At the heart of interacting with and/or controlling Showcase from a custom add-in is the Showcase Message Passing Architecture.
Messages allow your add-in to change to the state of the running Showcase application, and to receive feedback from Showcase.
The sample add-ins presented here illustrate how to work with the Showcase Message Passing Architecture.
Workflow, Samples and Tools
| Workflow |
Related samples and tools |
Details |
| Displaying Messages |
Python: Messages:
- SOME_CUSTOM_THING
- SOME_ENVIRONMENT_THING
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Writes all Messages to the Showcase Console window. For example, when an end-user triggers a menu item, the corresponding MENU_INVOKE_ITEM Message is echoed.
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| Understanding Message formats |
Python: Messages:
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Adds items to the Help menu that show the Message formats for invoking built-in menu functionality. Also adds a new menu called Local Menu to the main menu bar.
|
| Determining Response Messages |
Python: Messages:
- Action Messages
- Response Messages
|
Adds a button to the Help menu that lists all the Action Messages and their corresponding Response Messages. |
| Sending messages from remote UI (html) |
Python: Messages:
- ALTERNATIVE_*
- BEHAVIOR_*
- ENVIRONMENT_*
- SHOT_*
- SLIDE_*
- Etc.
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Illustrates how to send MESSAGES to Showcase by "label" rather than "message ID". This is useful for invoking menu functionality
from a remote UI using html.
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| Registering a custom message |
Python: Messages:
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Sets viewport background color by registering a custom message with the Message system. Also sets its size. Note that this sample does not make use of SET_DISPLAY_BACKGROUND_COLOR. It registers a custom message instead.
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