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DragHelper blinking

Thread ID:





34212 Sep 6,2005 10:42 AM Sep 6,2005 02:01 PM Windows Forms 3
Tags: GridControl
Administrator [Syncfusion]
Asked On September 6, 2005 10:42 AM

Hi, I’m using Syncfusion.Windows.Forms.DragHelper to create my own drag effect and bitmap and there is a blinking effect happening when the mouse is on the bitmap. What I think is happening is when the cursor is on the bitmap of the DragHelper, the grid OnDragLeave is called (which clear the bitmap) and then the OnDragEnter is called (which draw the bitmap). Any tip would be helpful. Thank

Administrator [Syncfusion]
Replied On September 6, 2005 12:00 PM

Is there anyway you can draw the bitmap offset a little (to avoid the cursor position being over the bitmap)?

Administrator [Syncfusion]
Replied On September 6, 2005 01:55 PM

It wouldn’t be practical. I limited the height of the drag cursor (it’s for row) to 2 pixels to make it harder to create the blinking effect.

Administrator [Syncfusion]
Replied On September 6, 2005 02:01 PM

I minimized the height 1 pixel and the drag cursor move 1 pixel above or below the mouse. It’s better than seeing the blinking but still not 100%.


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