Fade Picture in Picturebox from One Picture to Another

'Need 2 pictureboxes (Picture1 & Picture2)
'Set both pictureboxes AutoRedraw to True
'Set both pictureboxes ScaleMode to vbPixels
'Paste the following code in the Decs

Code:

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Private Const AC_SRC_OVER = &H0

Private Type BLENDFUNCTION
    BlendOp As Byte
    BlendFlags As Byte
    SourceConstantAlpha As Byte
    AlphaFormat As Byte
End Type

Private Declare Function AlphaBlend Lib "msimg32.dll" (ByVal hdc As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal hdc As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal lInt As Long, ByVal BLENDFUNCT As Long) As Long
Private Declare Sub RtlMoveMemory Lib "kernel32.dll" (Destination As Any, Source As Any, ByVal Length As Long)
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Private BF As BLENDFUNCTION, lBF As Long, fade As Byte
Private FadeInProgress As Boolean

Public Function FadeThePicture(fromPicture As PictureBox, toPicture As PictureBox)
If FadeInProgress Then Exit Function

For fade = 1 To 60 Step 2
    With BF
        .BlendOp = AC_SRC_OVER
        .BlendFlags = 0
        .SourceConstantAlpha = fade
        .AlphaFormat = 0
    End With
    RtlMoveMemory lBF, BF, 4
    AlphaBlend toPicture.hdc, 0, 0, toPicture.ScaleWidth, toPicture.ScaleHeight, fromPicture.hdc, 0, 0, fromPicture.ScaleWidth, fromPicture.ScaleHeight, lBF
    toPicture.Refresh
    Sleep 25
Next fade

DoEvents
End Function

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