When an accelerator key is used, there is no visual feedback other than focus to indicate that the control initiated the Click event. For example, if the accelerator key applies to a CommandButton , the user will not see the button pressed in the interface. The button receives the focus, however, when the user presses the accelerator key. Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.
Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. But im guessing each switch feels different. Joined Aug 23, Messages Reaction score 0. Attatched to the button is a canister of halucinagenic drug. Everytime you press the accelerator your foot inadvertantly touches the button and this releases the drug into the cockpit.
The drug is halotrophigen, a substance know to make the subject think that they are moving more quickly than they are. Apparently the press cars were fitted with two canisters.
PMSL I see you've taken your pills now then. You had me worried there for a while. Nik said:. Does this have anything to do with the operation of the shift light too?? Im sure sometimes my shift light doesnt come on?? Jobo said:. Cue said:. I hardly ever see it as its in a stupid place. Just like the dip stick! Im sure this 'button' has something to do with it as sometimes, like i said, i dont see the light come on, maybe only operates when your foot is hard down ie pressing the button?
AcceleratorKey doesn't enable keyboard functionality, it only indicates to the UIA framework which keys are used. Users have to memorize keyboard accelerators and expect the same or similar results, but this might not always be possible due to differences in functionality across apps. Notice that some of the combinations are not valid for localized versions of Windows. We recommend providing localized keyboard accelerators if the app is localized. As keyboard accelerators are not typically described directly in the UI of your Windows application, you can improve discoverability through tooltips , which display automatically when the user moves focus to, presses and holds, or hovers the mouse pointer over a control.
The tooltip can identify whether a control has an associated keyboard accelerator and, if so, what the accelerator key combination is. By default, when keyboard accelerators are declared, all controls except MenuFlyoutItem and ToggleMenuFlyoutItem present the corresponding key combinations in a tooltip. Accelerator key combo in tooltip.
Accelerator key combo appended to MenuFlyoutItem's text. Control the presentation behavior by using the KeyboardAcceleratorPlacementMode property, which accepts two values: Auto or Hidden. In some cases, you might need to present a tooltip relative to another element typically a container object. Here, we show how to use the KeyboardAcceleratorPlacementTarget property to display the keyboard accelerator key combination for a Save button with the Grid container instead of the button.
In some cases, we recommend using a control's label to identify whether the control has an associated keyboard accelerator and, if so, what the accelerator key combination is. The override text is not be presented if the system cannot detect an attached keyboard you can check this yourself through the KeyboardPresent property.
Input events occur in a specific sequence that you can intercept and handle based on the requirements of your app. In XAML, a keystroke is processed as if there is just one input bubbling pipeline.
For example, if an element has focus and the user presses a key down, a KeyDown event is raised on the element, followed by the parent of the element, and so on up the tree, until the args. Handled property is true. The KeyDown event is also used by some controls to implement the built-in control accelerators. When a control has a keyboard accelerator, it handles the KeyDown event, which means that there won't be KeyDown event bubbling.
AddHandler is set to true. As the CharacterReceived event is fired after the KeyDown event for text controls such as TextBox, you can cancel character input in the KeyDown event handler.
The preview input events are fired before any other events. If you don't handle these events, the accelerator for the element that has the focus is fired, followed by the KeyDown event. Both events bubble until handled. Key event sequence. When the accelerator event is handled, the KeyDown event is also marked as handled. The KeyUp event remains unhandled. A keyboard accelerator event bubbles from the element that has focus up to the root.
If the event isn't handled, the XAML framework looks for other unscoped app accelerators outside of the bubbling path. When two keyboard accelerators are defined with the same key combination, the first keyboard accelerator found on the visual tree is invoked. Scoped keyboard accelerators are invoked only when focus is inside a specific scope. For example, in a Grid that contains dozens of controls, a keyboard accelerator can be invoked for a control only when focus is within the Grid the scope owner.
The UIElement. TryInvokeKeyboardAccelerator method invokes any matching accelerators in the subtree of the element. OnProcessKeyboardAccelerators method is executed before the keyboard accelerator. This method passes a ProcessKeyboardAcceleratorArgs object that contains the key, the modifier, and a Boolean indicating whether the keyboard accelerator is handled. If marked as handled, the keyboard accelerator bubbles so the outside keyboard accelerator is never invoked.
You must check whether the event was marked as handled. We recommend localizing all keyboard accelerators. You can do this with the standard resources.
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