[求助]滚动字幕求解!帮顶有分!

oo渣渣oo 2005-06-27 05:02:48

想在程序里面做个类似网页上滚动字幕的效果,
但是偶不想用时间控件+Label的方式,
因为在某些反应迟顿的机器上,这种方式会出现字幕跳动(移动不连续)的情况.

请教:有没有什么更加科学的方法啊,源代码或做好的Dll之类均可.
主要是不想让人觉得偶滴程序一点技术含量都没有!嘿嘿嘿.....

偶只要.NET的啊,别拿个C++的给偶,那玩意太高深,不会!看不懂!

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Snrmnm_sx 2005-06-28

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上面的程序在中文Win98，VB6下运行通过。

Snrmnm_sx 2005-06-28

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接上楼的！

Public Sub SelectFont(o As Object)

NewFont = CreateFontIndirect(m_LF)

OrgFont = SelectObject(o.hdc, NewFont)

End Sub

Public Sub FontOut(text$, o As Control, XX, YY)

Dim Throw As Long

Throw = TextOut(o.hdc, XX, YY, text$, Len(text$))

End Sub

Public Property Get Width() As Long

Width = m_LF.lfWidth

End Property

Public Property Let Width(ByVal W As Long)

m_LF.lfWidth = W

End Property

Public Property Get Height() As Long

Height = m_LF.lfHeight

End Property

Public Property Let Height(ByVal vNewValue As Long)

m_LF.lfHeight = vNewValue

End Property

Public Property Get Escapement() As Long

Escapement = m_LF.lfEscapement

End Property

Public Property Let Escapement(ByVal vNewValue As Long)

m_LF.lfEscapement = vNewValue

End Property

Public Property Get Weight() As Long

Weight = m_LF.lfWeight

End Property

Public Property Let Weight(ByVal vNewValue As Long)

m_LF.lfWeight = vNewValue

End Property

Public Property Get Italic() As Byte

Italic = m_LF.lfItalic

End Property

Public Property Let Italic(ByVal vNewValue As Byte)

m_LF.lfItalic = vNewValue

End Property

Public Property Get UnderLine() As Byte

UnderLine = m_LF.lfUnderline

End Property

Public Property Let UnderLine(ByVal vNewValue As Byte)

m_LF.lfUnderline = vNewValue

End Property

Public Property Get StrikeOut() As Byte

StrikeOut = m_LF.lfStrikeOut

End Property

Public Property Let StrikeOut(ByVal vNewValue As Byte)

m_LF.lfStrikeOut = vNewValue

End Property

Public Property Get FaceName() As String

FaceName = m_LF.lfFaceName

End Property

Public Property Let FaceName(ByVal vNewValue As String)

m_LF.lfFaceName = vNewValue

End Property

Private Sub Class_Initialize()

m_LF.lfHeight = 30

m_LF.lfWidth = 10

m_LF.lfEscapement = 0

m_LF.lfWeight = 400

m_LF.lfItalic = 0

m_LF.lfUnderline = 0

m_LF.lfStrikeOut = 0

m_LF.lfOutPrecision = 0

m_LF.lfClipPrecision = 0

m_LF.lfQuality = 0

m_LF.lfPitchAndFamily = 0

m_LF.lfCharSet = 0

m_LF.lfFaceName = "Arial" + Chr(0)

End Sub

在工程文件的Form1中加入一个PictureBox和一个CommandButton控件，然后在Form1的代码窗口中加入以下的代码：

Option Explicit

Dim AF As APIFont

Dim X, Y As Integer

Private Sub Command1_Click()

Dim i As Integer

Set AF = Nothing

Set AF = New APIFont

Picture2.Cls

For i = 0 To 3600 Step 360

AF.Escapement = i

AF.SelectFont Picture2

X = Picture2.ScaleWidth / 2

Y = Picture2.ScaleHeight / 2

‘在字符串后面要加入7个空格

AF.FontOut "电脑商情报第42期 ", Picture2, X, Y

AF.SelectOrg Picture2

Next i

End Sub

Private Sub Form_Load()

