C / C++ / MFC

8-May-10 11:34

I was using Afx earlier on in my project!
But since I hate MFC, I rewrote the segments that were using the CFile and replace them with WriteFile.

However when I decided to remove the Afx.h header.
It gave me an error during recompilation.

1>main.obj : error LNK2001: unresolved external symbol __imp__SHStrDupW@8
1>C:\Users\Administrator\Documents\Visual Studio 2010\Projects\Win32\Release\Win32.exe : fatal error LNK1120: 1 unresolved externals

Since the SH reminded me of the shell APIs I looked up the function.

SH String Duplicate, which I'm not using at all in my code.

Re: Afx.h / Win32

Garth J Lancaster8-May-10 13:25

Garth J Lancaster

8-May-10 13:25

maybe the 'depends' MS tool will tell you what your dependancies actually are - obviously something in your code or being used by your code is using this

'g'

Re: Afx.h / Win32

Fareed Rizkalla8-May-10 16:15

Localization for languages using XML

8-May-10 16:15

Well I got my hands on the application!
But I don't know where to start.
Tried profiling, but it is halted by these errors.

Error: At least one module has an unresolved import due to a missing export function in an implicitly dependent module.
Error: Modules with different CPU types were found.
Warning: At least one delay-load dependency module was not found.
Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.

Re: Afx.h / Win32

Stephen Hewitt8-May-10 20:59

Stephen Hewitt

8-May-10 20:59

It's a link error, so everything compiled correctly (you're including the correct header). The linker can't find the definition of the function SHStrDup; looks like you not linking to the correct import library. A quick look at the docmentation shows that you should be linking to "Shlwapi.lib". Either add it to the list of libraries you're linking to or add the following line somewhere:

#pragma comment(lib, "Shlwapi.lib")

Steve

punyah20108-May-10 9:02

punyah2010

8-May-10 9:02

hi,

I need to do language localization using XML in VC++ (MFC).

I need to do mapping using XML file and i need to scan the XML file for the desired language, so that my output would be in my desired language.

I have no idea, how to go about it.
Please Support.

Thanks,
Punyah

CPallini8-May-10 9:53

CPallini

8-May-10 9:53

You know that you need C++ and XML but have no idea on how to do it? That's funny, IMHO.
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]

punyah20108-May-10 10:34

punyah2010

8-May-10 10:34

Yes, because got some guidelines from my manager that it will be done using XML and the project is already in MFC vc++. so, will you please help, if u can.
Thanks.

CPallini8-May-10 11:17

CPallini

8-May-10 11:17

Well, you may create XML files similar to string tables, with each language you support having it's own (or more than one) XML table.
Smile | :)

Iain Clarke, Warrior Programmer

Iain Clarke, Warrior Programmer8-May-10 22:24

8-May-10 22:24

A better approach that xml is explained in this article:
Resource DLLs and Language Selection Menu[^]

If nothing else, reading that article will help you understand some of your challenges.

With xml, you'll have to parse it, and change the text in every element in any dialog manually... Your code will be brittle.

I hope your manager has some cunning plan in mind. Or has he just heard that xml is a good storage method? And likes buzzwords?

Iain.

I have now moved to Sweden for love (awwww).

RegGetValue / Win32

Fareed Rizkalla8-May-10 8:25

image processing toolkits | batch image processing

8-May-10 8:25

DWORD cchData = MAX_VALUE_NAME;
char* achData;

if (!RegGetValue(hKey, NULL, L"Left", RRF_RT_REG_SZ, NULL, achData, &cchData))
	xPos = atoi(achData);

Only getting 1 character! The first on the far left. Unsure | :~

Re: RegGetValue / Win32

C^hris L^osinger8-May-10 8:50

C^hris L^osinger

8-May-10 8:50

you have to provide a buffer that's big enough to hold the data from RegGetValue. an uninitialized pointer isn't enough.

Re: RegGetValue / Win32

Fareed Rizkalla8-May-10 8:59

C++ Pointer Help [Solved]

8-May-10 8:59

tried

char achData[MAX_VALUE_NAME];

But still only one character!

Re: RegGetValue / Win32

Kelly Herald8-May-10 9:13

Kelly Herald

8-May-10 9:13

How about using TCHAR instead of char. Sounds like your program is being compiled using unicode.

TCHAR achData[MAX_VALUE_NAME];

Kelly Herald
Software Developer

Tom Moore8-May-10 2:08

Tom Moore

8-May-10 2:08

Hi, its been a while since I've posted here Smile | :)

.

I've come back to C++ after doing quite a lot of scripting in Python though Scripting is still a passion of mine but enough about scripting.

I read an article about Memory Management in C++ the other day and some one wrote the code about borrowing a object through a reference even though it was created on the free store.

I'm mixed up about the various syntaxes heres some examples of code im mixed up with.

Robot.hpp

#include <iostream>
class Robot{
   public: void Speak(){std::cout << "Hello\n";}
 }

main.cpp

  #include <iostream>
  #include "Robot.hpp"

  void RobotSpeak(Robot& robot); // Calls robot.Speak()
  void RobotSpeak2(Robot*& robot); // Calls robot->Speak()
  void RobotSpeak3(Robot** robot); // I imagine robot->Speak()
  void RobotSpeak4(Robot* robot); // I imagine robot->Speak() again
 
int main(){ return 0; }

When and how would you use RobotSpeak(Robot&) on a object created on the free store and when would you use the others.

Many Thanks in Advance.
Tom

modified on Saturday, May 8, 2010 9:55 AM

Stuart Dootson8-May-10 3:27

Stuart Dootson

8-May-10 3:27

Soo….something like:

Robot* myRobot = new Robot;
RobotSpeak(*myRobot);

?

Oh, and BTW - the calling syntax for RobotSpeak3 would be (*robot)->Speak()

The only parameter passing mechanisms I'd consider using would be those used in RobotSpeak and RobotSpeak4…although I would tend to use a const reference and declare Speak as const if it doesn't modify Robot:

Robot.hpp

#include <iostream>
class Robot{
   public: void Speak() const {std::cout << "Hello\n";} // Use 'const' because the method doesn't alter the Robot instance
};

main.cpp

void RobotSpeak(Robot const & robot) // use a const reference to Robot to indicate the function doesn't modify robot
{
   robot.Speak();
}

int main()
{
   Robot* myRobot = new Robot;
   RobotSpeak(*myRobot);
   return 0;
}

HTH!

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

Tom Moore8-May-10 3:37

Tom Moore

8-May-10 3:37

Thanks for replying Smile | :)

.

Whats the difference between passing a object
by derefencing a pointed object and using
a using a Reference To Pointer, and a Pointer Argument,
like RobotSpeak(Robot const & robot) and RobotSpeak(Robot const *& robot) and also RobotSpeak(Robot const ** robot).

Tom

Stuart Dootson8-May-10 3:43

Stuart Dootson

8-May-10 3:43

The only time I would use a reference to a pointer or a pointer to a pointer would be so I could modify the passed in pointer. And then, you need to be sure that you don't leak any memory.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!