294e9a7aa0
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1922 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
117 lines
3.6 KiB
TeX
117 lines
3.6 KiB
TeX
\section{\class{wxClipboard}}\label{wxclipboard}
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A class for manipulating the clipboard. Note that this is not compatible with the
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clipboard class from wxWindows 1.xx, which has the same name but a different implementation.
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To use the clipboard, you call member functions of the global {\bf wxTheClipboard} object.
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Call \helpref{wxClipboard::Open}{wxclipboardopen} to get ownership of the clipboard. If this operation returns TRUE, you
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now own the clipboard. Call \helpref{wxClipboard::AddData}{wxclipboardadddata} to put data
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on the clipboard (one or more times), or \helpref{wxClipboard::GetData}{wxclipboardgetdata} to
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retrieve data from the clipboard. Call \helpref{wxClipboard::Close}{wxclipboardclose} to close
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the clipboard and relinquish ownership. You should keep the clipboard open only momentarily.
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For example:
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\begin{verbatim}
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// Write some text to the clipboard
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if (wxTheClipboard->Open())
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{
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// This data objects are held by the clipboard,
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// so do not delete them in the app.
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wxTheClipboard->AddData( new wxTextDataObject("Some text") );
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wxTheClipboard->Close();
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}
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// Read some text
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if (wxTheClipboard->Open())
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{
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wxTextDataObject data;
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if (wxTheClipboard->IsSupported(data))
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{
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wxTheClipboard->GetData(data);
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wxMessageBox(data.GetText());
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}
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wxTheClipboard->Close();
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}
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\end{verbatim}
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\wxheading{Derived from}
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/clipbrd.h>
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\wxheading{See also}
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\helpref{Drag and drop overview}{wxdndoverview}, \helpref{wxDataObject}{wxdataobject}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxClipboard::wxClipboard}
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\func{}{wxClipboard}{\void}
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Constructor.
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\membersection{wxClipboard::\destruct{wxClipboard}}
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\func{}{\destruct{wxClipboard}}{\void}
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Destructor.
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\membersection{wxClipboard::AddData}\label{wxclipboardadddata}
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\func{bool}{AddData}{\param{wxDataObject*}{ data}}
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Call this function to add a data object to the clipboard. This function can be called several times
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to put different formats on the clipboard.
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\membersection{wxClipboard::Clear}\label{wxclipboardclear}
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\func{void}{Clear}{\void}
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Clears the global clipboard object and the system's clipboard if possible.
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\membersection{wxClipboard::Close}\label{wxclipboardclose}
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\func{bool}{Close}{\void}
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Call this function to close the clipboard, having opened it with \helpref{wxClipboard::Open}{wxclipboardopen}.
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\membersection{wxClipboard::GetData}\label{wxclipboardgetdata}
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\func{bool}{GetData}{\param{wxDataObject\&}{ data}}
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Call this function to fill {\it data} with data on the clipboard, if available in the required
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format. Returns TRUE on success.
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\membersection{wxClipboard::IsSupported}\label{wxclipboardissupported}
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\func{bool}{IsSupported}{\param{wxDataObject\&}{ data}}
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Returns TRUE if the format of the given data object is available on the clipboard.
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\membersection{wxClipboard::Open}\label{wxclipboardopen}
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\func{bool}{Open}{\void}
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Call this function to open the clipboard before calling \helpref{wxClipboard::SetData}{wxclipboardsetdata}
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and \helpref{wxClipboard::GetData}{wxclipboardgetdata}.
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Call \helpref{wxClipboard::Close}{wxclipboardclose} when you have finished with the clipboard. You
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should keep the clipboard open for only a very short time.
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Returns TRUE on success. This should be tested (as in the sample shown above).
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\membersection{wxClipboard::SetData}\label{wxclipboardsetdata}
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\func{bool}{SetData}{\param{wxDataObject*}{ data}}
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Call this function to set the data object to the clipboard. This function will
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clear all previous contents in the clipboard, so calling it several times
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does not make any sense.
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