Implemented StrCmpNIA like the other StrCmpXX functions.

dlls/comctl32/comctl32.spec

@@ -140,7 +140,7 @@ init	COMCTL32_LibMain
 350 stdcall StrChrA(str str) COMCTL32_StrChrA
 351 stdcall StrRChrA(str str long) COMCTL32_StrRChrA
 352 stdcall StrCmpNA(str str long) COMCTL32_StrCmpNA
-353 stub StrCmpNIA
+353 stdcall StrCmpNIA(str str long) COMCTL32_StrCmpNIA
 354 stdcall StrStrA(str str) COMCTL32_StrStrA
 355 stdcall StrStrIA(str str) COMCTL32_StrStrIA
 356 stdcall StrCSpnA(str str) COMCTL32_StrCSpnA

dlls/comctl32/comctl32undoc.c

@@ -1997,6 +1997,14 @@ INT WINAPI COMCTL32_StrCmpNA( LPCSTR lpStr1, LPCSTR lpStr2, int nChar) {
 }
 
 /**************************************************************************
+ * StrCmpNA [COMCTL32.352]
+ *
+ */
+INT WINAPI COMCTL32_StrCmpNIA( LPCSTR lpStr1, LPCSTR lpStr2, int nChar) {
+  return strncasecmp(lpStr1, lpStr2, nChar);
+}
+
+/**************************************************************************
  * StrCmpNW [COMCTL32.360]
  *
  */