Picture2.ScaleMode = 3

End Sub

运行程序，点击Form上的Command1按钮，在窗口的图片框就会出现旋转的文本显示。
楼主都能旋转了，也就是能滚动！希望能帮上你的忙！

Snrmnm_sx 2005-06-28

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在VB中建立可旋转的文本特效

在VB中利用Windows的API函数可以实现很多的VB无法实现的扩展功能，下面的程序介绍的是如何通过调用Windows中的API函数实现文本旋转显示的特级效果的。

首先建立一个工程文件，然后选菜单中的Project | Add Class Module 加入一个新的类文件，并将这个类的Name属性改变为APIFont，然后在类的代码窗口中加入以下的代码：

Option Explicit

Private Declare Function SelectClipRgn Lib "gdi32" (ByVal hdc As Long, ByVal hRgn As _

Long) 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 SetTextColor Lib "gdi32" (ByVal hdc As Long, ByVal crColor As _

Long) As Long

Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long

Private Declare Function CreateFontIndirect Lib "gdi32" Alias "CreateFontIndirectA" _

(lpLogFont As LOGFONT) As Long

Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As _

Long) As Long

Private Declare Function TextOut Lib "gdi32" Alias "TextOutA" (ByVal hdc As Long, _

ByVal X As Long, ByVal Y As Long, ByVal lpString As String, ByVal nCount As _

Long) As Long

Private Declare Function SetTextAlign Lib "gdi32" (ByVal hdc As Long, ByVal wFlags _

As Long) As Long

Private Type RECT

Left As Long

Top As Long

Right As Long

Bottom As Long

End Type

Private Const TA_LEFT = 0

Private Const TA_RIGHT = 2

Private Const TA_CENTER = 6

Private Const TA_TOP = 0

Private Const TA_BOTTOM = 8

Private Const TA_BASELINE = 24

Private Type LOGFONT

lfHeight As Long

lfWidth As Long

lfEscapement As Long

lfOrientation As Long

lfWeight As Long

lfItalic As Byte

lfUnderline As Byte

lfStrikeOut As Byte

lfCharSet As Byte

lfOutPrecision As Byte

lfClipPrecision As Byte

lfQuality As Byte

lfPitchAndFamily As Byte

lfFaceName As String * 50

End Type

Private m_LF As LOGFONT

Private NewFont As Long

Private OrgFont As Long

Public Sub CharPlace(o As Object, txt$, X, Y)

Dim Throw As Long

Dim hregion As Long

Dim R As RECT

R.Left = X

R.Right = X + o.TextWidth(txt$) * 2

R.Top = Y

R.Bottom = Y + o.TextHeight(txt$) * 2

hregion = CreateRectRgn(R.Left, R.Top, R.Right, R.Bottom)

Throw = SelectClipRgn(o.hdc, hregion)

Throw = TextOut(o.hdc, X, Y, txt$, Len(txt$))

DeleteObject (hregion)

End Sub

Public Sub SetAlign(o As Object, Top, BaseLine, Bottom, Left, Center, Right)

Dim Vert As Long

Dim Horz As Long

If Top = True Then Vert = TA_TOP

If BaseLine = True Then Vert = TA_BASELINE

If Bottom = True Then Vert = TA_BOTTOM

If Left = True Then Horz = TA_LEFT

If Center = True Then Horz = TA_CENTER

If Right = True Then Horz = TA_RIGHT

SetTextAlign o.hdc, Vert Or Horz

End Sub

Public Sub setcolor(o As Object, CValue As Long)

Dim Throw As Long

Throw = SetTextColor(o.hdc, CValue)

End Sub

Public Sub SelectOrg(o As Object)

Dim Throw As Long

NewFont = SelectObject(o.hdc, OrgFont)

Throw = DeleteObject(NewFont)

End Sub