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Grid: questions on scrolling via mouse wheel
Message
From
22/05/2005 17:52:58
 
General information
Forum:
Visual FoxPro
Category:
Forms & Form designer
Miscellaneous
Thread ID:
01015603
Message ID:
01016628
Views:
12
Hi Sergey,

> There's nothing built in VFP to control this behavior. I'm not sure if it can be done with binding to Windows Messages in VFP9. The scroll rate depends on how far cursor is moved from the origin mark.

Thank you.

>> 2. I've noticed that in the auto-scroll behavior only works in my grids if the mouse is near the left edge of the grid. If I begin the auto-scroll process near the middle or right edge of the grid, the auto-scroll will "randomly" stop scrolling for no apparent reason. There seems to be no pattern as to where the scroll stops. The only thing I can think of is that the records where it does stop are wider than than the width of the grid and perhaps there's a link to VFP 9's new auto tooltips for grid cells with visually truncated values? Note that the auto-scroll doesn't stop at every wide record, but when it does stop, it stops on a wide record.

> Does direction pointer changes when it happens?

No. The auto-scrolling just stops at what appears to be a random location. Since I originally posted, I've had the auto-scrolling stop on both fully visible cells and cells that must be truncated when displayed in a column so my original theory that truncated cells and auto-tips may conflict is wrong.

I've also had the problem occur when scrolling near the left edge of grid, but with less frequency than when scrolling in the middle or near the right edge of a grid.

This is more an annoyance than a show stopper so I don't mean to abuse your help.

Thanks for again for your help,

Malcolm
Malcolm Greene
Brooks-Durham
mgreene@bdurham.com
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