imm: More correctly handle the presence of the default IME input window on IME open and close.

dlls/imm32/imm.c

@@ -192,17 +192,15 @@ static void ImmInternalSetOpenStatus(BOOL fOpen)
 {
     TRACE("Setting internal state to %s\n",(fOpen)?"OPEN":"CLOSED");
 
-   root_context->IMC.fOpen = fOpen;
-   root_context->bInternalState = fOpen;
-
-   if (fOpen == FALSE)
+    if (root_context->IMC.fOpen && fOpen == FALSE)
     {
         ShowWindow(hwndDefault,SW_HIDE);
         ImmDestroyIMCC(root_context->IMC.hCompStr);
         root_context->IMC.hCompStr = NULL;
     }
-    else
-        ShowWindow(hwndDefault, SW_SHOWNOACTIVATE);
+
+    root_context->IMC.fOpen = fOpen;
+    root_context->bInternalState = fOpen;
 
     ImmInternalSendIMENotify(IMN_SETOPENSTATUS, 0);
 }