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122 lines
4.3 KiB
122 lines
4.3 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef JUCE_ACTIVEXCONTROLCOMPONENT_H_INCLUDED
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#define JUCE_ACTIVEXCONTROLCOMPONENT_H_INCLUDED
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#if JUCE_WINDOWS || DOXYGEN
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//==============================================================================
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/**
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A Windows-specific class that can create and embed an ActiveX control inside
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itself.
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To use it, create one of these, put it in place and make sure it's visible in a
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window, then use createControl() to instantiate an ActiveX control. The control
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will then be moved and resized to follow the movements of this component.
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Of course, since the control is a heavyweight window, it'll obliterate any
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juce components that may overlap this component, but that's life.
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*/
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class JUCE_API ActiveXControlComponent : public Component
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{
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public:
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//==============================================================================
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/** Create an initially-empty container. */
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ActiveXControlComponent();
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/** Destructor. */
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~ActiveXControlComponent();
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/** Tries to create an ActiveX control and embed it in this peer.
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The peer controlIID is a pointer to an IID structure - it's treated
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as a void* because when including the Juce headers, you might not always
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have included windows.h first, in which case IID wouldn't be defined.
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e.g. @code
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const IID myIID = __uuidof (QTControl);
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myControlComp->createControl (&myIID);
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@endcode
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*/
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bool createControl (const void* controlIID);
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/** Deletes the ActiveX control, if one has been created.
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*/
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void deleteControl();
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/** Returns true if a control is currently in use. */
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bool isControlOpen() const noexcept { return control != nullptr; }
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/** Does a QueryInterface call on the embedded control object.
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This allows you to cast the control to whatever type of COM object you need.
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The iid parameter is a pointer to an IID structure - it's treated
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as a void* because when including the Juce headers, you might not always
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have included windows.h first, in which case IID wouldn't be defined, but
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you should just pass a pointer to an IID.
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e.g. @code
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const IID iid = __uuidof (IOleWindow);
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IOleWindow* oleWindow = (IOleWindow*) myControlComp->queryInterface (&iid);
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if (oleWindow != nullptr)
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{
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HWND hwnd;
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oleWindow->GetWindow (&hwnd);
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...
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oleWindow->Release();
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}
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@endcode
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*/
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void* queryInterface (const void* iid) const;
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/** Set this to false to stop mouse events being allowed through to the control.
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*/
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void setMouseEventsAllowed (bool eventsCanReachControl);
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/** Returns true if mouse events are allowed to get through to the control.
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*/
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bool areMouseEventsAllowed() const noexcept { return mouseEventsAllowed; }
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//==============================================================================
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/** @internal */
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void paint (Graphics&) override;
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private:
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class Pimpl;
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friend struct ContainerDeletePolicy<Pimpl>;
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ScopedPointer<Pimpl> control;
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bool mouseEventsAllowed;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ActiveXControlComponent)
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};
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#endif
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#endif // JUCE_ACTIVEXCONTROLCOMPONENT_H_INCLUDED
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