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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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SCREEN.SWG
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0047_Dump Screen.pas
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Pascal/Delphi Source File
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1993-11-26
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2KB
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78 lines
Uses CRT, DOS;
{-- read the character at the cursor and return it as a Char --}
Function ScreenChar : Char;
Var
R : Registers;
begin
Fillchar(R, SizeOf(R), 0);
R.AH := 8;
R.BH := 0;
Intr($10, R);
ScreenChar := Chr(R.AL);
end;
{-- sample routine to read the screen and dump it to an ASCII file --}
{-- it uses ScreenChar ----}
Procedure DumpScreen;
Var
Num : Integer;
X1,Y1, x,y : Byte;
S : String[79]; {- line length string; some prefer string[80] -}
Ch : Char;
Buf : Array[1..25] of String[79]; {- buffer to hold the screen contents -}
F : Text;
FName:String[79];
begin
x1 := WhereX; y1 := WhereY; {- save present location of the cursor -}
{- initialise the variables --}
Num := 0;
X := 1;
Y := 1;
S := '';
FillChar(Buf, Sizeof(Buf), #0);
{- do the stuff --}
Repeat
GotoXy(X,Y); {-- start from top left of screen --}
Inc(Num); {-- increase line counter --}
Ch := ScreenChar; {-- read the character at screen location --}
S := S+Ch; {-- add it to temporary string --}
Inc(X); {-- goto next screen column -}
If (Ch = #13) or (X = 79) Then {- CR, or end of screen-width-}
begin
X := 1; {- back to column 1 -}
Buf[Y] := s; {- put the line in buffer (string array) -}
s := ''; {- empty the temporary string -}
Inc(Y); {- goto next line (row) -}
end;
Until (Num = 1975); {- until we have read the screen (79*25 chars )-}
{-- write the buffer to a text file --}
FName := 'SCREEN.SAV';
Assign(F, FName);
SetTextBuf(F, Buf);
{$I-}
Append(f); {- if the file exists, append buffer to it -}
{$I+}
If IoResult <> 0 Then ReWrite(f); {- else create a new one -}
For x := 1 to 25 do Writeln(F, Buf[x]); {- write it -}
{$I-}
Close(F);
{$I+}
If IoResult <> 0 Then;
GotoXy(x1,y1); {- return to original location -}
end;
BEGIN
DumpScreen;
END.