Declaration

constructor Create(ABitmap: TBitmap32); reintroduce; virtual;

Parameters

Parameter	Type	Description
ABitmap	TBitmap32	Target bitmap surface on which vector path shapes and text will be rendered. Must not be nil.

Description

Create instantiates a new TCanvas32 vector canvas bound to target bitmap ABitmap.

During initialization, Create:

• Assigns Bitmap reference (ABitmap).
• Instantiates a default polygon renderer instance (Renderer) via GetPolygonRendererClass.
• Initializes the brush collection (Brushes) with a change listener attached to trigger canvas redraws on brush modifications.

Raises an exception if ABitmap is nil.

Example

var
  Bitmap: TBitmap32;
  Canvas: TCanvas32;
  SolidBrush: TSolidBrush;
begin
  Bitmap := TBitmap32.Create(400, 300);
  try
    Bitmap.Clear(clWhite32);

    Canvas := TCanvas32.Create(Bitmap);
    try
      SolidBrush := TSolidBrush(Canvas.Brushes.Add(TSolidBrush));
      SolidBrush.FillColor := clRed32;

      Canvas.Rectangle(FloatRect(50.0, 50.0, 250.0, 200.0));
    finally
      Canvas.Free;
    end;
  finally
    Bitmap.Free;
  end;
end;