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procedure DrawText(word: PUint16; x_pos, y_pos: integer; color: Uint32);
var
  text: PSDL_Surface; 
  dest: TSDL_Rect;
begin 
  text := TTF_RenderUNICODE_blended(font, word, TSDL_Color(Color));
  dest.x := x_pos;
  dest.y := y_pos;
  SDL_BlitSurface(text,nil, screen, @dest);
  SDL_FreeSurface(text);
end;
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font: PTTF_Font;
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TTF_Init;
font:=TTF_OpenFont('kaiu.ttf', 20);
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str: WideString;
......
str:=' ÕâÊÇÒ»¸öÏÔʾÖÐÎĵIJâÊÔ';
DrawText(@str[1], 100, 100, $FFFFFF);
Sdl_UpdateRect(screen, 0, 0, screen.w, screen.h);
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DelphiÖÐʹÓÃ@È¡º¯ÊýµØÖ·µÄÎÊÌâ

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unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,Dialogs;
type
  TForm1 = class(TForm)
    procedure one();
    function two(x,y:integer):integer;
  private
    ......
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