TGIS_BitmapFMX.MakeTransparent method

DK for Delphi | FMX.GisFramework.TGIS_BitmapFMX.MakeTransparent | Constructors | Fields | Methods | Properties

Make the bitmap fully transparent.

Overrides TGIS_BitmapAbstract.MakeTransparent.

// Delphi
public
  procedure MakeTransparent; override;

// C++ Builder
public:
  virtual void MakeTransparent(void);

PURPOSE: Resets the bitmap so it can be reused as a fully transparent drawing surface.

BEHAVIOR: Delegates to the underlying platform bitmap to apply full transparency to the entire image.

USAGE: Prepare a bitmap buffer before drawing a new frame.

buffer = TGIS_Bitmap(width, height)
buffer.Clear(TGIS_Color.FromARGB(255, 255, 255, 255))
buffer.MakeTransparent()