T O P I C R E V I E W |
yogiyang |
Posted - Mar 30 2020 : 00:56:31 Hello,
I have a need where I need to change the color and side of automatic scrollbars that are show in ImageEnView.
Can we do this?
If not then how to replace with a scrollbar control?
TIA
Yogi Yang |
9 L A T E S T R E P L I E S (Newest First) |
yogiyang |
Posted - Apr 20 2020 : 00:21:07 Hello Nigel,
Thanks I will go through the example.
TIA
Yogi Yang |
xequte |
Posted - Apr 19 2020 : 16:36:57 Hi Yogi
Here you go:
www.ImageEn.com/files/Other/IECustomScrollBars.zip
Nigel Xequte Software www.imageen.com
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yogiyang |
Posted - Apr 19 2020 : 07:27:56 Hello Nigel,
After trying everything that I could I am not able get my scrollbars to work in ImageEn.
Can you please guide me as to where I am making mistake.
I am attaching a sample project here.
TIA
attach/yogiyang/202041972745_IEScrollBars.zip 57.99 KB
Yogi Yang |
xequte |
Posted - Apr 01 2020 : 15:34:25 Hi Yogi
Do you mean the PageSize? I've added it to the example above.
Nigel Xequte Software www.imageen.com
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yogiyang |
Posted - Apr 01 2020 : 01:03:48 Hello Nigel,
Thanks for the sample code. Though I am not able to get it to work but am trying...
In case of ImageEnView the scroll thumb size of the scrollbar enlarges or shrinks as we zoom out or zoom in. How is this possible if we keep the HorzScrollbar1.Max at 65536?
TIA
Yogi Yang |
xequte |
Posted - Mar 30 2020 : 18:12:42 Also, use the OnViewChange event to update it.
Nigel Xequte Software www.imageen.com
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xequte |
Posted - Mar 30 2020 : 18:11:53 Hi Yogi
You can do it the same as ImageEnView.
Scrollbar has range 0 - 65536...
HorzScrollbar1.Min := 0; HorzScrollbar1.Max := 65536;
To get position for horz scrollbar...
ImageEnView1.GetMaxViewXY( maxX, maxY ); valsX := ( maxX + ImageEnView1.ClientWidth ) / 65536; // Note: subtract ruler width if you have visible rulers HorzScrollbar1.PageSize := trunc( ImageEnView1.ClientWidth / valsX ); HorzScrollbar1.Position := trunc( ImageEnView1.ViewX / valsX );
Nigel Xequte Software www.imageen.com
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yogiyang |
Posted - Mar 30 2020 : 07:19:10 Hello Nigel,
I know that but how do I get the max scroll range because that would depend on the level of zoom?
Another thing the Zoon In/Out only fires when ten user zooms not when it is done with code like calling Fit. How to overcome this tiny problem?
TIA
Yogi Yang |
xequte |
Posted - Mar 30 2020 : 05:50:00 Hi Yogi
You can use VCL theming, other than that you would need to set Scrollbars to None and implement your own scrollbars (i.e. setting ViewX/ViewY).
Nigel Xequte Software www.imageen.com
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