diff options
Diffstat (limited to 'base/base_drop_target.cc')
| -rw-r--r-- | base/base_drop_target.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/base/base_drop_target.cc b/base/base_drop_target.cc index 9809255..1dda396 100644 --- a/base/base_drop_target.cc +++ b/base/base_drop_target.cc @@ -11,6 +11,7 @@ /////////////////////////////////////////////////////////////////////////////// IDropTargetHelper* BaseDropTarget::cached_drop_target_helper_ = NULL; +int32 BaseDropTarget::drag_identity_ = 0; BaseDropTarget::BaseDropTarget(HWND hwnd) : hwnd_(hwnd), @@ -53,6 +54,11 @@ HRESULT BaseDropTarget::DragEnter(IDataObject* data_object, *effect = DROPEFFECT_NONE; return S_OK; } + + // Update the drag identity, skipping 0. + if (++drag_identity_ == 0) + ++drag_identity_; + current_data_object_ = data_object; POINT screen_pt = { cursor_position.x, cursor_position.y }; *effect = OnDragEnter(current_data_object_, key_state, screen_pt, *effect); |