Problem Drag and Drop

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watamu16
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Problem Drag and Drop

#1 Post by watamu16 » 2018-05-02 15:31

Goodmorning,
I've a problem with the Drag and Drog to a folder.
I already tried re-registering the shell extension but it still doesn't work, I also reintalled the application.
This problem is from the last update of Windows 10 Pro 64bit (1803).

Thank you

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botg
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Re: Problem Drag and Drop

#2 Post by botg » 2018-05-02 15:53

It's a bug in Windows 10 1803. There's nothing we can do other than wait. Judging how fast Microsoft fixes similar bugs, we can be lucky if it gets fixed in November with the next big upgrade.

elion
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Re: Problem Drag and Drop

#3 Post by elion » 2018-05-10 08:21

Are you sure it is a Windows 1803 bug ?
Many applications do support drag&drop interface to explorer or other ole drag&drop compatible applications, and none of them seems to be broken.

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botg
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Re: Problem Drag and Drop

#4 Post by botg » 2018-05-10 10:11

My sentence did not contain any word indicating uncertainty about the nature of the bug.

elion
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Re: Problem Drag and Drop

#5 Post by elion » 2018-05-10 11:43

please, could you provide a link, or more information about this Windows bug ?

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botg
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Re: Problem Drag and Drop

#6 Post by botg » 2018-05-10 12:02

The CopyCallback method of the ICopyHook interface has a pszDestFile parameter. This method is called on shell extensions implementing this interface when a file is dropped in Explorer. In Windows 1803 this parameter is inexplicably empty. It had worked correctly ever since Windows XP.

elion
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Re: Problem Drag and Drop

#7 Post by elion » 2018-05-10 13:39

Thanks for the explanation.
Strange, as other softwares do not seem to be affected (including mine).

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botg
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Re: Problem Drag and Drop

#8 Post by botg » 2018-05-10 14:50

Does your software depend on data being in pszDestFile?

elion
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Re: Problem Drag and Drop

#9 Post by elion » 2018-05-10 17:09

I thought so, but after checking, no.
They depends on others ole drag&drop interfaces.

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