From ae2b6f681ac630fa1fb0314294495b71cb1ac231 Mon Sep 17 00:00:00 2001
From: Zufu Liu <unknown>
Date: Sat, 16 Nov 2019 08:05:28 +1100
Subject: Backport: Protect against use of null input context.

Backport of changeset 7764:322518a38ece.
---
 win32/ScintillaWin.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/win32/ScintillaWin.cxx b/win32/ScintillaWin.cxx
index ef2782fe7..d9b906c1f 100644
--- a/win32/ScintillaWin.cxx
+++ b/win32/ScintillaWin.cxx
@@ -1434,7 +1434,9 @@ sptr_t ScintillaWin::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam
 		case WM_LBUTTONDOWN: {
 			// For IME, set the composition string as the result string.
 			IMContext imc(MainHWND());
-			::ImmNotifyIME(imc.hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
+			if (imc.hIMC) {
+				::ImmNotifyIME(imc.hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
+			}
 			//
 			//Platform::DebugPrintf("Buttdown %d %x %x %x %x %x\n",iMessage, wParam, lParam,
 			//	KeyboardIsKeyDown(VK_SHIFT),
-- 
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