When there are multiple `AddRadioButton`s, the icons placed with `.AddCustomButton` are misaligned.

[Eschamali]

Hello. Thank you very much for the fix in issue #11.

I attempted to reopen that issue because I found an additional problem, but I received a "no permission" error. Therefore, I apologize for creating a new issue.

I have confirmed that the procedure Sample_NoCustomIcon from issue #11 works correctly. (Code omitted here.)

However, in practical use cases, it is very common to have multiple radio buttons.

For example:

Private Sub Sample_NoCustomIcon_multiRadioButtons()
    Dim testIcon As LongPtr, tmp As LongPtr
    Debug.Print ExtractIconExA("C:\Windows\System32\SHELL32.dll", 0, tmp, testIcon, 1)

    With New cTaskDialog
        .CommonButtons = TDCBF_CLOSE_BUTTON
        
        .AddRadioButton 201, "testChose1"
        .AddRadioButton 202, "testChose2"
        
        .AddCustomButton 102, "button 2", testIcon
        .AddCustomButton 101, "button 3", testIcon

        .Flags = TDF_USE_COMMAND_LINKS

        .ParenthWnd = Application.hWnd
        .ShowDialog

    End With

End Sub

When there are multiple AddRadioButton calls like this, the icon assigned in .AddCustomButton 102 is no longer displayed.

Based on my own testing, it seems that the icon assignment for .AddCustomButton is offset by the number of radio buttons added. In other words, the icon index appears to shift when radio buttons are present.

Would it be possible to ensure that the icon assignment for .AddCustomButton remains correct even when multiple .AddRadioButton calls are used?

Thank you very much for your time and support.

[fafalone]

I'm sure there's some consequence I'm going to have to investigate on other button sets, but the immediate issue with radio+command links can be resolved commenting this out altogether in SetButtonIcons

If m_HasRadioButtons Then
    lOffset = UBound(m_uRadioButtons) '+ 1
End If

[Eschamali]

Thank you very much for providing the workaround.

For now, I have confirmed that with this fix, the icons and buttons are correctly aligned, so I will proceed with this approach in my implementation.

Please let me know if there are any further updates or improvements regarding this issue.

Thank you again for your support.