How can I get the total physical memory in C#?

Question

I am using the GlobalMemoryStatusEx function to retrieve information about memory, but this function doesn\'t work correctly. It returns 0 for all properties. I

Answer 1

I find my mistake from: http://www.pinvoke.net/default.aspx/kernel32/GlobalMemoryStatusEx.html

I Changed

internal static extern bool GlobalMemoryStatusEx(ref MEMORYSTATUSEX lpBuffer);

To

static extern bool GlobalMemoryStatusEx([In, Out] MEMORYSTATUSEX lpBuffer);

and changed

GlobalMemoryStatusEx(ref statEX);

To

GlobalMemoryStatusEx(statEX);

It work correctly. Tanks