Drawing in WINDEV, WEBDEV and WINDEV Mobile

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WINDEV, WEBDEV AND WINDEV MOBILE

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Drawing functions

Functions for handling graphic strings

Prefixed syntax

Types of variables

Drawing in WINDEV, WEBDEV and WINDEV Mobile

Overview

Prerequisite depending on the platform

How to draw?

Related examples

See also

Drawing in WINDEV, WEBDEV and WINDEV Mobile

Overview

WINDEV, WEBDEV and WINDEV Mobile include several functions for displaying, drawing, copying and saving the drawings and images from your applications or sites.

WINDEV, WEBDEV et WINDEV Mobile propose functions used to:

draw several drawings,
display any type of image,
copy the drawings and the images,
save drawings and images.

Versions 16 and later

Some drawing functions are now available in Android.

New in version 16

Some drawing functions are now available in Android.

Versions 18 and later

Some drawing functions are now available in Windows Store Apps mode.

New in version 18

Some drawing functions are now available in Windows Store Apps mode.

Prerequisite depending on the platform

How to draw?

Drawing in an Image control

To draw in an Image control:

Initialize the drawing in the Image control (dStartDrawing). This initialization is used to allocate a specific memory area for the management of drawings.
Draw with the drawing functions.
Insert (if necessary) text into your drawings with dText.
Perform (if necessary) zooms and copies of images with dCopyBlt.
If necessary, save the drawing using the save functions (dSaveImageBMP, dSaveImageGIF, dSaveImageJPEG, dSaveImagePNG).
If necessary, print the file using iPrintImage.
Destroy (if necessary) the drawing found in memory with dEndDrawing.

Versions 17 and later

Drawing in an Image variable

To draw in an Image variable, some rules must be complied with:

Declare an Image variable.
Initialize the drawing in the variable (dStartDrawing). This initialization is used to allocate a specific memory area for the management of drawings.
Draw with the drawing functions.
Insert (if necessary) text into your drawings with dText.
If necessary, save the drawing using the save functions (dSaveImageBMP, dSaveImageGIF, dSaveImageJPEG, dSaveImagePNG).
If necessary, print the file using iPrintImage.
Destroy (if necessary) the drawing found in memory with dEndDrawing.

New in version 17

Drawing in an Image variable

To draw in an Image variable, some rules must be complied with:

Declare an Image variable.
Initialize the drawing in the variable (dStartDrawing). This initialization is used to allocate a specific memory area for the management of drawings.
Draw with the drawing functions.
Insert (if necessary) text into your drawings with dText.
If necessary, save the drawing using the save functions (dSaveImageBMP, dSaveImageGIF, dSaveImageJPEG, dSaveImagePNG).
If necessary, print the file using iPrintImage.
Destroy (if necessary) the drawing found in memory with dEndDrawing.

Drawing in an Image variable

To draw in an Image variable, some rules must be complied with:

Declare an Image variable.
Initialize the drawing in the variable (dStartDrawing). This initialization is used to allocate a specific memory area for the management of drawings.
Draw with the drawing functions.
Insert (if necessary) text into your drawings with dText.
If necessary, save the drawing using the save functions (dSaveImageBMP, dSaveImageGIF, dSaveImageJPEG, dSaveImagePNG).
If necessary, print the file using iPrintImage.
Destroy (if necessary) the drawing found in memory with dEndDrawing.

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

Unit examples (WINDEV): Modifying the Hue, Saturation and Lightness

[ + ] Process on the images via the WLanguage dModifyHSL function.
This function is used to modify the hue, the saturation and the lightness of an image.

Training (WINDEV): WD Java Chart Designer

[ + ] WINDEV enables you to create some Java applications without even knowing Java.
You program with a 5GL (WLanguage) and WINDEV generates the Java code.
The drawing functions of WINDEV are available in Java generation.
This example explains how to create charts with these drawing functions.
Three types of charts are presented in this example:
- the bar chart,
- the scatter chart,
- and the line chart.

Cross-platform examples (WINDEV Mobile): WM Notes

[ + ] This example is using the drawing functions of WLanguage for Android and iOS.
It allows you to draw graphic "notes" and to save them.

Mobile (WINDEV Mobile): Pocket Notes

[ + ] This example is using the drawing functions of WLanguage.
Summary of the example supplied with WINDEV Mobile:
This example allows you to draw graphic "notes" and to save them. You have the ability to enter keywords in order to easily find your notes.

Training (WEBDEV): WW_Drawing_HTML5

[ + ] WEBDEV includes some drawing functions in browser code, for the browsers that support the HTML5. standard.
This educational example presents:
- an array of drawings,
- and an implementation: the visual choice by the Web user of the categories of seats when making a reservation for a show.

Unit examples (WEBDEV): The drawing functions

[ + ] This example presents the main drawing functions of WEBDEV and it allows you to:
- Initialize an Image control for drawing
- Draw simple shapes
- Write a text in a drawing
- Change the color in a drawing

Unit examples (WINDEV Mobile): The drawing functions

[ + ] Using the main drawing functions:
- Initialize an Image control for drawing
- Draw simple shapes
- Write a text into a drawing
- Define the color in a drawing