first commit

.gitignore

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+/zenhan
+*.zip

build.sh

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+#!/bin/bash
+mkdir -p zenhan/bin64
+mkdir -p zenhan/bin32
+
+out=zenhan/bin64/zenhan.exe
+x86_64-w64-mingw32-g++-win32 -std=c++11 -mwindows main.cc -o $out -limm32
+x86_64-w64-mingw32-strip $out
+
+out=zenhan/bin32/zenhan.exe
+i686-w64-mingw32-g++-win32 -std=c++11 -mwindows -static-libgcc main.cc -o $out -limm32
+i686-w64-mingw32-strip $out
+
+zip -r9 zenhan.zip zenhan/

main.cc

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+#include <cstdio>
+#include <cstdlib>
+#include <windows.h>
+
+int
+main(int argc, char** argv)
+{
+  constexpr LPARAM IMC_GETOPENSTATUS = 5;
+  constexpr LPARAM IMC_SETOPENSTATUS = 6;
+
+  auto hwnd = GetForegroundWindow();
+  if (!hwnd)
+    return 0;
+
+  auto ime = ImmGetDefaultIMEWnd(hwnd);
+  if (!ime)
+    return 0;
+
+  LPARAM stat;
+  if (argc < 2) {
+    stat = SendMessage(ime, WM_IME_CONTROL, IMC_GETOPENSTATUS, 0);
+  } else {
+    stat = std::atoi(argv[1]);
+    SendMessage(ime, WM_IME_CONTROL, IMC_SETOPENSTATUS, stat);
+  }
+  std::printf("%d\n", stat);
+  return 0;
+}