DXGKDDI_MIRACAST_CREATE_CONTEXT - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// dispmprt.h
DXGKDDI_MIRACAST_CREATE_CONTEXT DxgkddiMiracastCreateContext;
NTSTATUS DxgkddiMiracastCreateContext(
[in] PVOID DriverContext,
[in] DXGK_MIRACAST_DISPLAY_CALLBACKS *MiracastCallbacks,
[out] PVOID *MiracastContext,
[out] ULONG *TargetId
)
{...}
View the official Windows Driver Kit DDI referenceNo description available.
Creates a kernel-mode context for a Miracast device.
DriverContext [in]A handle to a context block that is associated with a display adapter. The display miniport driver's DxgkDdiAddDevice function previously provided this handle to the DirectX graphics kernel subsystem.
MiracastCallbacks [in]A pointer to an operating system-provided buffer that holds a DXGK_MIRACAST_DISPLAY_CALLBACKS structure that has pointers to callback functions that the driver can call.
MiracastContext [out]A pointer to an operating system-provided buffer that holds the address of the context that the driver allocated for this Miracast device instance.
TargetId [out]A pointer to an operating system-provided buffer that holds the ID of the VidPN target that the Miracast device is connected to. The driver should report this target as type D3DKMDT_VOT_MIRACAST when the operating system calls the DxgkDdiQueryChildRelations function during device initialization.
Returns STATUS_SUCCESS if it succeeds. Otherwise, it returns one of the error codes that are defined in Ntstatus.h, including:
| Return code | Description |
|---|---|
| STATUS_RESOURCE_IN_USE | The hardware resources needed to support a Miracast connected session aren't currently available. |
When this function is called, the display miniport driver should prepare all kernel-mode resources that it needs to support a Miracast connected session.
The operating system groups the DxgkDdiMiracastCreateContext, DxgkDdiMiracastDestroyContext, and DxgkDdiMiracastIoControl functions as a Miracast class. The operating system guarantees that these functions follow the second-level synchronization mode as defined in Threading and Synchronization Second Level. These functions can be called when other level 0, 1, or other classes of level 2 functions are being called on another thread context. However, only one of these level 2 Miracast-class functions can be called at a time.
DXGK_MIRACAST_DISPLAY_CALLBACKS