Option Explicit Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long Private Declare Function SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long Const WS_EX_LAYERED = &H80000 Const GWL_EXSTYLE = (-20) Const LWA_ALPHA = &H2 Const LWA_COLORKEY = &H1 Dim sty As Long Dim cs As IntegerPrivate Sub Form_Load() sty = GetWindowLong(Me.hwnd, GWL_EXSTYLE) sty = sty Or WS_EX_LAYERED SetWindowLong Me.hwnd, GWL_EXSTYLE, sty SetLayeredWindowAttributes Me.hwnd, 0, 192, LWA_ALPHA cs = 255 End SubPrivate Sub Timer1_Timer() cs = cs - 5 SetLayeredWindowAttributes Me.hwnd, 0, cs, LWA_ALPHA If cs <= 15 Then cs = 255 End If End Sub请观看Timer控件中cs改变使窗体透明效果会发生变化.
说明:表单一个Form1,图片框一个PicShape,在图片框内放置任何图片时,系统将使用图片框中的图片为窗体,并且屏蔽图片中白色部分,从而建立特效的变形窗体。这代码来自VB编程技巧10000例(源江科技),供参考: Option Explicit Dim MoveTrue As Boolean, OldX As Long, OldY As Long Private Type BITMAP bmType As Long bmWidth As Long bmHeight As Long bmWidthBytes As Long bmPlanes As Integer bmBitsPixel As Integer bmBits As Long End Type Private Declare Function GetBitmapBits Lib "gdi32" (ByVal hBitmap As Long, ByVal dwCount As Long, lpBits As Any) As Long Private Declare Function GetObject Lib "gdi32" Alias "GetObjectA" (ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) As Long Private Declare Function CreateRectRgn Lib "gdi32" (ByVal x1 As Long, ByVal y1 As Long, ByVal X2 As Long, ByVal Y2 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 Long) As Long Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
Private Sub FitToPicture() Const RGN_OR = 2 Dim border_width As Single Dim title_height As Single Dim bm As BITMAP Dim bytes() As Byte Dim ints() As Integer Dim longs() As Long Dim R As Integer Dim C As Integer Dim start_c As Integer Dim stop_c As Integer Dim x0 As Long Dim y0 As Long Dim combined_rgn As Long Dim new_rgn As Long Dim offset As Integer Dim colourDepth As Integer ScaleMode = vbPixels PicShape.ScaleMode = vbPixels PicShape.AutoRedraw = True PicShape.Picture = PicShape.Image ' 获取窗体的边框大小 border_width = (ScaleX(Width, vbTwips, vbPixels) - ScaleWidth) / 2 title_height = ScaleX(Height, vbTwips, vbPixels) - border_width - ScaleHeight ' 获取图片大小 x0 = PicShape.Left + border_width y0 = PicShape.Top + title_height '给出图片信息 GetObject PicShape.Image, Len(bm), bm Select Case bm.bmBitsPixel Case 15, 16: 'MsgBox _ "图片框中图片的颜色大高。",vbExclamation + vbOKOnly colourDepth = 2 ' 分配空格给图片. ReDim ints(0 To bm.bmWidthBytes \ 2 - 1, 0 To bm.bmHeight - 1) ' 给出图片表面数据 GetBitmapBits PicShape.Image, bm.bmHeight * bm.bmWidthBytes, ints(0, 0) ' 建立表单区域 For R = 0 To bm.bmHeight - 2 C = 0 Do While C < bm.bmWidth start_c = 0 stop_c = 0 ' 查找白色区域,屏蔽 Do While C < bm.bmWidth If (ints(C, R) And &H7FFF) <> &H7FFF Then Exit Do C = C + 1 Loop start_c = C Do While C < bm.bmWidth If (ints(C, R) And &H7FFF) = &H7FFF Then Exit Do C = C + 1 Loop stop_c = C If start_c < bm.bmWidth Then If stop_c >= bm.bmWidth Then stop_c = bm.bmWidth - 1 new_rgn = CreateRectRgn(start_c + x0, R + y0, stop_c + x0, R + y0 + 1) If combined_rgn = 0 Then combined_rgn = new_rgn Else CombineRgn