Shove them in a folder.
Here is some example code that finds text using custom font:
SCAR Code:
Function MyAction(Text:string): Boolean;
var
tx, ty, S, MyChars: Integer;
begin
Result := False;
MyChars:=LoadChars2('C:\Program Files\SCAR 3.21\Fonts\MyChars\')
S := CreateBitmapMaskFromText(Text, MyChars);
if FindBitmapMaskTolerance(S, tx, ty, 62, 19, 76, 34, 10, 30) then
begin
Result := True;
end;
FreeBitmap(S);
end;
I think you would now just need to change the font path, and the boundaries on where to search for it, and tweak it any other way you wish.
You could now also look though some of the SRL text finding functions as examples for yourself.
One common problem I ran into was having too much/too little 'black space' before/after the font letters/numbers I made, sometimes you need to tweak it by a pixel or two.
:/ Very brief explanation, but hopefully someone else can help you from here onwards!