Option 1

Use the StackTrace property of an exception object (Delphi 2009+):

except
on E: Exception do
Memo1.Lines.Text := E.StackTrace;
end;

Option 2

Use the ToString method to convert call stack to single string with default formatting:

var
  CallStack: TEurekaBaseStackList;
begin
  CallStack := { ... somehow retrieve call stack ... };
  Memo1.Lines.Text := CallStack.ToString;
end;

Option 3

Use the Assign method to convert call stack to TStrings object with default formatting:

var
  CallStack: TEurekaBaseStackList;
begin
  CallStack := { ... somehow retrieve call stack ... };
  Memo1.Lines.Assign(CallStack);
end;

Option 4

Use the CallStackToString function from ECallStack unit:

// (CallStackToString function allows you to override header and formatting)

var
  CallStack: TEurekaBaseStackList;
  Formatter: TCompactStackFormatter;
begin
  CallStack := { ... somehow retrieve call stack ... };

  // A): Default formatting and header:
  Memo1.Lines.Text := CallStackToString(CallStack);

  // B): With custom header:
  Memo1.Lines.Text := CallStackToString(CallStack, 'Error Details:');

  // C): Custom formatting:
  Formatter := TCompactStackFormatter.Create;
  try
    // <- here you can customize Formatter (for example: alter captions for columns, etc.)
    Memo1.Lines.Text := CallStackToString(CallStack, '', Formatter);
  finally
    FreeAndNil(Formatter);
  end;
end;

See below for examples of various formatters.

Option 5

Use CallStackToStrings function from ECallStack unit:

// (CallStackToStrings function allows you to override header and formatting)

var
  CallStack: TEurekaBaseStackList;
  Formatter: TCompactStackFormatter;
begin
  CallStack := { ... somehow retrieve call stack ... };

  // A): Default formatting and header:
  CallStackToStrings(CallStack, Memo1.Lines);

  // B): With custom header:
  CallStackToStrings(CallStack, Memo1.Lines, 'Error Details:');

  // C): Custom formatting:
  Formatter := TCompactStackFormatter.Create;
  try
    // <- here you can customize Formatter (for example: alter captions for columns, etc.)
    CallStackToStrings(CallStack, Memo1.Lines, '', Formatter);
  finally
    FreeAndNil(Formatter);
  end;
end;

See below for examples of various formatters.

Available formatters

EurekaLog has 4 built-in formatters:

•	TEurekaStackFormatter - general formatter for EurekaLog-style call stack (i.e. fixed-width table with columns) - best to be used in text files:

---------------------------------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------------------------------

|*Exception Thread: ID=9672; Parent=0; Priority=0 |

|Class=; Name=MAIN |

|DeadLock=0; Wait Chain= |

|Comment= |

|-------------------------------------------------------------------------------------------------------------------------------|

|7FFFFFFE|04 |00000000|007CD41D|Project183.exe|0048D41D|Unit1.pas |Unit1 |TForm1 |Button1Click |37[1] |

|00000060|04 |019DF02C|006F5043|Project183.exe|003B5043|Vcl.Controls.pas|Vcl.Controls|TControl |Click |7707[9]|

|00000020|04 |019DF038|00710176|Project183.exe|003D0176|Vcl.StdCtrls.pas|Vcl.StdCtrls|TCustomButton|Click |5953[3]|

...

•	TEurekaStackFormatterV6 - backward-compatibility formatter to produce call stack in EurekaLog V6 format (less columns)

-----------------------------------------------------------------------------

-----------------------------------------------------------------------------

|*Exception Thread: ID=10640; Parent=0; Priority=0 |

|Class=; Name=MAIN |

|DeadLock=0; Wait Chain= |

|Comment= |

|---------------------------------------------------------------------------|

...

•	TSimpleStackFormatter - produces list-like view of call stack (no columns) suitable for variable-width fonts (best to be used in message boxes)

(0048D41D){Project183.exe} [007FD41D] Unit1.TForm1.Button1Click (Line 37, "Unit1.pas") + $11

(003B5043){Project183.exe} [00725043] Vcl.Controls.TControl.Click (Line 7707, "Vcl.Controls.pas") + $8

(003D0176){Project183.exe} [00740176] Vcl.StdCtrls.TCustomButton.Click (Line 5953, "Vcl.StdCtrls.pas") + $2

...

•	TCompactStackFormatter - similar to TSimpleStackFormatter, but produces more compact output with less details (good for quick preview)

[0132D41D] Unit1.TForm1.Button1Click (Line 37, "Unit1.pas")

[01255043] Vcl.Controls.TControl.Click (Line 7707, "Vcl.Controls.pas")

[01270176] Vcl.StdCtrls.TCustomButton.Click (Line 5953, "Vcl.StdCtrls.pas")

...