WindowsMouseClicker/Clicker.cpp at master · jackyromano/WindowsMouseClicker · GitHub

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#include "Clicker.h"
#include "Mmsystem.h"
#include "resource.h"

#pragma comment(lib, "Winmm.lib")

Clicker* Clicker::m_instance = nullptr;

INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);

void Clicker::Init(HWND hwnd)
{
    m_hwnd = hwnd;

    InitContextMenu();
    InitClickSound();
    InitMouseHook();

    m_initialized = true;
}

void Clicker::Show()
{
    if (!m_initialized) return;

    POINT curPoint;
    GetCursorPos(&curPoint);
    int clicked = TrackPopupMenu(m_hMenu, TPM_RETURNCMD, curPoint.x, curPoint.y, 0, m_hwnd, NULL);
    if (clicked != 0) {
        switch (clicked) {
        case Clicker::EXIT:
            PostQuitMessage(0);
            break;
        case Clicker::ENABLE:
            EnableClickFeedback();
            break;
        case Clicker::DISABLE:
            DisableClickFeedback();
            break;
        case Clicker::ABOUT:
            DialogBox(NULL, MAKEINTRESOURCE(IDD_ABOUTBOX), NULL, About);
            break;
        }
    }
}

void Clicker::EnableClickFeedback()
{
    m_enabled = true;
}

void Clicker::DisableClickFeedback()
{
    m_enabled = false;
}

LRESULT CALLBACK Clicker::LowLevelMouseProc(_In_ int    nCode, _In_ WPARAM wParam, _In_ LPARAM lParam)
{
    if (Clicker::Instance()->m_enabled) {
        HMODULE hMod;
        GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCTSTR)Clicker::LowLevelMouseProc, &hMod);

        switch (wParam) {
        case WM_LBUTTONDOWN:
        case WM_RBUTTONDOWN:
        case WM_MBUTTONDOWN:
            PlaySound(Clicker::Instance()->m_clickWave, NULL, SND_MEMORY | SND_ASYNC | SND_SYSTEM);
            break;
        }
    }
    return CallNextHookEx(NULL, nCode, wParam, lParam);
}

void Clicker::InitContextMenu()
{
    m_hMenu = CreatePopupMenu();
    AppendMenu(m_hMenu, MF_STRING, Clicker::EXIT, L"Exit");
    AppendMenu(m_hMenu, MF_STRING, Clicker::ENABLE, L"Enable");
    AppendMenu(m_hMenu, MF_STRING, Clicker::DISABLE, L"Disable");
    AppendMenu(m_hMenu, MF_SEPARATOR, -1, L"");
    AppendMenu(m_hMenu, MF_STRING, Clicker::ABOUT, L"About");
}

void Clicker::InitClickSound()
{
    HANDLE hResInfo = FindResource(GetModuleHandle(NULL), L"IDI_CLICK", L"WAVE");
    if (hResInfo == NULL) {
        MessageBox(NULL, L"Failed to find click resource", L"ERROR", MB_ICONERROR | MB_OK);
        PostQuitMessage(0);
        return;
    }

    HANDLE hRes = LoadResource(NULL, (HRSRC)hResInfo);
    if (hRes == NULL) {
        MessageBox(NULL, L"Failed to load click resource", L"ERROR", MB_ICONERROR | MB_OK);
        PostQuitMessage(0);
        return;
    }

    m_clickWave = (LPWSTR)LockResource(hRes);

    if (m_clickWave == NULL) {
        MessageBox(NULL, L"Failed to lock resource", L"ERROR", MB_ICONERROR | MB_OK);
        PostQuitMessage(0);
    }
}

void Clicker::InitMouseHook()
{
    m_hhook = SetWindowsHookEx(WH_MOUSE_LL, LowLevelMouseProc, NULL, 0);
    if (m_hhook == NULL) {
        MessageBox(NULL, L"Failed to install Mouse hook", L"ERROR", MB_ICONERROR | MB_OK);
        PostQuitMessage(0);
        return;
    }
}

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;
}