time-devourer/test_window.cpp at master · sdttttt/time-devourer · GitHub

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#include "digital_font.h"
#include "date.h"
#include "resource.h"
#include "common.h"

// 设置窗口类
constexpr auto TEST_CLASS_NAME = L"TestWindowClass";

// 标题栏名
constexpr auto TEST_WINDOW_TITLE = L"TEST";

// 窗口尺寸
constexpr auto TEST_WINDOW_WIDTH = 500;
constexpr auto TEST_WINDOW_HEIGHT = 500;

static LRESULT CALLBACK testWndProc(
    _In_ HWND hWnd,
    _In_ UINT message,
    _In_ WPARAM wParam,
    _In_ LPARAM lParam
) {
    PAINTSTRUCT ps;

    switch (message) {
        case WM_PAINT: {
            HDC hdc = BeginPaint(hWnd, &ps);
            const auto time = Date::CurrTimeWStr();
            DigitalFont::DrawClock(hdc, time);

            EndPaint(hWnd, &ps);
            break;
        }

        case WM_TIMER: {
        }

        case WM_CLOSE: {
            DestroyWindow(hWnd);
            break;
        }

        case WM_DESTROY: {
            break;
        }

        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
    }

    return 0;
}


static void registerTestClass(_In_ HINSTANCE hInstance) {
    WNDCLASSEX setting_wcex;

    setting_wcex.cbSize = sizeof(WNDCLASSEX);
    setting_wcex.style = CS_HREDRAW | CS_VREDRAW;
    setting_wcex.lpfnWndProc = testWndProc;
    setting_wcex.cbClsExtra = 0;
    setting_wcex.cbWndExtra = 0;
    setting_wcex.hInstance = hInstance;
    setting_wcex.hIcon = LoadIcon(setting_wcex.hInstance, MAKEINTRESOURCE(IDI_ICON));
    setting_wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
    setting_wcex.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
    setting_wcex.lpszMenuName = NULL;
    setting_wcex.lpszClassName = TEST_CLASS_NAME;
    setting_wcex.hIconSm = LoadIcon(setting_wcex.hInstance, MAKEINTRESOURCE(IDI_ICON));


    RegisterClassEx(&setting_wcex);
    Debug::TryLastErrorMessageBox();
}

/// <summary>
/// 创建设置窗口类并显示窗口。
/// </summary>
/// <param name="hInstance">应用程序实例的句柄。</param>
/// <param name="nCmdShow">窗口显示方式的标志。</param>
/// <returns>如果成功则返回 0，失败则返回 1。</returns>
int CreateTestClassAndWindow(_In_ HINSTANCE hInstance, _In_ int nCmdShow) {
    WNDCLASSEX setting_wcex = {sizeof(WNDCLASSEX)};
    if (FALSE == GetClassInfoEx(hInstance, TEST_CLASS_NAME, &setting_wcex)) {
        registerTestClass(hInstance);
    }

    HWND setting_hwnd = CreateWindowEx(
        0,
        TEST_CLASS_NAME,
        TEST_WINDOW_TITLE,
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT,
        TEST_WINDOW_WIDTH, TEST_WINDOW_HEIGHT,
        NULL,
        NULL,
        hInstance,
        NULL
    );
    Debug::TryLastErrorMessageBox();

    ShowWindow(setting_hwnd, nCmdShow);
    UpdateWindow(setting_hwnd);

    return 0;
}