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Applications use the methods of the IDirect3DQuery9 interface to perform asynchronous queries on a driver.
| Method | Description |
|---|---|
| IDirect3DQuery9::GetData | Polls a queried resource to get the query state or a query result. For more information about queries, see Queries. |
| IDirect3DQuery9::GetDataSize | Gets the number of bytes in the query data. |
| IDirect3DQuery9::GetDevice | Gets the device that is being queried. |
| IDirect3DQuery9::GetType | Gets the query type. |
| IDirect3DQuery9::Issue | Issue a query. |
The LPDIRECT3DQUERY9 and PDIRECT3DQUERY9 types are defined as pointers to the IDirect3DQuery9 interface.
typedef struct IDirect3DQuery9 *LPDIRECT3DQUERY9, *PDIRECT3DQUERY9;
Header: Declared in D3d9.h.
Import Library: Use D3d9.lib.