Hi!
The following code should permitt to move a big picture (eg: 20 000 x 20 000 and 10 MO ) by drag and drop or with arrows of the keyboard, to zoom in and zoom out whith wheel of the mouse. there are some problems:
_arrows zoom ! 8-| instead of move the picture (what I have made wrong?)
_when dragging and droping we can see that picture is cut: we can't see the whole image, but only the part of the picture initially present on the main Frame, others parts are white
_the zoom with the mouse enlarge the high left corner of the picture... :-(
_I've try to place some panels, but they don't appear on the Frame: there is only the picture...
If somebody can help me...
thanks