ImageGear .NET v25.1 - Updated
SpotlightsPreview Method




ImageGear.Processing.Advanced Assembly > ImageGear.Processing Namespace > ImGearEffects Class : SpotlightsPreview Method
Page to apply the effect to.
Page to apply preview of the effect to.
Array of objects specifying spotlight parameters.
Amount to darken the unilluminated area by. Value of 0.0 results in no darkening; value of 1.0 makes unilluminated area black.
This method creates a reduced size preview for the Spotlights effect.
Syntax
'Declaration
 
Public Shared Sub SpotlightsPreview( _
   ByVal page As ImGearRasterPage, _
   ByVal previewPage As ImGearRasterPage, _
   ByVal lights() As ImGearSpotlight, _
   ByVal darkenBy As Double _
) 
'Usage
 
Dim page As ImGearRasterPage
Dim previewPage As ImGearRasterPage
Dim lights() As ImGearSpotlight
Dim darkenBy As Double
 
ImGearEffects.SpotlightsPreview(page, previewPage, lights, darkenBy)
public static void SpotlightsPreview( 
   ImGearRasterPage page,
   ImGearRasterPage previewPage,
   ImGearSpotlight[] lights,
   double darkenBy
)
public: static void SpotlightsPreview( 
   ImGearRasterPage* page,
   ImGearRasterPage* previewPage,
   ImGearSpotlight*[]* lights,
   double darkenBy
) 
public:
static void SpotlightsPreview( 
   ImGearRasterPage^ page,
   ImGearRasterPage^ previewPage,
   array<ImGearSpotlight^>^ lights,
   double darkenBy
) 

Parameters

page
Page to apply the effect to.
previewPage
Page to apply preview of the effect to.
lights
Array of objects specifying spotlight parameters.
darkenBy
Amount to darken the unilluminated area by. Value of 0.0 results in no darkening; value of 1.0 makes unilluminated area black.
Remarks
This method creates a reduced size preview for the Spotlights method effect. It accepts the same parameters you would use for the full size image, so you don't have to recalculate them to account for the reduced size of the preview.

The spotlights effect darkens the image and highlights selected areas as if they are illuminated with a spotlight or sunlight.

See Also

Reference

ImGearEffects Class
ImGearEffects Members
ImGearRasterPage Class
ImGearSpotlight Class
Spotlights Method