Write the window content in an image object.

dump_window_image writes the content of the graphics window (WindowHandle) in an image (Image). To transform gray values the current color table of the window is used, i.e., the values of set_lut_style remain unconsidered.

Under UNIX, the graphics window must be completely visible on the root window, because otherwise the contents of the window cannot be read due to limitations in X Windows.

If the window is valid dump_window_image returns 2 (H_MSG_TRUE). If necessary an exception handling is raised.

dump_window_image is reentrant, local, and processed without parallelization.

open_window, set_draw, set_color, set_colored, set_line_width, open_textwindow, disp_region

open_window, open_textwindow, set_system, dump_window

Foundation