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

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

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

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

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

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

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 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 attending university myself