vb制作的屏保系统，由多张图片循环播放，如何在图片播放时加上一定的特效，比如百叶窗等等，就像PPT制作的

'这个拿去试一试,两个时钟,两个图片框,自己设定图片框2的大小,比如让它和窗体一样大

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'查一查PaintPicture的用法,就明白了

'去掉Picture2

Dim Pic_num As Long

Dim Pic_name() As String

Dim pic_star As Long

Dim p_width As Single

Dim p_height As Single

Dim bili_w As Single

Dim bili_h As Single

Dim v_mod As Long

Private Sub Form_Load()

Dim L_name As String

Pic_num = 0

ReDim Pic_name(Pic_num)

L_name = Dir(App.Path "\pic\*.JPG")

Do While L_name ""

ReDim Preserve Pic_name(Pic_num)

Pic_name(Pic_num) = L_name

Pic_num = Pic_num + 1

L_name = Dir

Loop

L_name = Dir(App.Path "\pic\*.BMP")

Do While L_name ""

ReDim Preserve Pic_name(Pic_num)

Pic_name(Pic_num) = L_name

Pic_num = Pic_num + 1

L_name = Dir

Loop

Picture1.AutoSize = True

Picture1.AutoRedraw = True

Picture1.Visible = False

' Me.AutoSize = False

Me.AutoRedraw = True

Me.Visible = True

Timer1.Interval = 10

Timer1.Enabled = False

Timer2.Interval = 50

Timer2.Enabled = False

If Pic_num 0 Then

Picture1.Picture = LoadPicture(App.Path "\pic\" Pic_name(0))

Me.PaintPicture Picture1.Picture, 0, 0, Me.ScaleWidth, Me.ScaleHeight, 0, 0, Picture1.ScaleWidth, Picture1.ScaleHeight

Timer1.Enabled = True

Timer1.Interval = 2000

Else

MsgBox ("没有图片显示！")

End If

End Sub

Private Sub Form_Resize()

Me.Width = Me.Width

Me.Height = Me.Width

Me.Top = 0

Me.Left = 0

End Sub

Private Sub Timer1_Timer()

Dim L_id As Long

Randomize

L_id = Int((Pic_num) * Rnd)

Picture1.Picture = LoadPicture(App.Path "\pic\" Pic_name(L_id))

bili_w = Picture1.ScaleWidth / Me.ScaleWidth

bili_h = Picture1.ScaleHeight / Me.ScaleHeight

p_width = Me.Width / 100

p_height = Me.Height / 100

pic_star = 0

Randomize

v_mod = Int(10 * Rnd)

'v_mod = 9'取消单引号并修改常数数可看单一效果

Timer1.Enabled = False

Timer2.Enabled = True

End Sub

Private Sub Timer2_Timer()

If pic_star 101 Then

pic_star = pic_star + 1

Select Case v_mod

Case 0

Me.PaintPicture Picture1.Picture, 0, 0, Me.Width, pic_star * p_height, 0, 0, Picture1.Width, bili_h * pic_star * p_height '从上向下

Case 1

Me.PaintPicture Picture1.Picture, 0, 0, pic_star * p_width, Me.Height, 0, 0, bili_w * pic_star * p_width, Picture1.Height '从左向右

Case 2

Me.PaintPicture Picture1.Picture, 0, 0, Me.Width, pic_star * p_height, 0, 0, Picture1.Width, Picture1.Height '压缩的从上向下

Case 3

Me.PaintPicture Picture1.Picture, 0, 0, pic_star * p_width, Me.Height, 0, 0, Picture1.Width, Picture1.Height '压缩的从左向右

Case 4

Me.PaintPicture Picture1.Picture, 0, 0, pic_star * p_width, pic_star * p_height, 0, 0, Picture1.Width, Picture1.Height '压缩的从左上向右下

Case 5

Me.PaintPicture Picture1.Picture, Me.Width - pic_star * p_width, Me.Height - pic_star * p_height, pic_star * p_width, pic_star * p_height, 0, 0, Picture1.Width, Picture1.Height '压缩的从右下向左上

Case 6

Me.PaintPicture Picture1.Picture, Me.Width / 2 - pic_star * p_width / 2, 0, pic_star * p_width / 2, Me.Height, 0, 0, Picture1.Width / 2, Picture1.Height '压缩的从中向左

Me.PaintPicture Picture1.Picture, Me.Width / 2, 0, pic_star * p_width, Me.Height, Picture1.Width / 2, 0, Picture1.Width, Picture1.Height '压缩的从中向右

Case 7

Me.PaintPicture Picture1.Picture, 0, Me.Height / 2 - pic_star * p_height / 2, Me.Width, pic_star * p_height / 2, 0, 0, Picture1.Width, Picture1.Height / 2 '压缩的从中向上

