//from
http://www.experts-exchange.com/Programming/Programming_Languages/Delphi/Q_10144309.htmlfunction GetLogPixelsX : integer;
var i1 : integer;
begin
i1:=CreateCompatibleDC(0);
result:=GetDeviceCaps(i1,LogPixelsX);
DeleteDC(i1);
end;function millimeter_to_pixel(millimeter: integer) : integer;
begin
result:=round(GetLogPixelsX*millimeter/254);
end;
http://www.experts-exchange.com/Programming/Programming_Languages/Delphi/Q_10144309.htmlfunction GetLogPixelsX : integer;
var i1 : integer;
begin
i1:=CreateCompatibleDC(0);
result:=GetDeviceCaps(i1,LogPixelsX);
DeleteDC(i1);
end;function millimeter_to_pixel(millimeter: integer) : integer;
begin
result:=round(GetLogPixelsX*millimeter/254);
end;
SIX := GetDeviceCaps(FormDC, LOGPIXELSX);
SIY := GetDeviceCaps(FormDC, LOGPIXELSY);
PPIX := GetDeviceCaps(Printer.Handle, LOGPIXELSX);
PPIY := GetDeviceCaps(Printer.Handle, LOGPIXELSY);
function Map(X: Integer; Y: Integer): Integer;
begin
Result := 0;
if Y = 0 then
Result := Trunc(X*PPIX/SIX);
if Y = 1 then
Result := Trunc(X*PPIY/SIY);
end;
delphi6.0通过
1Point=20 twips
1inch=72 Points
用pinter对象即可达到.
可查阅<delphi4 开发宝典>等外籍人士的著作都有