The window measurement tool allows you to measure the size of any window on the screen including its child windows. In addition, the window contents can be captured to the clipboard. The window being measured is identified by a red rectangular border. Both the data window attached to the window border and Meazure’s tool information section will display the window measurement information. Note that the position of the Window tool cannot be changed using the position text fields.

The tool information section displays the following measurements for the Window tool:

• X1, Y1 - The position of the upper left corner of the window
• X2, Y2 - The position of the lower right corner of the window
• W, H - The width and height of the window. W = |X2 - X1| + 1, H = |Y2 - Y1| + 1
• D - The length of the window diagonal. D = sqrt(W² + H²)
• A - The angle of the diagonal relative to the x-axis. Using the default coordinate system, positive angles are measured clockwise from the positive x-axis
• Ar - The area of the window. Ar = (W * H)

Note that the calculation of W, H, D and Ar is always performed in pixel units and the result is converted to the currently selected display units.

To capture the window contents to the clipboard, select the Copy Region item from the Edit menu or press Ctrl+R.

To select the Window tool choose the Window item on the Tools menu or click on the Window tool icon on the toolbar.