 | Gtk2Hs | Contents | Index |
| Graphics.UI.Gtk.General.General |
|
TODO
- quitAddDestroy, quitAdd, quitRemove, inputAdd, inputRemove
| initGUI :: IO [String] |
| eventsPending :: IO Int |
| mainGUI :: IO () |
| mainLevel :: IO Int |
| mainQuit :: IO () |
| mainIteration :: IO Bool |
| mainIterationDo :: Bool -> IO Bool |
| grabAdd :: WidgetClass wd => wd -> IO () |
| grabGetCurrent :: IO (Maybe Widget) |
| grabRemove :: WidgetClass w => w -> IO () |
| priorityLow :: Int |
| priorityDefaultIdle :: Int |
| priorityHighIdle :: Int |
| priorityDefault :: Int |
| priorityHigh :: Int |
| timeoutAdd :: IO Bool -> Int -> IO HandlerId |
| timeoutAddFull :: IO Bool -> Int -> Int -> IO HandlerId |
| timeoutRemove :: HandlerId -> IO () |
| idleAdd :: IO Bool -> Int -> IO HandlerId |
| idleRemove :: HandlerId -> IO () |
| type HandlerId = CUInt |
Initialize the GUI binding.
- This function initialized the GUI toolkit and parses all Gtk specific arguments. The remaining arguments are returned. If the initialization of the toolkit fails for whatever reason, an exception is thrown.
- Throws: ErrorCall Cannot initialize GUI.
Inquire the main loop level.
- Callbacks that take more time to process can call loopIteration to keep the GUI responsive. Each time the main loop is restarted this way, the main loop counter is increased. This function returns this counter.
Process an event, block if necessary.
- Returns True if the loopQuit was called while processing the event.
Process a single event.
- Called with True, this function behaves as loopIteration in that it waits until an event is available for processing. The function will return immediately, if passed False.
- Returns True if the loopQuit was called while processing the event.
Sets a function to be called at regular intervals, with the default priority priorityDefault. The function is called repeatedly until it returns False, after which point the timeout function will not be called again. The first call to the function will be at the end of the first interval.
Note that timeout functions may be delayed, due to the processing of other event sources. Thus they should not be relied on for precise timing. After each call to the timeout function, the time of the next timeout is recalculated based on the current time and the given interval (it does not try to 'catch up' time lost in delays).
Sets a function to be called at regular intervals, with the given priority. The function is called repeatedly until it returns False, after which point the timeout function will not be called again. The first call to the function will be at the end of the first interval.
Note that timeout functions may be delayed, due to the processing of other event sources. Thus they should not be relied on for precise timing. After each call to the timeout function, the time of the next timeout is recalculated based on the current time and the given interval (it does not try to 'catch up' time lost in delays).
Add a callback that is called whenever the system is idle.
- A priority can be specified via an integer. This should usually be priorityDefaultIdle.
- If the function returns False it will be removed.