combined_rgn, combined_rgn, new_rgn, RGN_OR DeleteObject new_rgn End If End If Loop Next R Case 24: colourDepth = 3 ReDim bytes(0 To bm.bmWidthBytes - 1, 0 To bm.bmHeight - 1) GetBitmapBits PicShape.Image, bm.bmHeight * bm.bmWidthBytes, bytes(0, 0) For R = 0 To bm.bmHeight - 2 ' Create a region for this row. C = 0 Do While C < bm.bmWidth start_c = 0 stop_c = 0 offset = C * colourDepth Do While C < bm.bmWidth If bytes(offset, R) <> 255 Or _ bytes(offset + 1, R) <> 255 Or _ bytes(offset + 2, R) <> 255 Then Exit Do C = C + 1 offset = offset + colourDepth Loop start_c = C Do While C < bm.bmWidth If bytes(offset, R) = 255 And _ bytes(offset + 1, R) = 255 And _ bytes(offset + 2, R) = 255 _ Then Exit Do C = C + 1 offset = offset + colourDepth Loop stop_c = C If start_c < bm.bmWidth Then If stop_c >= bm.bmWidth Then stop_c = bm.bmWidth - 1 ' 建立区域 new_rgn = CreateRectRgn(start_c + x0, R + y0, stop_c + x0, R + y0 + 1) If combined_rgn = 0 Then combined_rgn = new_rgn Else CombineRgn combined_rgn, combined_rgn, new_rgn, RGN_OR DeleteObject new_rgn End If End If Loop Next R Case 32: colourDepth = 4 ReDim longs(0 To bm.bmWidthBytes \ 4 - 1, 0 To bm.bmHeight - 1) GetBitmapBits PicShape.Image, bm.bmHeight * bm.bmWidthBytes, longs(0, 0) For R = 0 To bm.bmHeight - 2 C = 0 Do While C < bm.bmWidth start_c = 0 stop_c = 0 Do While C < bm.bmWidth If (longs(C, R) And &HFFFFFF) <> &HFFFFFF Then Exit Do C = C + 1 Loop start_c = C Do While C < bm.bmWidth If (longs(C, R) And &HFFFFFF) = &HFFFFFF Then Exit Do C = C + 1 Loop stop_c = C If start_c < bm.bmWidth Then If stop_c >= bm.bmWidth Then stop_c = bm.bmWidth - 1 new_rgn = CreateRectRgn(start_c + x0, R + y0, stop_c + x0, R + y0 + 1) If combined_rgn = 0 Then combined_rgn = new_rgn Else CombineRgn combined_rgn, combined_rgn, new_rgn, RGN_OR DeleteObject new_rgn End If End If Loop Next R Case Else MsgBox "对不起,程序必须在 16位, 24-位 或 32-位 颜色下。", _ vbExclamation + vbOKOnly Exit Sub End Select ' 设置表单外观为建立区域 SetWindowRgn hwnd, combined_rgn, True DeleteObject combined_rgn End Sub
Private Sub Form_Load() Move (Screen.Width - Width) / 2, (Screen.Height - Height) / 2 FitToPicture End Sub
Private Sub picShape_DblClick() Unload Me End Sub
Private Sub picshape_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single) MoveTrue = True OldX = x: OldY = y End Sub
Private Sub picshape_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single) If MoveTrue = True Then Form1.Left = Form1.Left + x - OldX Form1.Top = Form1.Top + y - OldY End If End Sub
Private Sub picshape_MouseUp(Button As Integer, Shift As Integer, x As Single, y As Single) MoveTrue = False End Sub '下面的方法仅适用于Windows 2000/XP,因为SetLayeredWindowAttributes函数在其他系统中不支持。) Public Sub NTSetfrmRgn(PicBox As PictureBox, frm As Form) '------------------------------------------------- ' 窗体形状及透明度 ' Color (取得0,0处象素的颜色,即要裁减的区域的颜色 ' SetLayeredWindowAttributes 设置透明度及窗体形状 '------------------------------------------------- Dim WindowExs As Long, Color As Long frm.Picture = PicBox.Picture Color = GetPixel(PicBox.hDC, 0, 0) WindowExs = GetWindowLong(frm.hwnd, GWL_EXSTYLE) WindowExs = WindowExs Or WS_EX_LAYERED SetWindowLong frm.hwnd, GWL_EXSTYLE, WindowExs SetLayeredWindowAttributes frm.hwnd, Color, 180, LWA_COLORKEY Or LWA_ALPHA End Sub
