ID2D1DeviceContext::GetEffectInvalidRectangleCount method (d2d1_1.h)

Gets the number of invalid output rectangles that have accumulated on the effect.

Syntax

HRESULT GetEffectInvalidRectangleCount(
  [in]  ID2D1Effect *effect,
  [out] UINT32      *rectangleCount
);

[in] effect

The effect to count the invalid rectangles on.

[out] rectangleCount

Type: UINT32*

The returned rectangle count.

Type: HRESULT

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

HRESULT	Description
S_OK	No error occurred.
E_OUTOFMEMORY	Direct2D could not allocate sufficient memory to complete the call.
E_INVALIDARG	An invalid parameter was passed to the returning function.

Requirement	Value
Minimum supported client	Windows 8 and Platform Update for Windows 7 [desktop apps \| UWP apps]
Minimum supported server	Windows Server 2012 and Platform Update for Windows Server 2008 R2 [desktop apps \| UWP apps]
Target Platform	Windows
Header	d2d1_1.h
DLL	D2d1.dll