PFN_DATARATE_NOTIFICATION callback function (netdispumdddi.h)
Called by the operating system to notify the Miracast user-mode driver that the bit rate of the Miracast network link has changed. This function is registered with the operating system when the RegisterForDataRateNotifications function is called.
Syntax
PFN_DATARATE_NOTIFICATION PfnDatarateNotification;
void PfnDatarateNotification(
[in] PVOID context,
[in, optional] MIRACAST_DATARATE_STATS *pDataRateStats
)
{...}
Parameters
[in] context
A pointer to a context block associated with a display adapter.
The context value is the value the driver passed in its call to the RegisterForDataRateNotifications function when it registered the pfnDataRateNotify function.
[in, optional] pDataRateStats
An optional pointer to a MIRACAST_DATARATE_STATS structure that contains info on the audio/video encoder bit rate and failed or retried Wi-Fi frames.
Can be NULL if the network has an error. For more info, see Remarks.
Return value
None
Remarks
If data on the quality of service (QoS) of the network connection becomes unavailable, the pDataRateStats parameter will be set to NULL, and this function will not be called again.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 |
| Minimum supported server | Windows Server 2012 R2 |
| Target Platform | Desktop |
| Header | netdispumdddi.h (include Netdispumdddi.h) |