Hello. I have some difficulties with manipulation of pixels in the
GdkPixbuf data buffer. I use the following loop to iterate thought
each pixel:
-----------------------------------
n_channels = gdk_pixbuf_get_n_channels(pixbuf);
guchar *pixel;
guchar *data = gdk_pixbuf_get_pixels(pixbuf);
for (i = 0; i < width*height; i++) {
pixel = buffer + i * n_channels;
pixel[0] = 100; /* Red channel */
pixel[1] = 100; /* Green channel */
pixel[2] = 100; /* Blue channel */
pixel[3] = 100; /* Alpha channel */
}
-----------------------------------
Is this the right way to handle a RGBA buffer?
Greets,
Luka
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