B_META_MIME_CHANGED
B_META_MIME_CHANGED message is sent to applications that request notifications of changes to the system-wide MIME database. To register for notifications by calling the new static BMimeType::StartWatching() function.
| Field | Type | Meaning |
|---|---|---|
| "be:type" | B_STRING_TYPE | The MIME type that changed. |
| "be:which" | B_INT32_TYPE | The type of change (new icon, new preferred app, whole new type, etc.). |
| "be:extra_type" | B_STRING_TYPE | This and the next field report changes to the icons of a supported type. This field is the supported type itself... |
| "be:large_icon" | B_BOOL_TYPE | ...and this is true if the large icon changed, and false if the little icon changed. |
B_MODIFIERS_CHANGED
The new B_MODIFIERS_CHANGED message is sent to the focus view when the modifier keys change. It's also sent to any other view that's spying on keyboard events as explained in SetMouseEventMask() function.
| Field | Type | Meaning |
|---|---|---|
| "when" | B_INT64_TYPE | Time of the event in microseconds since 1/1/70. |
| "modifiers" | B_INT32_TYPE | Vector of current modifier keys |
| "be:old_modifiers" | B_INT32_TYPE | Vector of old modifier keys |
B_MOUSE_MOVED
The B_MOUSE_MOVED message has a new "view_where"
B_OPEN_IN_WORKSPACE
The new B_OPEN_IN_WORKSPACE message isn't really a system message -- at least not the type that's generated and sent by the system. Rather, you create the message yourself, set its "be:workspace" field, and pass it to BRoster::Launch() in order to launch an app in a particular workspace.
| Field | Type | Meaning |
|---|---|---|
| "be:workspace" | B_INT32_TYPE | The index (0-based) of the desired workspace. |
B_SOME_APP_LAUNCHED, B_SOME_APP_ACTIVATED, B_SOME_APP_QUIT
These messages are sent by the Roster when an app (any app) is launched, activated, or quits. You register for these notifications through BRoster::StartWatching().
| Field | Type | Meaning |
|---|---|---|
| "be:mime_sig" | B_STRING_TYPE | The application signature. |
| "be:team" | B_INT32_TYPE | The app's team id. |
| "be:thread" | B_INT32_TYPE | The id of the app's main thread. |
| "be:flags" | B_INT32_TYPE | The app's app flags. |
| "be:ref" | B_REF_TYPE | The entry_ref of the app's executable file. |
B_TRANSLATION_MENU
The B_TRANSLATION_MENU message is sent when the user selects a menu item that was added through the BTranslationUtils::AddTranslationItems() functions.
| Field | Type | Meaning |
|---|---|---|
| "be:translator" | B_INT32_TYPE | The translator's id. |
| "be:type" | B_INT32_TYPE | The four-byte value that identifies the format. |