x64 Control may not support transparent background colors

[Dobby233Liu]

creation date = 2009-03-04T12:43:12.29-08:00

IWizardForm wiz = WizardFactory.Create() causes this ArgumentException in Anolis.GUI.Program   I am not sure if this is related to compiling on Visual Studio 2008 x64. Here's a possible resolution, maybe you can find a way to insert it in the base form class for W3b.Wizards

1) in class constructor: SetStyle(ControlStyles.SupportsTransparentBackColor, true); 2) a BackColor override:

    public override Color BackColor
    {
        get
        {
            return base.BackColor;
        }
        set
        {
            if (base.BackColor != value)
            {
              base.BackColor = value;
              TransparentMode = (base.BackColor == Color.Transparent);
              this.InvalidateEx();
            }
        }
    }

3) a OnPaintBackground override:

    protected override void OnPaintBackground(PaintEventArgs pevent)
    {
        if (TransparentMode)
        {
            base.OnPaintBackground(pevent);
            return;
        }
        PaintGradientBackground(pevent.Graphics);
    }

There's also the WS_EX_TRANSPARENT style for doing something similar but I doubt it would work in this case

[Dobby233Liu]

creation date = 2009-03-04T15:27:39.753-08:00

I'm not quite sure I understand the problem being reported.

The W3b.Wizards library returns an AeroWizard instance on Vista or higher and a Wizard97 form on XP and earlier. Are you running on Vista? That might be the problem because I haven't really worked on the AeroWizard form. I'll modify Anolis.Gui so that it always uses Wizard97 and doesn't use the WizardFactory.

I'm developing with VS2008 on XPx64 btw.

[Dobby233Liu]

creation date = 2009-03-05T00:17:49.95-08:00

Yes, I'm working on Vista x64... I guess in this case there's something trying to use a transparent background color on the glass part of the form which doesn't work with the old WS_TRANSPARENT

[Dobby233Liu]

creation date = 2009-03-05T12:10:31.16-08:00

I've spoken to Sven (who wrote the ExtendedForm class). The problem is caused by my placement of a control with a transparent background on top of a glass region. He says I'll have to paint directly to the DC of the form (bit of a shame, but doable).

[Dobby233Liu]

closed date = 2009-04-17T14:39:07.227-07:00

This is now closed. I've fixed the initial problem and am working on implementing the Back button in Aero Wizard forms.