PointerPoint如何重新计算位置

Question

void PointerPressed(object sender, PointerRoutedEventArgs e) 
{ 
Windows.UI.Input.PointerPoint pointerPoint = e.GetCurrentPoint(panelcanvas); 

这个时候panelcanvas放大了,如何把已获得的pointerPoint对应panelcanvas也做相应的放大.

Answer 1

Hi,

你可以通过TranformToVisual()方法，得到这个点到Canvas左上角的距离，处以你得到的距离，就是放大的倍数，之后可以用这个数据乘以你需要放大的坐标。

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Aaron
MSDN Community Support | Feedback to us
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Answer 2

得到坐标point是没有问题，我是想得到PointerPoint这个对象，这个对象里面的属性都是只读的

Answer 3

Hi,

你只能够通过GetCurrentPoint来得到坐标，而Pointer对象的引用我想是没有办法可以得到的。不过你为什么需要这个引用？我们可以用一些其他的替代方法。

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Aaron
MSDN Community Support | Feedback to us
Develop and promote your apps in Windows Store
Please remember to mark the replies as answers if they help and unmark them if they provide no help.