Function
Gdkpixbuf_get_from_surface
Declaration [src]
GdkPixbuf*
gdk_pixbuf_get_from_surface (
cairo_surface_t* surface,
int src_x,
int src_y,
int width,
int height
)
Description [src]
Transfers image data from a cairo_surface_t and converts it
to a GdkPixbuf.
This allows you to efficiently read individual pixels from cairo surfaces.
This function will create an RGB pixbuf with 8 bits per channel.
The pixbuf will contain an alpha channel if the surface contains one.
Parameters
surface |
cairo_surface_t |
Surface to copy from. |
|
| The data is owned by the caller of the function. | |
src_x |
int |
Source X coordinate within |
|
src_y |
int |
Source Y coordinate within |
|
width |
int |
Width in pixels of region to get. |
|
height |
int |
Height in pixels of region to get. |
Return value
| Returns: | GdkPixbuf |
A newly-created pixbuf with a reference count of 1 |
|
| The caller of the function takes ownership of the data, and is responsible for freeing it. | |
The return value can be NULL. |