UpperLeftX
UpperLeftY

The special variables UpperLeftX and UpperLeftY specify the distance, in pixels, from the top-left of the display for the next-opened window.  For example, the following code will open a graphics window whose upper left corner is located 50 pixels from the left of the display, and 25 pixels from the top of the display:

    UpperLeftX = 50
    UpperLeftY = 25

WindowWidth
WindowHeight

The special variables WindowWidth and WindowHeight specify the width and height of the next window to be opened.  If the program's code does not specify the values for these special variables, their defaults will be 320 and 360 respectively.  After a resize event that is trapped by the resizehandler command, these variables contain the width and height of the client area of the window.  the client area is the workspace of the window that is contained within the sizing frame, border or titlebar.  See resize.bas for an example of this usage.

    WindowWidth = 250
    WindowHeight = 100
