comctl32: Constify some variables.

dlls/comctl32/comboex.c

@@ -758,7 +758,7 @@ static HIMAGELIST COMBOEX_SetImageList (COMBOEX_INFO *infoPtr, HIMAGELIST himl)
     return himlTemp;
 }
 
-static BOOL COMBOEX_SetItemW (const COMBOEX_INFO *infoPtr, COMBOBOXEXITEMW *cit)
+static BOOL COMBOEX_SetItemW (const COMBOEX_INFO *infoPtr, const COMBOBOXEXITEMW *cit)
 {
     INT_PTR index = cit->iItem;
     CBE_ITEMDATA *item;

dlls/comctl32/datetime.c

@@ -1368,7 +1368,7 @@ DATETIME_Destroy (DATETIME_INFO *infoPtr)
 
 
 static INT
-DATETIME_GetText (DATETIME_INFO *infoPtr, INT count, LPWSTR dst)
+DATETIME_GetText (const DATETIME_INFO *infoPtr, INT count, LPWSTR dst)
 {
     WCHAR buf[80];
     int i;

dlls/comctl32/header.c

@@ -1215,7 +1215,7 @@ HEADER_GetOrderArray(const HEADER_INFO *infoPtr, INT size, LPINT order)
 
 /* Returns index of first duplicate 'value' from [0,to) range,
    or -1 if there isn't any */
-static INT has_duplicate(INT *array, INT to, INT value)
+static INT has_duplicate(const INT *array, INT to, INT value)
 {
     INT i;
     for(i = 0; i < to; i++)
@@ -1224,7 +1224,7 @@ static INT has_duplicate(INT *array, INT to, INT value)
 }
 
 /* returns next available value from [0,max] not to duplicate in [0,to) */
-static INT get_nextvalue(INT *array, INT to, INT max)
+static INT get_nextvalue(const INT *array, INT to, INT max)
 {
     INT i;
     for(i = 0; i < max; i++)