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  • Drawing functions, zoom and automatic scrollbars
  • How zoom works
  • Limitation
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Stored procedures
The Zoom property gets or sets the zoom value:
  • WINDEVAndroidAndroid Widget iPhone/iPadIOS Widget in an Image control. The management of automatic scrollbars and zoom must be enabled in this Image control ("Automatic scrollbars and zoom" in the "Details" tab of the control description window).
  • WINDEVWEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadPHP in a Map control.
  • WINDEV in an Organization Chart control.
  • WINDEV in a Table, TreeView Table, Pivot Table, Spreadsheet or List Box control.
  • WINDEV in a window.
  • WINDEV in a Word Processing control.
  • WINDEVAndroidiPhone/iPad in a PDF Reader control.
  • AndroidiPhone/iPad in a Camera control.
    Remark: This property can only be used on Camera controls that are not in "Version-26-compatible mode".
  • WINDEVWEBDEV - Server code in a Diagram Editor control.
Example
WINDEVAndroidAndroid Widget iPhone/iPadIOS Widget
// 40% zoom on the PDF file displayed in the Image control
IMG_Image_PDF.Zoom = 40
Syntax

Getting the zoom value Hide the details

<Result> = <Element used>.Zoom
<Result>: Integer
Zoom factor in the control. This value corresponds to:
  • WINDEVAndroidiPhone/iPadIOS Widget In an Image control: the zoom percentage.
  • WINDEV In an Organization Chart control: the zoom percentage.
  • WINDEV In a Table, TreeView Table, Pivot Table or Spreadsheet control: the zoom percentage.
  • WINDEVWEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadIOS WidgetPHP In a Map control: a value between 1 (view of the entire Earth) and 21.
  • WINDEV In a window: the zoom percentage.
  • WINDEV In a Word Processing control: the zoom percentage.
  • WINDEVAndroidiPhone/iPadIOS Widget In a PDF Reader control: the zoom percentage.
  • AndroidiPhone/iPad in a Camera control: to a value between the values of the MinZoom and MaxZoom properties.
  • WINDEVWEBDEV - Server code In a Diagram Editor control: the zoom percentage.
<Element used>: Control name or window name
Name of the element to be used:
  • WINDEVAndroidiPhone/iPadIOS Widget Name of the Image control.
  • WINDEV Name of the Organization Chart control.
  • WINDEVWEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadIOS WidgetPHP Name of the Map control.
  • WINDEV Name of the Table, TreeView Table, Pivot Table, Spreadsheet or List Box control.
  • WINDEV Name of the window.
  • WINDEV Name of the Word Processing control.
  • WINDEVAndroidiPhone/iPadIOS Widget Name of the PDF Reader control.
  • AndroidiPhone/iPad Name of the Camera control.
  • WINDEVWEBDEV - Server code Name of the Diagram Editor control.

Changing the zoom value Hide the details

<Element used>.Zoom = <New zoom>
<Element used>: Control name or window name
Name of the element to be used:
  • WINDEVAndroidiPhone/iPadIOS Widget Name of the Image control.
  • WINDEV Name of the Organization Chart control.
  • WINDEVWEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadIOS WidgetPHP Name of the Map control.
  • WINDEV Name of the Table, TreeView Table, Pivot Table, Spreadsheet or List Box control.
  • WINDEV Name of the window.
  • WINDEV Name of the Word Processing control.
  • WINDEVAndroidiPhone/iPadIOS Widget Name of the PDF Reader control.
  • AndroidiPhone/iPad Name of the Camera control.
  • WINDEVWEBDEV - Server code Name of the Diagram Editor control.
<New zoom>: Integer or Integer constant
New zoom value that will be applied to the element.
WINDEVAndroidiPhone/iPadIOS Widget For a PDF Reader control, this value can correspond to:
  • a percentage.
  • one of the following constants:
    zoomAdaptHeightDisplays the PDF file at full height in the PDF Reader control.
    zoomAdaptSizeDisplays the entire PDF file in the PDF Reader control.
    zoomAdaptWidthDisplays the PDF file at full width in the PDF Reader control.
Remark: the zoom value is lost when a new PDF file is loaded in the control.
WINDEVAndroidiPhone/iPadIOS Widget For an Image control, this value can correspond to:
  • a percentage.
  • one of the following constants:
    zoomAdaptHeightDisplays the image full height in the Image control.
    zoomAdaptSizeDisplays the entire image in the Image control.
    zoomAdaptWidthDisplays the image full width in the Image control.
Remark: the zoom value is lost when a new image is loaded in the control.
WINDEVWEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadIOS WidgetPHP For a Map control:
  • this value is between 1 (view of the entire Earth) and 21.
  • this value can correspond to the following constant:
    zoomAdaptSizeAdapts the zoom of the Map control to show all the markers at the same time.
WINDEV For an Organization Chart control, this value corresponds to a percentage.
WINDEV For a Table, TreeView Table, Pivot Table, Spreadsheet or List Box control: this value corresponds to a percentage.
WINDEV For a window, this value corresponds to a percentage.
WINDEV For a Word Processing control, this value corresponds to a percentage.
AndroidiPhone/iPad For a Camera control, this value is between the values of the MinZoom and MaxZoom properties.
WINDEVWEBDEV - Server code For a Diagram Editor control, this value corresponds to the zoom percentage.
Remarks
WINDEVReports and QueriesWindowsUser code (UMC)

Drawing functions, zoom and automatic scrollbars

The "Automatic scrollbars and zoom" option, available for Image controls, is not compatible with dStartDrawing. If this option is used on the Image control, dStartDrawing freezes the image in the control. The zoom is also fixed. The standard behavior is restored when dEndDrawing is called.
You can get the same effect with dPixelColor and dRotation.
AndroidiPhone/iPad

How zoom works

The Zoom property corresponds to a value between the values of the MinZoom and MaxZoom properties . This value corresponds to the magnification factor. For example, if the Zoom property is set to 2, it means that a '2x' zoom is applied.
  • If the value of the Zoom property is greater than that of the MaxZoom property, the zoom takes the value of MaxZoom.
  • If the value of the Zoom property is less than that of the MinZoom property, the zoom takes the value of MinZoom.

Limitation

This property applies only to:
  • Image controls with the "Automatic scrollbars and zoom" option.
  • WINDEVWEBDEV - Server codeWEBDEV - Browser codeUniversal Windows 10 AppAndroidiPhone/iPadIOS WidgetPHP Map controls.
  • WINDEV Organization Chart controls.
  • WINDEV Table, TreeView Table, Pivot Table, Spreadsheet or List Box controls.
  • WINDEV windows
  • WINDEV Word Processing controls.
  • WINDEVAndroidiPhone/iPadIOS Widget PDF Reader controls.
  • AndroidiPhone/iPad Camera controls.
Related Examples:
The Image control (display a PDF or a TIFF) 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.
The Map control Unit examples (WEBDEV): The Map control
[ + ] This example explains how to use the Map control of WEBDEV.
It can be used to display a map that includes markers as well as an itinerary.
The Map control Unit examples (WINDEV): The Map control
[ + ] Using the Map control of WINDEV.
It is used to display a map that includes markers as well as an itinerary.
Minimum version required
  • Version 12
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