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NF:ks.KsCreatePin |
KsCreatePin function (ks.h) |
The KsCreatePin function passes a connection request to a device, creating a pin instance. This function can only be called at PASSIVE_LEVEL for kernel-mode clients. |
stream\kscreatepin.htm |
stream |
04/23/2018 |
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KsCreatePin, KsCreatePin function [Streaming Media Devices], ks/KsCreatePin, ksfunc_f49fab36-1309-4eec-addb-4eba94583692.xml, stream.kscreatepin |
ks.h |
Ks.h |
Universal |
Ks.lib |
Windows |
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The KsCreatePin function passes a connection request to a device, creating a pin instance. This function can only be called at PASSIVE_LEVEL for kernel-mode clients.
Specifies the handle of the filter initiating the create request and where the connection will occur.
Pointer to a KSPIN_CONNECT structure that contains parameters for the requested connection. This should be followed in memory by a KSDATAFORMAT data structure, describing the data format requested for the connection.
Specifies the access desired to the pin. This is typically GENERIC_READ or GENERIC_WRITE. For data flowing into the pin this value should be set to GENERIC_WRITE, and for data flowing out of the pin this should be set to GENERIC_READ regardless of the communication method.
Specifies the connection handle passed. The routine fills this in with a handle to the file object of the created connection. This value can then be used to disconnect with the CloseHandle function.
The KsCreatePin function returns STATUS_SUCCESS if the connection was successful, or it returns an error if the connection failed. Additionally, this Win32 error code (from Winerror.h) can be returned:
The routine sends an IRP_MJ_CREATE request to the driver. The driver accepts the request only if the interface, medium, and data format are compatible.
If Connect->PinToHandle is NULL, KsCreatePin creates a pin the caller can use to send requests to the streaming driver specified in Connect->FilterHandle. Connect->PinId determines the pin type of the pin to be created.