The GdkDrawable to draw in (usually a GdkWindow).
The graphics context.
The x coordinate of the top-left corner in the drawable.
The y coordinate of the top-left corner in the drawable.
The width of the rectangle to be drawn.
The height of the rectangle to be drawn.
A GdkRgbDither value, selecting the desired dither mode.
The pixel data, represented as 8-bit gray values.
The number of bytes from the start of one row in buf to the start of the next.
Warning gdk_draw_gray_image is deprecated and should not be used in newly-written code. Draws a grayscale image in the drawable.