Added: Apr 29, 2002
Snippet uploaded by: snippet
Written By: unknown
Demo: Sorry, no demo
Fades a bitmap
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Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long
Private Declare Function CreateCompatibleDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function CreateCompatibleBitmap Lib "gdi32" (ByVal hdc As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long
Private Declare Function DeleteDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Private Const SRCAND = &H8800C6
Private Const SRCCOPY = &HCC0020
Private Sub Command1_Click()
Dim lDC As Long
Dim lBMP As Long
Dim W As Integer
Dim H As Integer
Dim lColor As Long
W = ScaleX(Picture1.Picture.Width, vbHimetric, vbPixels)
H = ScaleY(Picture1.Picture.Height, vbHimetric, vbPixels)
lBMP = CreateCompatibleBitmap(Picture1.hdc, W, H)
lDC = CreateCompatibleDC(Picture1.hdc)
Call SelectObject(lDC, lBMP)
BitBlt lDC, 0, 0, W, H, Picture1.hdc, 0, 0, SRCCOPY
Picture1 = LoadPicture("")
For lColor = 255 To 0 step -3
Picture1.BackColor = RGB(lColor, lColor, lColor)
BitBlt Picture1.hdc, 0, 0, W, H, lDC, 0, 0, SRCAND
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