dFont (Function)

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Drawing functions

Functions for handling graphic strings

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 an Image variable.
Versions 25 and later
in a WDPic variable (on the background layer).
New in version 25
in a WDPic variable (on the background layer).
in a WDPic variable (on the background layer).
Versions 25 and later
in a picLayer variable.
New in version 25
in a picLayer variable.
in a picLayer variable.

Versions 15 and later

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

New in version 15

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

See additional examples

// Initialize the drawing in an Image control
dStartDrawing(IMG_Drawing)

// Declare the character font:
// Arial, size 12, bold
dFont("Arial", 12, iBold)

Versions 24 and later

// Declare the character font:
// Arial, size 12, bold
dFont(IMG_Drawing, "Arial", 12, iBold)

New in version 24

// Declare the character font:
// Arial, size 12, bold
dFont(IMG_Drawing, "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

Versions 24 and later
Image to use. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
New in version 24
Image to use. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
Image to use. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
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:
iStrikeOut Strikes the text drawn.
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
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 by programming Hide the details

dFont([<Image>, ] )

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

Versions 24 and later
Image to use. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
New in version 24
Image to use. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
Image to use. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
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 Font variable. The font characteristics have been defined by FontCreate or via the properties for font management.

Remarks

Using the drawing functions

The drawing functions can be used according to 2 methods:

Method 1: Using dStartDrawing
- 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.
    The drawing will not be displayed if dEndDrawing and dStartDrawing are called in the same process: it will be automatically erased.
Versions 24 and later
Method 2: indicating the drawing target directly in the syntax (via a parameter)
The <Image> parameter is used to specify directly the target of the drawing. dStartDrawing becomes useless. This function must be deleted.
Versions 25 and later
This syntax is now available.
New in version 25
This syntax is now available.
This syntax is now available.
New in version 24
Method 2: indicating the drawing target directly in the syntax (via a parameter)
The <Image> parameter is used to specify directly the target of the drawing. dStartDrawing becomes useless. This function must be deleted.
Versions 25 and later
This syntax is now available.
New in version 25
This syntax is now available.
This syntax is now available.
Method 2: indicating the drawing target directly in the syntax (via a parameter)
The <Image> parameter is used to specify directly the target of the drawing. dStartDrawing becomes useless. This function must be deleted.
Versions 25 and later
This syntax is now available.
New in version 25
This syntax is now available.
This syntax is now available.

Fonts

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

To get good results when angling the text drawn, the used must be a "True Type" font.

Business / UI classification : Neutral code

Component : wd250pnt.dll