LRESULT CALLBACK IME_getMessageHook(int code, WPARAM wParam, LPARAM lParam) {
MSG* pmsg=(MSG*)lParam;
if(pmsg->message==wm_candidateChange) {
handleCandidates(pmsg->hwnd);
} else {
handleCandidatesClosed(pmsg->hwnd);
}
handleIMEWindowMessage(pmsg->hwnd,pmsg->message,pmsg->wParam,pmsg->lParam);
return 0;
}
static LRESULT handleIMEWindowMessage(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
switch (message) {
case WM_IME_NOTIFY:
if(!hasValidIMEContext(hwnd)) return 0;
switch (wParam) {
case IMN_SETOPENSTATUS:
handleOpenStatus(hwnd);
break;
case IMN_OPENCANDIDATE:
case IMN_CHANGECANDIDATE:
PostMessage(hwnd,wm_candidateChange,0,0);
break;
case IMN_CLOSECANDIDATE:
nvdaControllerInternal_inputCandidateListUpdate(L"",-1,L"");
break;
case IMN_SETCONVERSIONMODE:
PostMessage(hwnd,wm_handleIMEConversionModeUpdate,0,0);
break;
case IMN_PRIVATE:
// Needed in XP to support EasyDots IME
if (!isUIElementMgrSafe || !isTSFThread(true))
handleReadingStringUpdate(hwnd);
break;
}
break;
case WM_IME_COMPOSITION:
if(!hasValidIMEContext(hwnd)) return 0;
curIMEWindow=hwnd;
if(!isTSFThread(true)) {\
if(lParam&GCS_COMPSTR||lParam&GCS_CURSORPOS) {
handleComposition(hwnd, wParam, lParam);
}
}
break;
case WM_IME_ENDCOMPOSITION:
if(!hasValidIMEContext(hwnd)) return 0;
if(curIMEWindow==hwnd) {
if(handleEndComposition(hwnd, wParam, lParam)) {
//Disable further typed character notifications produced by TSF
typedCharacter_window=NULL;
}
curIMEWindow=NULL;
}
break;
case WM_ACTIVATE:
case WM_SETFOCUS:
if(!hasValidIMEContext(hwnd)) return 0;
handleIMEConversionModeUpdate(hwnd,false);
if(!isTSFThread(true)) {
if (hwnd != GetFocus()) break;
handleComposition(hwnd, wParam, lParam);
handleCandidates(hwnd);
}
break;
default:
break;
}
return 0;
}
