TRichView.com

Hi, I have the following problem:
In my program, I use the ScalerichviewEdit. In Windows, a scaling of 150% is configured.
The Scalerichview already contains the following Text: If I open the text with scaling and click at the end of the text, the cursor seems to change to the beginning. Additionally, I can not properly select the different parts of the text.

If I manually change the cursor to the end of the document and type in one letter the ScaleRichview is displayed white. After scrolling up or pressing the left arrow key, everything displays normally again. Do you have any suggestions regarding what might be causing this issue? If you need more information about the properties or settings, please let me know.

Thank you!

I cannot reproduce this problem.

Do you use the newest version of ScaleRichView?

Hi Sergey,
yes i use the newest version of Scalerichview.
i tried reproducing this effect using the Scalerichview "Action Test Demo". Unfortunately i could not reproduce it.
It seems like this is a problem caused by other code.

Hi Sergey,
After analyzing and debugging my Code I found a solution for my described issue.
If I use an invalidate instead of an update in the method TRVScroller.SetVPos everything is displayed correctly.
It seems that the difference between these two is that invalidate is handled with "post message" and update with "send message." Would it not be better to use invalidate instead to ensure that the scalerichview updates? Or could these changes create other problems?

Maybe you can reproduce this problem in a sample project?

In TSRichViewEdit, there is an invisible internal TRichViewEdit. When it is invalidated, it sends message to TSRichViewEdit to repaint the corresponding area.
But;
1) This hidden TRichViewEdit should not be scrolled (or, at least, redrawing of TSRichViewEdit should not rely on its scrolling)
2) In SetVPos, ScrollWindowEx invalidates newly shown area.

Hi Sergey,
You can go ahead and close this topic. I didn’t find a direct solution to the original problem, but I’ve switched to a different approach for scaling my ScaleRichEdit.
I’ve set the “Scaled” property of the editor form (the form that contains the ScaleRichEdit) to false, and now handle scaling via the Zoom factor of the ScaleRichEdit instead. It seems that manually adjusting and scaling the page width was causing the issue.

Thanks anyway!
Kind Regards
Tom