feat: mdsn에 따라 nCode 값에 따른 처리 수행

lib.go

@@ -11,42 +11,44 @@ var otherPressedCount = 0
 var otherPressedMap = map[uint32]bool{}
 
 func keyboardHook(nCode int32, wParam uintptr, lParam unsafe.Pointer) uintptr {
- kb := (*winapi.KBDLLHOOKSTRUCT)(lParam)
+ if nCode == winapi.HC_ACTION {
+ kb := (*winapi.KBDLLHOOKSTRUCT)(lParam)
 
- if kb.VkCode == winapi.VK_LSHIFT {
- if wParam == winapi.WM_KEYDOWN {
- if otherPressedCount == 0 {
- lShiftAlone = true
- }
- } else if wParam == winapi.WM_KEYUP {
- if lShiftAlone {
- // NOTE: https://stackoverflow.com/questions/64280975/immgetcontext-returns-zero-always
- hwnd := winapi.ImmGetDefaultIMEWnd(winapi.GetForegroundWindow())
- tid := uint32(winapi.GetWindowThreadProcessId(hwnd, 0))
- lid := winapi.GetKeyboardLayout(tid)
+  if kb.VkCode == winapi.VK_LSHIFT {
+  if wParam == winapi.WM_KEYDOWN {
+  if otherPressedCount == 0 {
+  lShiftAlone = true
+  }
+  } else if wParam == winapi.WM_KEYUP {
+  if lShiftAlone {
+  // NOTE: https://stackoverflow.com/questions/64280975/immgetcontext-returns-zero-always
+  hwnd := winapi.ImmGetDefaultIMEWnd(winapi.GetForegroundWindow())
+  tid := uint32(winapi.GetWindowThreadProcessId(hwnd, 0))
+  lid := winapi.GetKeyboardLayout(tid)
 
- // NOTE: https://docs.microsoft.com/ko-kr/windows/win32/api/winuser/nf-winuser-getkeyboardlayout?redirectedfrom=MSDN#return-value
- // locale 식별자가 ko-KR일 경우에만 언어 변경 작업 진행
- if lid&0xFFFF == 0x0412 {
- // NOTE: COMPOSITIONFORM에 사용하는 CFS_EXCLUDE에 대한 참고 자료가 없으나 실제로 해보면 composition window가 나타나지 않음
- cf := winapi.COMPOSITIONFORM{Style: winapi.CFS_EXCLUDE}
- _ = winapi.SendMessage(hwnd, winapi.WM_IME_CONTROL, winapi.IMC_SETCOMPOSITIONWINDOW, uintptr(unsafe.Pointer(&cf)))
- mode := 1 ^ winapi.SendMessage(hwnd, winapi.WM_IME_CONTROL, winapi.IMC_GETCONVERSIONMODE, 0)
- _ = winapi.SendMessage(hwnd, winapi.WM_IME_CONTROL, winapi.IMC_SETCONVERSIONMODE, mode)
+ // NOTE: https://docs.microsoft.com/ko-kr/windows/win32/api/winuser/nf-winuser-getkeyboardlayout?redirectedfrom=MSDN#return-value
+ // locale 식별자가 ko-KR일 경우에만 언어 변경 작업 진행
+ if lid&0xFFFF == 0x0412 {
+ // NOTE: COMPOSITIONFORM에 사용하는 CFS_EXCLUDE에 대한 참고 자료가 없으나 실제로 해보면 composition window가 나타나지 않음
+ cf := winapi.COMPOSITIONFORM{Style: winapi.CFS_EXCLUDE}
+ _ = winapi.SendMessage(hwnd, winapi.WM_IME_CONTROL, winapi.IMC_SETCOMPOSITIONWINDOW, uintptr(unsafe.Pointer(&cf)))
+ mode := 1 ^ winapi.SendMessage(hwnd, winapi.WM_IME_CONTROL, winapi.IMC_GETCONVERSIONMODE, 0)
+ _ = winapi.SendMessage(hwnd, winapi.WM_IME_CONTROL, winapi.IMC_SETCONVERSIONMODE, mode)
+ }
  }
  }
- }
- } else {
- if wParam&0x1 == 0 { // NOTE: WM_*DOWN
- if !otherPressedMap[kb.VkCode] {
- lShiftAlone = false
- otherPressedCount += 1
- otherPressedMap[kb.VkCode] = true
- }
- } else { // NOTE: WM_*UP
- if otherPressedMap[kb.VkCode] {
- otherPressedCount -= 1
- otherPressedMap[kb.VkCode] = false
+ } else {
+  if wParam&0x1 == 0 { // NOTE: WM_*DOWN
+  if !otherPressedMap[kb.VkCode] {
+  lShiftAlone = false
+  otherPressedCount += 1
+  otherPressedMap[kb.VkCode] = true
+ }
+ } else { // NOTE: WM_*UP
+  if otherPressedMap[kb.VkCode] {
+  otherPressedCount -= 1
+  otherPressedMap[kb.VkCode] = false
+ }
  }
  }
  }

winapi/const.go

@@ -56,4 +56,5 @@ const (
  IMC_GETCONVERSIONMODE = 1
  IMC_SETCONVERSIONMODE = 2
  CFS_EXCLUDE = 0x80
+ HC_ACTION = 0
 )