Default C++ constructor.

This constructs a fully initialized TDrawTextLayoutContext object. Its view rectangle, iLabelMarginWidth and iGutterMarginWidth and iTextStartX are all initialized to zero, the background colour is initialized to the default system background colour, text and graphics are set to be drawn and clipping is set. The graphics context is initialised to null.

This function is identical to IsLabelMargin().

Tests whether the region filled with paragraph fill colour is the area within the paragraph only, or also the area within the left text margin. 7.0

This function is obsolete. When a text object is drawn, all parts of it are drawn.

Sets the graphics context for drawing text and pictures.

Sets the horizontal extent of a paragraph to be filled with paragraph fill colour. 7.0

Overrides the existing text colour, so that when redrawn, all text has the colour specified, rather than the colour which is set in the text object. To return the text to its original colour, call this function again with an argument of null.

Gets the text area. The text area is the view rectangle minus the label and gutter margins.

If the text colour is overridden, this function gets the text override colour, as set by SetTextColorOverride().

Gets the window coordinates of the top left hand corner at which text may be drawn. This point has the same vertical coordinate as the top of the text area, but its horizontal coordinate is increased by the left text margin width (iTextStartX). This point is the origin for layout coordinates.

Gets the (window) coordinates of the top left hand corner of the text area.

Gets the area occupied by the label and gutter margins.

Tests whether the background colour is used, as set by SetDrawToEveryPixel().

Tests whether clipping is set to the intersection of the draw rectangle, (the aDrawRect parameter passed to CTextLayout::DrawL() or InvertRangeL()) and the text area.

Tests if the graphics context for drawing is either CWindowGc or CBitmapContext.

Tests if a CWindowGc is being used.

Converts a point in window coordinates to layout coordinates. Window coordinates have their origin at the top left corner of the view window. Layout coordinates have their origin at the top left corner of the area within the view rectangle in which text can appear, (this value is returned by TopLeftText()).

The background colour for the view rectangle. The background colour is used to fill the parts of the view rectangle in which text cannot appear, for example, below the last line of the document and in the label, line cursor and left text margins.

The gutter margin width (also known as the line cursor margin width). By default zero.

The label margin width. By default zero. Must have the same value as the label margin width as set in the text layout object.

The horizontal offset between window coordinates and text layout coordinates.

The view rectangle (specified in window coordinates). This is used to set the area in which text can be drawn. Text can only be drawn within the intersection between the text area and the aDrawRect parameter passed to CTextLayout::DrawL() or InvertRangeL().