ZoomTextButton Meta Tag

ZoomTextButton (META Tag) Syntax
<META HTTP-Equiv="ZoomTextButton" content="[parameter>

Items listed in this section indicate parameters, or attributes which can be set.

Name	Possible Values	Description	Default Value
Left:[Value]	Positive number, representing pixels	Sets the X position of the ZoomText button in pixels.	Bottom right of the screen
Top:[Value]	Positive number, representing pixels	Sets the Y position of the ZoomText button in pixels.	Bottom right of the screen
Height:[Value]	Positive number, representing pixels	Sets the height of the ZoomText button.	Dependant on screen resolution
Width:[Value]	Positive number, representing pixels	Sets the width of the ZoomText button.	Dependant on screen resolution
ImageUp:[Value]	URL	Sets the image to be displayed when the ZoomText Button is in the up state. See Remarks.	Default image
ImageDown:[Value]	URL	Sets the image to be displayed when the ZoomText Button is in the down state. See Remarks.	Default image
Visibility:[Value]	Visible, Hidden	Sets the visibility of the ZoomText button.	Hidden.

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META Tags

Javascript

<!-- The ZoomTextButton META Tag is an action tag used to set the parameters of the ZoomTextButton. When clicked the font size in the browser will cycle from smallest to largest. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="Left:[Value]"> --> <!-- Sets the X position of the ZoomText button in pixels. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="Top:[Value]"> --> <!-- Sets the Y position of the ZoomText button in pixels. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="Height:[Value]"> --> <!-- Sets the height of the ZoomText button. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="Width:[Value]"> --> <!-- Sets the width of the ZoomText button. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="ImageUp:[Value]"> --> <!-- Sets the image to be displayed when the ZoomText Button is in the up state. See Remarks. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="ImageDown:[Value]"> --> <!-- Sets the image to be displayed when the ZoomText Button is in the down state. See Remarks. --> <!-- <META HTTP-Equiv="ZoomTextButton" Content="Visibility:[Value]"> --> <!-- Sets the visibility of the ZoomText button. -->

<script> /* The ZoomTextButton META Tag is an action tag used to set the parameters of the ZoomTextButton. When clicked the font size in the browser will cycle from smallest to largest. */ function doZoomTextButtonInit() { var objGeneric = new ActiveXObject("PocketBrowser.Generic"); //objGeneric.InvokeMETAFunction('ZoomTextButton', 'Left:[Value]'); /* Sets the X position of the ZoomText button in pixels. */ //objGeneric.InvokeMETAFunction('ZoomTextButton', 'Top:[Value]'); /* Sets the Y position of the ZoomText button in pixels. */ //objGeneric.InvokeMETAFunction('ZoomTextButton', 'Height:[Value]'); /* Sets the height of the ZoomText button. */ //objGeneric.InvokeMETAFunction('ZoomTextButton', 'Width:[Value]'); /* Sets the width of the ZoomText button. */ //objGeneric.InvokeMETAFunction('ZoomTextButton', 'ImageUp:[Value]'); /* Sets the image to be displayed when the ZoomText Button is in the up state. See Remarks. */ //objGeneric.InvokeMETAFunction('ZoomTextButton', 'ImageDown:[Value]'); /* Sets the image to be displayed when the ZoomText Button is in the down state. See Remarks. */ //objGeneric.InvokeMETAFunction('ZoomTextButton', 'Visibility:[Value]'); /* Sets the visibility of the ZoomText button. */ } </script>

The following example shows the ZoomText button, sets its left and top coordinates to 50 pixels, and its height and width to 20 pixels.

<META HTTP-Equiv="ZoomTextButton" Content="Visibility:Visible"> <META HTTP-Equiv="ZoomTextButton" Content="Left:50"> <META HTTP-Equiv="ZoomTextButton" Content="Top:50"> <META HTTP-Equiv="ZoomTextButton" Content="Height:20"> <META HTTP-Equiv="ZoomTextButton" Content="Width:20">

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<!-- The following example shows the ZoomText button, sets its left and top coordinates to 50 pixels, and its height and width to 20 pixels. --> <META HTTP-Equiv="ZoomTextButton" Content="Visibility:Visible"> <META HTTP-Equiv="ZoomTextButton" Content="Left:50"> <META HTTP-Equiv="ZoomTextButton" Content="Top:50"> <META HTTP-Equiv="ZoomTextButton" Content="Height:20"> <META HTTP-Equiv="ZoomTextButton" Content="Width:20">

The follwing example shows the ZoomText button and displays the zoomText_up.gif / zoomText_down.gif images on it (reszing the images if necessary).

<META HTTP-Equiv="ZoomTextButton" Content="ImageUp:url('http://myaddress/zoomText_up.gif'); ImageDown:url('http://myaddress.zoomText_down.gif'); Visibility:Visible">

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<!-- The follwing example shows the ZoomText button and displays the zoomText_up.gif / zoomText_down.gif images on it (reszing the images if necessary). --> <META HTTP-Equiv="ZoomTextButton" Content="ImageUp:url('http://myaddress/zoomText_up.gif'); ImageDown:url('http://myaddress.zoomText_down.gif'); Visibility:Visible">

Use of Images on Buttons.

Images can be specified as local to the device or on an HTTP / FTP server, just specify the required protocol as part of your URL (file://\, HTTP:// and FTP://). Image will be scaled to the size of the button. JPEG and GIF images are only supported on WM devices. Both CE and WM support BMP files.

Switching to Other Applications

All controls are designed to be shown on top of PocketBrowser. If you require to switch to an application other than PocketBrowser you should minimize PB to ensure the buttons do not remain shown.

Screen Orientation

When the screen orientation changes, either using the ScreenOrientation tag or by rotating a device with hardware support, the command areas will automatically move and resize to fit the new layout. However the buttons themselves are not moved and in some cases this may result in them being off the screen or not in the expected position. If so they must be moved manually by detecting the ScreenOrientationEvent.

Supported Platforms	Windows CE, Windows Mobile
Persistence	This tag is persistent.
Min. Requirements	None.