IXRControl (Compact 2013)

Статья
04/19/2017

3/28/2014

This class represents the base class for UI elements that use a control template to define their appearance.

Syntax

class IXRControl : public IXRFrameworkElement

Inheritance Hierarchy

IXRControl

Methods

Method	Description
IXRControl::AddIsEnabledChangedEventHandler	Attaches a delegate to the IsEnabledChanged event for this control.
IXRControl::Focus	Attempts to transfer the UI focus to this control.
IXRControl::GetBackground	Retrieves a brush that paints the background of this control.
IXRControl::GetBorderBrush	Retrieves a brush that defines the border background of this control.
IXRControl::GetBorderThickness	Retrieves a value that describes the width of the frame surrounding this control.
IXRControl::GetFontFamily	Retrieves the font that is used to display text in this control.
IXRControl::GetFontSize	Retrieves the size of the text in this control.
IXRControl::GetFontStretch	Retrieves a value that indicates how much a font is condensed or expanded on-screen.
IXRControl::GetFontStyle	Retrieves the style in which the text is rendered.
IXRControl::GetFontWeight	Retrieves a value that indicates the density of a typeface, as measured by the lightness or heaviness of the strokes.
IXRControl::GetForeground	Retrieves a brush that paints the foreground of this control.
IXRControl::GetHorizontalContentAlignment	Retrieves the horizontal alignment of the content in this control.
IXRControl::GetIsEnabled	Retrieves a value that indicates whether this control is enabled in the UI.
IXRControl::GetIsTabStop	Retrieves a value that indicates whether this control is included in the tab order and is thus able to receive UI focus.
IXRControl::GetPadding	Retrieves a value that measures the space between the content of this control and its margin.
IXRControl::GetTabIndex	Retrieves a value that determines the order in which elements receive the UI focus when the user navigates through controls by using the TAB key.
IXRControl::GetTabNavigation	Retrieves a value that modifies how tabbing and tab indexes work for this control.
IXRControl::GetTemplate	Retrieves the control template that is used to define the appearance of this control.
IXRControl::GetVerticalContentAlignment	Retrieves the vertical alignment of the content in this control.
IXRControl::GoToVisualState	Transitions the control between two states.
IXRControl::RemoveIsEnabledChangedEventHandler	Removes a delegate from the IsEnabledChanged event for this control.
IXRControl::SetBackground	Sets the brush that provides the background of this control.
IXRControl::SetBorderBrush	Sets the brush that defines the border background of this control.
IXRControl::SetBorderThickness	Sets a value that describes the new width of the frame surrounding this control.
IXRControl::SetFontFamily	Retrieves the font that is used to display text in this control.
IXRControl::SetFontSize	Sets the size of the text in this control.
IXRControl::SetFontStretch	Sets a value that indicates how much a font is condensed or expanded on screen.
IXRControl::SetFontStyle	Sets the style in which the text is rendered.
IXRControl::SetFontWeight	Sets a value that indicates the density of a typeface, as measured by the lightness or heaviness of the strokes.
IXRControl::SetForeground	Sets the brush that paints the foreground of this control.
IXRControl::SetHorizontalContentAlignment	Sets the horizontal alignment of the content in this control.
IXRControl::SetIsEnabled	Sets a value that indicates whether this control is enabled in the UI.
IXRControl::SetIsTabStop	Sets a value that indicates whether this control is included in the tab order and is thus able to receive UI focus.
IXRControl::SetPadding	Sets a new measurement for the space between the content of this control and its margin.
IXRControl::SetTabIndex	Sets a value that determines the order in which elements receive the UI focus when the user navigates through controls by using the TAB key.
IXRControl::SetTabNavigation	Sets a value that modifies how tabbing and tab indexes work for this control.
IXRControl::SetTemplate	Sets the control template that is used to define the appearance of this control.
IXRControl::SetVerticalContentAlignment	Sets the vertical alignment of the content in this control.

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

The IXRControl class is the base class for many of the controls that you add to an application, such as an item control or a text-box control. Each of these controls uses a control template to define their appearance.

You can define a control template in the source XAML for Windows Embedded XAML for your application. 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 ControlTemplate Class on MSDN.

When the source XAML is parsed into a visual tree, this control template is represented by an IXRControlTemplate object.

The methods IXRControl::GetTemplate and IXRControl::SetTemplate are used to specify the appearance of an IXRControl object. These methods access an IXRControlTemplate object that defines the appearance of the control.

If you want to change the appearance of a control yet keep its functionality, you might consider creating a new control template for an IXRControl object, instead of creating a new control class.

IXRControl has a derived class, IXRUserControl, that is the intended intermediate base class for quickly creating custom controls. Although IXRUserControl inherits the template from the IXRControl class, you cannot apply an IXRControlTemplate to an IXRUserControl. You can include other UI elements in an IXRUserControl, even other controls such as IXRButton.

If you want to create a control with custom behavior, your control can inherit from IXRCustomUserControl; however, this control also cannot use an IXRControlTemplate.

To create a custom XAML tag, use the functionality provided by IXRApplication::RegisterXamlObject and PFN_CREATE_XAMLOBJECT.

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

.NET Framework Equivalent

System.Windows.Controls.Control

Requirements

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME

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