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OnCloseHI picture event
Declaration
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ENTRY OnCloseHI (BOOL _bClose)
; script actions
END OnCloseHI |
Parameters
_bClose | Required input-output parameter of BOOL type. |
Description
The picture event is being generated by the HI when user attempts to close it. The picture event handler must set the parameter _bClose to a value and this is the reaction to user's action. Before terminating the picture event handler, if the parameter is set to:
- @TRUE - the HI will be closed
- @FALSE - the HI will not be closed
Example
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; evet handler: Attempt to close HI | ||||
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ENTRY ENTRY OnCloseHI (BOOL _bClose) | ||||
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_bClose := @FALSE ; refusing to close HI END OnCloseHI |
A picture a OnClose HI process with an OnCloseHI event handler defined like in this can not way cannot be closed.
Note
The OnCloseHI event
handler can be used e.g. for checking parameters defined by the user. If the handler doesn't change the value of the parameter _bClose, the picture will be closedshould be defined in only one of the currently opened pictures in HI. If more than one such event is defined, none of them will be executed, and HI will be closed in the standard manner—that is, as if no OnCloseHI event had been defined.
The presence of multiple pictures with a defined OnCloseHI event handler is indicated to the user via an error dialog.
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