1. A method implemented by a computing device, the method comprising: recognizing an input as involving selection of a portion of an application displayed in a display environment by the computing device and subsequent movement of a point of the selection toward a first edge of the display environment, the selected portion of the application positioned at a second edge of the display environment that is opposite the first edge, the display environment including a plurality of regions associated with different actions of the application, at least one of the regions defined by the first edge of the display device and involving closing of the application and defined by a dynamic threshold that is determined from the subsequent movement of the point of the selection toward the first edge of the display environment, the dynamic threshold defined as a percentage of the subsequent movement between the second and first edges of the display environment, at least another region other than the at least one of the regions configured such that moving the selected application into the another region causes the selection of the application not to be recognized; and responsive to the recognizing of the input, closing the selected application.