Private Declare Function CreateEllipticRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long Private Declare Function CreateRoundRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long Private Declare Function SetWindowRgn Lib "user32" (ByVal hwnd As Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long Private Declare Function CreatePolygonRgn Lib "gdi32" (lpPoint As POINTAPI, ByVal nCount As Long, ByVal nPolyFillMode As Long) As Long Private Declare Function DrawFocusRect Lib "user32" (ByVal hdc As Long, lpRect As RECT) As Long Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long Private Declare Function GetWindowDC Lib "user32" (ByVal hwnd As Long) As Long Private Const RGN_AND = 1 Private Const RGN_COPY = 5 Private Const RGN_DIFF = 4 Private Const RGN_OR = 2 Private Const RGN_XOR = 3 Private Type POINTAPI X As Long Y As Long End Type Private Type RECT Left As Long Top As Long Right As Long Bottom As Long End TypeDim CanDraw As Boolean Dim xx, yy Dim rct As RECT Dim temprect As RECTPrivate Sub Form_Load() Dim pt(4) As POINTAPI pt(0).X = 12 pt(0).Y = 19 pt(1).X = 55 pt(1).Y = 83 pt(2).X = 95 pt(2).Y = 0 pt(3).X = 20 pt(3).Y = 0
Dim p, q As Long p = CreateEllipticRgn(8, 4, 163, 162) q = CreateEllipticRgn(23, 124, 155, 225) CombineRgn p, p, q, RGN_DIFF
q = CreatePolygonRgn(pt(0), 4, 1) CombineRgn p, p, q, RGN_DIFF
q = CreatePolygonRgn(pt1(0), 4, 1) CombineRgn p, p, q, RGN_DIFF
SetWindowRgn hwnd, p, True Me.Refresh End SubPrivate Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) GetWindowRect Form1.hwnd, rct temprect.Left = rct.Left + 6 temprect.Top = rct.Top + 24 temprect.Right = rct.Right - 6 temprect.Bottom = rct.Bottom - 6 DrawFocusRect GetWindowDC(GetDesktopWindow), temprect xx = X yy = Y CanDraw = True End SubPrivate Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single) If CanDraw = True Then DrawFocusRect GetWindowDC(GetDesktopWindow), temprect temprect.Left = rct.Left + 6 + X - xx temprect.Top = rct.Top + 24 + Y - yy temprect.Right = rct.Right - 6 + X - xx temprect.Bottom = rct.Bottom - 6 + Y - yy DrawFocusRect GetWindowDC(GetDesktopWindow), temprect End If End SubPrivate Sub Form_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) DrawFocusRect GetWindowDC(GetDesktopWindow), temprect Form1.Left = (temprect.Left - 6) * 15 Form1.Top = (temprect.Top - 24) * 15 CanDraw = False End SubPrivate Sub Image1_Click() Unload Me End Sub
Private Declare Function CreateRoundRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long
Private Declare Function SetWindowRgn Lib "user32" (ByVal hwnd As Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long
Private Declare Function CreatePolygonRgn Lib "gdi32" (lpPoint As POINTAPI, ByVal nCount As Long, ByVal nPolyFillMode As Long) As Long
Private Declare Function DrawFocusRect Lib "user32" (ByVal hdc As Long, lpRect As RECT) As Long
Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long
Private Declare Function GetWindowDC Lib "user32" (ByVal hwnd As Long) As Long
Private Const RGN_AND = 1
Private Const RGN_COPY = 5
Private Const RGN_DIFF = 4
Private Const RGN_OR = 2
Private Const RGN_XOR = 3
Private Type POINTAPI
X As Long
Y As Long
End Type
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End TypeDim CanDraw As Boolean
Dim xx, yy
Dim rct As RECT
Dim temprect As RECTPrivate Sub Form_Load()
Dim pt(4) As POINTAPI
pt(0).X = 12
pt(0).Y = 19
pt(1).X = 55
pt(1).Y = 83
pt(2).X = 95
pt(2).Y = 0
pt(3).X = 20
pt(3).Y = 0
Dim pt1(4) As POINTAPI
pt1(0).X = 12 + 65
pt1(0).Y = 19
pt1(1).X = 55 + 65
pt1(1).Y = 83
pt1(2).X = 95 + 65
pt1(2).Y = 0
pt1(3).X = 20 + 65
pt1(3).Y = 0
Dim p, q As Long
p = CreateEllipticRgn(8, 4, 163, 162)
q = CreateEllipticRgn(23, 124, 155, 225)
CombineRgn p, p, q, RGN_DIFF
q = CreatePolygonRgn(pt(0), 4, 1)
CombineRgn p, p, q, RGN_DIFF
q = CreatePolygonRgn(pt1(0), 4, 1)
CombineRgn p, p, q, RGN_DIFF
SetWindowRgn hwnd, p, True
Me.Refresh
End SubPrivate Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
GetWindowRect Form1.hwnd, rct
temprect.Left = rct.Left + 6
temprect.Top = rct.Top + 24
temprect.Right = rct.Right - 6
temprect.Bottom = rct.Bottom - 6
DrawFocusRect GetWindowDC(GetDesktopWindow), temprect
xx = X
yy = Y
CanDraw = True
End SubPrivate Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
If CanDraw = True Then
DrawFocusRect GetWindowDC(GetDesktopWindow), temprect
temprect.Left = rct.Left + 6 + X - xx
temprect.Top = rct.Top + 24 + Y - yy
temprect.Right = rct.Right - 6 + X - xx
temprect.Bottom = rct.Bottom - 6 + Y - yy
DrawFocusRect GetWindowDC(GetDesktopWindow), temprect
End If
End SubPrivate Sub Form_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)
DrawFocusRect GetWindowDC(GetDesktopWindow), temprect
Form1.Left = (temprect.Left - 6) * 15
Form1.Top = (temprect.Top - 24) * 15
CanDraw = False
End SubPrivate Sub Image1_Click()
Unload Me
End Sub
来这里看看,有很多原码