Difference between revisions of "CountColorTolerance"
From SCAR Divi Manual
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==Definition== | ==Definition== | ||
<source lang="scar" lines="false"> | <source lang="scar" lines="false"> | ||
| − | function CountColorTolerance(Color, | + | function CountColorTolerance(const Color, XS, YS, XE, YE, Tol: Integer): Integer; |
</source> | </source> | ||
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==Description== | ==Description== | ||
| − | This function searches for a given color specified by '''Color''' within a [[tolerance]] range specified by '''Tol | + | This function searches for a given color specified by '''Color''' within a [[tolerance]] range specified by '''Tol''' using a scan-line pattern. The search area is given as a set of upper-left ('''XS''', '''YS''') and lower-right ('''XE''', '''YE''') coordinates which are specified relative to the selected client window. If the given search area is invalid ('''XS''' > '''XE''' or '''YS''' > '''YE'''), an exception is thrown. |
| + | |||
| + | The function returns the number of pixels it found, as a result of this 0 is returned when the color was not found. | ||
| + | |||
| + | The active tolerance algorithm can be changed using the [[ColorToleranceSpeed]] function. | ||
==Example== | ==Example== | ||
Latest revision as of 13:42, 2 April 2012
Definition
function CountColorTolerance(const Color, XS, YS, XE, YE, Tol: Integer): Integer;
Availability
SCAR Divi 3.00 > Current
Description
This function searches for a given color specified by Color within a tolerance range specified by Tol using a scan-line pattern. The search area is given as a set of upper-left (XS, YS) and lower-right (XE, YE) coordinates which are specified relative to the selected client window. If the given search area is invalid (XS > XE or YS > YE), an exception is thrown.
The function returns the number of pixels it found, as a result of this 0 is returned when the color was not found.
The active tolerance algorithm can be changed using the ColorToleranceSpeed function.
Example
var
w, h: Integer;
begin
GetClientDimensions(w, h);
WriteLn('Counted color ' + IntToStr(CountColorTolerance(4, 0, 0, w - 1, h - 1, 5)) + ' times');
end.
