diff --git a/WINGs/ChangeLog b/WINGs/ChangeLog
index 629731e3..1760192a 100644
--- a/WINGs/ChangeLog
+++ b/WINGs/ChangeLog
@@ -1,3 +1,11 @@
+changes since wmaker 0.62.0:
+............................
+- added WM{S,G}etDataFormat()
+- added drag and drop
+- changed selection code
+- added clientdata to WMFindInBag
+
+
 changes since wmaker 0.61.1:
 ............................
 
diff --git a/WINGs/WUtil.h b/WINGs/WUtil.h
index e841bae2..9a9dbd0a 100644
--- a/WINGs/WUtil.h
+++ b/WINGs/WUtil.h
@@ -163,7 +163,7 @@ typedef struct W_BagFunctions {
     void (*emptyBag)(WMBag *bag);
     void (*freeBag)(WMBag *bag);
     void (*mapBag)(WMBag *bag, void (*function)(void*, void*), void *data);
-    int (*findInBag)(WMBag *bag, int (*match)(void*));
+    int (*findInBag)(WMBag *bag, int (*match)(void*, void*), void *cdata);
     void *(*first)(WMBag *bag, WMBagIterator *ptr);
     void *(*last)(WMBag *bag, WMBagIterator *ptr);
     void *(*next)(WMBag *bag, WMBagIterator *ptr);
@@ -398,7 +398,7 @@ WMBag *WMCreateTreeBagWithDestructor(void (*destructor)(void*));
     
 #define WMCountInBag(bag, item) bag->func.countInBag(bag, item)
 
-#define WMFindInBag(bag, match) bag->func.findInBag(bag, match)
+#define WMFindInBag(bag, match, cdata) bag->func.findInBag(bag, match, cdata)
     
 #define WMBagFirst(bag, ptr) bag->func.first(bag, ptr)
 
@@ -486,6 +486,10 @@ void WMResetDataBytesInRange(WMData *aData, WMRange aRange);
 
 void WMSetData(WMData *aData, WMData *anotherData);
 
+    
+void WMSetDataFormat(WMData *aData, unsigned format);
+    
+unsigned WMGetDataFormat(WMData *aData);
 /* Storing data */
 
 
diff --git a/WINGs/bagtree.c b/WINGs/bagtree.c
index bbce0301..ebbbef53 100644
--- a/WINGs/bagtree.c
+++ b/WINGs/bagtree.c
@@ -44,7 +44,7 @@ static int sortBag(WMBag *bag, int (*comparer)(const void*, const void*));
 static void emptyBag(WMBag *bag);
 static void freeBag(WMBag *bag);
 static void mapBag(WMBag *bag, void (*function)(void*, void*), void *data);
-static int findInBag(WMBag *bag, int (*match)(void*));;
+static int findInBag(WMBag *bag, int (*match)(void*,void*), void *data);
 static void *first(WMBag *bag, WMBagIterator *ptr);
 static void *last(WMBag *bag, WMBagIterator *ptr);
 static void *next(WMBag *bag, WMBagIterator *ptr);
@@ -785,28 +785,29 @@ static void mapBag(WMBag *self, void (*function)(void*, void*), void *data)
 
 
 
-static int findInTree(W_TreeBag *tree, W_Node *node, int (*function)(void*))
+static int findInTree(W_TreeBag *tree, W_Node *node, 
+		      int (*function)(void*,void*), void *cdata)
 {
     int index;
     
     if (node == tree->nil)
 	return WBNotFound;
     
-    index = findInTree(tree, node->left, function);
+    index = findInTree(tree, node->left, function, cdata);
     if (index != WBNotFound)
 	return index;
 
-    if ((*function)(node->data)) {
+    if ((*function)(node->data, cdata)) {
 	return node->index;
     }
 
-    return findInTree(tree, node->right, function);
+    return findInTree(tree, node->right, function, cdata);
 }
 
 
-static int findInBag(WMBag *self, int (*match)(void*))
+static int findInBag(WMBag *self, int (*match)(void*,void*), void *cdata)
 {
-    return findInTree(SELF, SELF->root, match);
+    return findInTree(SELF, SELF->root, match, cdata);
 }