Zoom

QNX Newsgroups (Archives) qnx.gui
1

Hi,

I’ve a complex draw composed by ellipses and lines.
I need to view in more detail a little part of the draw while continue
viewing the whole general draw.

I’m thinking in defining a rectangular area to be zoomed next to the
whole draw.
The zoomed area needs to be moved, but the dimensions and the zoom
factor will remain constants.

Has anybody experience in a similar application using PhAB?

Thanks

2

I’m trying to do the job using PgReadScreen function and PtImageArea
widget.
PgReadScreen seems to return a pointer to a PhImage_t structure. I’m not
sure that this structure contains the correct data because I doesn’t know
how to verify that point.
Then I set the Pt_ARG_IMAGEAREA_IMAGE resource of the PtAreaImage widget
with this image, but nothing changes in the screen.

There is no example in the PtImageArea widget.

I’m not sure I’m working in the good direction.
Any help/suggestion is appreciated.

Regards

Joan Baucells wrote:

Hi,

I’ve a complex draw composed by ellipses and lines.
I need to view in more detail a little part of the draw while continue
viewing the whole general draw.

I’m thinking in defining a rectangular area to be zoomed next to the
whole draw.
The zoomed area needs to be moved, but the dimensions and the zoom
factor will remain constants.

Has anybody experience in a similar application using PhAB?

Thanks