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Problem with sensitivity of a Draw widget (also in XROI.pro)
| Problem with sensitivity of a Draw widget (also in XROI.pro) [message #38437] |
Mon, 08 March 2004 06:05 |
helaha
Messages: 26
Registered: March 2004
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Junior Member |
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I'm working on an interactive widget with several buttons, text and a
draw widget for image display, scrolling and curser information. The
last thing I implemented was the curser information (with
keyword/motion_event). Now the curser position and the grey value of
the image are displayed if the curser moves over the image. But now
there emerged a problem I had not before. If the scrolling bar is
moved with the mouse and after the mouse button is released and if the
mouse thereafter is moved instantly over the image display, then the
scrolling event is not finished readily. The viewport is not scrolled
instantly. The viewport is scrolled step by step and the whole scroll
event need much more time (up to 10-20 seconds). It seems that the
curser motion events are handled before the scroll event has finished.
I used the sensitive keyword, but it didn't help.
Furthermore, XROI.pro does the same. I`m using IDL 6.0 with W2k
Anybody can help?
Thanks in advance,
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