mirror of
https://github.com/jart/cosmopolitan.git
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80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/dce.h"
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#include "libc/nexgen32e/nt2sysv.h"
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#include "libc/nt/dll.h"
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#include "libc/nt/enum/cw.h"
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#include "libc/nt/enum/mb.h"
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#include "libc/nt/enum/sw.h"
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#include "libc/nt/enum/wm.h"
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#include "libc/nt/enum/ws.h"
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#include "libc/nt/events.h"
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#include "libc/nt/messagebox.h"
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#include "libc/nt/struct/msg.h"
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#include "libc/nt/struct/wndclass.h"
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#include "libc/nt/windows.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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/**
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* @fileoverview GUI Example
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*
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* Cosmopolitan has had a razor sharp focus on making sockets and stdio
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* work well across platforms. When you call a function like read(), it
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* will just work on platforms like Windows too. In order to do that we
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* need to support the WIN32 API, which you can use, but please note it
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* isn't polyfilled on other platforms in the same way as POSIX APIs.
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*/
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static const char16_t kClassName[] = u"cosmopolitan";
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static int64_t WindowProc(int64_t hwnd, uint32_t uMsg, uint64_t wParam,
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int64_t lParam) {
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switch (uMsg) {
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case kNtWmDestroy:
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PostQuitMessage(0);
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return 0;
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default:
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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}
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static void Gui(void) {
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int64_t h;
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struct NtMsg msg;
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struct NtWndClass wc;
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memset(&wc, 0, sizeof(wc));
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wc.lpfnWndProc = NT2SYSV(WindowProc);
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wc.hInstance = GetModuleHandle(NULL);
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wc.lpszClassName = kClassName;
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RegisterClass(&wc);
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h = CreateWindowEx(0, kClassName, u"Hello Cosmopolitan",
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kNtWsOverlappedwindow, kNtCwUsedefault, kNtCwUsedefault,
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kNtCwUsedefault, kNtCwUsedefault, 0, 0, wc.hInstance, 0);
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ShowWindow(h, kNtSwNormal);
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/*
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* NOTE: Cosmopolitan linker script is hard-coded to change the
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* subsystem from CUI to GUI when GetMessage() is linked.
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*/
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while (GetMessage(&msg, 0, 0, 0)) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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int main(int argc, char *argv[]) {
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if (!IsWindows()) {
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fputs("Sorry! This GUI demo only runs on Windows\n", stderr);
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fputs("https://github.com/jart/cosmopolitan/issues/57\n", stderr);
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return 1;
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}
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Gui();
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}
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