VOVERLAY User Manual
Page 13
Version 1.2.1.0
7.2.5
Window
Overlay Item
Window Overlay Item
allows any window on the desktop top to be displayed at video output ports, in front of
the incoming video or by itself. This is useful to create a “Video in Video” result on TV, or display a live
animation to external TV, etc.
The window selection is through a window’s handle, or its class name, title, or its root window’s class name and
title. Pressing the “
Get A Window Handle
” button
once, then move the mouse cursor(now
changed to I-Beam shape) to any window and single click that window, that clicked window’s handle, class name,
title and root window’s class name, title values will be copied into the corresponding fields on the
Setup Overlay
Window:
.
Clicking the “
Client Area O
nly” checkbox means only displaying the selected window client area’s contents.
Clicking the “
Erase on Exit
” checkbox means the window’s display will be cleared when the display duration
expires or the display is manually stopped.
The “
Pause Time
” means how long the executing thread will pause in between displaying consecutive frames of
the selected window. For a live video/animation displaying window, set this time to 40~80 mille-seconds will give
good smooth moving result on the output video ports.
Click the “
Window Content Static
” if the content of the window is not changing constantly
.
Click the “
Transparent
” check box and select a colour from the “
Transparency Colour
” button initiated
colour dialog, if you wish to make some portion of the window transparent (invisible), e.g. making the blue
background to disappear on the live video.
Click the “
Clear Old Overlay Value
” to make the “
Transparency
” effect clean without shivering pixels
flying around. This box has the same significance as explained in the “
Graphics File Overlay Item
” section,
and it is only meaningful when the “
Transparent
” box is ticked.
