fixed keys behaviour in the multiline edit control (Bug 4381)

[Raimonds Praude]

Updated WM_GETDLGCODE message processing in EditWndProc_common function:
limited the cases when multiline Edit control overtakes the keystrokes with
DLGC_WANTMESSAGE/DLGC_WANTALLKEYS. These cases are:
1) if <Control> key is pressed (e.g. Control-TAB for inserting tab) or
2) if the style of Edit control is ES_WANTRETURN and <Enter> key is pressed.

Index: dlls/user/edit.c
===================================================================
RCS file: /home/wine/wine/dlls/user/edit.c,v
retrieving revision 1.46
diff -u -r1.46 edit.c
--- dlls/user/edit.c	3 Jan 2006 12:41:26 -0000	1.46
+++ dlls/user/edit.c	23 Jan 2006 08:29:58 -0000
@@ -786,8 +786,17 @@
  		
  		if (es->style & ES_MULTILINE)
  		{
-		   result |= DLGC_WANTALLKEYS;
-		   break;
+			if (lParam && ( ((LPMSG)lParam)->message == WM_KEYDOWN) )
+			{
+				if (GetKeyState(VK_CONTROL) >= 0)
+				{
+					int vk = (int)((LPMSG)lParam)->wParam;
+					if ( !((es->style & ES_WANTRETURN) && (vk == VK_RETURN)) )
+						break;			
+				}
+			}
+			result |= DLGC_WANTMESSAGE;
+		   	break;
  		}

  		if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))