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srinivas
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 Posted: Tue Dec 20, 2005 5:15 am Post subject: Scroll Bar Style Problem |
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Hi all
In my applciation i am not using the auto scroll bars,
auto scroll property of the form is false
I am using the scroll bar controls(not auto scrollbars) for scrolling
but i am not style of this is different. how to get normal style
like i want big bar when small data is in the window
and when data incresed the bar size has to be decresed
Is there is any property set that i have to set?
thanks
srinivas
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Hans Galema
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| Posted: Tue Dec 20, 2005 9:19 am Post subject: Re: Scroll Bar Style Problem |
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srinivas wrote:
| Quote: | like i want big bar when small data is in the window
and when data incresed the bar size has to be decresed
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You mean that the size of the slider compared to the heigth of the
scrollbar reflects the part of the document that is actually visible ?
| Quote: | Is there is any property set that i have to set?
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Which version of bcb do you use ?
If the following propertise exist then set Max to the size of
the document and PageSize and LargeChange both to
the amount seen.
Hans.
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srinivas
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| Posted: Wed Dec 21, 2005 9:07 am Post subject: Re: Scroll Bar Style Problem |
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Hans Galema <notused (AT) notused (DOT) nl> wrote:
You mean that the size of the slider compared to the heigth of the
scrollbar reflects the part of the document that is actually visible ?
| Quote: | Which version of bcb do you use ?
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srinivas wrote
->I am using the Borland c++ builder 6.0 professional edition
->If the lines are more than window i am displaying scrollbar
and when lines are dicresing the slider size has to decrese
but in my case max value i am changing but slider is not
becoming smaller
If i am adding more lines the slider has to decrese
thanks
srinivas
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Hans Galema
Guest
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| Posted: Wed Dec 21, 2005 12:04 pm Post subject: Re: Scroll Bar Style Problem |
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srinivas wrote:
| Quote: | ->If the lines are more than window i am displaying scrollbar
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Yes. Ok. You make the TscrollBar Visible onlt when needed.
| Quote: | and when lines are dicresing the slider size has to decrese
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Don't understand. When the total amount of lines increases then
the slider has to decrease its size.
| Quote: | but in my case max value i am changing but slider is not
becoming smaller
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Do you mean Max ? How small should the slider become ? There
is a minimum size.
| Quote: | If i am adding more lines the slider has to decrese
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Yes. That is normal.
Do you have any questions ?
Hans.
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srinivas
Guest
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| Posted: Thu Dec 22, 2005 4:37 am Post subject: Re: Scroll Bar Style Problem |
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It is sorry to say i am not getting
read this i will explain whole scenario
1)example
There is text document is there it can handle(display) 10 lines
So up to 10 lines scroll bar is disabled
after that if u add the one more line slider is minimised
if u add one more line slider again decreses . it will goes on small
2)What i am doing is
I added one Scrollbar to form
now slicer is fixed size
even though i changed the Max property form 0 to 100 this slider size is not decresing
3) what i want is
If the Max value is 0 slider size is as big as possible
if Max value is 1 Slider size has to decrese
If i changed Max value to 100 the Slider has to become small
This is now not happening when i added the ScrollBar to form
-->> How can I change the Scroll bar's Slider Size?
Thanks a lot
srinivas
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Hans Galema
Guest
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| Posted: Thu Dec 22, 2005 8:35 am Post subject: Re: Scroll Bar Style Problem |
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srinivas wrote:
| Quote: | 1)example
There is text document is there it can handle(display) 10 lines
So up to 10 lines scroll bar is disabled
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You forgot to tell how many lines the document contains.
I already told you before:
Set Max to the number of lines in the document.
Set PageSize and LargeChange to 10.
| Quote: | after that if u add the one more line slider is minimised
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After adding a line, did you increase Max with 1 like it should ?
Of course the slider will get smaller then.
| Quote: | if u add one more line slider again decreses . it will goes on small
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Normal behaviour I would say.
| Quote: | 2)What i am doing is
I added one Scrollbar to form
now slicer is fixed size
even though i changed the Max property form 0 to 100 this slider size is not decresing
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Normal as PageSize and LargeChange will be 1. That causes for a minimum size.
| Quote: | 3) what i want is
If the Max value is 0 slider size is as big as possible
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Noncense. If there is no document then the visible part is zero
also.
| Quote: | if Max value is 1 Slider size has to decrese
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Never. 1 as value for Max is not very handy also.
| Quote: | If i changed Max value to 100 the Slider has to become small
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And what did it ?
| Quote: | -->> How can I change the Scroll bar's Slider Size?
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That I already told you twice.
To repeat. Place a TScrollBar on a TForm. (You will see that Max == 100
and PageSize and LargeChange are 1).
Now put two TButtons on the same TForm.
In the OnClickHandler of the first button put:
ScrollBar1->PageSize = 40;
ScrollBar1->LargeChange = ScrollBar1->PageSize;
And for the other:
ScrollBar1->Max = 200;
Try that and see how it works.
If that does not help please show your code.
Hans.
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