PGdkPixbuf to byte array

[mrdebug]

How can I save a PGdkPixbuf object into a byte array using fpc?
These functions:

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gdk_pixbuf_save_to_buffer
gdk_pixbuf_save_to_bufferv
gdk_pixbuf_save_to_callback
gdk_pixbuf_save_to_callbackvthere aren't in fpc.

[Marc]

have a look at gdk_pixbuf_get_pixels (and you may also need gdk_pixbuf_get_rowstride)

Or do you need more than pixels ?

[mrdebug]

I need a way to obtain an array to send at a client.

[Marc]

What is the difference between a pointer to a bunch of pixels and an array of pixels ?

[mrdebug]

When you execute the function to obtain the array of pixels you can select the format of the image in the array (I need jpeg compression.).
I have extended the gtk2pixbas.pas unit with this code:

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type AByteIn= array of byte;
type PAByteIn= ^AByteIn;

type TGdkPixbufSaveFunc= function(buffer:PChar; count:gsize; error:PPGError; AAByteIn:PAByteIn): gboolean; cdecl;
function gdk_pixbuf_save_to_callback(pixbuf:PGdkPixbuf; save_func:TGdkPixbufSaveFunc; data:gpointer; _type:Pchar; error:PPGError): gboolean; cdecl; external gdkpixbuflib;
The code works well but obtain an jpeg image requires some seconds.
With RGBGraphics libraries obtain a jpeg image requires 150 milliseconds.

Do you now a faster way?