代码来自VB编程技巧10000例(源江科技),供参考:Option Explicit Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long Private Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long Const GWL_EXSTYLE = (-20) Const WS_EX_TRANSPARENT = &H20& Dim sj As BooleanPrivate Sub Command3_Click() Form1.Show End SubPrivate Sub Form_Activate() SetWindowLong hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT End SubPrivate Sub Form_Load() SetWindowLong hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT End Sub Private Sub Command1_Click() Print "Hello" End Sub
Private Sub Command2_Click() End End SubPrivate Sub Form_Click() If sj Then Me.WindowState = 2 Else Me.WindowState = 0 End If sj = Not sj End Sub
picture透明做什么,你让图片透明?不知道你的picture里放的是什么
Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long
Const WS_EX_LAYERED = &H80000
Const GWL_EXSTYLE = (-20)
Const LWA_ALPHA = &H2
Const LWA_COLORKEY = &H1
Dim sty As Long
Dim cs As IntegerPrivate Sub Form_Load()
sty = GetWindowLong(Me.hwnd, GWL_EXSTYLE)
sty = sty Or WS_EX_LAYERED
SetWindowLong Me.hwnd, GWL_EXSTYLE, sty
SetLayeredWindowAttributes Me.hwnd, 0, 192, LWA_ALPHA
cs = 255
End SubPrivate Sub Timer1_Timer()
cs = cs - 5
SetLayeredWindowAttributes Me.hwnd, 0, cs, LWA_ALPHA
If cs <= 15 Then
cs = 255
End If
End Sub请观看Timer控件中cs改变使窗体透明效果会发生变化.
Option Explicit
Dim MoveTrue As Boolean, OldX As Long, OldY As Long
Private Type BITMAP
bmType As Long
bmWidth As Long
bmHeight As Long
bmWidthBytes As Long
bmPlanes As Integer
bmBitsPixel As Integer
bmBits As Long
End Type
Private Declare Function GetBitmapBits Lib "gdi32" (ByVal hBitmap As Long, ByVal dwCount As Long, lpBits As Any) As Long
Private Declare Function GetObject Lib "gdi32" Alias "GetObjectA" (ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) As Long
Private Declare Function CreateRectRgn Lib "gdi32" (ByVal x1 As Long, ByVal y1 As Long, ByVal X2 As Long, ByVal Y2 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 Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
Private Sub FitToPicture()
Const RGN_OR = 2
Dim border_width As Single
Dim title_height As Single
Dim bm As BITMAP
Dim bytes() As Byte
Dim ints() As Integer
Dim longs() As Long
Dim R As Integer
Dim C As Integer
Dim start_c As Integer
Dim stop_c As Integer
Dim x0 As Long
Dim y0 As Long
Dim combined_rgn As Long
Dim new_rgn As Long
Dim offset As Integer
Dim colourDepth As Integer
ScaleMode = vbPixels
PicShape.ScaleMode = vbPixels
PicShape.AutoRedraw = True
PicShape.Picture = PicShape.Image
' 获取窗体的边框大小
border_width = (ScaleX(Width, vbTwips, vbPixels) - ScaleWidth) / 2
title_height = ScaleX(Height, vbTwips, vbPixels) - border_width - ScaleHeight
' 获取图片大小
x0 = PicShape.Left + border_width
y0 = PicShape.Top + title_height
'给出图片信息
GetObject PicShape.Image, Len(bm), bm
Select Case bm.bmBitsPixel
Case 15, 16:
'MsgBox _
"图片框中图片的颜色大高。",vbExclamation + vbOKOnly
colourDepth = 2
' 分配空格给图片.
