C / C++ / MFC

16-Jan-12 22:16

Hi,

I'm working with a C++ project and have created a new .h file that contains typedef of new types. How do I use the new types in another class?

C++

#ifndef COMMONSETTINGS_H_
#define COMMONSETTINGS_H_


    typedef enum
    {
        XX = 0,
        YY,
        ZZ
    } ProductType;

#endif /* COMMONSETTINGS_H_ */

And the class that uses the type ProductType

C++

class TestClass
{
public:
    //! Constructor
    TestClass();

    //! Desctructor
    virtual ~TestClass();

private:
    ProductType product;
};

How do I do to use ProductTyp in TestClass? Now I get compile erro since TestClass can not find ProductType.

What is the best way to solve this? I want to declare new types in a file and use the types in several other classes.

/Olof

Richard MacCutchan16-Jan-12 23:05

Richard MacCutchan

16-Jan-12 23:05

Stupid question, but did you #include the header file in your compilation unit?

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

marca29216-Jan-12 23:18

16-Jan-12 23:18

Yes.

Jochen Arndt16-Jan-12 23:05

Jochen Arndt

16-Jan-12 23:05

Enumerations did not need the typedef keyword. Use

C++

enum ProductType
{
 XX,
 YY,
 ZZ
};

You should also think about moving your common settings into those classes they are belonging to (e.g. the class that acts according to the ProductType enumeration). This is better C++ style and makes your code modules better portable to other projects.

To use such class specific enumerations from other classes, prefix them with the class name (e.g. MyClass::ProductType).

Joe

marca29216-Jan-12 23:27

16-Jan-12 23:27

I use this solution, then it's working.

S p k 52116-Jan-12 23:10

S p k 521

16-Jan-12 23:10

please include that headerfile..

marca29216-Jan-12 23:17

CreateProcess with Vista and 740 / Create Multiple Threads

16-Jan-12 23:17

I already include that header file

jkirkerx16-Jan-12 9:04

Re: CreateProcess with Vista and 740 / Create Multiple Threads

16-Jan-12 9:04

I read the UAC article on CodeProject. So I want to see what others are using to elevate when using CreateProcess on Windows Vista, maybe Windows 7, when I get to testing on it.

I'm using CreateProcess to run PkgMgr.exe, but it wants elevated privileges 740.

Plus I want to spawn 2 threads, one to run the progress bar, and one to run the CreateProcess.

Tried _beginThread, but I was only able to get 1 working at a time.

Albert Holguin16-Jan-12 9:25

Re: CreateProcess with Vista and 740 / Create Multiple Threads

16-Jan-12 9:25

There shouldn't be any thread creating issues related to UAC... I use them all over the place, haven't had an issue, after all, they're all part of the same process... CreateProcess() I imagine does require the elevated privileges since you're spawning another process other than what the user selected to run.

jkirkerx16-Jan-12 10:15

Re: CreateProcess with Vista and 740 / Create Multiple Threads

16-Jan-12 10:15

I didn't think of it that way.

Perhaps I should get their credentials in a dialog box, and run CreateProcessWLogon.

ShellExecuteEx works, it's checks for permission, and goes, but is hard to track when it's done.

Albert Holguin17-Jan-12 4:00

Re: CreateProcess with Vista and 740 / Create Multiple Threads

17-Jan-12 4:00

You could do it whatever way works best for you AND your user... for example, if you expect your average user to not have admin privileges on his machine, then you should probably avoid adding any code that's going to require admin level privileges (unless you absolutely have to).

jkirkerx17-Jan-12 6:35

Re: CreateProcess with Vista and 740 / Create Multiple Threads

17-Jan-12 6:35

I'm going to leave the code the way it is for now.

I ran CreateProcess first, and checked for an error, then used ShellExecute if error 740 comes up. I'll conduct more testing on Windows 7 and Server 2008 to see how it works out.

Albert Holguin17-Jan-12 7:29

Re: CreateProcess with Vista and 740 / Create Multiple Threads

17-Jan-12 7:29

Good luck

jkirkerx17-Jan-12 10:08

Re: CreateProcess with Vista and 740 / Create Multiple Threads

17-Jan-12 10:08

Didn't work out.

Any system changes requires a UAC elevation, so I went ahead and made a dialog box asking for credentials that I can pass to CreateProcess with Login. So I will play nice with UAC and adhere to the purpose of it. I just hope I get it right this time.

Now I can use the luck.

Albert Holguin17-Jan-12 11:13

Converting big integer value to string

17-Jan-12 11:13

UAC is a pain in the butt... but ultimately, it's Windows trying to recreate the same, more secure, method of operations that's been used in a lot of Linux distros for a while now. Should mean security in the long run... headaches in the short term.

Coder Block15-Jan-12 23:22

Coder Block

15-Jan-12 23:22

Hi All,
I want convert BIG integer value to string
for that i used
_strtoi64
that convert values still 9,223,372,036,854,775,807

but for big value greated than "9,223,372,036,854,775,807" it gives wrong value

have i convert greated than "9,223,372,036,854,775,807" value to string??. .

Richard MacCutchan15-Jan-12 23:42

Richard MacCutchan

15-Jan-12 23:42

You cannot convert values greater than the maximum allowed for a 64 bit integer.

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Jochen Arndt15-Jan-12 23:57

Jochen Arndt

15-Jan-12 23:57

You already got answers to your same question in the Quick Answers question at [^]

CPallini16-Jan-12 2:59

CPallini

16-Jan-12 2:59

Either the title or your explanation is wrong. I guess you need to convert a string representing a very big number to, well, a big integer variable.
As Jochen pointed out, we already answered your question at QA.
However, if you really don't want to use a big integer library then may you roll you own version of, say, strtoi128, i.e. a function converting the given string into the 128 bit binary representation of the number (you may mimic the method used at school to perform division).

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]

Albert Holguin16-Jan-12 9:25

16-Jan-12 9:25

If it doesn't exist... make it yourself... +5

CPallini16-Jan-12 9:37

CPallini

16-Jan-12 9:37

Thank you.
However, I realize it would be a bit difficult for a newbie.

Albert Holguin16-Jan-12 10:15