TCustomImage.Paint procedure
Draws the image to the control canvas.
Declaration
procedure Paint; overrideDescription
Paint is an overridden procedure used to draw the image to the
control
Canvas. At design-time, a dashed black line is drawn
around the image as a frame to mark the dimensions for its content.
Paint uses the Canvas from the ancestor class as the target for the drawing
operation. The value in AntialiasingMode is assigned to the
corresponding property in the Canvas. The rectangle returned from
DestRect is used as the drawing area.
TGraphic
instance has not been assigned to the Graphic property in
Picture, or the ancestor class does not have an assigned Canvas.
Paint signals the OnPaintBackground event handler (when assigned)
using the canvas and drawing rectangle to render the background for the
image.
If the image is loaded using Images and ImageIndex, the canvas scaling factor
is applied (when needed) to the width and height for the bitmap image. The
StretchDraw method in the Canvas is used to render the image
content to the display rectangle on the canvas.
Paint calls the inherited Paint method to ensure that the OnPaint
event handler is signalled (when assigned).
Modified in LCL version 4.4 to perform image scaling (when needed) using the canvas scaling factor for the widgetset.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.