IXRBrush::GetOpacity (Windows Embedded CE 6.0)

Article
01/05/2012

1/6/2010

This method retrieves the degree of opacity of this brush object.

Syntax

virtual HRESULT STDMETHODCALLTYPE GetOpacity(
    float* pOpacity
) = 0;

Parameters

pOpacity
[out] Pointer to a float value that indicates the degree of opacity of this brush object. This value can range from 0 to 1.

Return Value

Returns an HRESULT that indicates success or failure.

Remarks

A pOpacity value of 0 indicates that the brush is completely transparent, whereas a value of 1 indicates that the brush is completely opaque. A value of 0.5 indicates that the brush is 50% opaque, a value of 0.725 indicates that the brush is 72.5% opaque, and so on. Values less than 0 are treated as 0, and values greater than 1 are treated as 1.

If pOpacity is 0, the brush is still hit testable. Only a true null brush is not hit testable. To remove hit testing against an IXRUIElement where this brush is applied, call IXRUIElement::SetIsHitTestVisible on that IXRUIElement object.

.NET Framework Equivalent

System.Windows.Media.Brush.Opacity

Requirements

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME
Windows Embedded CE	Windows Embedded CE 6.0 R3

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