Handling an Image control by programming

WINDEV, WEBDEV AND WINDEV MOBILE
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Image control

Handling an Image control by programming

Overview

Displaying an image file in an Image control

Retrieving the name of the image file displayed in the Image control

Retrieving the position of the mouse in a clickable image

Clearing or reinitializing the content of an Image control

Properties specific to the Image controls

See also

"Clickable" image in a window

AAF: Popup menu of Image controls

Animating an image

Animating the image display (WEBDEV)

Choosing the type of image: dynamic, static, generated, ...

Directory of images (WEBDEV)

Display modes, transparency and symmetry of an image

Drawing charts in an Image control

Events associated with Image controls

Handling an Image control by programming

Image control in a page

Image control in a window

Image control linked to an item

Image control: the supported formats

Image with automatic scroll (WEBDEV)

Managing the multi-touch

Properties associated with an Image control

Providing an image per DPI

The Image control

Zooming an image (WEBDEV)

Overview
Displaying an image file in an Image control
In a page
Retrieving the name of the image file displayed in the Image control
In a page
Retrieving the position of the mouse in a clickable image
Clearing or reinitializing the content of an Image control
Properties specific to the Image controls

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

The Image control

Handling an Image control by programming

Overview

WINDEV, WEBDEV and WINDEV Mobile allow you to handle an Image control by programming. To do so, use the variable of the Image control in the code.

The variable of Image control corresponds to the name of Image control. This variable is a text variable.

Displaying an image file in an Image control

In a page

To display an image file in an Image control, a simple assignment is sufficient.

If the image is available in the "<ProjectName>_WEB", directory, you have the ability to use the following syntaxes:

Server code:

<Image control> = <Image name>

Remark: In server code, if the image is available in a directory other than "<ProjectName>_WEB", you must:
- specify the full path of image.
- have read rights in this directory.

Retrieving the name of the image file displayed in the Image control

In a page

To retrieve the name of the image displayed in an Image control:

perform a simple assignment. For example:

EDT_CurrentImageContent = IMG_Image1
use ..Value.
use ..Caption (server code only).

In server code, these syntaxes are used to retrieve the image name defined in the "General" tab of control.

Example: ./background.gif

Remark: To retrieve the image (or its name) in the item associated with the Image control,

If the control is associated with a text item, the value entered is automatically retrieved via PageToFile. You also have the ability to use the following notation: CUSTOMER.NAME = EDT_Edit1.
If the control is associated with a binary memo, use HLinkMemo to associate the image file with the item.
See Linking an Image control to an item for more details.

Retrieving the position of the mouse in a clickable image

Clearing or reinitializing the content of an Image control

To clear or reinitialize an Image control, all you have to do is assign an empty string to the Image control. For example:

IMG_MyImage = ""

Remark: You also have the ability to use dStartDrawing/dEndDrawing on the Image control.

Properties specific to the Image controls