Message_PlugIn_Busy (changes)
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WindowManager
» Messages
» Message Codes
» Message_PlugIn_Busy
Message_PlugIn_Busy
(Code &4D550)
| Message Block | ||
|---|---|---|
| +20 | Flags | |
| +24 | PlugIn instance handle |
|
| +28 | Browser instance handle (copied from Message_PlugIn_Open) | |
| +32 | State | |
Flags
| Value | Meaning |
|---|---|
| 0 | Set; PlugIn is busy |
| Clear; PlugIn is not busy | |
| 1 | Set; state at R1+32 has some meaning |
| Clear; ignore word at R1+32 | |
| 2 – 31 | Reserved (must be zero) |
State
| Value | Meaning |
|---|---|
| 0 | Stop |
| 1 | Play |
| 2 | Pause |
| 3 | Fast Forward |
| 4 | Rewind |
| 5 |
Use
This message is used for requesting that the parent display some indication of business (e.g. spinning logo, etc.).
Notes
If the plugin has set the busy bit in its Message_PlugIn_Opening message then it should send this message with bit 0 clear when it has finished its loading.
This is also used to notify the parent of any state change by the plugin in case it needs to update any user interface.
See also
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