Set the device context of a virtual graphics window (Windows NT).

::set_window_dc sets the device context of a window previously opened with ::new_extern_window. All output (::disp_region, ::disp_image, etc.) is done in the window with this device context.

The parameter WINHDC contains the device context of the window in which Halcon should output its data. This device context is used in all output routines of Halcon.

The window WindowHandle has to be created with ::new_extern_window beforehand.

set_system("pixel_ratio",1.53) ;
hWnd = createWINDOW(...) ;
new_extern_window(hwnd, hdc, 0,0,400,-1,WindowHandle) ;
set_device_context(WindowHandle, hdc) ;
read_image(&Image,"fabrik") ;
disp_image(Image,WindowHandle) ;
write_string(WindowHandle,"File: fabrik.ima") ;
new_line(WindowHandle) ;
get_mbutton(WindowHandle,_,_,_) ;
set_lut(WindowHandle,"temperature") ;
set_color(WindowHandle,"blue") ;
write_string(WindowHandle,"temperature") ;
new_line(WindowHandle) ; 
write_string(WindowHandle,"Draw Rectangle") ;
new_line(WindowHandle) ;
draw_rectangle1(WindowHandle,&Row1,&Column1,&Row2,&Column2) ;
set_part(Row1,Column1,Row2,Column2) ;
disp_image(Image,WindowHandle) ;
new_line(WindowHandle) ;

If the values of the specified parameters are correct, ::set_window_dc returns H_MSG_TRUE. If necessary, an exception is raised.

::new_extern_window

::disp_image, ::disp_region

::new_extern_window, ::disp_region, ::disp_image, ::disp_color, ::set_lut, ::query_color, ::set_color, ::set_rgb, ::set_hsi, ::set_pixel, ::set_gray, ::set_part, ::set_part_style, ::query_window_type, ::get_window_type, ::set_window_type, ::get_mposition, ::set_tposition, ::set_window_extents, ::get_window_extents, ::set_window_attr, ::set_check, ::set_system

System