Possible Duplicate: c++ using too much cpu my game uses over 50% of cpu.

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Asked: May 16, 20262026-05-16T10:41:22+00:00 2026-05-16T10:41:22+00:00

Possible Duplicate: c++ using too much cpu my game uses over 50% of cpu.

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Possible Duplicate:
c++ using too much cpu

my game uses over 50% of cpu. i found way to reduce the cpu to be 40-50% but i can’t find any other way to reduce it. i tried to use Code analyst profiler but it doesn’t give me any good information in my code where im using my cpu.
here is my code

// Xstrike.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "Xstrike.h"
#include <vector>

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                // current instance
TCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];            // the main window class name
RECT *rect;
const UINT_PTR EVERYTHING_ID=0x1;
const UINT_PTR LBUTTONDOWN_ID=0x3;
const UINT_PTR TDENEMIE1_ID=0x4;
const UINT_PTR TAENEMIE1_ID=0x5;
const UINT_PTR PROTECTED_ID=0x6;
int conno=2;
int health=0;
int life=3;
int score=0;
int level=1;
int protect=0;
int cursor=0;
HCURSOR hCursor[3];

// Forward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

struct Enemies
{
    int cEnemie1;
    int dEnemie1;
    int aEnemie1;
    int sEnemie1;
    int pEnemie1;
    bool e1;
    time_t now;
    time_t tEnemie1;
    vector <POINT> vS1Enemie1;
    vector <POINT> vS2Enemie1;
};

vector <POINT> vRegularShots;
Enemies Enemie1;
VOID installising()
{
    Enemie1.cEnemie1=0;
    Enemie1.dEnemie1=1;
    Enemie1.aEnemie1=0;
    Enemie1.sEnemie1=1;
    Enemie1.pEnemie1=550;
    Enemie1.e1=true;
    POINT pt;
    pt.x=0;
    pt.y=0;
    vRegularShots.push_back(pt);
}
VOID Paint(HDC hdc, HWND hWnd)
{
    int lifePos=200;
    hdc=GetDC(hWnd);
    HDC memDC=CreateCompatibleDC(hdc);
    HBITMAP hMemMap=CreateCompatibleBitmap(hdc, 225, 350);
    HBITMAP hOldMap=(HBITMAP)SelectObject(memDC, hMemMap);
    Graphics draw(memDC);

    // Images
    Image bg(L"bg.jpg");
    Image shot(L"RegularShots.png");
    Image iEnemie1(L"Enemie1.png");
    Image lifes(L"lifes.png");

    // Drawing
    draw.DrawImage(&bg, 0, 0);

    // if regular cursor
    if(cursor==0)
    {
        // Regular shots
        long s=vRegularShots.size();

        // Draw shots
        for(long index=0; index < (long)vRegularShots.size(); ++index) 
        { 
            draw.DrawImage(&shot, vRegularShots[index].x, vRegularShots[index].y);
        }

        // Update the shots
        for(long index=0; index < (long)vRegularShots.size(); ++index) 
        { 
            vRegularShots[index].y--;
        }

        // Delete Shots
        for(long index=0; index < (long)vRegularShots.size(); index++) 
        {
            if(vRegularShots[index].y<-16)
            {
                vRegularShots.erase(vRegularShots.begin()+index);
            }
        }

        // Create Enemies
        if(Enemie1.dEnemie1==0)
        {
            if(Enemie1.cEnemie1<2)
            {
                if(Enemie1.aEnemie1==0)
                {
                    SetTimer(hWnd, TAENEMIE1_ID, 550, NULL);
                }
                Enemie1.aEnemie1=1;
                Enemie1.cEnemie1++;
            }
            else
            {
                KillTimer(hWnd, TDENEMIE1_ID);
            }
            Enemie1.dEnemie1=1;
        }

        // Draw enemies
        for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); ++index) 
        {
            draw.DrawImage(&iEnemie1, Enemie1.vS1Enemie1[index].x, Enemie1.vS1Enemie1[index].y);
        }
        for(long index=0; index < (long)Enemie1.vS2Enemie1.size(); ++index) 
        {
            draw.DrawImage(&iEnemie1, Enemie1.vS2Enemie1[index].x, Enemie1.vS2Enemie1[index].y);
        }

        // Update enemies
        for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); index++) 
        {
            Enemie1.vS1Enemie1[index].x++;
            Enemie1.vS1Enemie1[index].y++;
        }
        for(long index=0; index < (long)Enemie1.vS2Enemie1.size(); index++) 
        {
            Enemie1.vS2Enemie1[index].x--;
            Enemie1.vS2Enemie1[index].y++;
        }

