On Monday, 4 January 2016 at 19:27:48 UTC, Mike Wey wrote:
I think you are looking for something like this.
Context.getTarget will get you the surface the Context is
drawing to, this most likely isn't a ImageSurface.
So you will need to create an pixbuf from the returned surface,
with the Pixbuf you can then get the raw pixel data using
getPixelsWithLength().
```
import gdk.Pixbuf;
bool drawCallback(Scoped!Context cr, Widget widget)
{
GtkAllocation size;
Pixbuf surafce;
getAllocation(size);
//Draw something;
surface = getFromSurface(cr.getTarget(), 0, 0, size.width,
size.height);
ubyte[] data = cast(ubyte[])surface.getPixelsWithLength();
//Do somthing with data.
return true;
}
```
getPixelsWithLength has the wrong return type, which will
probably be fixed some time.
Thank you very much! But surface.getPixelsWithLength() only gives
me an array with 16 fields (with a 256x256 DrawingArea)?
I also tried to save the Pixbuf with:
string[] options = ["quality"];
string[] opval = ["100"];
surface.savev("C:\\Users\\Standardbenutzer\\Desktop\test.jpeg",
"jpeg", options, opval);
but i found absolutely NOTHING about the options or the option
values i have to set, therefore i get an invalid argument
exception :(
