static int
FindPixel (ScaleWidget sw, short x, short y,
short * img_x, short * img_y, unsigned long * img_pixel)
{
if (sw->scale.table.x[(int) *img_x] +
(short) sw->scale.table.width[(int) *img_x] < x)
{
++*img_x;
return FindPixel (sw, x, y, img_x, img_y, img_pixel);
}
}
void FindPixel (char *windowName, int x, int y, Display *display, Window rootWindow)
{
Window parent;
Window *children;
Window *child;
XImage *image;
XWindowAttributes winAttr;
XColor color;
XTextProperty wmName;
unsigned int noOfChildren;
unsigned long pixel;
int status;
int i, red, green, blue;
char **list;
status = XGetWMName (display, rootWindow, &wmName);
if ((status) && (wmName.value) && (wmName.nitems)) {
if (strcmp(windowName, wmName.value) == 0) {
XGetWindowAttributes(display, rootWindow, &winAttr);
image = XGetImage(display, rootWindow, 0, 0, winAttr.width, winAttr.height, XAllPlanes(), ZPixmap);
color.pixel = XGetPixel(image, x, y);
XQueryColor(display, XDefaultColormap(display, XDefaultScreen(display)), &color);
red = floor(color.red * 0.003891051);
green = floor(color.green * 0.003891051);
blue = floor(color.blue * 0.003891051);
printf("%i %i %i\n", red, green, blue);
}
}
status = XQueryTree (display, rootWindow, &rootWindow, &parent, &children, &noOfChildren);
for (i=0; i < noOfChildren; i++) {
FindPixel (windowName, x, y, display, children[i]);
}
XFree ((char*) children);
}
int main(int argc, char *argv[])
{
if (argc != 4) {
printf("Usage: %s \"Window Name\" <x> <y>\n", argv[0]);
exit(0);
}
// CONNECT TO THE XSERVER
Display *display;
int depth;
int screen;
int connection;
char *windowName = argv[1];
int x = atoi(argv[2]);
int y = atoi(argv[3]);
Window window;
display = XOpenDisplay (NULL);
screen = DefaultScreen (display);
depth = DefaultDepth (display, screen);
connection = ConnectionNumber (display);
// RETRIEVE ROOT WINDOW
Window rootWindow;
rootWindow = RootWindow (display, screen);
// END RETRIEVE ROOT WINDOW
// LOOP THROUGH ALL WINDOWS
FindPixel (windowName, x, y, display, rootWindow);
// END LOOP THROUGH ALL WINDOWS
// DISCONNECT FROM THE XSERVER
XCloseDisplay (display);
// END DISCONNECT FROM THE XSERVER
return EXIT_SUCCESS;
}
void YARPImageTrackTool::Apply(ImgInt3 frame1, ImgInt3 frame2, int x, int y)
{
quality = FindPixel(frame1, y, x, frame2, &ty, &tx, blockXSize, blockYSize, windowXSize, windowYSize, windowXOffset, windowYOffset, normalize);
}
