I'm using wxWidgets. It's clipboard mechanism extends the underlying platform's clipboard mechanism. The object is of a custom class. This class contains various datatypes ranging from ints,doubles,std::strings,char pointers to custom typedefs, structs and other classes. The objects i want to D&D are of different types. I will have a clipboard data object for each type as opposed to having an abstract implementation which is more complex. _______________________________________________ *Good judgement comes from Experience.* *Most of that comes from Bad Judgement.* _______________________________________________ * * 2011/11/28 Josh Handley <josh@bridgeinternationalacademies.com>
Are you using the Windows clipboard mechanism (OpenClipboard, SetClipboardData...)?
What does the object look like that you are putting on the clipboard? Is it always the same concrete type or do you have an abstract base class and you are putting different derived types on the clipboard? Is it a simple class with only value members or does it have arrays or pointers to other objects?
Josh
On 28/11/11 12:37 PM, skunkworks-request@lists.my.**co.ke<skunkworks-request@lists.my.co.ke>wrote:
Message: 3 Date: Mon, 28 Nov 2011 12:35:08 +0300 From: James Nzomo<kazikubwa@gmail.com> To: Skunkworks Mailing List<skunkworks@lists.my.co.ke**> Subject: Re: [Skunkworks] Size of an object in memory at runtime Message-ID: <CAChuKuewWX4DQzr3foEo7KU550vA**wzRrevtgVDMw2Tp6Qwz2GQ@mail.** gmail.com<CAChuKuewWX4DQzr3foEo7KU550vAwzRrevtgVDMw2Tp6Qwz2GQ@mail.gmail.com>
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What i'm trying to do is implement drag& drop clipboard opps for a custom data object (a custom class/object in this case) that works accross multiple instances of the same running application.
In order to do this efficiently, i have to allocate the exact amount of memory required to store the class instance as a D&D object.
The other alternatives would be to give a generous over estimate of the required memory or to use the objects JSON string as the D&D object. But the latter requires alot of coding overhead.
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