How can I get all installed components inside IDE? (Delphi) - delphi

Question

How can I get all installed components in TStrings?
I think this code work only within packages:
uses TypInfo, ToolIntf, Exptintf;
procedure GetComponentNames(lst: TStrings);
var
i, k: Integer;
CRef: TClass;
strName: ShortString;
begin
lst.Clear;
for i := 0 to ToolServices.GetModuleCount-1 do
begin
for k := 0 to ToolServices.GetComponentCount(i)-1 do
begin
CRef := TClass(GetClass(ToolServices.GetComponentName(i, k)));
while CRef <> nil do
begin
strName := CRef.ClassName;
if lst.IndexOf(strName) = -1 then
lst.Add(strName);
if str <> 'TComponent' then
CRef := CRef.ClassParent
else
CRef := nil;
end;
end;
end;
end;
Or:
uses ToolsApi;
{....}
var
a, i: Integer;
begin
with (BorlandIDEServices as IOTAPackageServices) do
begin
for a := 0 to GetPackageCount - 1 do
begin
for i := 0 to GetComponentCount(a) - 1 do
begin
{get each component name with GetComponentName(a, i);}
// DoSomething
end;
end;
end;
end;
Thanks for help.

Answer 1

This example doesn't use the OpenAPI, it uses the Registry. It works but it also lists non-visual components amongst other hidden items.
procedure GetComponentNames(lst: TStrings);
var
i, j, iPos: Integer;
Reg: TRegistry;
sComponent: String;
slValues, slData: TStrings;
begin
Reg := TRegistry.Create;
slValues := TStringList.Create;
slData := TStringList.Create;
try
Reg.RootKey := HKEY_CURRENT_USER;
Reg.OpenKey('Software\Borland\Delphi\6.0\Palette', False); // Change reg key where appropriate
Reg.GetValueNames(slValues);
for i := 0 to Pred(slValues.Count) do
begin
lst.Append(slValues[i]);
lst.Append('----------');
slData.Delimiter := ';';
slData.DelimitedText := Reg.ReadString(slValues[i]);
for j := 0 to Pred(slData.Count) do
begin
sComponent := slData[j];
iPos := Pos('.', sComponent);
if (iPos > 0) then
Delete(sComponent, 1, iPos);
lst.Append(sComponent);
end;
end;
finally
slData.Free;
slValues.Free;
Reg.Free;
end; {try..finally}
end;
I'm not saying this is ideal but it does give you a list and a headstart.