Replacing the TX Text Control Scrollbars
Replace the default TX Text Control scrollbars with custom graphical arrow buttons using the ScrollPosY property. This Visual Basic code sample manages the vertical scroll position with a configurable twip increment and synchronizes the internal position through the VScroll event.
Sometimes you have to replace the internal scrollbars with customized ones. Especially, if you need to adapt TX Text Control to the special look and feel of the current application.
Consider two graphical arrow buttons to scroll up and down. The following code shows how to realize such scrollbars. We can use the ScrollPosY property to specify a new scroll position.
The global variable x represents the current scroll position and the variable d is the amount of twips to scroll at once.
Public x as Long
Public d as Integer
Private Sub Command2_Click()
Dim curTextExt() As Long
curTextExt = TXTextControl1.GetTextExtent
If x < curTextExt(1) Then
x = x + d
TXTextControl1.ScrollPosY = x
End If
End Sub
Private Sub Command3_Click()
If x > 0 Then
x = x - d
TXTextControl1.ScrollPosY = x
End If
End Sub
Private Sub Form_Load()
x = 0
d = 500
End Sub
Private Sub TXTextControl1_VScroll()
x = TXTextControl1.ScrollPosY
End SubRelated Posts
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