DefInt A-Z

Declare Function BitBlt Lib "Gdi" (ByVal destHdc, ByVal X, ByVal Y, ByVal w, ByVal h, ByVal srcHdc, ByVal srcX, ByVal srcY, ByVal Rop As Long)

Const SRCAND = &H8800C6
Const SRCINVERT = &H660046

Sub Form_Paint ()
    
    ' ** Display something random text on the form **
    '
    Cls
    CurrentY = Command1.Top + Command1.Height
    Rows = (ScaleHeight - CurrentY) \ TextHeight(" ")
    
    For Y = 1 To Rows
        Print "DESTINATION DESTINATION"
    Next Y
    
End Sub

Sub Form_Resize ()
    Refresh
End Sub

Sub Command1_Click ()
    
    Refresh

    ' ** Display Bitmap with center of it being transparent
    ' Logic is:  (Dest AND Mask) XOR Image
    '
    YDest = Command1.Top + Command1.Height
    
    R = BitBlt(Hdc, 0, YDest, Pic_Mask.Width, Pic_Mask.Height, Pic_Mask.Hdc, 0, 0, SRCAND)
    R = BitBlt(Hdc, 0, YDest, Pic_Image.Width, Pic_Image.Height, Pic_Image.Hdc, 0, 0, SRCINVERT)

    XDest = Pic_Image.Width + 1
    R = BitBlt(Hdc, XDest, YDest, Pic_Mask.Width, Pic_Mask.Height, Pic_Mask.Hdc, 0, 0, SRCAND)
    R = BitBlt(Hdc, XDest, YDest, Pic_Image.Width, Pic_Image.Height, Pic_Image.Hdc, 0, 0, SRCINVERT)

End Sub

Sub Command2_Click ()

    Refresh

End Sub

Sub Form_Load ()

    Move (Screen.Width - Width) \ 2, (Screen.Height - Height) \ 2
End Sub