "The value of ESP was not ptoperly saved which is the result of calling a function declared with one calling convention with function pointer declared with a different calling convention".

I know there will be some mistake in Function signature, but doesn't figure it out, so.........if anybody plz help me then i will be very thankful to him.

chirag

chirag.

Re: Problem with VB DLL to use with VC++

Stefan Pedersen9-Jan-04 13:59

Stefan Pedersen

9-Jan-04 13:59

Last time I checked, VB was using the PASCAL calling convention.
You just need to tell VC about it Smile | :)

And if the paths that I have followed/have tread against the flow/there is no need for sorrow
I am coming home
Return, Crüxshadows

Re: Problem with VB DLL to use with VC++

Chirag Chauhan9-Jan-04 14:47

Chirag Chauhan

9-Jan-04 14:47

Thanks for the reply.
But as i m new to VC++, so just let me know how to tell the VC about thet VB using PASCAL convention.
and plz...review the problem again, and i think that there will be signature problem.
Anyway..i m just frustrated with this problem and want to solve this problem as early as possible, so if possible reply with VC++ code snippet.
Again thnks.

Mouse Hook Problem

Zee man9-Jan-04 9:45

Zee man

9-Jan-04 9:45

Hi All,

I am getting this weird problem for the past 4 days. Anyone seen this before?

I am trying to monitor mouse events on a specific application (Windows XP calculator calc.exe). I have set a hook on the Hwnd pointer of calc using

hook = SetWindowsHookEx(WH_GETMESSAGE,
(HOOKPROC)msghook,
hInst,
GetWindowThreadProcessId(hWnd, NULL));

and then I use the following to detect messages

static LRESULT CALLBACK msghook(UINT nCode, WPARAM wParam, LPARAM lParam)
{
char text[10];
if(nCode < 0)
{ /* pass it on */
CallNextHookEx(hook, nCode, wParam, lParam);
return 0;
} /* pass it on */
LPMSG msg = (LPMSG)lParam;
switch(msg->message)
{
case WM_LBUTTONDOWN:
case WM_NCLBUTTONDOWN:
PostMessage(hWndServer, UWM_LBUTTONDOWN, WM_LBUTTONDOWN, msg->lParam);
break;
case WM_LBUTTONUP:
case WM_NCLBUTTONUP:
PostMessage(hWndServer, UWM_LBUTTONUP, WM_LBUTTONUP, msg->lParam);
break;
case WM_MOUSEMOVE:
case WM_NCMOUSEMOVE:
PostMessage(hWndServer, UWM_MOUSEMOVE, WM_MOUSEMOVE, msg->lParam);
break;
}
return CallNextHookEx(hook, nCode, wParam, lParam);
}

What happens is that WM_LBUTTONDOWN comes in fine but the WM_LBUTTONUP never comes in, instead a mousemove message shows up (EVEN WHEN THE MOUSE IS NOT MOVING). Its very erratic. Sometimes the WM_LBUTTONUP case does execute but very rarely. Am I doing something wrong?

If I use WH_MOUSE or WH_CBT instead of WH_GETMESSAGE, none of the cases gets called. Has anyone had this kind of problem before.

By the way my mouse is not faulty. I tried this code on a number of PCs with the same result.
Thanks in advance.

Regards,
Zahid

Re: Mouse Hook Problem

Joel Lucsy12-Jan-04 4:05

Joel Lucsy

12-Jan-04 4:05

Have you tried WH_CALLWNDPROC or WH_CALLWNDPROCRET?

--
Joel Lucsy

CIntArray in a structure

(Steven Hicks)ⁿ⁺¹9-Jan-04 9:38

(Steven Hicks)ⁿ⁺¹

9-Jan-04 9:38

How can I use a CIntArray in a struct, I'm using the struct in a CArray... heres the problem .. I have a lot of items... and then it has a sub item comprising of an unknown amount of integers (thats why I don't want to us a C array, adn i can't use int)

-Steven Hicks

CPA

CodeProjectAddict

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Re: CIntArray in a structure

Gary R. Wheeler10-Jan-04 9:25

Gary R. Wheeler

10-Jan-04 9:25

I can't find any references in either the October 2001 or the January 2004 MSDN's to CIntArray, so I created one. I tried this:

#include "afxtempl.h"
<br>
typedef CArray<int,int&> CIntArray;
<br>
struct StructType {
    CIntArray IntArray;
};
<br>
CArray<StructType,StructType&> Array;
<br>
...
<br>
Array.SetSize(5);
Array[3].IntArray.SetSize(4);
Array[3].IntArray[2] = 10;

and it compiles and runs just fine. What's the problem you're having?

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