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Signature capture resizing on orientation change

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    Signature capture resizing on orientation change

    The signature control allows explicit height and width sizing (eg pixels) rather than percentages. So if I size it to look good on a phone in portrait mode, it doesn't resize when the device orientation is changed to landscape.

    Is there an way to auto resize a signature control so it fills the available horizontal space on orientation change?

    Thanks.

    #2
    Re: Signature capture resizing on orientation change

    From my dealings with this in the past (there may have been an update to it, and I haven't tested it in a while) you had to programatically do this through javascript and then repaint the object - but it did work. The other issue is that if there was already a signature, it didn't resize. I know there was discussion on this and I thought they were going to address it. Maybe David or someone else can provide more detail....

    For our apps, we now size the signature to be the same on the various device sizes and orientations.

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      #3
      Re: Signature capture resizing on orientation change

      The Signature Capture control is a bit of a dinosaur... as it is a fixed size, no "fill container", control. It doesn't make sense, but there you go. You can use the PanelCard onSize event to get orientation and screen size... and then adjust 2 areas of the Canvas of the control. However, when you examine the rendered control, Alpha isn't going to make it easy as they employ a div without an id. Still, it can be done.

      Would you rather use the Ink Control... and configure it for a Signature? It does have a "Fill container" property and may be more suitable for a mobile app. Plus... the Ink control uses Alpha's proprietary alphanumeric ink string... instead of the much larger Signature Capture Control image format.

      You use the Ink Control Genie to select a "Signature" layout. Of course, if you're using the "Alpha" theme... then the Ink Control Genie is broken and has been since build 5581 - January 11, 2019... so there's that (shaking my head... no QC, no testing). But, if you can get Alpha to fix it, or you're using a release prior to 5581, or you're using a different theme, then you're ok.

      Ink_Control_Genie.PNG

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