        // Delete enemies
        for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); index++) 
        {
            if(Enemie1.vS1Enemie1[index].x>225)
            {
                Enemie1.vS1Enemie1.erase(Enemie1.vS1Enemie1.begin()+index);
            }

            // Stop enemie1 timer
            if(Enemie1.vS1Enemie1.size()==0&&Enemie1.vS2Enemie1.size()==0)
            {
                KillTimer(hWnd, TAENEMIE1_ID);
            }
        }
        for(long index=0; index < (long)Enemie1.vS2Enemie1.size(); index++) 
        {
            if(Enemie1.vS2Enemie1[index].x<-21)
            {
                Enemie1.vS2Enemie1.erase(Enemie1.vS2Enemie1.begin()+index);
            }

            // Stop enemie1 timer
            if(Enemie1.vS1Enemie1.size()==0&&Enemie1.vS2Enemie1.size()==0)
            {
                KillTimer(hWnd, TAENEMIE1_ID);
            }
        }

        // player hits
        if(Enemie1.pEnemie1==550)
        {
            POINT pt;
            GetCursorPos(&pt);
            ScreenToClient(hWnd, &pt);
            for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); index++)
            {
                if(((pt.x+5)>=Enemie1.vS1Enemie1[index].x&&(pt.x+5)<=(Enemie1.vS1Enemie1[index].x+17)&&pt.y>=Enemie1.vS1Enemie1[index].y&&pt.y<=(Enemie1.vS1Enemie1[index].y+17))||((pt.x+15)>=Enemie1.vS1Enemie1[index].x&&pt.y>=Enemie1.vS1Enemie1[index].y&&pt.y<=(Enemie1.vS1Enemie1[index].y+17)&&(pt.x+14)<=(Enemie1.vS1Enemie1[index].x+17))||((pt.x+21)>=Enemie1.vS1Enemie1[index].x&&(pt.y+14)>=Enemie1.vS1Enemie1[index].y&&(pt.y+14)<=(Enemie1.vS1Enemie1[index].y+17)&&(pt.x+21)<=(Enemie1.vS1Enemie1[index].x+17))||((pt.x+23)>=Enemie1.vS1Enemie1[index].x&&(pt.y+22)>=Enemie1.vS1Enemie1[index].y&&(pt.y+22)<=(Enemie1.vS1Enemie1[index].y+17)&&(pt.x+23)<=(Enemie1.vS1Enemie1[index].x+17))||((pt.x+13)>=Enemie1.vS1Enemie1[index].x&&(pt.y+31)>=Enemie1.vS1Enemie1[index].y&&(pt.y+31)<=(Enemie1.vS1Enemie1[index].y+17)&&(pt.x+13)<=(Enemie1.vS1Enemie1[index].x+17))||(pt.x>=Enemie1.vS1Enemie1[index].x&&(pt.y+22)>=Enemie1.vS1Enemie1[index].y&&(pt.y+22)<=(Enemie1.vS1Enemie1[index].y+17)&&pt.x<=(Enemie1.vS1Enemie1[index].x+21))||((pt.x+3)>=Enemie1.vS1Enemie1[index].x&&(pt.y+14)>=Enemie1.vS1Enemie1[index].y&&(pt.y+14)<=(Enemie1.vS1Enemie1[index].y+21)&&(pt.x+3)<=(Enemie1.vS1Enemie1[index].x+21)))
                {
                    health+=30;
                    Enemie1.pEnemie1=0;
                    InvalidateRect(hWnd, rect, false);
                }
            }
            for(long index=0; index < (long)Enemie1.vS2Enemie1.size(); index++)
            {
                if(((pt.x+5)>=Enemie1.vS2Enemie1[index].x&&(pt.x+5)<=(Enemie1.vS2Enemie1[index].x+17)&&pt.y>=Enemie1.vS2Enemie1[index].y&&pt.y<=(Enemie1.vS2Enemie1[index].y+17))||((pt.x+15)>=Enemie1.vS2Enemie1[index].x&&pt.y>=Enemie1.vS2Enemie1[index].y&&pt.y<=(Enemie1.vS2Enemie1[index].y+17)&&(pt.x+14)<=(Enemie1.vS2Enemie1[index].x+17))||((pt.x+21)>=Enemie1.vS2Enemie1[index].x&&(pt.y+14)>=Enemie1.vS2Enemie1[index].y&&(pt.y+14)<=(Enemie1.vS2Enemie1[index].y+17)&&(pt.x+21)<=(Enemie1.vS2Enemie1[index].x+17))||((pt.x+23)>=Enemie1.vS2Enemie1[index].x&&(pt.y+22)>=Enemie1.vS2Enemie1[index].y&&(pt.y+22)<=(Enemie1.vS2Enemie1[index].y+17)&&(pt.x+23)<=(Enemie1.vS2Enemie1[index].x+17))||((pt.x+13)>=Enemie1.vS2Enemie1[index].x&&(pt.y+31)>=Enemie1.vS2Enemie1[index].y&&(pt.y+31)<=(Enemie1.vS2Enemie1[index].y+17)&&(pt.x+13)<=(Enemie1.vS2Enemie1[index].x+17))||(pt.x>=Enemie1.vS2Enemie1[index].x&&(pt.y+22)>=Enemie1.vS2Enemie1[index].y&&(pt.y+22)<=(Enemie1.vS2Enemie1[index].y+17)&&pt.x<=(Enemie1.vS2Enemie1[index].x+21))||((pt.x+3)>=Enemie1.vS2Enemie1[index].x&&(pt.y+14)>=Enemie1.vS2Enemie1[index].y&&(pt.y+14)<=(Enemie1.vS2Enemie1[index].y+21)&&(pt.x+3)<=(Enemie1.vS2Enemie1[index].x+21)))
                {
                    health+=30;
                    Enemie1.pEnemie1=0;
                    InvalidateRect(hWnd, rect, false);
                }
            }
        }

