comdlg32: More cast-qual warnings fixes (1 of 2)

[Andrew Talbot]

Changelog:
    comdlg32: Cast-qual warnings fix.

diff -urN a/dlls/comdlg32/colordlg.c b/dlls/comdlg32/colordlg.c
--- a/dlls/comdlg32/colordlg.c	2006-09-07 13:13:47.000000000 +0100
+++ b/dlls/comdlg32/colordlg.c	2006-10-22 12:51:13.000000000 +0100
@@ -1328,7 +1328,9 @@
 BOOL WINAPI ChooseColorA( LPCHOOSECOLORA lpChCol )
 
 {
+  LPWSTR lpcc_template_name_tmp;
   BOOL ret;
+
   LPCHOOSECOLORW lpcc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CHOOSECOLORW));
   lpcc->lStructSize = sizeof(*lpcc);
   lpcc->hwndOwner = lpChCol->hwndOwner;
@@ -1341,8 +1343,9 @@
   if ((lpcc->Flags & CC_ENABLETEMPLATE) && (lpChCol->lpTemplateName)) {
       if (HIWORD(lpChCol->lpTemplateName)) {
 	  INT len = MultiByteToWideChar( CP_ACP, 0, lpChCol->lpTemplateName, -1, NULL, 0);
-	  lpcc->lpTemplateName = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
-	  MultiByteToWideChar( CP_ACP, 0, lpChCol->lpTemplateName, -1, (LPWSTR)lpcc->lpTemplateName, len );
+	  lpcc_template_name_tmp = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
+	  MultiByteToWideChar( CP_ACP, 0, lpChCol->lpTemplateName, -1, lpcc_template_name_tmp, len );
+	  lpcc->lpTemplateName = lpcc_template_name_tmp;
       } else {
 	  lpcc->lpTemplateName = (LPCWSTR)lpChCol->lpTemplateName;
       }
@@ -1352,7 +1355,7 @@
 
   if (ret)
       lpChCol->rgbResult = lpcc->rgbResult;
-  if (HIWORD(lpcc->lpTemplateName)) HeapFree(GetProcessHeap(), 0, (LPSTR)lpcc->lpTemplateName);
+  if (HIWORD(lpcc->lpTemplateName)) HeapFree(GetProcessHeap(), 0, lpcc_template_name_tmp);
   HeapFree(GetProcessHeap(), 0, lpcc);
   return ret;
 }