pls suggest Scrollbar Values

[chunk]

im using scrollbars in my form, i want to know what values i should keep for SmallChange and LargeChange to work it smooth.

[Hack]

That would depend on the size of your form and how much scrolling needs to be done.

How large is it?

[chunk]

i have a picturebox which will be scrolled, and picture box(S) height and width will be changed itself at run time

[Hack]

i have a picturebox which will be scrolled, and picture box(S) height and width will be changed itself at run time

Through your code or the Form's Resize event?

[chunk]

yes i have it on Resize event of Form

[LaVolpe]

I like the page method: LargeChange = picHolder.Height. picHolder is the container with the image inside of it. Each largechange event moves the image a "page" at a time. SmallChange can be LargeChange\10 and if value = zero, then make it one. This way smallchange is 1/10th of large change. But by making smallchange > 1, user must use the thumb to scroll single lines of the image.

An option to allow finer control if smallchange>1, may be to check for mouse down on the change event & if, say the ctrl key was down, revert to single pixel movements? Just thinking out loud & would require some more thought.

[chunk]

i want my scrollbars to work as our Internet Explorer(S) explorer works with Small and Large change. what values i should set of them on design time

[LaVolpe]

Honestly, I don't think there is a magic formula. Each app will have its own requirement - Word will move maybe paragraphs at a time while IE may move IEFrames at a time. I think this is a designer's choice -- your choice. Setting them at design time is not the best option in my opinion. Scrollbars should always be adjusted to what needs to be scrolled.

[chunk]

ok i will try your previous solution to set at Run time

[chunk]

Private Sub Form_Load()
Dim VSmallVal As Long, HSmallVal As Long
    VScroll1.LargeChange = PicBox.Height
    HScroll1.LargeChange = PicBox.Width
VSmallVal = VScroll1.LargeChange / 10
HSmallVal = HScroll1.LargeChange / 10
If VSmallVal = 0 Then
    VScroll1.SmallChange = 1
Else
    VScroll1.SmallChange = VSmallVal
End If

If HSmallVal = 0 Then
    HScroll1.SmallChange = 1
Else
    HScroll1.SmallChange = HSmallVal
End If

End Sub

i wrote this code. do you want me to make some changes in it?

[LaVolpe]

Chunk, it looks good -- do what feels right. Is the scrolling now more agreeable? If you are happy with it, that's all that counts really. Play with a small 32x32 image and a larger one, say 512x512 or larger.

[chunk]

sure i will try it