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  • Using the drawing functions
  • Fonts
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Stored procedures
Declares the font that will be used by dText:
  • in an Image control,
  • in a variable of type Image.
Example
// Initialize the drawing in an Image control
dStartDrawing(IMG_Drawing)
 
// Declare the character font:
// Arial, size 12, bold
dFont("Arial", 12, iBold)
Reports and Queries
// 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>, ] <Font> [, <Font size> [, <Font attributes> [, <Text inclination>]]])
<Image>: Optional control name or optional Image, WDPic or picLayer variable
Reports and QueriesWindows Image to use. The image can correspond to:
  • the name of an Image control.
  • the name of a variable of type Image.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
<Font>: 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.
<Font size>: Optional integer
Size of the font (in pixels). The default value is 12.
<Font attributes>: Optional constant (or combination of constants)
Font attributes to use:
iBoldAssigns the bold attribute to the text drawn.
iItalicAssigns the italic attribute to the text drawn.
iNormal
(Default value)
Normalizes the text drawn
iStrikeOutStrikes the text drawn.
iUnderlinedUnderlines the text drawn.
<Text inclination>: Optional integer
Specifies the inclination of the text (in degrees). The default value is 0.
Reports and Queries

Using a font created through programming Hide the details

dFont([<Image>, ] <Font used>)
<Image>: Optional control name or optional Image, WDPic or picLayer variable
Image to use. The image can correspond to:
  • the name of an Image control.
  • the name of a variable of type Image.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
<Font used>: Font
Font that will be used for the drawings. This parameter corresponds to a variable of type Font. The font characteristics have been defined by the FontCreate function or via the font properties.
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.
  • Reports and QueriesWindows 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.
Reports and QueriesWindows

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 <Font> used must be a "True Type" font.
Business / UI classification: Neutral code
Component: wd270pnt.dll
Minimum version required
  • Version 9
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