PageNumber (Property)

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Help / WLanguage / WLanguage properties / Properties associated with windows, pages and controls

Modifying the page displayed in an Image control
Changing the page of the PDF file displayed in the background of a report
Number of pages found in a "multi-page" file
Drawing in an Image control associated with a "multi-page" image
Limitations

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See also

PageNumber (Property)

In french: NuméroPage

The property PageNumber property allows you to:

get and change the number of the page displayed in an Image control ("multi-page" image files).
get and change the page number of a PDF file displayed in an Image control of a window.
get and change the page number of a PDF file displayed in the background of a report.

Reminder Some image formats (such as TIFF) can contain several images in a single file. Each image corresponds to a file page. These formats are called "multi-page" formats.

Note: To find out and modify the page number displayed in a Word Processing control or a PDF Reader control, use the NumberDisplayedPage property.

Example

// Variables
i is int
// Modification du fichier image associé au champ "IMG_MonImage" dans une fenêtre
IMG_MonImage = "FichierMultipage.TIF"
// Affichage successif des différentes pages présentes dans le fichier image
FOR i = 1 TO IMG_MonImage.NombrePage
	IMG_MonImage.NuméroPage = i
	// Temporisation du changement des images
	Multitask(-100)
END

Syntax

Identifying the number of the displayed page Hide the details

<Page number> = <Element used>.PageNumber

<Page number>: Integer

Number of the page currently displayed in the specified Image control or in the background of the specified report.
1 if the format of image file is not "multi-page" or if the first page of "multi-page" file is displayed.
0 if the specified control or report is not associated with a supported image format.

<Element used>: Control or report name

Name of the Image control or report to be used.

Changing the number of the displayed page Hide the details

<Element used>.PageNumber = <Page number>

<Element used>: Control or report name

Name of Image control or report to use.

<Page number>: Integer

Number of the page that will be displayed in the specified Image control or in the background of the specified report.

Remarks

Modifying the page displayed in an Image control

When an image or PDF file is associated with a control (from the window editor, via the Image property, etc.), the image displayed by default corresponds to the first page of the "multi-page" file.

To change the page displayed in the Image control, simply use the PageNumber property.

Attention The property PageNumber property only applies to the image file currently associated with the Image control field.

Changing the page of the PDF file displayed in the background of a report

If a PDF file is used as report form, you have the ability to choose (in the report description) the page of the PDF file that will be displayed ("Background" tab, "# of PDF page" option). To programmatically change the page displayed in the background of the report, simply use the PageNumber property.

Attention: The PageNumber property only applies to the image file currently used as the report form.

Number of pages found in a "multi-page" file

To get the number of pages in a "multi-page" image file, use the NumberPage property.

Drawing in an Image control associated with a "multi-page" image

If a drawing (made with drawing functions) is made in the Image control, this drawing will be automatically deleted when the page displayed with the PageNumber property is modified.

This drawing must be re-drawn whenever the page displayed in the image control is modified. To re-draw this drawing, we recommend that you use a procedure.

Limitations

The property applies only to:

Image controls in windows.
reports.

Related Examples:

Unit examples (WINDEV): The Image control (display a PDF or a TIFF)

[ + ] Displaying a PDF or TIFF document in the Image control found in a window.