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-
- PROGRAM name ;
-
- CONST
- {$I gemconst.pas}
-
- TYPE
- {$I gemtype.pas}
-
- VAR
- height : integer ;
- s : Str255 ;
-
- {$I gemsubs.pas}
-
- { Text_Height - Set the height in pixels of text, when it is drawn using the
- Draw_String library call. }
-
- PROCEDURE Text_Height( height : integer ) ;
-
- TYPE
- Ctrl_Parms = ARRAY [ 0..11 ] OF integer ;
- Int_In_Parms = ARRAY [ 0..15 ] OF integer ;
- Int_Out_Parms = ARRAY [ 0..45 ] OF integer ;
- Pts_In_Parms = ARRAY [ 0..11 ] OF integer ;
- Pts_Out_Parms = ARRAY [ 0..11 ] OF integer ;
-
- VAR
- control : Ctrl_Parms ;
- int_in : Int_In_Parms ;
- int_out : Int_Out_Parms ;
- pts_in : Pts_In_Parms ;
- pts_out : Pts_Out_Parms ;
-
- PROCEDURE VDI_Call( cmd, sub_cmd : integer ; nints, npts : integer ;
- VAR ctrl : Ctrl_Parms ;
- VAR int_in : Int_In_Parms ; VAR int_out : Int_Out_Parms ;
- VAR pts_in : Pts_In_Parms ; VAR pts_out : Pts_Out_Parms ;
- translate : boolean ) ;
- EXTERNAL ;
-
- BEGIN
- pts_in[0] := 0 ;
- pts_in[1] := height ;
- VDI_Call(12, 0, 0, 2, control, int_in, int_out, pts_in, pts_out, false);
- END ;
-
- { Get_Height - Get the height in pixels of text, when it is drawn using the
- Draw_String library call. }
-
- FUNCTION Get_Height : integer ;
-
- TYPE
- Ctrl_Parms = ARRAY [ 0..11 ] OF integer ;
- Int_In_Parms = ARRAY [ 0..15 ] OF integer ;
- Int_Out_Parms = ARRAY [ 0..45 ] OF integer ;
- Pts_In_Parms = ARRAY [ 0..11 ] OF integer ;
- Pts_Out_Parms = ARRAY [ 0..11 ] OF integer ;
-
- VAR
- control : Ctrl_Parms ;
- int_in : Int_In_Parms ;
- int_out : Int_Out_Parms ;
- pts_in : Pts_In_Parms ;
- pts_out : Pts_Out_Parms ;
-
- PROCEDURE VDI_Call( cmd, sub_cmd : integer ; nints, npts : integer ;
- VAR ctrl : Ctrl_Parms ;
- VAR int_in : Int_In_Parms ; VAR int_out : Int_Out_Parms ;
- VAR pts_in : Pts_In_Parms ; VAR pts_out : Pts_Out_Parms ;
- translate : boolean ) ;
- EXTERNAL ;
-
- BEGIN
- VDI_Call(131, 0, 0, 0, control, int_in, int_out, pts_in, pts_out, false);
- Get_Height := pts_out[9] ;
- END ;
-
-
-
- PROCEDURE wait_button ;
-
- VAR
- msg : Message_Buffer ;
- junk : integer ;
-
- BEGIN
- junk := Get_Event( E_Button, 1, 1, 1, 0,
- false, 0, 0, 0, 0, false, 0, 0, 0, 0,
- msg, junk, junk, junk, junk, junk, junk ) ;
- junk := Get_Event( E_Button, 1, 0, 1, 0,
- false, 0, 0, 0, 0, false, 0, 0, 0, 0,
- msg, junk, junk, junk, junk, junk, junk ) ;
- END ;
-
- BEGIN
- IF Init_Gem >= 0 THEN
- BEGIN
- s := 'nn mm This is a test-- xyzlq' ;
- s[4] := chr( Get_Height DIV 10 + ord( '0' ) ) ;
- s[5] := chr( Get_Height MOD 10 + ord( '0' ) ) ;
- Draw_String( 20, 190, s ) ;
- wait_button ;
- FOR height := 2 TO 99 DO
- BEGIN
- Text_Height( height ) ;
- s[1] := chr( height DIV 10 + ord( '0' ) ) ;
- s[2] := chr( height MOD 10 + ord( '0' ) ) ;
- s[4] := chr( Get_Height DIV 10 + ord( '0' ) ) ;
- s[5] := chr( Get_Height MOD 10 + ord( '0' ) ) ;
- Draw_String( 20, 190, s ) ;
- wait_button ;
- END ;
- Exit_Gem ;
- END ;
- END.
-
-
-