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The QWindowsMime class maps open-standard MIME types with Window Clipboard formats. More...
#include <qmime.h>
The drag-and-drop and clipboard facilities of Qt use the MIME standard. On X11, this maps trivially to the Xdnd protocol, but on Windows only some applications use MIME types to describe the clipboard formats, while others use arbitrary non-standardized naming conventions, or completely unnamed built-in formats of Windows.
By instantiating subclasses of QWindowsMime that provide conversions between Windows Clipboard and MIME formats, you can convert proprietary clipboard formats to MIME formats.
Qt has predefined support for the following Windows Clipboard formats:
An example usage of this class would be to map the Windows Metafile clipboard format (CF_METAFILEPICT) to and from the MIME type "image/x-wmf". This conversion might simply be adding or removing a header, or even just passing on the data. See the Drag-and-Drop documentation for more information on choosing and definition MIME types.
Returns TRUE if the convertor can convert (both ways) between mime and cf.
All subclasses must reimplement this purely virtual function.
Returns the Windows Clipboard formats supported by this convertor that is ordinarily at index. So cf(0) returns the first Windows Clipboard format supported, cf(countCf()-1) returns the last. Return values out of range are undefined.
All subclasses must reimplement this purely virtual function.
Returns the Windows Clipboard type used for MIME type mime, or 0 if this convertor does not support mime.
All subclasses must reimplement this purely virtual function.
Returns data converted from MIME type mime to Windows Clipboard format cf.
Note that Windows Clipboard formats must all be self-terminating. The return value may contain trailing data.
All subclasses must reimplement this purely virtual function.
Returns data converted from Windows Clipboard format cf to MIME type mime.
Note that Windows Clipboard formats must all be self-terminating. The input data may contain trailing data.
All subclasses must reimplement this purely virtual function.
Returns a name for the convertor.
All subclasses must reimplement this purely virtual function.
Returns the number of Windows Clipboard formats supported by this convertor.
All subclasses must reimplement this purely virtual function.
Returns the MIME type used for Windows Clipboard format cf, or 0 if this convertor does not support cf.
All subclasses must reimplement this purely virtual function.
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Copyright © 2001 Trolltech | Trademarks | Qt version 3.0.0-beta2
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