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ID2D1DeviceContext::GetEffectInvalidRectangleCount method (d2d1_1.h)

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

Syntax

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

Parameters

[in] effect

Type: ID2D1Effect*

The effect to count the invalid rectangles on.

[out] rectangleCount

Type: UINT32*

The returned rectangle count.

Return value

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.

Requirements

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

See also

ID2D1DeviceContext