Wallpaper - %wp[bitmap]
%wp takes the name of a bitmap resource. bitmap is a standard character
string. %wp "wallpapers" the window with the bitmap before the text and
controls are drawn.
i=winio@('%bg[grey]%fn[Times New Roman]&')
where the resource script chitz.rc contains:
chitz BITMAP c:\windows\chitz.bmp
%wp is most effective in windows that contain only graphical objects. If the
bitmap is smaller than the dimensions of the window, it will be repeated
horizontally and vertically to fill the space. Therefore, your bitmap should
either be sufficiently large, or it should contain a pattern that is designed
to repeat, like the standard Windows wallpaper bitmaps. A grave accent (`) is
added to %wp in order to ensure that the window will be expanded to hold at
least one copy of the bitmap.