unit1.cpp

on/off monitor open/close cd/dvd drive show total RAM memory

//---------------------------------------------------------------------------

#include <vcl.h>
#include<mmsystem.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
mciSendString("Set cdaudio door open wait", NULL, 0, Handle);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button2Click(TObject *Sender)
{
mciSendString("Set cdaudio door closed wait", NULL, 0, Handle);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button3Click(TObject *Sender)
{
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, 2);
       
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button4Click(TObject *Sender)
{
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, -1);
        
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button5Click(TObject *Sender)
{
MEMORYSTATUS mem;
memset((void*)&mem,0,sizeof(mem));
mem.dwLength=sizeof(mem);
GlobalMemoryStatus(&mem);
MessageDlg("Total memory:"+IntToStr(mem.dwTotalPhys),
mtInformation, TMsgDlgButtons() << mbOK, 0);
        
}
//---------------------------------------------------------------------------