On Thursday 25 September 2014 08:16:38 tea wrote: > > Среда, 24 сентября 2014, 15:41 +02:00 от Martin Schreiber > > <[email protected]>: > > > >> On the form of many tImage. > >> In timage1 ( bitmap.alignment.al_fit = true ) shows a scanned document . > >> timage2 must show a separate part of timage1. > >> How to do it ? > > > > Please use tsimplebitmap.copyarea(), <destbitmap>.canvas.copyarea() or > > tbitmap.paint(), tmaskedbitmap.paint() (recommended). > > Martin > > I can't :( (У меня не получается) > > My code: > … > tbitmapcomp1.Bitmap.LoadFromFile(AFileName, '', []); > timage2.bitmap.Canvas.CopyArea(tbitmapcomp1.Bitmap.Canvas, > makerect(10,10, 200, 100), > makepoint(0, 0)); > … > > Result: > Exception: Invalid pixmap. > " procedure tmainfo.NewLoad(const AFileName: msestring); const dbg_sh = 10; begin tbitmapcomp1.Bitmap.LoadFromFile(AFileName, '', []); timage2.bitmap.size:= timage2.paintsize; //paintsize excludes frame " If width or height of a tbitmap = 0 there will be no pixmap handle.
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