THORLABS DCU223x - Sample Programs

© 2013 Thorlabs GmbH204
DCx Cameras
Example OpenGL under Linux
//OpenGL initialize
OPENGL_DISPLAY display;
display.pDisplay = NULL;
display.nWindowID = 0 /* window id */
is_InitCamera(&hCam, (void*)&display);
Example under Linux (with usage of the Cairo library)
UINT Size[2] = { 480, 480 };
is_DirectRenderer (hCam, DR_SET_OVERLAY_SIZE, (void*)Size, sizeof (Size));
char *pOverlayBuffer;
is_DirectRenderer(hCam, DR_GET_OVERLAY_DATA, (void*)&pOverlayBuffer, sizeof(pOverlayBuffer));
cairo_surface_t *surface = 0;
cairo_t *cr = 0;
int w, h;
w = Size[0];
h = Size[1];
surface = cairo_image_surface_create_for_data(buffer, CAIRO_FORMAT_ARGB32, w, h, w * 4);
cr = cairo_create(surface);
cairo_set_line_width (cr, 6);
cairo_rectangle (cr, 12, 12, 232, 70);
cairo_new_sub_path (cr); cairo_arc (cr, 64, 64, 40, 0, 2* 3.14);
cairo_new_sub_path (cr); cairo_arc_negative (cr, 192, 64, 40, 0, -2*3.14);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_set_source_rgb (cr, 0, 0.7, 0); cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0, 0, 0); cairo_stroke (cr);
cairo_translate (cr, 0, 128);
cairo_rectangle (cr, 12, 12, 232, 70);
cairo_new_sub_path (cr); cairo_arc (cr, 64, 64, 40, 0, 2*3.14);
cairo_new_sub_path (cr); cairo_arc_negative (cr, 192, 64, 40, 0, -2*3.14);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
cairo_set_source_rgb (cr, 0, 0, 0.9); cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0, 0, 0); cairo_stroke (cr);
cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD );
cairo_set_font_size (cr, 90.0);
cairo_move_to (cr, 10.0, 135.0);
cairo_show_text (cr, "Hello");
cairo_move_to (cr, 70.0, 165.0);
cairo_set_font_size (cr, 150.0);
cairo_text_path (cr, "uc480");
cairo_set_source_rgb (cr, 0.5, 0.5, 1);
cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_set_line_width (cr, 2.56);
cairo_stroke (cr);
/* draw helping lines */
cairo_set_source_rgba (cr, 1, 0.2, 0.2, 0.6);
cairo_arc (cr, 10.0, 135.0, 5.12, 0, 2*3.14);
cairo_close_path (cr);
cairo_arc (cr, 70.0, 165.0, 5.12, 0, 2*3.14);
cairo_fill (cr);
cairo_destroy (cr);
cairo_surface_destroy (surface);
// update overlay
is_DirectRenderer(hCam, DR_UPDATE_OVERLAY_DATA, NULL, 0);
Sample programs
uc480DirectRenderer
uc480Steal