The Find Image on Screen action finds a specified image on the screen and stores the rectangle containing the match followed by the fuzz of the match (0-100), ie, (left,top,width,height,fuzz), in a variable.
The image location is stored in the variable may be referenced as a structure in other actions like Move and Click Mouse using the following notation:
You specify the image to match (usually got with a Command-Control-Shift-4 screen capture) by pasting an image into the image well. You also specify the amount of fuzziness allowed — because of transparency and anti-aliasing, almost all screen matches are fuzzy to some degree, but usually about 20% is a good place to start.
You can require the match to be unique (so if there are two or more good matches then the action will fail to find the image), or you can accept the best match even if there is more than one.
You can optionally display all the matches on the screen which can be helpful in determining the right amount of fuzz to use.
In v7.0+, you can search for the image on:
Remember when specifying the area, as with all numeric fields, the numbers can be calculations including functions, and the fields expand to allow for longer expressions as soon as you type something other than a number, so this allows very precise control of where you can match.
This action cannot fail per se, but it can fail to find the image, in which case the variable will be set to the empty string.