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  • Coordinates
  • Non-solid figure
  • Drawing with opacity or anti-aliasing
  • Using the drawing functions
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadIOS WidgetApple WatchMac CatalystUniversal Windows 10 App
Others
Stored procedures
Draws a circle section or an ellipse section:
  • in an Image control,
  • in an Image variable.
  • Versions 25 and later
    WINDEV in a WDPic variable (on the background layer),
    New in version 25
    WINDEV in a WDPic variable (on the background layer),
    WINDEV in a WDPic variable (on the background layer),
  • Versions 25 and later
    WINDEV in a picLayer variable.
    New in version 25
    WINDEV in a picLayer variable.
    WINDEV in a picLayer variable.
Versions 15 and later
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.
New in version 15
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
// Initialise le dessin dans un champ Image
dStartDrawing(IMG_Dessin)
 
// Dessin d'une portion de cercle dont le
// fond est jaune clair et le bord bleu clair
dSlice(10, 10, 50, 50, 20, 20, 40, 50, LightYellow, LightBlue)
Versions 24 and later
WINDEVUniversal Windows 10 AppUser code (UMC)
// Dessin d'une portion de cercle dont le
// fond est jaune clair et le bord bleu clair
dSlice(IMG_Dessin, 10, 10, 50, 50, 20, 20, 40, 50, LightYellow, LightBlue)
New in version 24
WINDEVUniversal Windows 10 AppUser code (UMC)
// Dessin d'une portion de cercle dont le
// fond est jaune clair et le bord bleu clair
dSlice(IMG_Dessin, 10, 10, 50, 50, 20, 20, 40, 50, LightYellow, LightBlue)
WINDEVUniversal Windows 10 AppUser code (UMC)
// Dessin d'une portion de cercle dont le
// fond est jaune clair et le bord bleu clair
dSlice(IMG_Dessin, 10, 10, 50, 50, 20, 20, 40, 50, LightYellow, LightBlue)
Syntax
dSlice([<Image>, ] <X1> , <Y1> , <X2> , <Y2> , <X3> , <Y3> , <X4> , <Y4> [, <Background color> [, <Line color>]])
<Image>: Optional control name or optional Image, WDPic or picLayer variable
Versions 24 and later
WindowsLinuxUniversal Windows 10 AppJavaUser code (UMC) Image to use. This image can correspond to:
  • the name of an Image control.
  • the name of a variable of type Image.
  • Versions 25 and later
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
    New in version 25
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
  • Versions 25 and later
    WINDEV the name of a variable of type picLayer.
    New in version 25
    WINDEV the name of a variable of type picLayer.
    WINDEV the name of a variable of type picLayer.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
New in version 24
WindowsLinuxUniversal Windows 10 AppJavaUser code (UMC) Image to use. This image can correspond to:
  • the name of an Image control.
  • the name of a variable of type Image.
  • Versions 25 and later
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
    New in version 25
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
  • Versions 25 and later
    WINDEV the name of a variable of type picLayer.
    New in version 25
    WINDEV the name of a variable of type picLayer.
    WINDEV the name of a variable of type picLayer.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
WindowsLinuxUniversal Windows 10 AppJavaUser code (UMC) Image to use. This image can correspond to:
  • the name of an Image control.
  • the name of a variable of type Image.
  • Versions 25 and later
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
    New in version 25
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
    WINDEV the name of a variable of type WDPic. Only the background layer will be handled.
  • Versions 25 and later
    WINDEV the name of a variable of type picLayer.
    New in version 25
    WINDEV the name of a variable of type picLayer.
    WINDEV the name of a variable of type picLayer.
If this parameter is not specified, it is necessary to define the drawing destination with dStartDrawing.
<X1>: entier
X-coordinate of top left corner of the rectangle containing the circle. These coordinates are expressed in pixels.
<Y1>: entier
Y-coordinate of top left corner of the rectangle containing the circle. These coordinates are expressed in pixels.
<X2>: entier
X-coordinate of bottom right corner of the rectangle containing the circle. These coordinates are expressed in pixels.
<Y2>: entier
Y-coordinate of bottom right corner of the rectangle containing the circle. These coordinates are expressed in pixels.
<X3>: entier
X-coordinate of start point of the circle section. These coordinates are expressed in pixels.
<Y3>: entier
Y-coordinate of start point of the circle section. These coordinates are expressed in pixels.
<X4>: entier
X-coordinate of end point of the circle section. These coordinates are expressed in pixels.
<Y4>: entier
Y-coordinate of end point of the circle section. These coordinates are expressed in pixels.
<Background color>: Integer or constant (optional)
Background color of circle section. This color can correspond to:
If this parameter is not specified, the background color:
  • is Transparent if function dBackground has not been used before,
  • corresponds to the Color specified in the last call to function dBackground.
<Line color>: Integer or constant (optional)
Color of the line for the circle section. This color can correspond to:
If this parameter is not specified, the line color:
  • corresponds to the color specified in the last call to dPen,
  • is identical to the Color used for the Background if the dPen function has not been used..
Remarks

Coordinates

If the start point and the end point are not located on the border of the circle (or on the border of the ellipse), the point taken into account corresponds to the intersection between the circle and the line that joins the specified point and the center of the rectangle (which means the center of the circle).
The coordinates are given in relation to the top left corner of the image or Image control ((0, 0) coordinates).
The drawing sections are drawn anticlockwise.

Non-solid figure

To draw a non-solid figure (without taking into account the center of the circle), use dChord.
WINDEVWindowsJavaUser code (UMC)

Drawing with opacity or anti-aliasing

When drawing with opacity (dStartDrawing with the dWithOpacity constant) or with anti-aliasing (dChangeMode with the drawAntiAliasing constant), the border is drawn above the inside of the section: therefore, the line is partly combined with the inside of the section. If the line is very thick, it will be displayed in two colors.

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
    WindowsLinuxUniversal Windows 10 AppJavaUser code (UMC) 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. The dStartDrawing function becomes unnecessary. This function must be deleted.
    Versions 25 and later
    Java This syntax is now available.
    New in version 25
    Java This syntax is now available.
    Java This syntax is now available.
    New in version 24
    WindowsLinuxUniversal Windows 10 AppJavaUser code (UMC) 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. The dStartDrawing function becomes unnecessary. This function must be deleted.
    Versions 25 and later
    Java This syntax is now available.
    New in version 25
    Java This syntax is now available.
    Java This syntax is now available.
    WindowsLinuxUniversal Windows 10 AppJavaUser code (UMC) 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. The dStartDrawing function becomes unnecessary. This function must be deleted.
    Versions 25 and later
    Java This syntax is now available.
    New in version 25
    Java This syntax is now available.
    Java This syntax is now available.
Related Examples:
The drawing functions Unit examples (WINDEV): The drawing functions
[ + ] Using the main drawing functions of WINDEV to:
- Initialize an Image control for drawing
- Draw simple shapes
- Write a text into a drawing
- Change the color in a drawing
Business / UI classification: Neutral code
Component: wd270pnt.dll
Minimum version required
  • Version 9
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