comctl32: Constify some variables

[Andrew Talbot]

Changelog:
    comctl32: Constify some variables.

diff -urN a/dlls/comctl32/ipaddress.c b/dlls/comctl32/ipaddress.c
--- a/dlls/comctl32/ipaddress.c	2007-01-18 18:11:13.000000000 +0000
+++ b/dlls/comctl32/ipaddress.c	2007-03-27 20:43:20.000000000 +0100
@@ -77,7 +77,7 @@
 static LRESULT CALLBACK
 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
 
-static LRESULT IPADDRESS_Notify (IPADDRESS_INFO *infoPtr, UINT command)
+static LRESULT IPADDRESS_Notify (const IPADDRESS_INFO *infoPtr, UINT command)
 {
     HWND hwnd = infoPtr->Self;
 
@@ -87,7 +87,7 @@
              MAKEWPARAM (GetWindowLongPtrW (hwnd, GWLP_ID), command), (LPARAM)hwnd);
 }
 
-static INT IPADDRESS_IPNotify (IPADDRESS_INFO *infoPtr, INT field, INT value)
+static INT IPADDRESS_IPNotify (const IPADDRESS_INFO *infoPtr, INT field, INT value)
 {
     NMIPADDRESS nmip;
 
@@ -109,7 +109,7 @@
 }
 
 
-static int IPADDRESS_GetPartIndex(IPADDRESS_INFO *infoPtr, HWND hwnd)
+static int IPADDRESS_GetPartIndex(const IPADDRESS_INFO *infoPtr, HWND hwnd)
 {
     int i;
 
@@ -123,7 +123,7 @@
 }
 
 
-static LRESULT IPADDRESS_Draw (IPADDRESS_INFO *infoPtr, HDC hdc)
+static LRESULT IPADDRESS_Draw (const IPADDRESS_INFO *infoPtr, HDC hdc)
 {
     static const WCHAR dotW[] = { '.', 0 };
     RECT rect, rcPart;
@@ -165,7 +165,7 @@
 }
 
 
-static LRESULT IPADDRESS_Create (HWND hwnd, LPCREATESTRUCTA lpCreate)
+static LRESULT IPADDRESS_Create (HWND hwnd, const CREATESTRUCTA *lpCreate)
 {
     static const WCHAR EDIT[] = { 'E', 'd', 'i', 't', 0 };
     IPADDRESS_INFO *infoPtr;
@@ -246,7 +246,7 @@
 }
 
 
-static LRESULT IPADDRESS_Paint (IPADDRESS_INFO *infoPtr, HDC hdc)
+static LRESULT IPADDRESS_Paint (const IPADDRESS_INFO *infoPtr, HDC hdc)
 {
     PAINTSTRUCT ps;
 
@@ -261,7 +261,7 @@
 }
 
 
-static BOOL IPADDRESS_IsBlank (IPADDRESS_INFO *infoPtr)
+static BOOL IPADDRESS_IsBlank (const IPADDRESS_INFO *infoPtr)
 {
     int i;
 
@@ -274,7 +274,7 @@
 }
 
 
-static int IPADDRESS_GetAddress (IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
+static int IPADDRESS_GetAddress (const IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
 {
     WCHAR field[5];
     int i, invalid = 0;
@@ -308,7 +308,7 @@
 }
 
 
-static void IPADDRESS_ClearAddress (IPADDRESS_INFO *infoPtr)
+static void IPADDRESS_ClearAddress (const IPADDRESS_INFO *infoPtr)
 {
     WCHAR nil[1] = { 0 };
     int i;
@@ -320,7 +320,7 @@
 }
 
 
-static LRESULT IPADDRESS_SetAddress (IPADDRESS_INFO *infoPtr, DWORD ip_address)
+static LRESULT IPADDRESS_SetAddress (const IPADDRESS_INFO *infoPtr, DWORD ip_address)
 {
     WCHAR buf[20];
     static const WCHAR fmt[] = { '%', 'd', 0 };
@@ -329,7 +329,7 @@
     TRACE("\n");
 
     for (i = 3; i >= 0; i--) {
-	IPPART_INFO* part = &infoPtr->Part[i];
+	const IPPART_INFO* part = &infoPtr->Part[i];
         int value = ip_address & 0xff;
 	if ( (value >= part->LowerLimit) && (value <= part->UpperLimit) ) {
 	    wsprintfW (buf, fmt, value);
@@ -343,7 +343,7 @@
 }
 
 
-static void IPADDRESS_SetFocusToField (IPADDRESS_INFO *infoPtr, INT index)
+static void IPADDRESS_SetFocusToField (const IPADDRESS_INFO *infoPtr, INT index)
 {
     TRACE("(index=%d)\n", index);
 
@@ -353,9 +353,9 @@
 }
 
 
-static BOOL IPADDRESS_ConstrainField (IPADDRESS_INFO *infoPtr, int currentfield)
+static BOOL IPADDRESS_ConstrainField (const IPADDRESS_INFO *infoPtr, int currentfield)
 {
-    IPPART_INFO *part = &infoPtr->Part[currentfield];
+    const IPPART_INFO *part = &infoPtr->Part[currentfield];
     WCHAR field[10];
     static const WCHAR fmt[] = { '%', 'd', 0 };
     int curValue, newValue;
@@ -383,7 +383,7 @@
 }
 
 
-static BOOL IPADDRESS_GotoNextField (IPADDRESS_INFO *infoPtr, int cur, int sel)
+static BOOL IPADDRESS_GotoNextField (const IPADDRESS_INFO *infoPtr, int cur, int sel)
 {
     TRACE("\n");
 
@@ -391,7 +391,7 @@
 	IPADDRESS_ConstrainField(infoPtr, cur);
 
 	if(cur < 3) {
-	    IPPART_INFO *next = &infoPtr->Part[cur + 1];
+	    const IPPART_INFO *next = &infoPtr->Part[cur + 1];
 	    int start = 0, end = 0;
             SetFocus (next->EditHwnd);
 	    if (sel != POS_DEFAULT) {