        if(health>225)
        {
            cursor=1;
            SetTimer(hWnd, PROTECTED_ID, 1000, NULL);
            life--;
            health=0;
            InvalidateRect(hWnd, rect, false);
        }

        // Hits
        for(long index=0; index < (long)vRegularShots.size(); index++)
        {
            for(long indexs=0; indexs < (long)Enemie1.vS1Enemie1.size(); indexs++)
            {
                if((vRegularShots[index].x>=Enemie1.vS1Enemie1[indexs].x && vRegularShots[index].y>=Enemie1.vS1Enemie1[indexs].y && vRegularShots[index].y<=(Enemie1.vS1Enemie1[indexs].y+17) && vRegularShots[index].x<=(Enemie1.vS1Enemie1[indexs].x+17))||(Enemie1.vS1Enemie1[indexs].x>=vRegularShots[index].x && Enemie1.vS1Enemie1[indexs].y>=vRegularShots[index].y && Enemie1.vS1Enemie1[indexs].y<=(vRegularShots[index].y+16) && Enemie1.vS1Enemie1[indexs].x<=(vRegularShots[index].x+5)))
                {
                    Enemie1.vS1Enemie1.erase(Enemie1.vS1Enemie1.begin()+indexs);
                    vRegularShots[index].y=-17;
                    score+=100;
                    // Stop enemie1 timer
                    if(Enemie1.vS1Enemie1.size()==0&&Enemie1.vS2Enemie1.size()==0)
                    {
                        KillTimer(hWnd, TAENEMIE1_ID);
                    }
                }
            }
            for(long indexs=0; indexs < (long)Enemie1.vS2Enemie1.size(); indexs++)
            {
                if((vRegularShots[index].x>=Enemie1.vS2Enemie1[indexs].x && vRegularShots[index].y>=Enemie1.vS2Enemie1[indexs].y && vRegularShots[index].y<=(Enemie1.vS2Enemie1[indexs].y+17) && vRegularShots[index].x<=(Enemie1.vS2Enemie1[indexs].x+17))||(Enemie1.vS2Enemie1[indexs].x>=vRegularShots[index].x && Enemie1.vS2Enemie1[indexs].y>=vRegularShots[index].y && Enemie1.vS2Enemie1[indexs].y<=(vRegularShots[index].y+16) && Enemie1.vS2Enemie1[indexs].x<=(vRegularShots[index].x+5)))
                {
                    Enemie1.vS2Enemie1.erase(Enemie1.vS2Enemie1.begin()+indexs);
                    vRegularShots[index].y=-17;
                    score+=100;
                    // Stop enemie1 timer
                    if(Enemie1.vS1Enemie1.size()==0&&Enemie1.vS2Enemie1.size()==0)
                    {
                        KillTimer(hWnd, TAENEMIE1_ID);
                    }
                }
            }
        }
    }

    // If protected
    if(cursor==1)
    {
        if(protect!=4)
        {
            // Regular shots

            // Draw shots
            for(long index=0; index < (long)vRegularShots.size(); ++index) 
            { 
                draw.DrawImage(&shot, vRegularShots[index].x, vRegularShots[index].y);
            }

            // Update the shots
            for(long index=0; index < (long)vRegularShots.size(); ++index) 
            { 
                vRegularShots[index].y--;
            }

