Difference between revisions of "FindColorEx"
From SCAR Divi Manual
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This function searches for a given color specified by '''Color''' inside of a given search area specified by '''XS''', '''YS''', '''XE''', '''YE''' 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. | This function searches for a given color specified by '''Color''' inside of a given search area specified by '''XS''', '''YS''', '''XE''', '''YE''' 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 [[false]] if the color was not found, if it was it returns [[true]] and the coordinates of all found instances of the color in the [[TPointArray]] '''Points''' | + | The function returns [[false]] if the color was not found, if it was it returns [[true]] and the coordinates of all found instances of the color in the [[TPointArray]] '''Points'''. |
==Example== | ==Example== | ||
Revision as of 13:34, 2 April 2012
Definition
function FindColors(out Points: TPointArray; const Color, XS, YS, XE, YE: Integer): Boolean;
Availability
SCAR Divi 3.20 > Current
Description
This function searches for a given color specified by Color inside of a given search area specified by XS, YS, XE, YE 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 false if the color was not found, if it was it returns true and the coordinates of all found instances of the color in the TPointArray Points.
Example
var
w, h: Integer;
TPA: TPointArray;
begin
GetClientDimensions(w, h);
if FindColors(TPA, 0, 0, 0, w - 1, h - 1) then
begin
WriteLn('Found color ' + IntToStr(Length(TPA)) + ' times');
WriteLn('Coordinates: ' + TPAToStr(TPA));
end;
end.
