X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dface61ccba162c922b25d18aca2ebc4e6f03312..acbd13a365fe2bd7ed6bafd19dc26775a256d499:/docs/latex/wx/clipbrd.tex?ds=sidebyside diff --git a/docs/latex/wx/clipbrd.tex b/docs/latex/wx/clipbrd.tex index c8cefc54b9..9c6bb2eb95 100644 --- a/docs/latex/wx/clipbrd.tex +++ b/docs/latex/wx/clipbrd.tex @@ -3,9 +3,10 @@ A class for manipulating the clipboard. Note that this is not compatible with the clipboard class from wxWindows 1.xx, which has the same name but a different implementation. -To use the clipboard, construct a wxClipboard object on the stack and -call \helpref{wxClipboard::Open}{wxclipboardopen}. If this operation returns TRUE, you -now own the clipboard. Call \helpref{wxClipboard::SetData}{wxclipboardsetdata} to put data +To use the clipboard, you call member functions of the global {\bf wxTheClipboard} object. + +Call \helpref{wxClipboard::Open}{wxclipboardopen} to get ownership of the clipboard. If this operation returns TRUE, you +now own the clipboard. Call \helpref{wxClipboard::AddData}{wxclipboardadddata} to put data on the clipboard (one or more times), or \helpref{wxClipboard::GetData}{wxclipboardgetdata} to retrieve data from the clipboard. Call \helpref{wxClipboard::Close}{wxclipboardclose} to close the clipboard and relinquish ownership. You should keep the clipboard open only momentarily. @@ -13,24 +14,25 @@ the clipboard and relinquish ownership. You should keep the clipboard open only For example: \begin{verbatim} - wxClipboard clipboard; - // Write some text to the clipboard - if (clipboard.Open()) + if (wxTheClipboard->Open()) { - wxTextDataObject object("Some text"); - clipboard.SetData(& object); - clipboard.Close(); + // This data objects are held by the clipboard, + // so do not delete them in the app. + wxTheClipboard->AddData( new wxTextDataObject("Some text") ); + wxTheClipboard->Close(); } // Read some text - if (clipboard.Open() && clipboard.IsSupportedFormat(wxDF_TEXT)) + if (wxTheClipboard->Open()) { - wxTextDataObject object; - clipboard.GetData(& object); - clipboard.Close(); - - wxMessageBox(object.GetText()); + wxTextDataObject data; + if (wxTheClipboard->IsSupported(data)) + { + wxTheClipboard->GetData(data); + wxMessageBox(data.GetText()); + } + wxTheClipboard->Close(); } \end{verbatim} @@ -56,6 +58,13 @@ Constructor. Destructor. +\membersection{wxClipboard::AddData}\label{wxclipboardadddata} + +\func{bool}{AddData}{\param{wxDataObject*}{ data}} + +Call this function to add a data object to the clipboard. This function can be called several times +to put different formats on the clipboard. + \membersection{wxClipboard::Clear}\label{wxclipboardclear} \func{void}{Clear}{\void} @@ -66,26 +75,20 @@ Clears the global clipboard object and the system's clipboard if possible. \func{bool}{Close}{\void} -Call this function to close the clipboard, having opened it with \helpref{wxClipboard::Close}{wxclipboardclose}. +Call this function to close the clipboard, having opened it with \helpref{wxClipboard::Open}{wxclipboardopen}. \membersection{wxClipboard::GetData}\label{wxclipboardgetdata} -\func{bool}{GetData}{\param{wxDataObject*}{ data}} +\func{bool}{GetData}{\param{wxDataObject&}{ data}} Call this function to fill {\it data} with data on the clipboard, if available in the required -format. - -\membersection{wxClipboard::IsSupportedFormat}\label{wxclipboardissupportedformat} - -\func{bool}{IsSupportedFormat}{\param{wxDataFormat}{ format}, \param{const wxString\&}{ id = ""}} +format. Returns TRUE on success. -Returns TRUE if the given format is available on the clipboard. +\membersection{wxClipboard::IsSupported}\label{wxclipboardissupported} -\wxheading{Parameters} +\func{bool}{IsSupported}{\param{wxDataObject&}{ data}} -\docparam{format}{The format. See \helpref{wxDataObject}{wxdataobject} for a list of formats.} - -\docparam{id}{ If {\it format} is wxDF\_PRIVATE, {\it id} is the identifier of the private data format.} +Returns TRUE if the format of the given data object is available on the clipboard. \membersection{wxClipboard::Open}\label{wxclipboardopen} @@ -97,10 +100,13 @@ and \helpref{wxClipboard::GetData}{wxclipboardgetdata}. Call \helpref{wxClipboard::Close}{wxclipboardclose} when you have finished with the clipboard. You should keep the clipboard open for only a very short time. +Returns TRUE on success. This should be tested (as in the sample shown above). + \membersection{wxClipboard::SetData}\label{wxclipboardsetdata} \func{bool}{SetData}{\param{wxDataObject*}{ data}} -Call this function to set a data object to the clipboard. This function can be called several times -to put different formats on the clipboard. +Call this function to set the data object to the clipboard. This function will +clear all previous contents in the clipboard, so calling it several times +does not make any sense.