error: 'osver' was not declared in the scope

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C++

// Get the OS version on your PC

#include <windows.h>
#include <iostream>
#include <dos.h>
#include <string.h>

using namespace std;

int main(void)
{
    OSVERSIONINFO osver;

    
    osver.dwOSVersionInfoSize = sizeof(osver);
    if (GetVersionEx(&osver))
    {
        
        if (osver.dwPlatformId == VER_PLATFORM_WIN32s)
            cout << "Win32 ";
        else if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)
        {
            if (osver.dwMinorVersion == 0 && (strchr(osver.szCSDVersion,'B') == NULL) && (strchr(osver.szCSDVersion,'C') == NULL))
                cout << "Windows 95 ";
            else if (osver.dwMinorVersion == 0 && (strchr(osver.szCSDVersion,'B') != NULL))
                cout << "Windows 95 OSR 2 ";
            else if (osver.dwMinorVersion == 0 && (strchr(osver.szCSDVersion,'C') != NULL))
                cout << "Windows 95 OSR 2.5 ";
            else if (osver.dwMinorVersion == 10 && (strchr(osver.szCSDVersion,'A') == NULL))
                cout << "Windows 98 ";
            else if (osver.dwMinorVersion == 10 && (strchr(osver.szCSDVersion,'A') != NULL))
                cout << "Windows 98 Second Edition ";
            else if (osver.dwMinorVersion == 90)
                cout << "Windows Millenium Edition ";
            else
                cout<<"Unknown Windows ";
        }
        else if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT){
            cout << "Windows NT ";
            cout << osver.dwMajorVersion << "." << osver.dwMinorVersion << "." << (osver.dwBuildNumber & 0xffff) << osver.szCSDVersion << endl;
        }
        else 
        {
            cout << "Cannot gain version information." << endl;
        }   
            
    }
system("pause");
return 0;

}

Here are the errors:
error: 'osver' was not declared in this scope
error: expected primary-expression before ';' token

Any Help will be much appriciated

Thank You,

Posted 19-May-12 19:00pm

Anikan1297

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Comments

Richard MacCutchan 20-May-12 3:44am

Which line does the error occur on?

Richard MacCutchan 20-May-12 7:26am

I just pasted your code into VC++ 2010 Express and it built and ran just fine. Given that you are testing for Windows 95 I suspect you may be using a very old compiler.

Anikan1297 20-May-12 13:39pm

And i'm actually using sample code, im just starting out and trying to learn the language.

Anikan1297 20-May-12 13:31pm

Well, i'm using CodeBlocks and its not working. Why is it different with each IDE?

Richard MacCutchan 21-May-12 2:50am

Sorry, I have never used CodeBlocks; why not use VC++ 2010 Express as I suggested above. It's developed and supported by Microsoft and used by many people in this forum.

Anikan1297 21-May-12 19:43pm

Sure thing, i'll start expirimenting with it. :D

Thanks for the Advice,

2 solutions

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Sergey Chepurin · Answer 1 · 2012-05-19T22:55:00

This code builds with Unicode set -

#include <windows.h>
#include <iostream>
#include <dos.h>
#include <string.h> 
#include <iostream>
using namespace std;
int main(void)

{
	OSVERSIONINFO osver;
	osver.dwOSVersionInfoSize = sizeof(osver);
	if (GetVersionEx(&osver))

	{
		if (osver.dwPlatformId == VER_PLATFORM_WIN32s)
			cout <<"Win32 ";
		else if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)

		{
			if (osver.dwMinorVersion == 0 && (wcschr(osver.szCSDVersion,'B') == NULL)
				&& (wcschr(osver.szCSDVersion,'C') == NULL))
				cout <<"Windows 95 ";
			else if (osver.dwMinorVersion == 0 && (wcschr(osver.szCSDVersion,'B') != NULL))
				cout <<"Windows 95 OSR 2 ";
			else if (osver.dwMinorVersion == 0 && (wcschr(osver.szCSDVersion,'C') != NULL))
				cout <<"Windows 95 OSR 2.5 ";
			else if (osver.dwMinorVersion == 10 && (wcschr(osver.szCSDVersion,'A') == NULL))
				cout <<"Windows 98 ";
			else if (osver.dwMinorVersion == 10 && (wcschr(osver.szCSDVersion,'A') != NULL))
				cout <<"Windows 98 Second Edition ";
			else if (osver.dwMinorVersion == 90)
				cout <<"Windows Millenium Edition ";
			else
				cout<<"Unknown Windows ";
		}
		else if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
			cout <<"Windows NT ";
		cout <<osver.dwMajorVersion<<"."<<osver.dwMinorVersion<<"."
			<<(osver.dwBuildNumber & 0xffff)<<osver.szCSDVersion<<endl;
	}
	else


	{
		cout <<"Cannot gain version information."<<endl;
	}
	system("pause");
	return 0;
}

By the way, if it says something like: Windows NT 6.1.7600002BFB08, this means Windows 7 (see List of Microsoft Windows versions[^])

Maciej Los · Answer 2 · 2012-05-20T00:11:00

Solution 2

This is not an answer at all, but a little tip.
The better way to choose OS version (in your code), instead of if, is to use Switch command[^]

C#

switch (expression)
{
   case constant-expression:
      statement
      jump-statement
   [default:
      statement
      jump-statement]
}

More at: MSDN[^]

Posted 20-May-12 0:11am

Maciej Los

Comments

Anikan1297 20-May-12 13:37pm

Thanks for the Advice!