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PFN_IDDCXSWAPCHAININSYSTEMMEMORY callback function (iddcx.h)

  • Article

PFN_IDDCXSWAPCHAININSYSTEMMEMORY is a pointer to an OS callback function through which to determine whether swapchain buffers are allocated in system memory.

Syntax

PFN_IDDCXSWAPCHAININSYSTEMMEMORY PfnIddcxswapchaininsystemmemory;

HRESULT * PfnIddcxswapchaininsystemmemory(
  [in]  PIDD_DRIVER_GLOBALS DriverGlobals,
  [in]  IDDCX_SWAPCHAIN SwapChainObject,
  [out] BOOL *pInSystemMemory
)
{...}

Parameters

[in] DriverGlobals

Pointer to an IDD_DRIVER_GLOBALS structure containing system-defined per-driver data.

[in] SwapChainObject

The IDDCX_SWAPCHAIN object passed to the EVT_IDD_CX_MONITOR_ASSIGN_SWAPCHAIN call.

[out] pInSystemMemory

Output arguments of the functions.

Return value

PFN_IDDCXSWAPCHAININSYSTEMMEMORY returns S_OK; otherwise it returns an appropriate error code.

Remarks

An indirect display driver (IDD) should not use this pointer to directly call the function that it points to. IDDs should instead call IddCxSwapChainInSystemMemory.

Requirements

Requirement Value
Minimum supported server Windows Server 2022
Header iddcx.h

See also

IddCxSwapChainInSystemMemory