Connaitre la taille de la police de Windows

function GetLargeFonts: boolean;
var
fontsize : integer;
hdc : Thandle;

begin
result := false;
hdc := GetDc(hwnd_desktop);
fontsize := GetDeviceCaps(hdc,logpixelsx);
ReleaseDc(hwnd_desktop,hdc);
if fontsize = 96 then result := false
else if fontsize = 120 then result := true;
end;