            // Delete Shots
            for(long index=0; index < (long)vRegularShots.size(); index++) 
            {
                if(vRegularShots[index].y<-16)
                {
                    vRegularShots.erase(vRegularShots.begin()+index);
                }
            }
            // Delete Shots
        for(long index=0; index < (long)vRegularShots.size(); index++) 
        {
            if(vRegularShots[index].y<-16)
            {
                vRegularShots.erase(vRegularShots.begin()+index);
            }
        }

        // Create Enemies
        if(Enemie1.dEnemie1==0)
        {
            if(Enemie1.cEnemie1<2)
            {
                if(Enemie1.aEnemie1==0)
                {
                    SetTimer(hWnd, TAENEMIE1_ID, 550, NULL);
                }
                Enemie1.aEnemie1=1;
                Enemie1.cEnemie1++;
            }
            else
            {
                KillTimer(hWnd, TDENEMIE1_ID);
            }
            Enemie1.dEnemie1=1;
        }

        // Draw enemies
        for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); ++index) 
        {
            draw.DrawImage(&iEnemie1, Enemie1.vS1Enemie1[index].x, Enemie1.vS1Enemie1[index].y);
        }
        for(long index=0; index < (long)Enemie1.vS2Enemie1.size(); ++index) 
        {
            draw.DrawImage(&iEnemie1, Enemie1.vS2Enemie1[index].x, Enemie1.vS2Enemie1[index].y);
        }

        // Update enemies
        for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); index++) 
        {
            Enemie1.vS1Enemie1[index].x++;
            Enemie1.vS1Enemie1[index].y++;
        }
        for(long index=0; index < (long)Enemie1.vS2Enemie1.size(); index++) 
        {
            Enemie1.vS2Enemie1[index].x--;
            Enemie1.vS2Enemie1[index].y++;
        }

        // Delete enemies
        for(long index=0; index < (long)Enemie1.vS1Enemie1.size(); index++) 
        {
            if(Enemie1.vS1Enemie1[index].x>225)
            {
                Enemie1.vS1Enemie1.erase(Enemie1.vS1Enemie1.begin()+index);
            }

            // Stop enemie1 timer
            if(Enemie1.vS1Enemie1.size()==0&&Enemie1.vS2Enemie1.size()==0)
            {
                KillTimer(hWnd, TAENEMIE1_ID);
            }
        }
        }
        else
        {
            KillTimer(hWnd, PROTECTED_ID);
            cursor=0;
            protect=0;
        }
    }

    // Draw Lifes
    for(long index=0; index != life; index++)
    {
        draw.DrawImage(&lifes, lifePos, 275);
        lifePos-=30;
    }

    SolidBrush textColor(Color(255, 255, 54, 0));
    LinearGradientBrush linGrBrush(
    Point(1000, 20),
    Point(health, 20),
    Color(255, 255, 0, 0),     // opaque black 
    Color(0, 0, 0, 0));  // opaque red
    SolidBrush databrush(Color(0, 225, 0));

    draw.FillRectangle(&databrush, 0, 0, 225, 30);
    draw.FillRectangle(&linGrBrush, 0, 0, 225, 30);

    FontFamily courieNew(L"Courier New");
    Font font(&courieNew, 12, 0, UnitPixel);
    PointF pLevel(5.0f, 6.0f);
    PointF pScore(100.0f, 6.0f);
    WCHAR wLevel[11];
    WCHAR wScore[60];
    _swprintf(wLevel, L"Level : %d", level);
    _swprintf(wScore, L"Score : %d", score);
    draw.DrawString(wLevel, -1, &font, pLevel, &textColor);
    draw.DrawString(wScore, -1, &font, pScore, &textColor);

    BitBlt(hdc, 0, 0, 225, 350, memDC, 0, 0, SRCCOPY);
    ReleaseDC(hWnd, hdc);
    SelectObject(memDC, hOldMap);
    DeleteObject(hMemMap);
    DeleteDC(memDC);
}


int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);
    GdiplusStartupInput gdiplusStartupInput;
    ULONG_PTR           gdiplusToken;

    // TODO: Place code here.
    MSG msg;
    HACCEL hAccelTable;

    // Cursors
    hCursor[0]=LoadCursor(hInstance, MAKEINTRESOURCE(IDC_CURSOR));
    hCursor[1]=LoadCursor(hInstance, MAKEINTRESOURCE(IDC_PROTECTED));

    // Initialize GDI+.
    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);


    // Initialize global strings
    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadString(hInstance, IDC_XSTRIKE, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_XSTRIKE));

