prevent crash related to unsupported context menu types

Modified: trunk/reactos/subsys/system/explorer/shell/pane.cpp

--- trunk/reactos/subsys/system/explorer/shell/pane.cpp	2005-02-06 10:38:51 UTC (rev 13433)
+++ trunk/reactos/subsys/system/explorer/shell/pane.cpp	2005-02-06 10:50:50 UTC (rev 13434)
@@ -491,9 +491,9 @@

 	 // output type/class name
 	if (visible_cols & COL_TYPE) {
 		if (calcWidthCol == -1)

-			_out_wrkr.output_text(dis, _positions, col, entry->_type_name? entry->_type_name: TEXT(""), 0);

+			_out_wrkr.output_text(dis, _positions, col, entry->_type_name&&entry->_type_name!=LPSTR_TEXTCALLBACK? entry->_type_name: TEXT(""), 0);

 		else if (calcWidthCol==col || calcWidthCol==COLUMNS)

-			calc_width(dis, col, entry->_type_name? entry->_type_name: TEXT(""));

+			calc_width(dis, col, entry->_type_name&&entry->_type_name!=LPSTR_TEXTCALLBACK? entry->_type_name: TEXT(""));

 	}
 	++col;
 
@@ -623,9 +623,9 @@

 	 // output content / symbolic link target / comment
 	if (visible_cols & COL_CONTENT) {
 		if (calcWidthCol == -1)

-			_out_wrkr.output_text(dis, _positions, col, entry->_content? entry->_content: TEXT(""), 0);

+			_out_wrkr.output_text(dis, _positions, col, entry->_content&&entry->_content!=LPSTR_TEXTCALLBACK? entry->_content: TEXT(""), 0);

 		else if (calcWidthCol==col || calcWidthCol==COLUMNS)

-			calc_width(dis, col, entry->_content? entry->_content: TEXT(""));

+			calc_width(dis, col, entry->_content&&entry->_content!=LPSTR_TEXTCALLBACK? entry->_content: TEXT(""));

 	}
 }