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nnxion · Apr 20th, 2006, 10:04 AM

Well you can just open the taks manager (taskmgr.exe / ctrl+alt+del), but this migth be useful in certain circumstances. (Or maybe you can't find it on google as fast.) I basically changed the printf's from MSDN to cout.

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// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/memory/base/globalmemorystatusex.asp

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

using namespace std;

int main()
{
	const int MB = 1048576; // A megabyte is 1,048,576 bytes
	MEMORYSTATUSEX statex;

	statex.dwLength = sizeof (statex);
	GlobalMemoryStatusEx (&statex);

	cout << statex.dwMemoryLoad << " percent of memory is in use." << endl;
	cout << endl;
	cout << "There are " << statex.ullTotalPhys/MB << " total megabytes of physical memory." << endl;
	cout << "There are " << statex.ullAvailPhys/MB << " free megabytes of physical memory." << endl;
	cout << endl;
	cout << "There are " << statex.ullTotalPageFile/MB << " total megabytes of paging file." << endl;
	cout << "There are " << statex.ullAvailPageFile/MB << " free megabytes of paging file." << endl;
	cout << endl;
	cout << "There are " << statex.ullTotalVirtual/MB << " total megabytes of virtual memory." << endl;
	cout << "There are " << statex.ullAvailVirtual/MB << " free megabytes of virtual memory." << endl;
	cout << endl;
	cout << "There are " << statex.ullAvailExtendedVirtual/MB << " free megabytes of virtual memory." << endl;

	return 0;
}

Prm753 · Apr 20th, 2006, 12:04 PM

What did you compile this in? I tried to compile it in Dev-Cpp, but it had errors. However, MSDN's C version of the program compiled without complaining. Still pretty cool, as I can see what the program is doing by looking at the code.

nnxion · Apr 20th, 2006, 2:03 PM

Quote:

Originally Posted by Prm753

What did you compile this in? I tried to compile it in Dev-Cpp, but it had errors. However, MSDN's C version of the program compiled without complaining. Still pretty cool, as I can see what the program is doing by looking at the code.

I have VS 2005 (Professional), I don't have Dev-C++. Maybe the hyperlink causes errors. Try removing it. Otherwise tell me what it says. Yeah the program is super-simple.

Cache · Apr 20th, 2006, 3:30 PM

Quote:

Originally Posted by Prm753

What did you compile this in? I tried to compile it in Dev-Cpp, but it had errors. However, MSDN's C version of the program compiled without complaining. Still pretty cool, as I can see what the program is doing by looking at the code.

If you took a second to look in 'winbase.h' that ships with Dev-C++ you would see:

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typedef struct _MEMORYSTATUS {
	DWORD dwLength;
	DWORD dwMemoryLoad;
	DWORD dwTotalPhys;
	DWORD dwAvailPhys;
	DWORD dwTotalPageFile;
	DWORD dwAvailPageFile;
	DWORD dwTotalVirtual;
	DWORD dwAvailVirtual;
} MEMORYSTATUS,*LPMEMORYSTATUS;
#if (_WIN32_WINNT >= 0x0500)
typedef struct _MEMORYSTATUSEX {
	DWORD dwLength;
	DWORD dwMemoryLoad;
	DWORDLONG ullTotalPhys;
	DWORDLONG ullAvailPhys;
	DWORDLONG ullTotalPageFile;
	DWORDLONG ullAvailPageFile;
	DWORDLONG ullTotalVirtual;
	DWORDLONG ullAvailVirtual;
	DWORDLONG ullAvailExtendedVirtual;
} MEMORYSTATUSEX, *LPMEMORYSTATUSEX;
#endif

So, the following will fix the problem:

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#define _WIN32_WINNT 0x0500

Seriously, learn to dig a little. It'll save countless hours of fumbling around.

Prm753 · Apr 20th, 2006, 5:01 PM

Yea, I should have looked at the header file.

Apr 20th, 2006, 10:04 AM	#1
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	Very simple memory status program in C++ (Windows) Well you can just open the taks manager (taskmgr.exe / ctrl+alt+del), but this migth be useful in certain circumstances. (Or maybe you can't find it on google as fast.) I basically changed the printf's from MSDN to cout. (Toggle Plain Text) // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/memory/base/globalmemorystatusex.asp #include <iostream> #include <windows.h> using namespace std; int main() { const int MB = 1048576; // A megabyte is 1,048,576 bytes MEMORYSTATUSEX statex; statex.dwLength = sizeof (statex); GlobalMemoryStatusEx (&statex); cout << statex.dwMemoryLoad << " percent of memory is in use." << endl; cout << endl; cout << "There are " << statex.ullTotalPhys/MB << " total megabytes of physical memory." << endl; cout << "There are " << statex.ullAvailPhys/MB << " free megabytes of physical memory." << endl; cout << endl; cout << "There are " << statex.ullTotalPageFile/MB << " total megabytes of paging file." << endl; cout << "There are " << statex.ullAvailPageFile/MB << " free megabytes of paging file." << endl; cout << endl; cout << "There are " << statex.ullTotalVirtual/MB << " total megabytes of virtual memory." << endl; cout << "There are " << statex.ullAvailVirtual/MB << " free megabytes of virtual memory." << endl; cout << endl; cout << "There are " << statex.ullAvailExtendedVirtual/MB << " free megabytes of virtual memory." << endl; return 0; } // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/memory/base/globalmemorystatusex.asp #include <iostream> #include <windows.h> using namespace std; int main() { const int MB = 1048576; // A megabyte is 1,048,576 bytes MEMORYSTATUSEX statex; statex.dwLength = sizeof (statex); GlobalMemoryStatusEx (&statex); cout << statex.dwMemoryLoad << " percent of memory is in use." << endl; cout << endl; cout << "There are " << statex.ullTotalPhys/MB << " total megabytes of physical memory." << endl; cout << "There are " << statex.ullAvailPhys/MB << " free megabytes of physical memory." << endl; cout << endl; cout << "There are " << statex.ullTotalPageFile/MB << " total megabytes of paging file." << endl; cout << "There are " << statex.ullAvailPageFile/MB << " free megabytes of paging file." << endl; cout << endl; cout << "There are " << statex.ullTotalVirtual/MB << " total megabytes of virtual memory." << endl; cout << "There are " << statex.ullAvailVirtual/MB << " free megabytes of virtual memory." << endl; cout << endl; cout << "There are " << statex.ullAvailExtendedVirtual/MB << " free megabytes of virtual memory." << endl; return 0; } __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

Apr 20th, 2006, 12:04 PM	#2
Prm753 Professional Programmer Join Date: Oct 2005 Location: United States Posts: 447 Rep Power: 4	What did you compile this in? I tried to compile it in Dev-Cpp, but it had errors. However, MSDN's C version of the program compiled without complaining. Still pretty cool, as I can see what the program is doing by looking at the code. __________________ The world's first athletic computer geek! The home of PrProgramsStudios How not to post a question: <-- Please don't reply

Apr 20th, 2006, 5:01 PM	#5
Prm753 Professional Programmer Join Date: Oct 2005 Location: United States Posts: 447 Rep Power: 4	Yea, I should have looked at the header file. __________________ The world's first athletic computer geek! The home of PrProgramsStudios How not to post a question: <-- Please don't reply

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Programming Forums > Projects > Show Off Your Open Source Projects

Very simple memory status program in C++ (Windows)