Me.PaintPicture Picture1.Picture, 0, Me.Height / 2, Me.Width, pic_star * p_height, 0, Picture1.Height / 2, Picture1.Width, Picture1.Height '压缩的从中向下

Case 8

Me.PaintPicture Picture1.Picture, Me.Width / 2 - pic_star * p_width / 2, Me.Height / 2 - pic_star * p_height / 2, pic_star * p_width / 2, pic_star * p_height / 2, 0, 0, Picture1.Width / 2, Picture1.Height / 2 '压缩的从中向左上

Me.PaintPicture Picture1.Picture, Me.Width / 2, Me.Height / 2, pic_star * p_width, pic_star * p_height, Picture1.Width / 2, Picture1.Height / 2, Picture1.Width, Picture1.Height '压缩的从中向右下

Me.PaintPicture Picture1.Picture, Me.Width / 2, Me.Height / 2 - pic_star * p_height / 2, pic_star * p_width / 2, pic_star * p_height / 2, Picture1.Width / 2, 0, Picture1.Width / 2, Picture1.Height / 2 '压缩的从中向右上

Me.PaintPicture Picture1.Picture, Me.Width / 2 - pic_star * p_width / 2, Me.Height / 2, pic_star * p_width / 2, pic_star * p_height / 2, 0, Picture1.Height / 2, Picture1.Width / 2, Picture1.Height / 2 '压缩的从中向左下

Case 9

For k = 0 To 9

Me.PaintPicture Picture1.Picture, 0, k * Me.Height / 10, Me.Width, 5 * pic_star * p_height / 10, 0, k * (Picture1.Height / 10), Picture1.Width, (Picture1.Height / 10) '水平百叶窗

Next

If pic_star = 21 Then

pic_star = 101

End If

End Select

Else

pic_star = 0

Timer1.Enabled = True

Me.PaintPicture Picture1.Picture, 0, 0, Me.ScaleWidth, Me.ScaleHeight, 0, 0, Picture1.ScaleWidth, Picture1.ScaleHeight

Timer2.Enabled = False

End If

End Sub

'这回做了9个,应该明白了吧,其实你第一回的5分也应该给选我,估计是你没明白用法

百叶窗有哪些特点？隔音百叶窗有隔音效果吗？

百叶窗隔断是很多家庭都会选择的隔断种类,既能够保证隔断的效果,而且能够保持光线的通透性。越来越多的家庭想选择百叶窗,但又对百叶窗的了解很少,例如百叶窗有哪些特点呢?百叶窗有隔音效果吗?下面我就为大家来解答百叶窗有哪些特点及百叶窗有隔音效果吗。

百叶窗隔断是很多家庭都会选择的隔断种类,既能够保证隔断的效果,而且能够保持光线的通透性。越来越多的家庭想选择百叶窗,但又对百叶窗的了解很少,例如百叶窗有哪些特点呢?百叶窗有隔音效果吗?下面我就为大家来解答百叶窗有哪些特点及百叶窗有隔音效果吗。

百叶窗有哪些特点:

1、铝合金美观节能,简洁利落?百叶窗可完全收起,窗外景色一览无余,窗户简约大方. 窗帘 则占用了窗户的部分空间,使得 房屋 的视觉窗户的宽度受到影响,显得繁琐。

2、保护隐私以叶片的凹凸方向来阻挡外界视线,采光的同时,阻挡了由上至下的外界视线夜间,叶片的凸面向室内的话,影子不会映显到室外,干净放心,清洁方便。平时只需以抹布擦拭即可,清洗时请用中性洗剂。不必担心退色,变色.防水型百叶窗还可以完全水洗。

3、冬暖夏凉采用了隔热性好的材料,有效保持室内温度,达到了节省能源的目的。简单自由角度调整,控制射入光线,以调整叶片角度来控制射入光线,可以任意调节叶片至适合的位置。

4、阻挡紫外线有效阻挡紫外线的射入,保护家具不受紫外线的影响而退色。百叶窗与窗帘相比,百叶窗那可以灵活调节的叶片具有窗帘所欠缺的功能。在遮阳方面,百叶窗除了可以抵挡紫外线辐射之外,还能调节室内光线;在通风方面,百叶窗固定式的安装以及厚实的质地,可以舒心地享受习习凉风而没有其它顾虑;窗帘的飘摆会室内生活时隐时现,百叶窗层层叠覆式的设计则保证了家居的私密性;此外,百叶窗完全封闭时就如多了一扇窗,能起到隔音隔热的作用。

隔音百叶窗有隔音效果吗:

1、百叶式消声器一般消声量为5～15dB(A),消声特性呈中高频性,百叶式消声器的消声性能主要决定于单片百叶的形式、百叶间距、安装角度及有效消声 长度 等因素。通风消声百叶结构,可消除噪声的窗式结构,根据使用环境需求采用不锈钢、铝合金、镀锌钢板等材料制作,加之特殊加工工艺,在任何气候条件下使用,且气流阻力小,消声量大,外形美观。