    // Main message loop:
    while (GetMessage(&msg, NULL, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    GdiplusShutdown(gdiplusToken);
    return (int) msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage are only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_XSTRIKE));
    wcex.hCursor        = LoadCursor(hInstance, MAKEINTRESOURCE(IDC_CURSOR));
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCE(IDC_XSTRIKE);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassEx(&wcex);
}

//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;

   hInst = hInstance; // Store instance handle in our global variable

   hWnd = CreateWindow(szWindowClass, szTitle, (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX),
      CW_USEDEFAULT, 0, 225, 350, NULL, NULL, hInstance, NULL);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND  - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;
    POINT pt;

    switch (message)
    {
    case WM_CREATE:
        installising();
        SetTimer(hWnd, EVERYTHING_ID, 1, NULL);
        break;
    case WM_COMMAND:
        wmId    = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        case IDM_ABOUT:
            DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
            break;
        case IDM_EXIT:
            DestroyWindow(hWnd);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
        break;
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        Paint(hdc, hWnd);
        EndPaint(hWnd, &ps);
        break;
    case WM_LBUTTONDOWN:
        GetCursorPos(&pt);
        ScreenToClient(hWnd, &pt);
        if(conno==1)
        {
            conno++;
        }
        else
        {
            pt.x+=18;
            conno--;
        }
        vRegularShots.push_back(pt);
        SetTimer(hWnd, LBUTTONDOWN_ID, 350, NULL); 
        InvalidateRect(hWnd, rect, false);
        break;
    case WM_LBUTTONUP:
        KillTimer(hWnd, LBUTTONDOWN_ID);
        break;
    case WM_TIMER:
        switch(wParam)
        {
        case EVERYTHING_ID:
            if(Enemie1.e1==true)
            {
                Enemie1.now=time(NULL);
                Enemie1.tEnemie1=Enemie1.now+1;
                Enemie1.e1=false;
            }
            Enemie1.now=time(NULL);
            if(Enemie1.now==Enemie1.tEnemie1)
            {
                SetTimer(hWnd, TDENEMIE1_ID, 550, NULL);
            }
            InvalidateRect(hWnd, rect, false);
            break;
        case LBUTTONDOWN_ID:
            GetCursorPos(&pt);
            ScreenToClient(hWnd, &pt);
            if(conno==1)
            {
                if(cursor==0)
                {
                    conno++;
                }
                else if(cursor==1)
                {
                    pt.x+=2;
                    conno++;
                }
            }
            else
            {
                if(cursor==0)
                {
                    pt.x+=18;
                }
                else if(cursor==1)
                {
                    pt.x+=15;
                }
                conno--;
            }
            vRegularShots.push_back(pt);
            break;
        case TDENEMIE1_ID:
            pt.y=5;
            pt.x=-21;
            Enemie1.vS1Enemie1.push_back(pt);
            pt.y=5;
            pt.x=219;
            Enemie1.vS2Enemie1.push_back(pt);
            Enemie1.dEnemie1=0;
            InvalidateRect(hWnd, rect, false);
            break;
        case TAENEMIE1_ID:
            if(Enemie1.pEnemie1!=550)
            {
                Enemie1.pEnemie1+=550;
            }
            InvalidateRect(hWnd, rect, false);
            break;
        case PROTECTED_ID:
            protect++;
            break;
        }
        break;
    case WM_SETCURSOR:
         SetCursor(hCursor[cursor]);
         return 0;
         break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    UNREFERENCED_PARAMETER(lParam);
    switch (message)
    {
    case WM_INITDIALOG:
        return (INT_PTR)TRUE;

    case WM_COMMAND:
        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
        {
            EndDialog(hDlg, LOWORD(wParam));
            return (INT_PTR)TRUE;
        }
        break;
    }
    return (INT_PTR)FALSE;
}

if you know good profiler that is free, or any idea how to reduce my cpu usage.

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1 Answer

Editorial Team · Answer 1 · 2026-05-16T10:41:22+00:00

I don’t know about profiling Windows code, but your program is so small and simple (in absolute terms – it’s a lot to read on stackoverflow), that you could easily instrument it manually. I Googled up these functions:

LARGE_INTEGER from;
LARGE_INTEGER to;

QueryPerformanceCounter (&from);
// do stuff
QueryPerformanceCounter (&to);

LARGE_INTEGER elapsed = to - from;

LARGE_INTEGER hertz;
QueryPerformanceFrecuency (&hertz);

Use your understanding of where the program might spend time to refine your placement of timers, drilling down on the slow code.

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Possible Duplicate: c++ using too much cpu my game uses over 50% of cpu.

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