TGIS_BitmapAbstract.ApplyOpacity method

DK for .NET | TatukGIS.NDK.TGIS_BitmapAbstract.ApplyOpacity | Fields | Methods | Properties

Apply opacity to the bitmap.

Available also on: Delphi | Java | Python.

// C#
public virtual abstract void ApplyOpacity(
  int _transparency
);

' VisualBasic
Public Overridable MustOverride Sub ApplyOpacity(
  ByVal _transparency As Integer
)

// Oxygene
public
  procedure ApplyOpacity(
    _transparency : Integer
  ); virtual; abstract;

PURPOSE: Adjusts the current bitmap opacity before further rendering or compositing.

BEHAVIOR: Delegates to the underlying platform bitmap to apply the specified opacity value to the image.

USAGE: Fade an off-screen bitmap before drawing new content.

alpha = Round(calcAlpha)
buffer.ApplyOpacity(alpha)