DisplayProperties.LogicalDpiChanged 事件
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
注意
在Windows 8.1后，DisplayProperties 可能会更改或不可用。 请改用 DisplayInformation。
当 LogicalDpi 属性更改时发生，因为每英寸像素 (PPI) 显示更改。
public:
static event DisplayPropertiesEventHandler ^ LogicalDpiChanged;/// [add: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, Windows.Foundation.UniversalApiContract)]
/// [remove: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, Windows.Foundation.UniversalApiContract)]
// Register
static event_token LogicalDpiChanged(DisplayPropertiesEventHandler const& handler) const;
// Revoke with event_token
static void LogicalDpiChanged(event_token const* cookie) const;
// Revoke with event_revoker
static DisplayProperties::LogicalDpiChanged_revoker LogicalDpiChanged(auto_revoke_t, DisplayPropertiesEventHandler const& handler) const;/// [add: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Foundation.UniversalApiContract")]
/// [remove: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Foundation.UniversalApiContract")]
// Register
static event_token LogicalDpiChanged(DisplayPropertiesEventHandler const& handler) const;
// Revoke with event_token
static void LogicalDpiChanged(event_token const* cookie) const;
// Revoke with event_revoker
static DisplayProperties::LogicalDpiChanged_revoker LogicalDpiChanged(auto_revoke_t, DisplayPropertiesEventHandler const& handler) const;[add: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, typeof(Windows.Foundation.UniversalApiContract))]
[remove: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, typeof(Windows.Foundation.UniversalApiContract))]
public static event DisplayPropertiesEventHandler LogicalDpiChanged;[add: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Foundation.UniversalApiContract")]
[remove: Windows.Foundation.Metadata.Deprecated("DisplayProperties may be altered or unavailable for releases after Windows Phone 8.1. Instead, use DisplayInformation.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Foundation.UniversalApiContract")]
public static event DisplayPropertiesEventHandler LogicalDpiChanged;function onLogicalDpiChanged(eventArgs) { /* Your code */ }
Windows.Graphics.Display.DisplayProperties.addEventListener("logicaldpichanged", onLogicalDpiChanged);
Windows.Graphics.Display.DisplayProperties.removeEventListener("logicaldpichanged", onLogicalDpiChanged);
- or -
Windows.Graphics.Display.DisplayProperties.onlogicaldpichanged = onLogicalDpiChanged;Public Shared Custom Event LogicalDpiChanged As DisplayPropertiesEventHandler 事件类型
- 属性