gdkDrawRgbImage(object, gc, x, y, width, height, dith, rgb.buf, rowstride)objectGdkDrawable to draw in (usually a GdkWindow).gcxywidthheightdithGdkRgbDither value, selecting the desired dither mode.rgb.bufrowstridergb.buf to the
start of the next.rowstride parameter allows for lines to be aligned more flexibly.
For example, lines may be allocated to begin on 32-bit boundaries,
even if the width of the rectangle is odd. Rowstride is also useful
when drawing a subrectangle of a larger image in memory. Finally, to
replicate the same line a number of times, the trick of setting
rowstride to 0 is allowed.
In general, for 0 <= i="" <="" j *
rowstride + i * 3], green value rgb.buf[j * rowstride + i * 3 +
1], and blue value rgb.buf[j * rowstride + i * 3 + 2].