• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 709
  • Last Modified:

DHTMLEdit problem

//DHTMLEdit problem

//Problem is when I try to free DHTMLEdit !
//Problem is as You see DHTMLEdit1DisplayChanged procedure.
//Can You fix it ?

//Thanks.

procedure TMainForm1.DHTMLEdit1DisplayChanged(Sender: TObject);
var
  ovFontName, ovFontStyle, ovFontStyles,ovFontSize, ovInVar: OleVariant;
  FontNameStatus: DWORD;
  FontSizeStatus: DWORD;
  StyleNameStatus: DWORD;
  vo: OleVariant;
  pValue: OleVariant;
begin
sasadhtmleditmess:='Pass';
if sasaclosecommand<>'Close' then
begin
  if not (TObject(Componentlist[ICount]) is TDHTMLEdit) then
  exit;
if TDHTMLEdit(ComponentList[ICount]).DOM.selection.type_ = 'Text' then
try
  ToolButton39.Down := ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_BOLD) and DECMDF_LATCHED) = DECMDF_LATCHED);
  ToolButton40.Down := ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_ITALIC) and DECMDF_LATCHED) = DECMDF_LATCHED);
  ToolButton41.Down := ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_UNDERLINE) and DECMDF_LATCHED) = DECMDF_LATCHED);

  ToolButton5.Enabled := ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_UNDO) and DECMDF_ENABLED) = DECMDF_ENABLED);
  ToolButton15.Enabled := ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_REDO) and DECMDF_ENABLED) = DECMDF_ENABLED);

if ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_GETFONTNAME) and DECMDF_DISABLED) = DECMDF_DISABLED) then
begin
ovFontName := TDHTMLEdit(ComponentList[ICount]).ExecCommand(DECMD_GETFONTNAME, OLECMDEXECOPT_DODEFAULT, ovInVar);
ComboBox1.Text:=ovFontName;
end;


if ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_GETFONTSIZE) and DECMDF_DISABLED) = DECMDF_DISABLED) then
begin
ovFontSIZE := TDHTMLEdit(ComponentList[ICount]).ExecCommand(DECMD_GETFONTSIZE, OLECMDEXECOPT_DODEFAULT, ovInVar);
ComboBox3.Text:=ovFontSize;
end;


ovFontStyles := TDHTMLEdit(ComponentList[ICount]).ExecCommand(DECMD_GETBACKCOLOR, OLECMDEXECOPT_DODEFAULT, ovInVar);

//showmessage(ovFontStyles);//ColorDialog1.Color:=ovFontStyles;

ovFontStyles := TDHTMLEdit(ComponentList[ICount]).ExecCommand(DECMD_GETFORECOLOR, OLECMDEXECOPT_DODEFAULT, ovInVar);

//ColorDialog2.Color:=ovFontStyles;
if ((TDHTMLEdit(ComponentList[ICount]).QueryStatus(DECMD_GETBLOCKFMT) and DECMDF_DISABLED) = DECMDF_DISABLED) then
begin
ovFontStyle := TDHTMLEdit(ComponentList[ICount]).ExecCommand(DECMD_GETBLOCKFMT, OLECMDEXECOPT_DODEFAULT, ovInVar);
ComboBox2.Text:=ovFontStyle;
end;
except
end;
end;
sasadhtmleditmess:='';

end;
0
cvbn
Asked:
cvbn
1 Solution
 
vbmnCommented:
did you try this one ?

I was able to solve this problem by changing the code in DHTMLEDLIB_TBL.PAS
getControlInterface
as follows:

function TDHTMLEdit.getControlInterface : iDHTMLEdit;
var
idsp : iDispatch;
begin
idsp := iDispatch(OleObject);
idsp.QueryInterface( IID_iDHTMLEdit, result );
end;

And you can try adding these lines to the bottom of your unit:

initialization
OleInitialize(nil);

finalization
OleUninitialize;

And if You use OnMessage:

application.onmessage:=nil;
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

The 14th Annual Expert Award Winners

The results are in! Meet the top members of our 2017 Expert Awards. Congratulations to all who qualified!

Tackle projects and never again get stuck behind a technical roadblock.
Join Now