ID2D1RenderTarget::DrawText method

• 12/05/2018
• 2 minutes to read

Draws the specified text using the format information provided by an IDWriteTextFormat object.

Syntax

void DrawText(
  const WCHAR            *string,
  UINT32                 stringLength,
  IDWriteTextFormat      *textFormat,
  const D2D1_RECT_F &    layoutRect,
  ID2D1Brush             *defaultFillBrush,
  D2D1_DRAW_TEXT_OPTIONS options,
  DWRITE_MEASURING_MODE  measuringMode
);

Parameters

string

Type: WCHAR*

A pointer to an array of Unicode characters to draw.

stringLength

Type: UINT

The number of characters in string.

textFormat

Type: IDWriteTextFormat*

An object that describes formatting details of the text to draw, such as the font, the font size, and flow direction.

layoutRect

Type: const D2D1_RECT_F

The size and position of the area in which the text is drawn.

defaultFillBrush

Type: ID2D1Brush*

The brush used to paint the text.

options

Type: D2D1_DRAW_TEXT_OPTIONS

A value that indicates whether the text should be snapped to pixel boundaries and whether the text should be clipped to the layout rectangle. The default value is D2D1_DRAW_TEXT_OPTIONS_NONE, which indicates that text should be snapped to pixel boundaries and it should not be clipped to the layout rectangle.

measuringMode

Type: DWRITE_MEASURING_MODE

A value that indicates how glyph metrics are used to measure text when it is formatted. The default value is DWRITE_MEASURING_MODE_NATURAL.

Return value

This method does not return a value.

Remarks

To create an IDWriteTextFormat object, create an IDWriteFactory and call its CreateTextFormat method.

This method doesn't return an error code if it fails. To determine whether a drawing operation (such as DrawText) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.

Examples

For an example, see How to: Draw Text.

Requirements

See also

DWRITE_MEASURING_MODE

DrawTextLayout

How to: Draw Text

ID2D1RenderTarget

Text Formatting and Layout