Using F-IN-BOX you are able to create applications based on transparent flash movies. You can create applications with translucency non-rectangle forms. Use Flash to make applications with modern user interface, make a business logic using .NET.

Use f_in_box__form component to work with transparency.

Please note that form transparency is supported only under Win2k (or higher), 16 / 32 bpp display mode. To check if the transparency is supported use the function IsTransparentModeAvailable:

// Check transparent mode
if (!f_in_box__lib.Global.IsTransparentModeAvailable)
{
   System.Windows.Forms.MessageBox.Show("Transparent mode is not available");
   return;
}

// MyTranslucencyForm is inherited from f_in_box__lib.f_in_box__form
// Creating translucency form 
MyTranslucencyForm FlashPlayerForm = new MyTranslucencyForm();

// Loading movie from stream
System.IO.Stream MovieStream = 
   System.Reflection.Assembly.GetExecutingAssembly().
      GetManifestResourceStream("Sample4_Translucency.Embedded_Movies.movie.swf");
FlashPlayerForm.PutMovieFromStream(MovieStream);

// Positions
FlashPlayerForm.Width = 400;
FlashPlayerForm.Height = 400;
FlashPlayerForm.Left = 
   System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width / 2 - 
   FlashPlayerForm.Width / 2;
FlashPlayerForm.Top = 
   System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height / 2 - 
   FlashPlayerForm.Height / 2;

// Play and...
FlashPlayerForm.FlashMethod_Play();
// ...show
FlashPlayerForm.Show();

Application.Run(FlashPlayerForm);

' Check transparent mode
If Not f_in_box__lib.Global.IsTransparentModeAvailable Then
   MessageBox.Show("Transparent mode is not available", _
                   Application.ProductName)
   Return
End If

' MyTranslucencyForm is inherited from f_in_box__lib.f_in_box__form;
' Creating translucency form 
Dim FlashPlayerForm As New MyTranslucencyForm

' Loading movie from stream
Dim MovieStream As System.IO.Stream = _
   System.Reflection.Assembly.GetExecutingAssembly._
      GetManifestResourceStream("Sample4_Translucency.movie.swf")
FlashPlayerForm.PutMovieFromStream(MovieStream)

' Positions
FlashPlayerForm.Width = 400
FlashPlayerForm.Height = 400
FlashPlayerForm.Left = _
   Screen.PrimaryScreen.WorkingArea.Width() / 2 - _
   FlashPlayerForm.Width / 2
FlashPlayerForm.Top = _
   Screen.PrimaryScreen.WorkingArea.Height() / 2 - _
   FlashPlayerForm.Height / 2

' Play and...
FlashPlayerForm.FlashMethod_Play()
' ...show
FlashPlayerForm.Show()

Application.Run(FlashPlayerForm)