something different :p

ok i have been looking around msdn and the best i could find was GetWindowsDirectory()

which is not exactly what i am looking for... here is what i would like to be able to do, i would like to be able to determine using a function the drive letter of the HD or partition where windows has been installed eg: "C:\"

thank you for your time :)

Quote:

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Originally posted by ZerOrDie
ok i have been looking around msdn and the best i could find was GetWindowsDirectory()

which is not exactly what i am looking for... here is what i would like to be able to do, i would like to be able to determine using a function the drive letter of the HD or partition where windows has been installed eg: "C:\"

thank you for your time :)

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This works in 2000 & XP...if you need it for 98/95 and it doesnt work, write back and I will get another way of doing it

Code:

---

#include <iostream>
#include <windows.h>
using std::cout;
using std::endl;

int main(){

        DWORD dwSize = ExpandEnvironmentStrings("%SYSTEMDRIVE%",
                NULL,0);//Getsize of string needed
        if(!dwSize){
                cout << "Error" << endl;
                return 1;
        }

        char *szBuff = new char[dwSize];//create buffer to hold result
        if(!szBuff){
                cout << "Error" << endl;
                return 1;
        }

        if(!ExpandEnvironmentStrings("%HOMEDRIVE%",
                szBuff,dwSize)){//Get information
                cout << "Error" << endl;
                return 1;
        }

        cout << "Main Drive is " << szBuff << endl;

        delete [] szBuff;//Cleanup!!!


        return 0;
}

---

i was actually aiming for portability between all the recent series of windows eg: 95-xp

let me know if there is a better to do this :p

unfortunatly i wont work on 98 :p "%HOMEDRIVE%" is the output :(

Is windows programming between different versions different frequently, or not?

Quote:

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Originally posted by Govtcheez
Is windows programming between different versions different frequently, or not?

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Unfortunately yes...Win 95 was brought out after the first NT to fill a large gap in the market of machines that did not have the facilities to run WinNT....it's API was drastically cut down and as far as I have read it was only supposed to be a temporary measure...

Unfortunatley it took off and left NT (the system it was a strip-down of) behind......98 & ME more or less implement the same API (few more added on here and there).

So a lot of the really neat aspects of NT are not allowed in 95/98/ME..

Back to the problem....I cant think off hand of a way to directly get this info, but you could always get the system directory path and chop it down with one of the standard string functions.....like so.

Code:

---

#include <iostream>
#include <windows.h>
#include <cstring>
using std::cout;
using std::endl;

int main(){

        DWORD dwSize = GetSystemDirectory(NULL,0);//Getsize of string needed
        if(!dwSize){
                cout << "Error" << endl;
                return 1;
        }

        char *szBuff = new char[dwSize];//create buffer to hold result
        if(!szBuff){
                cout << "Error" << endl;
                return 1;
        }

        if(!GetSystemDirectory(szBuff,dwSize)){//Get information
                        cout << "Error" << endl;
                        delete [] szBuff;
                        return 1;
        }

        dwSize = strcspn(szBuff,"\\");

        szBuff[dwSize] = NULL;

        cout << "Main Drive is " << szBuff << endl;

        delete [] szBuff;//Cleanup!!!


        return 0;
}

---

i was actually thinking of that before i posted this and was whishing for something a little less hackish :p but if there is no better way i guess it shall do thank you fordy :)


oh yah fordy if you dont mind what degrees would you posses im just interested :p attending university myself :p