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The QClipboard class provides access to the window system clipboard. More...
#include <qclipboard.h>
Inherits QObject.
The clipboard offers a simple mechanism to copy and paste data between applications.
QClipboard supports the same data types that QDragObject does, and uses similar mechanisms. For advanced clipboard usage read the drag-and-drop documentation.
There is a single QClipboard object in an application, and you can access it using QApplication::clipboard().
Example:
QClipboard *cb = QApplication::clipboard(); // Copy text from the clipboard (paste) QString text = cb->text(QClipboard::Clipboard); if ( !text.isNull() ) qDebug( "The clipboard contains: " + text ); // Copy text into the clipboard cb->setText( "This text can be pasted by other programs", QClipboard::Clipboard );
QClipboard features some convenience functions to access common data types: setText() allows the exchange of Unicode text and setPixmap() and setImage() allows the exchange of QPixmaps and QImages between applications. The setData() function is the ultimate in flexibility: it allows you to add any QMimeSource into the clipboard. There are corresponding getters for each of these, e.g. text(), image() and pixmap().
You can clear the clipboard by calling clear().
See the multiclip example in the Qt Designer examples directory for an example of a multiplatform clipboard application that also demonstrates selection handling.
See also Environment Classes and Input/Output and Networking.
This enum type is used to control which part of the system clipboard is used by QClipboard::data(), QClipboard::setData() and related functions.
Note: Support for Selection is provided only on systems with a global mouse selection (e.g. X11).
See also QClipboard::supportsSelection().
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, this function clears the the global clipboard contents. If mode is QClipboard::Selection, this function clears the global mouse selection contents.
See also QClipboard::Mode and supportsSelection().
This function uses the QClipboard::clear() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the data is retrieved from the global clipboard. If mode is QClipboard::Selection, the data is retrieved from the global mouse selection.
See also setData().
This function uses the QClipboard::data() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
This signal is emitted when the clipboard data is changed.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the image is retrieved from the global clipboard. If mode is QClipboard::Selection, the image is retrieved from the global mouse selection.
See also setImage(), pixmap(), data(), and QImage::isNull().
This function uses the QClipboard::image() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the pixmap is retrieved from the global clipboard. If mode is QClipboard::Selection, the pixmap is retrieved from the global mouse selection.
See also setPixmap(), image(), data(), and QPixmap::convertFromImage().
This function uses the QClipboard::pixmap() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
This signal is emitted when the selection is changed. This only applies to windowing systems that support selections, e.g. X11. Windows doesn't support selections.
Use the QClipboard::data(), QClipboard::setData() and related functions which take a QClipboard::Mode argument.
Returns the selection mode.
See also setSelectionMode() and supportsSelection().
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the data is retrieved from the global clipboard. If mode is QClipboard::Selection, the data is retrieved from the global mouse selection.
The QDragObject subclasses are reasonable objects to put into the clipboard (but do not try to call QDragObject::drag() on the same object). Any QDragObject placed in the clipboard should have a parent of 0. Do not put QDragMoveEvent or QDropEvent subclasses in the clipboard, as they do not belong to the event handler which receives them.
The setText(), setImage() and setPixmap() functions are simpler wrappers for setting text, image and pixmap data respectively.
See also data().
This function uses the QClipboard::setData() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the image is stored in the global clipboard. If mode is QClipboard::Selection, the data is stored in the global mouse selection.
This is shorthand for:
setData( new QImageDrag(image), mode )
See also image(), setPixmap(), and setData().
This function uses the QClipboard::setImage() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the pixmap is stored in the global clipboard. If mode is QClipboard::Selection, the pixmap is stored in the global mouse selection.
See also pixmap(), setImage(), and setData().
This function uses the QClipboard::setPixmap() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
Use the QClipboard::data(), QClipboard::setData() and related functions which take a QClipboard::Mode argument.
Sets the clipboard selection mode. If enable is TRUE, then subsequent calls to QClipboard::setData() and other functions which put data into the clipboard will put the data into the mouse selection, otherwise the data will be put into the clipboard.
See also supportsSelection() and selectionModeEnabled().
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the text is stored in the global clipboard. If mode is QClipboard::Selection, the text is stored in the global mouse selection.
See also text() and setData().
Example: regexptester/regexptester.cpp.
This function uses the QClipboard::setText() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
Example: regexptester/regexptester.cpp.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the text is retrieved from the global clipboard. If mode is QClipboard::Selection, the text is retrieved from the global mouse selection.
See also setText(), data(), and QString::operator!().
Returns the clipboard text in subtype subtype, or a null string if the clipboard does not contain any text. If subtype is null, any subtype is acceptable, and subtype is set to the chosen subtype.
The mode argument is used to control which part of the system clipboard is used. If mode is QClipboard::Clipboard, the text is retrieved from the global clipboard. If mode is QClipboard::Selection, the text is retrieved from the global mouse selection.
Common values for subtype are "plain" and "html".
See also setText(), data(), and QString::operator!().
This function uses the QClipboard::text() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
Returns the clipboard text in subtype subtype, or a null string if the clipboard does not contain any text. This function uses the QClipboard::text() function which takes a QClipboard::Mode argument. The value of the mode argument is determined by the return value of selectionModeEnabled(). If selectionModeEnabled() returns TRUE, the mode argument is QClipboard::Selection, otherwise the mode argument is QClipboard::Clipboard.
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Copyright © 2007 Trolltech | Trademarks | Qt 3.3.8
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