C++/CLI How to Display Ram Info in GB

Wami007 296

private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e) {
ManagementObjectSearcher searcher("select * from Win32_Processor");
ManagementObjectSearcher searcher1("select * from Win32_VideoController");
ManagementObjectSearcher searcher2("select * from Win32_TotalVisibleMemory");
for each (ManagementObject ^ d in searcher.Get())
{
lb1->Text = d["Name"]->ToString();
break;
}
for each (ManagementObject ^ d in searcher1.Get())
{
lb2->Text = d["Name"]->ToString();
break;
}
for each (ManagementObject ^ d in searcher2.Get())
{
lb3->Text = d["Capacity"]->ToString();
break;
}
}

Hello...

This Code Show to me ram size in bytes but i need make it like "8 GB"

Accepted answer

Wami007 296 Reputation points

2021-02-15T19:40:01.567+00:00

Answer Is It, Thanks ^_^

ManagementObjectSearcher searcher2("select * from Win32_OperatingSystem");

for each (ManagementObject ^ d in searcher2.Get())
{
unsigned long long size = System::Convert::ToUInt32(d["TotalVisibleMemorySize"]);

if (size >= 1'000'000)
{
lb3->Text = (size / 1'000'000) + " GB";
}
else
{
lb3->Text = size + " bytes";
}
}
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2 additional answers

Viorel 116.6K Reputation points

2021-02-15T16:49:35.203+00:00
Check if this works:

unsigned long long size = System::Convert::ToUInt64( d["Capacity"] ); if( size >= 1'000'000'000 ) { lb3->Text = ( size / 1'000'000'000 ) + " GB"; } else { lb3->Text = size + " bytes"; }
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Wami007 296 Reputation points

2021-02-15T19:10:02.533+00:00

For PhysicalMemory Class, works but shows only 4gb & for TotalVisibleMemory Class i get Error

Viorel 116.6K Reputation points

2021-02-15T19:13:24.633+00:00

Your initial code uses Win32_TotalVisibleMemory, which you said that it works.

Which new code did you try and what new errors did you get?

Wami007 296 Reputation points

2021-02-15T19:16:34.187+00:00

Yas It Works, but my ram size is 8gb it show 4gb

Viorel 116.6K Reputation points

2021-02-15T19:28:06.217+00:00

Probably even lbl3->Text = d[“Capacity”]->ToString() shows a number that corresponds to 4 GB.

Which number did you get with Win32_TotalVisibleMemory?

Also try the Win32_OperatingSystem and its TotalVisibleMemorySize property, but multiply it by 1024 (i.e. ‘size *= 1024’).

Wami007 296 Reputation points

2021-02-15T19:37:11.81+00:00

So I was Change Class To OperatingSystem and it has already Uint64(Total Visible Memory) we need Change Decleration

Wami007 296 Reputation points

2021-02-15T19:44:04.287+00:00

Thanks, Your Code helped to me...
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Castorix31 84,471 Reputation points

2021-02-15T16:57:15.707+00:00
You can use StrFormatByteSize which rounds the bytes and formats the string
(#include <shlwapi.h>
(#pragma comment(lib, "Shlwapi") )

Test :

String^ sMemory = d["Capacity"]->ToString(); marshal_context context; LPCTSTR pwsMemory = context.marshal_as<const TCHAR*>(sMemory); TCHAR wsMemory[32] = TEXT(""); StrFormatByteSize(_wtof(pwsMemory), wsMemory, 32); String^ sMemoryNew = gcnew System::String(wsMemory);
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Wami007 296 Reputation points

2021-02-15T19:15:39.547+00:00

for your solution this error: E1986 an ordinary pointer to a C++/CLI ref class or interface class is not allowed ap C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\um\ObjIdl.h 12151
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C++/CLI How to Display Ram Info in GB

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