1. Home
  2. Reference documentation
  3. VCL reference
  4. Variables
  5. Client request

client.display.height

INTEGER, read-only.

Available inall subroutines.

The total number of addressable pixels in the vertical direction of the display on the client device, when held in its default orientation.

Examples

You can use arithmetic in VCL to calculate the number of megapixels for a display:

sub display_mp FLOAT {
  declare local var.mp FLOAT;


  if (client.display.height > 0 && client.display.width > 0) {
    set var.mp  = client.display.height;
    set var.mp *= client.display.width;
    set var.mp /= 1000000;
  }


  return var.mp;
}

You can find the default orientation of a client device (regardless of its current orientation):

sub display_orientation STRING {
  if (client.display.height > 0 && client.display.width > 0) {
    return if (client.display.height > client.display.width, "portrait", "landscape");
  } else {
    return "unknown";
  }
}
Fastly
© Fastly 2024