Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
msPlayToPrimary is a read/write property which gets or sets the primary DLNA PlayTo device.
This proprietary property is specific to Internet Explorer and Microsoft Edge.
Syntax
ptr = object.msPlayToPrimary;
Value
Boolean value set to true indicates that the device is the primary DLNA PlayTo device, otherwise false.
Example
// Microsoft extensions
interface HTMLImageElement : HTMLElement
{
attribute boolean msPlayToDisabled;
attribute boolean msPlayToPrimary;
attribute DOMString msPlayToPreferredSourceUri;
};