Представьте, что вы имеете такой фон...
(фотография любезностью Philip Greenspun)
и вы хотели бы получить нашу любимую козявку, прохлаждающуюся в воде...
Попробуйте этот код:
DIM mypic AS Picture
DIM bg AS Picture
' We've already created a DrawingArea called "dr" on the form.
' Load the background.
bg = Picture["barcelona-aquarium.jpg"]
' Load the transparent picture.
mypic = Picture["gambas7.png"]
' Turn on caching for the drawing area.
'
' While it wasn't documented till recently, caching is really
' helpful because it lets the drawing area handle its own
' redrawing automatically. Otherwise it gets erased whenever
' something else obscures it, and in this case, since we're
' drawing before the form gets shown, it never would be drawn
' at all unless we cached it.
'
' You can also set caching in the Properties dialog,
' but I wanted to explain it here.
dr.cached = TRUE
' Go into drawing mode on our DrawingArea.
Draw.begin(dr)
' Place the background in the upper left hand corner.
' (You'd want the drawing area to be the same size
' as your background.)
Draw.picture(bg,0,0)
' Finally, draw our buddy the shrimp...
Draw.picture(mypic,40,180)
' ...and leave drawing mode.
Draw.end
Вот, что случится:
А здесь finished project.
Attachment: | Action: | Size: | Date: | Who: | Comment: |
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action | 22326 | 16 Jan 2004 - 17:09 | RobKudla | |
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action | 9986 | 16 Jan 2004 - 17:09 | RobKudla | |
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action | 66491 | 16 Jan 2004 - 17:11 | RobKudla | |
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action | 137049 | 16 Jan 2004 - 17:15 | RobKudla |