84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
#include <iostream>
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#include <windows.h>
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#include <cmath>
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// Определение размеров окна
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const int WIDTH = 800;
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const int HEIGHT = 600;
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// Определение параметров синусоид
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const double PI = 3.14159265358979323846;
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const double X_SCALE = 0.01;
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const double Y_SCALE = 100.0; // Машт по Y
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// Основная функция для рисования синусоид
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void DrawSineWaves(HDC hdc) {
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int centerY = HEIGHT / 2;
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// Рисование синусоид
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for (double x = 0; x < WIDTH; x += 0.5) {
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double xVal = x * X_SCALE;
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int ySmall2 = static_cast<int>(0.3 * std::sin(7 * xVal) * Y_SCALE);
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SetPixel(hdc, static_cast<int>(x), centerY - ySmall2, RGB(255, 204, 0));
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}
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}
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// Оконная процедура
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LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
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switch (uMsg) {
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case WM_PAINT: {
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PAINTSTRUCT ps;
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HDC hdc = BeginPaint(hwnd, &ps);
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DrawSineWaves(hdc);
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EndPaint(hwnd, &ps);
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}
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return 0;
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case WM_DESTROY:
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PostQuitMessage(0);
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return 0;
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}
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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// Основная функция WinAPI
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int WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ PWSTR pCmdLine, _In_ int nCmdShow) {
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const wchar_t CLASS_NAME[] = L"SineWaveWindowClass";
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WNDCLASS wc = {};
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wc.lpfnWndProc = WindowProc;
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wc.hInstance = hInstance;
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wc.lpszClassName = CLASS_NAME;
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wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
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RegisterClass(&wc);
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HWND hwnd = CreateWindowEx(
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0,
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CLASS_NAME,
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L"Sine Waves Graph",
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WS_OVERLAPPEDWINDOW,
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CW_USEDEFAULT, CW_USEDEFAULT, WIDTH, HEIGHT,
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nullptr,
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nullptr,
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hInstance,
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nullptr
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);
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if (hwnd == nullptr) {
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return 0;
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}
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ShowWindow(hwnd, nCmdShow);
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MSG msg;
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while (GetMessage(&msg, nullptr, 0, 0)) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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return 0;
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} |