Function Reference
FFLocalizeChangesCompares two SnapShots and specifies the number of differences, as well as the area in which they occur.
FFLocalizeChanges ( NoSnapShot1, NoSnapShot2 [, ShadeVariation] )
Parameters
NoSnapShot1 | The "slot" number of the first SnapShot to compare. |
NoSnapShot2 | The "slot" number of the second SnapShot to compare. |
ShadeVariation | [optional] A number between 0 and 255 to indicate the allowed number of shades of variation of the red, green, and blue components of the colour. Default is 0 (exact match). |
Return Value
Success: | Returns a five-element array specifying the area and number of differences. |
Failure: | Returns 0 and sets @ERROR = 1 |
Remarks
If successful, the elements of the array returned are as follows:[0]: left edge of the rectangle
[1]: upper edge of the rectangle
[2]: right edge of the rectangle
[3]: lower edge of the rectangle
[4]: Number of pixels that changed
Related
FFSnapShot, FFIsDifferent