D3DDDIARG_LOCKASYNC - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// d3dumddi.h

typedef struct _D3DDDIARG_LOCKASYNC {
  [in]  HANDLE                 hResource;
  [in]  UINT                   SubResourceIndex;
  [in]  D3DDDI_LOCKASYNCFLAGS  Flags;
  union {
    [in]  D3DDDIRANGE Range;
    [in]  RECT        Area;
    [in]  D3DDDIBOX   Box;
  };
  [out] HANDLE                 hCookie;
  [out] VOID                   *pSurfData;
  [out] UINT                   Pitch;
  [out] UINT                   SlicePitch;
        D3DGPU_VIRTUAL_ADDRESS GpuVirtualAddress;
} D3DDDIARG_LOCKASYNC;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-d3dumddi-_d3dddiarg_lockasync)

_D3DDDIARG_LOCKASYNC structure

Description

The D3DDDIARG_LOCKASYNC structure describes a resource or a surface within the resource to lock.

Members

hResource [in]

A handle to the resource to be locked.

SubResourceIndex [in]

The zero-based index into the resource that hResource specifies. This index indicates the subresource or surface to be locked.

Flags [in]

A D3DDDI_LOCKASYNCFLAGS structure that indicates, in bit-field flags, how to lock the resource.

Note Some flags are mutually exclusive with other flags. For more information, see the following Remarks section.

Range [in]

A D3DDDIRANGE structure that describes the subrange of the linear resource to lock, if the RangeValid bit-field flag is set in the D3DDDI_LOCKASYNCFLAGS structure that Flags specifies.

Area [in]

A RECT structure that describes the subrectangle of the surface to lock, if the AreaValid bit-field flag is set in the D3DDDI_LOCKASYNCFLAGS structure that Flags specifies.

Box [in]

A D3DDDIBOX structure that describes the subvolume of the volume to lock, if the BoxValid bit-field flag is set in the D3DDDI_LOCKASYNCFLAGS structure that Flags specifies.

hCookie [out]

A handle that represents the renamed resource. This handle is valid only if the Discard bit-field flag is set in the D3DDDI_LOCKASYNCFLAGS structure that Flags specifies.

pSurfData [out]

A pointer to the memory region for the resource that was locked. The user-mode display driver's LockAsync function returns this pointer to the Microsoft Direct3D runtime.

Pitch [out]

The pitch, in bytes, of the surface that was locked. The user-mode display driver's LockAsync function returns this pitch value to the Direct3D runtime.

SlicePitch [out]

The slice pitch, in bytes, of the surface that was locked. The user-mode display driver's LockAsync function returns this slice pitch value to the Direct3D runtime.

GpuVirtualAddress

This member is reserved and should be set to zero.

This member is available beginning with Windows 7.

Remarks

The members of the D3DDDI_LOCKASYNCFLAGS structure that the Flags member specifies must adhere to the following rules:

See also

D3DDDI_LOCKASYNCFLAGS

LockAsync

RECT

View the official Windows Driver Kit DDI reference

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