#include <windows.h> #include <math.h> #define WIDTH 420 #define HEIGHT 720 const char* planets[7] = { "SUN", "MOON", "MARS", "MERCURY", "JUPITER", "VENUS", "SATURN" }; const char* elements[7] = { "Gold", "Water", "Iron", "Wind", "Oak", "Copper", "Stone" }; const char* dayNames[7] = { "SUNDAY","MONDAY","TUESDAY","WEDNESDAY", "THURSDAY","FRIDAY","SATURDAY" }; LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_KEYDOWN: case WM_LBUTTONDOWN: PostQuitMessage(0); return 0; case WM_PAINT: { // [signal lost] double a = 2.0; double b = 0.15; for (double theta = 0; theta < 6 * 3.14159; theta += 0.05) { double r = a * exp(b * theta); } // [...] } }