Translation by Nenad Vujic <nesa24casa@gmail.com>

This reduces the amount of flicker seen from redrawing the window.

This extra buffer only saves the result of the StretchBlt operatation,
which isn't worth doing since a BitBlt will still be needed from the buffer
to the screen. This causes noticable delay on resizing since a new sized
bitmap needs to be created, the old bitmap needs to be destroyed, and then
both a StretchBlt and a Bitblt is needed to actually repaint the window.

If there is a selection that doesn't span multiple paragraphs, then the
selection text initializes the find field in native wordpad, otherwise the
last search is used to initialize the field.  I added an extra buffer,
since closing the find dialog before doing a search will preserve the last
search state.