<Image variable>.DrawPoint (Function)

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<Image variable>.DrawPoint (Function)

In french: <Variable Image>.DessinePoint

Draws a point in an Variable type Image.

Versions 25 and later

This function is now available for Java applications.

New in version 25

This function is now available for Java applications.

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. For more details, see The drawings.

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. For more details, see The drawings.

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.

Versions 24 and later

The syntax that uses the Point variables is now available for Java applications.

New in version 24

The syntax that uses the Point variables is now available for Java applications.

Example

MyImage is Image = "Test.gif"
// Draw a light yellow point in an Image variable
MyImage.DrawPoint(10, 50, LightYellow)
IMG_MyDrawing = MyImage

Syntax

Drawing a point by specifying its coordinates Hide the details

<Image variable>.DrawPoint(<X coordinate> , <Y coordinate> [, <Point color> [, <Opacity>]])

<Image variable>: Image variable

Name of the Image variable to use.

<X coordinate>: Integer

Horizontal position (in pixels) of the point to draw.

<Y coordinate>: Integer

Vertical position (in pixels) of the point to draw.

<Point color>: Integer or constant (optional)

Color that must be assigned to the point. This color can correspond to:
an RGB color (returned by RGB),
an HSL color (returned by HSL),
une preset color of WLanguage.
If this parameter is not specified, the color of the point:
is Transparent if function <Image variable>.Pen has not been used before,
corresponds to the Color specified in the last call to function <Image variable>.Pen.

<Opacity>: Optional integer

Opacity of color, included between 0 (transparent) and 255 (opaque). An opacity sets to 128 indicates that the relevant pixel will have a transparency of 50% when it is drawn on the screen or saved in an image in PNG format.
Remark: This opacity will be taken into account if the drawing found in the image was initialized by the dWithOpacity constant (<Image variable>.StartDrawing).

Drawing a point via a Point variable Hide the details

<Image variable>.DrawPoint(<Point> [, <Point color> [, <Opacity>]])

<Image variable>: Image variable

Name of the Image variable to use.

<Point>: Point variable

Name of the Point variable containing the coordinates of the point to draw.

<Point color>: Integer or constant (optional)

Color that must be assigned to the point. This color can correspond to:
an RGB color (returned by RGB),
an HSL color (returned by HSL),
a preset color of WLanguage.
If this parameter is not specified, the color of the point:
is Transparent if function <Image variable>.Pen has not been used before,
corresponds to the Color specified in the last call to function <Image variable>.Pen.

<Opacity>: Optional integer

Opacity of color, included between 0 (transparent) and 255 (opaque). An opacity sets to 128 indicates that the relevant pixel will have a transparency of 50% when it is drawn on the screen or saved in an image in PNG format.
Remark: This opacity will be taken into account if the drawing found in the image was initialized by the dWithOpacity constant (<Image variable>.StartDrawing).

Remarks

Coordinates

Coordinates are given with respect to the top left corner of the image (coordinates: (0.0)).

Related Examples:

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: wd260pnt.dll