ReDim ints(0 To bm.bmWidthBytes \ 2 - 1, 0 To bm.bmHeight - 1)
' 给出图片表面数据
GetBitmapBits PicShape.Image, bm.bmHeight * bm.bmWidthBytes, ints(0, 0)
' 建立表单区域
For R = 0 To bm.bmHeight - 2
C = 0
Do While C < bm.bmWidth
start_c = 0
stop_c = 0
' 查找白色区域,屏蔽
Do While C < bm.bmWidth
If (ints(C, R) And &H7FFF) <> &H7FFF Then Exit Do
C = C + 1
Loop
start_c = C
Do While C < bm.bmWidth
If (ints(C, R) And &H7FFF) = &H7FFF Then Exit Do
C = C + 1
Loop
stop_c = C
If start_c < bm.bmWidth Then
If stop_c >= bm.bmWidth Then stop_c = bm.bmWidth - 1
new_rgn = CreateRectRgn(start_c + x0, R + y0, stop_c + x0, R + y0 + 1)
If combined_rgn = 0 Then
combined_rgn = new_rgn
Else
CombineRgn combined_rgn, combined_rgn, new_rgn, RGN_OR
DeleteObject new_rgn
End If
End If
Loop
Next R
Case 24:
colourDepth = 3
ReDim bytes(0 To bm.bmWidthBytes - 1, 0 To bm.bmHeight - 1)
GetBitmapBits PicShape.Image, bm.bmHeight * bm.bmWidthBytes, bytes(0, 0)
For R = 0 To bm.bmHeight - 2
' Create a region for this row.
C = 0
Do While C < bm.bmWidth
start_c = 0
stop_c = 0
offset = C * colourDepth
Do While C < bm.bmWidth
If bytes(offset, R) <> 255 Or _
bytes(offset + 1, R) <> 255 Or _
bytes(offset + 2, R) <> 255 Then Exit Do
C = C + 1
offset = offset + colourDepth
Loop
start_c = C
Do While C < bm.bmWidth
If bytes(offset, R) = 255 And _
bytes(offset + 1, R) = 255 And _
bytes(offset + 2, R) = 255 _
Then Exit Do
C = C + 1
offset = offset + colourDepth
Loop
stop_c = C
If start_c < bm.bmWidth Then
If stop_c >= bm.bmWidth Then stop_c = bm.bmWidth - 1
' 建立区域
new_rgn = CreateRectRgn(start_c + x0, R + y0, stop_c + x0, R + y0 + 1)
If combined_rgn = 0 Then
combined_rgn = new_rgn
Else
CombineRgn combined_rgn, combined_rgn, new_rgn, RGN_OR
DeleteObject new_rgn
End If
End If
Loop
Next R
Case 32:
colourDepth = 4
ReDim longs(0 To bm.bmWidthBytes \ 4 - 1, 0 To bm.bmHeight - 1)
GetBitmapBits PicShape.Image, bm.bmHeight * bm.bmWidthBytes, longs(0, 0)
For R = 0 To bm.bmHeight - 2
C = 0
Do While C < bm.bmWidth
start_c = 0
stop_c = 0
Do While C < bm.bmWidth
If (longs(C, R) And &HFFFFFF) <> &HFFFFFF Then Exit Do
C = C + 1
Loop
start_c = C
Do While C < bm.bmWidth
If (longs(C, R) And &HFFFFFF) = &HFFFFFF Then Exit Do
C = C + 1
Loop
stop_c = C
If start_c < bm.bmWidth Then
If stop_c >= bm.bmWidth Then stop_c = bm.bmWidth - 1
new_rgn = CreateRectRgn(start_c + x0, R + y0, stop_c + x0, R + y0 + 1)
If combined_rgn = 0 Then
combined_rgn = new_rgn
Else
CombineRgn combined_rgn, combined_rgn, new_rgn, RGN_OR
