dFont (Function)

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Using the drawing functions
Fonts

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dFont (Function)

In french: dPolice

Declares the font that will be used by dText:

in an Image control,
in a variable of type Image.
in a variable of type WDPic (on the background layer),
in a variable of type picLayer.

Caution: In Linux, this function requires a specific configuration. For more details, see Drawing in WINDEV, WEBDEV and WINDEV Mobile.

Example

See additional examples

// Initialise le dessin dans un champ Image
dStartDrawing(IMG_Dessin)

// Déclaration de la police de caractères :
// Arial, taille 12, gras
dFont("Arial", 12, iBold)

// Déclaration de la police de caractères :
// Arial, taille 12, gras
dFont(IMG_Dessin, "Arial", 12, iBold)

Syntax

Using a specific font for the drawings Hide the details

dFont([<Image>, ] [, [, [, <Text inclination>]]])

<Image>: Optional control name or optional Image, WDPic or picLayer variable

Image to use. This image can correspond to:
the name of an Image control.
the name of a variable of type Image.
the name of a variable of type WDPic. Only the background layer will be handled.
the name of a variable of type picLayer.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.

: Character string

Name of the font used when the text is drawn by dText. This parameter must not correspond to a font family. The list of fonts installed on the current computer is returned by FontList.
If the name of the font is not found, Windows searches for a font whose name is close to the requested one. To do so, dStartDrawing must have been used.

: Optional integer

Size of the font (in pixels). The default value is 12.

: Optional constant (or combination of constants)

Font attributes to use:
iBold Assigns the bold attribute to the text drawn.
iItalic Assigns the italic attribute to the text drawn.
iNormal
(Default value) Normalizes the text drawn
iStrikeOut Strikes the text drawn.
iUnderlined Underlines the text drawn.

<Text inclination>: Optional integer

Specifies the inclination of the text (in degrees). The default value is 0.

Using a font created programmatically Hide the details

dFont([<Image>, ] )

<Image>: Optional control name or optional Image, WDPic or picLayer variable

Image to use. This image can correspond to:
the name of an Image control.
the name of a variable of type Image.
the name of a variable of type WDPic. Only the background layer will be handled.
the name of a variable of type picLayer.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.

: Font

Font that will be used for the drawings. This parameter corresponds to a variable of type Font. The font characteristics have been defined with FontCreate or via the font properties.

Remarks

Using the drawing functions

The drawing functions can be used according to 2 methods:

Method 1: Using the dDrawingStartfunction
- dStartDrawing must be called before any other drawing function. dStartDrawing is used to define the element (Image control or variable) to which the drawing functions will be applied.
- When drawing on an Image control:
  - The drawing functions operate on a copy ("bitmap") of the image. You can use the drawing functions of Windows (via API or CallDLL32) but these functions must use the DC (Device Context) returned by dStartDrawing.
  - dEndDrawing and dStartDrawing must not be called in the same process.
    If function dEndDrawing is called in the same process as function dStartDrawing, the drawing will not appear: it will be automatically deleted.
Method 2: specify design destination directly in syntax (via parameter)
The <Image> parameter is used to specify directly the target of the drawing. dStartDrawing becomes useless. This function must be deleted.

Fonts

FontList is used to retrieve the list of valid fonts (TrueType, PostScript) installed on the current computer.

To get the best possible result when angling the text drawn, the used must be a "TrueType" font.

Business / UI classification: Neutral code

Component: wd300pnt.dll