Syntax
bool AM_SetIdleCallback(
MENU_HANDLE menu,
bool( *IdleCallback)(MENU_HANDLE menu, void *param),
void *param
);
Parameters
- menu
- [in] Menu handle
- IdleCallback
-
[in] A pointer to the callback function.
- param
-
[in] A pointer to a parameter to pass as an argument to the callback function.
Return value
Returns true if the function succeeds, false otherwise.
Remarks
If you register a callback function with this function, the callback function will be called repeatedly while the AM_ExecMenu function is idle and waiting for input.To unregister the callback function, call AM_RemoveIdleCallback function.
The specifications of the callback function are as follows.
Syntax
bool MyCallbackFunction(
MENU_HANDLE menu,
void *param
);
Parameters
- menu
- [in] Menu handle specified by menu parameter of the AM_SetIdleCallback function.
- param
- [in] Pointer specified by param parameter of the AM_SetIdleCallback function.
Return value
Returns true if you want to continue waiting for input.
Returns false to stop waiting for input. In this case, the AM_ExecMenu will stop waiting and return the AMENU_CALLBACK_BREAK event.
Returns false to stop waiting for input. In this case, the AM_ExecMenu will stop waiting and return the AMENU_CALLBACK_BREAK event.
Requirements
Header file:
lib.hLibrary file:
AdvancedMenu.h
libAdvancedMenu.a
libSTARTUPOPH5000.a
Last updated: 2020/10/09