DeleteObject new_rgn
End If
End If
Loop
Next R
Case Else
MsgBox "对不起,程序必须在 16位, 24-位 或 32-位 颜色下。", _
vbExclamation + vbOKOnly
Exit Sub
End Select
' 设置表单外观为建立区域
SetWindowRgn hwnd, combined_rgn, True
DeleteObject combined_rgn
End Sub
Private Sub Form_Load()
Move (Screen.Width - Width) / 2, (Screen.Height - Height) / 2
FitToPicture
End Sub
Private Sub picShape_DblClick()
Unload Me
End Sub
Private Sub picshape_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
MoveTrue = True
OldX = x: OldY = y
End Sub
Private Sub picshape_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single)
If MoveTrue = True Then
Form1.Left = Form1.Left + x - OldX
Form1.Top = Form1.Top + y - OldY
End If
End Sub
Private Sub picshape_MouseUp(Button As Integer, Shift As Integer, x As Single, y As Single)
MoveTrue = False
End Sub '下面的方法仅适用于Windows 2000/XP,因为SetLayeredWindowAttributes函数在其他系统中不支持。)
Public Sub NTSetfrmRgn(PicBox As PictureBox, frm As Form)
'-------------------------------------------------
' 窗体形状及透明度
' Color (取得0,0处象素的颜色,即要裁减的区域的颜色
' SetLayeredWindowAttributes 设置透明度及窗体形状
'-------------------------------------------------
Dim WindowExs As Long, Color As Long
frm.Picture = PicBox.Picture
Color = GetPixel(PicBox.hDC, 0, 0)
WindowExs = GetWindowLong(frm.hwnd, GWL_EXSTYLE)
WindowExs = WindowExs Or WS_EX_LAYERED
SetWindowLong frm.hwnd, GWL_EXSTYLE, WindowExs
SetLayeredWindowAttributes frm.hwnd, Color, 180, LWA_COLORKEY Or LWA_ALPHA
End Sub
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long
Const GWL_EXSTYLE = (-20)
Const WS_EX_TRANSPARENT = &H20&
Dim sj As BooleanPrivate Sub Command3_Click()
Form1.Show
End SubPrivate Sub Form_Activate()
SetWindowLong hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT
End SubPrivate Sub Form_Load()
SetWindowLong hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT
End Sub
Private Sub Command1_Click()
Print "Hello"
End Sub
Private Sub Command2_Click()
End
End SubPrivate Sub Form_Click()
If sj Then
Me.WindowState = 2
Else
Me.WindowState = 0
End If
sj = Not sj
End Sub
遇到swf(应该是Flash控件吧)的地方就不处理其他地方都是透明。
定义:
Declare Function SetLayeredWindowAttributes Lib "user32.dll" (ByVal hwnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As LongWS_EX_LAYERED = 0x80000;
LWA_ALPHA = 0x2;
LWA_COLORKEY=0x1
其中dwFlags有LWA_ALPHA和LWA_COLORKEY
LWA_ALPHA被设置的话,通过bAlpha决定透明度.
LWA_COLORKEY被设置的话,则指定被透明掉的颜色为crKey,其他颜色则正常显示因此只要设置LWA_COLORKEY和crKey,并且将窗体背景色和控件颜色设为 不同的颜色,就可以做到楼主的要求,经实际测试可行