2、低频时,安装百叶窗以及百叶窗表面吸声处理的效果不明显。 频率 升高,百叶窗表面吸声处理后,隔声效果明显体现,且各个频率上安装带吸声的百叶窗的房间,内部声压场数值较低。总之,吸声后,百叶窗隔声效果明显提升,频率越高效果越明显。

通过上面我给大家介绍的百叶窗有哪些特点,隔音百叶窗隔音效果好吗。相信大家对百叶窗有了一定的了解,接下来如何选择,是不是要安装百叶窗,大家可以根据自己的喜好来决定。

关于用VB做文字动画效果的几个问题！！！！

用LABEL来做移动就是存在闪动的问题，你可以试试加个Frame1试试看，或者用picturebox看看！

实现百叶窗等特效如果不会API可以参考遮盖层的概念！

HI发不上去，放这里了，一个百叶窗的效果，自己存为FRM文件就行

VERSION 5.00

Begin VB.Form Form1

Caption = "Form1"

ClientHeight = 2250

ClientLeft = 60

ClientTop = 450

ClientWidth = 5295

LinkTopic = "Form1"

ScaleHeight = 2250

ScaleWidth = 5295

StartUpPosition = 3 '窗口缺省

Begin VB.PictureBox Picture1

Appearance = 0 'Flat

BackColor = H8000000D

ForeColor = H80000008

Height = 1095

Index = 5

Left = 3960

ScaleHeight = 1065

ScaleWidth = 705

TabIndex = 7

Top = 360

Width = 735

End

Begin VB.PictureBox Picture1

Appearance = 0 'Flat

BackColor = H8000000D

ForeColor = H80000008

Height = 1095

Index = 4

Left = 3240

ScaleHeight = 1065

ScaleWidth = 705

TabIndex = 6

Top = 360

Width = 735

End

Begin VB.PictureBox Picture1

Appearance = 0 'Flat

BackColor = H8000000D

ForeColor = H80000008

Height = 1095

Index = 3

Left = 2520

ScaleHeight = 1065

ScaleWidth = 705

TabIndex = 5

Top = 360

Width = 735

End

Begin VB.PictureBox Picture1

Appearance = 0 'Flat

BackColor = H8000000D

ForeColor = H80000008

Height = 1095

Index = 2

Left = 1800

ScaleHeight = 1065

ScaleWidth = 705

TabIndex = 4

Top = 360

Width = 735

End

Begin VB.PictureBox Picture1

Appearance = 0 'Flat

BackColor = H8000000D

ForeColor = H80000008

Height = 1095

Index = 1

Left = 1080

ScaleHeight = 1065

ScaleWidth = 705

TabIndex = 3

Top = 360

Width = 735

End

Begin VB.PictureBox Picture1

Appearance = 0 'Flat

BackColor = H8000000D

ForeColor = H80000008

Height = 1095

Index = 0

Left = 360

ScaleHeight = 1065

ScaleWidth = 705

TabIndex = 2

Top = 360

Width = 735

End

Begin VB.CommandButton Command1

Caption = "Command1"

Height = 495

Left = 1440

TabIndex = 1

Top = 1560

Width = 1815

End

Begin VB.TextBox Text1

Height = 1095

Left = 360

TabIndex = 0

Text = "Text1"

Top = 360

Width = 4335

End

End

Attribute VB_Name = "Form1"

Attribute VB_GlobalNameSpace = False

Attribute VB_Creatable = False

Attribute VB_PredeclaredId = True

Attribute VB_Exposed = False

Private Sub Command1_Click()

wid = Int(Picture1(0).Width / 50)

For i = 1 To 50

For n = 0 To Picture1.Count - 1

Picture1(n).Width = Picture1(n).Width - wid

Next n

Next i

For n = 0 To Picture1.Count - 1

Picture1(n).Visible = False

Next n

End Sub

Private Sub form_load()

For i = 0 To Picture1.Count - 1

Picture1(i).Width = Text1.Width / (Picture1.Count)

Picture1(i).Height = Text1.Height

Picture1(i).Top = Text1.Top

Picture1(i).Left = Text1.Left + i * Text1.Width / 6

Picture1(i).BackColor = H8000000D

Next i

End Sub

vb中用getpixel和setpixel（作业要求）编百叶窗时，点第一次有效果，再点第二次或其他都没变化，求改正！

我认为问题出在这里：

a = GetPixel(Picture1.hdc, X, Y)

b = SetPixel(Me.hdc, X, Y, a)

当你用一次循环，将这些点重设以后，再次来设置，就不会有什么变化了，我感觉应该加上一个恢复状态的语句。改变后，再恢复，然后再点才会有效果。

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