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| 56 | >Chapter 3. Linux Trace Toolkit Viewer Graphical Module Tutorial</TD |
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| 77 | >3.3. The dynamic part of a module : the viewer</A |
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| 80 | > The dynamic part starts with the constructor of the viewer. It is called by the |
| 81 | main window when the corresponding button or menu item is selected. See |
| 82 | h_guicontrolflow() from control flow viewer eventhooks.c for an example. It does |
| 83 | basic connexion to the tab's events available : time window change notification, |
| 84 | current time notification, redraw notification, continue notification. All these |
| 85 | function should be implemented in your viewer if you want the data you shown to |
| 86 | be synchronised with the main window and the other viewers. It also calls the |
| 87 | background computation, which will be discussed in the next section. |
| 88 | </P |
| 89 | ><P |
| 90 | > This is also at this point that the viewer does create it's own memory footprint |
| 91 | : its inner structure. This structure will have to be passed as hook_data to |
| 92 | each function registered by the viewer : this is what makes the functions |
| 93 | "belong" to this instance of the viewer. |
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