IXRPopup (Compact 2013)

Статья
04/19/2017

3/28/2014

This class displays content over existing content.

Syntax

class IXRPopup : public IXRFrameworkElement

Inheritance Hierarchy

IXRDependencyObject

IXRUIElement

IXRFrameworkElement

IXRPopup

Methods

In addition to the methods inherited from IXRFrameworkElement, this class exposes the following methods.

Name	Description
IXRPopup::AddClosedEventHandler	Attaches a delegate to the Closed event for this popup.
IXRPopup::AddOpenedEventHandler	Attaches a delegate to the Opened event for this popup.
IXRPopup::GetChild	Retrieves the content to be hosted in the popup.
IXRPopup::GetHorizontalOffset	Retrieves the distance between the left side of the parent control and the left side of the popup.
IXRPopup::GetIsOpen	Retrieves whether the popup is currently displaying on the screen.
IXRPopup::GetVerticalOffset	Retrieves the distance between the top of the parent control and the top of the popup.
IXRPopup::RemoveClosedEventHandler	Removes a delegate from the Closed event for this popup.
IXRPopup::RemoveOpenedEventHandler	Removes a delegate from the Opened event for this popup.
IXRPopup::SetChild	Sets the content to be hosted in the popup.
IXRPopup::SetHorizontalOffset	Sets the distance between the left side of the parent control and the left side of the popup.
IXRPopup::SetIsOpen	Sets whether the popup is to be displayed on the screen.
IXRPopup::SetVerticalOffset	Sets the distance between the top of the parent control and the top of the popup.

Thread Safety

Members of this class are thread-safe if you previously called IXRApplication::CreateHostFromXaml and supplied it with an XRWindowCreateParams structure that has AllowsMultipleThreadAccess set to true.

Remarks

You typically use the IXRPopup class to temporarily display content that performs a particular task. For example, you might use a popup to display help information when the user moves the mouse pointer over a particular control. The content of the IXRPopup is set by using its Child property, and can be any IXRUIElement.

You would typically create a user control to host the popup content, but this is not required. A popup will always appear over the existing content. This includes other popup controls. When you apply scaling or transforms to the parent control of an IXRPopup they are also applied to the popup.

When you create a class instance, use an IXRPopupPtr smart pointer instead of a raw interface pointer. For more information, see XRPtr<Interface>.

You can also define an IXRPopup object in Microsoft Silverlight 3 XAML. For information about the differences between XAML in XAML for Windows Embedded and Silverlight 3, see Differences Between Microsoft Silverlight 3 and XAML for Windows Embedded. For more information about how to define this element in the source XAML for your application, see the Popup Class on MSDN.

.NET Framework Equivalent

System.Windows.Controls.Primitives.Popup

Requirements

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME

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