Re: The Code of the Clip Mask Offset Problem

[Arndt Schwaiger <arsc0001 stud uni-sb de>]

Hi Owen,

thanx for your mail, but I know that this is the problem.
I dont know how to code the same offset for my mask.
There is no "gdk_set_clip_mask_offset" .
How can I do this job, this is my problem.
I think, its no good, that the gdk_library uses not the same offset to the mask.

Regards,
Arndt

>Well, I guess the problem with your code can be expressed by saying
>that the clip mask origin applies to the destination not the
>source. So as you draw different portions of the source onto the same
>portion of destination, you need to offset the clip mask origin
>appropriately. (Generally by the negative of the xsrc/ysrc you
>are using as offsets into your source image.)
>
>You might want to try drawing the situation on a piece of
>paper.

>Regards,
>Owen