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 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.
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.
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.
Example: Click on Image in Area Relative to Front Window