Messages Table of Contents | Messages Index

# File Panel Messages

The file panel produces three messages: `B_REFS_RECEIVED`, `B_SAVE_REQUESTED`, and `B_CANCEL`. The first of these was discussed under "Application Messages" above. It's produced when the user picks files to open from the panel. The other two messages are described below.

### B_SAVE_REQUESTED

The file panel produces this message when the user asks the application to save a document. It has two data fields:

Field | Type code | Description
"directory" | `B_REF_TYPE` | An `entry_ref` referring to the directory where the document should be saved.
"name" | `B_STRING_TYPE` | The file name under which the document should be saved.

### B_CANCEL

A cancel notification is sent whenever a file panel is hidden. This includes the Cancel button being clicked, the panel being closed, and the panel being hidden after an open or a save.

Field | Type code | Description
"old_what" | `B_INT32_TYPE` | The "previous" `what` value. This is only useful (and dependable) if you supplied the BFilePanel with your own BMessage: The `what` from your message is moved to the "old_what" field. If you didn't supply a BMessage, you should ignore this field (it could contain garbage).
"source" | `B_POINTER_TYPE` | A pointer to the BFilePanel object.

See the BFilePanel class in The Storage Kit chapter for more information.

Messages Table of Contents | Messages Index

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