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PreviewWindow.h
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PreviewWindow.h
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/* -LICENSE-START-
** Copyright (c) 2013 Blackmagic Design
**
** Permission is hereby granted, free of charge, to any person or organization
** obtaining a copy of the software and accompanying documentation covered by
** this license (the "Software") to use, reproduce, display, distribute,
** execute, and transmit the Software, and to prepare derivative works of the
** Software, and to permit third-parties to whom the Software is furnished to
** do so, all subject to the following:
**
** The copyright notices in the Software and this entire statement, including
** the above license grant, this restriction and the following disclaimer,
** must be included in all copies of the Software, in whole or in part, and
** all derivative works of the Software, unless such copies or derivative
** works are solely in the form of machine-executable object code generated by
** a source language processor.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
** DEALINGS IN THE SOFTWARE.
** -LICENSE-END-
*/
#pragma once
#include "DeckLinkAPI_h.h"
class PreviewWindow : public IDeckLinkScreenPreviewCallback
{
private:
IDeckLinkGLScreenPreviewHelper* m_deckLinkScreenPreviewHelper;
CStatic* m_previewBox;
CDC* m_previewBoxDC;
HGLRC m_openGLctx;
LONG m_refCount;
bool initOpenGL();
public:
PreviewWindow();
~PreviewWindow();
// Initialise members and OpenGL rendering context
bool init(CStatic* previewBox);
// IUnknown only needs a dummy implementation
virtual HRESULT STDMETHODCALLTYPE QueryInterface (REFIID iid, LPVOID *ppv) {return E_NOINTERFACE;}
virtual ULONG STDMETHODCALLTYPE AddRef () {return 1;}
virtual ULONG STDMETHODCALLTYPE Release () {return 1;}
// IDeckLinkScreenPreviewCallback
virtual HRESULT STDMETHODCALLTYPE DrawFrame(IDeckLinkVideoFrame* theFrame);
};