By default, the LayerUpdate property property is exLayerUpdateControl, which indicates that the control's content is shown on the control itself ( no effect ). The LayerUpdate property indicates where the control's content is updated. The control support transparent form, or in other words, displaying the control's itself without its form behind. The AllowMoveOnClick property allows moving the window that contains the control to a new position, as you would do by clicking the form's title/caption. The LayerClipTo property specifies the index of the layer that clips the entire control to.

In order to make your eXGauge control to display a widget, ( no form behind or form transparent ), you need to use the following properties:

• Change the LayerUpdate property to exLayerUpdateScreeen, so the entire control is shown individually on the screen, with no form behind.

In order to make your eXGauge library to display a transparent-control inside your form/dialog/window/child, you need to use the following properties:

• Change the LayerUpdate property to exLayerUpdateParent, so the control itself ( with no nackground )  is shown on the form/dialog/parent.
• You need to add <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>, to your manifest file as follows. The transparent-eXGauge as a child of your form, it is supported on Windows 8, and later.

  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  <assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
  	<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"> 
  		<application> 
  			<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
  		</application> 
  	</compatibility>
  </assembly>

The control installs the

• C:\Program Files\Exontrol\ExGauge\Sample\VB\Widget or C:\Program Files\Exontrol\ExGauge\Sample\VC\Widget sample that shows how exLayerUpdateScreeenworks with LayerUpdate property. 
• C:\Program Files\Exontrol\ExGauge\Sample\VC\Widget-Child sample that shows how exLayerUpdateParent works with LayerUpdate property

The following screen shot shows the control on a transparent form (exLayerUpdateScreeen):

The following screen shot shows the transparent-control on form (exLayerUpdateParent ):