First Windows Program May 2026

int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpCmdLine, int nShow) { WNDCLASS wc = {0}; wc.lpfnWndProc = WndProc; wc.hInstance = hInst; wc.lpszClassName = L"FirstWin"; RegisterClass(&wc);

HWND hwnd = CreateWindowW(L"FirstWin", L"My First Window", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 400, 300, NULL, NULL, hInst, NULL); ShowWindow(hwnd, nShow); first windows program

#include <windows.h> LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { if (msg == WM_DESTROY) { PostQuitMessage(0); return 0; } return DefWindowProc(hwnd, msg, wParam, lParam); } int WINAPI WinMain(HINSTANCE hInst