maindlg.h

CE上用C++写的可以播放GIF动画的例子

// MainDlg.h : interface of the CMainDlg class
//
/////////////////////////////////////////////////////////////////////////////

#pragma once
#include "GIFShow.h"
CGIFShow *pGIFInst;

class CMainDlg : public CDialogImpl<CMainDlg>, public CUpdateUI<CMainDlg>,
		public CMessageFilter, public CIdleHandler
{
public:
	enum { IDD = IDD_MAINDLG };

	virtual BOOL PreTranslateMessage(MSG* pMsg)
	{
		return CWindow::IsDialogMessage(pMsg);
	}

	virtual BOOL OnIdle()
	{
		return FALSE;
	}

	BEGIN_UPDATE_UI_MAP(CMainDlg)
	END_UPDATE_UI_MAP()

	BEGIN_MSG_MAP(CMainDlg)
		MESSAGE_HANDLER(WM_INITDIALOG, OnInitDialog)
		MESSAGE_HANDLER(WM_PAINT, OnPaint)
		COMMAND_ID_HANDLER(ID_APP_ABOUT, OnAppAbout)
		COMMAND_ID_HANDLER(IDOK, OnOK)
		COMMAND_ID_HANDLER(IDCANCEL, OnCancel)
		COMMAND_ID_HANDLER(ID_EXIT, OnCancel)
		COMMAND_ID_HANDLER(ID_OPTION_SHOWGIF, OnShoweGif)
		COMMAND_ID_HANDLER(ID_OPTION_HIDEGIF, OnHideGif)
		COMMAND_ID_HANDLER(ID_OPTION_DESTROYGIF, OnDestroyGif)
		
		
	END_MSG_MAP()

// Handler prototypes (uncomment arguments if needed):
//	LRESULT MessageHandler(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
//	LRESULT CommandHandler(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
//	LRESULT NotifyHandler(int /*idCtrl*/, LPNMHDR /*pnmh*/, BOOL& /*bHandled*/)
	LRESULT OnPaint(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		CPaintDC dc(m_hWnd);
		RECT rc;
		GetClientRect(&rc);
		dc.FillSolidRect(&rc, COLORREF(RGB(100, 0, 0)));

		return 0;
	}

	LRESULT OnInitDialog(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		pGIFInst = new CGIFShow(GetDC());


		// center the dialog on the screen
		CenterWindow();

		SHINITDLGINFO sid;

		sid.dwMask = SHIDIM_FLAGS;		// This is the only allowed value
		sid.dwFlags = SHIDIF_SIZEDLGFULLSCREEN;		// Make the DB full screan
		sid.hDlg = m_hWnd;		// Handle to the main dialog

		SHInitDialog(&sid);


		SHMENUBARINFO mbi = { sizeof(mbi), 0 };
		mbi.hwndParent = m_hWnd;
		mbi.nToolBarId = IDR_MENU1; // ID of toolbar resource
		mbi.hInstRes = _AtlBaseModule.GetResourceInstance();
		mbi.dwFlags = SHCMBF_HMENU;

		VERIFY(SHCreateMenuBar(&mbi));

		// set icons
		HICON hIcon = (HICON)::LoadImage(_Module.GetResourceInstance(), MAKEINTRESOURCE(IDR_MAINFRAME), 
			IMAGE_ICON, ::GetSystemMetrics(SM_CXICON), ::GetSystemMetrics(SM_CYICON), LR_DEFAULTCOLOR);
		SetIcon(hIcon, TRUE);
		HICON hIconSmall = (HICON)::LoadImage(_Module.GetResourceInstance(), MAKEINTRESOURCE(IDR_MAINFRAME), 
			IMAGE_ICON, ::GetSystemMetrics(SM_CXSMICON), ::GetSystemMetrics(SM_CYSMICON), LR_DEFAULTCOLOR);
		SetIcon(hIconSmall, FALSE);

		// register object for message filtering and idle updates
		CMessageLoop* pLoop = _Module.GetMessageLoop();
		ATLASSERT(pLoop != NULL);
		pLoop->AddMessageFilter(this);
		pLoop->AddIdleHandler(this);

		UIAddChildWindowContainer(m_hWnd);

		return TRUE;
	}

	LRESULT OnAppAbout(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{/*
		CAboutDlg dlg;
		dlg.DoModal();*/

		static bool bSwitch = true;
		
		if (bSwitch)
		{
			//if(pGIFInst->Load(TEXT("\\200751752722625778052.gif")))
			//if(pGIFInst->Load(TEXT("\\earth.gif")))
			if(pGIFInst == NULL)
				pGIFInst = new CGIFShow(GetDC());
			if(pGIFInst->Load(TEXT("\\earth.gif")))
			{
				RECT rcClient;
				GetClientRect(&rcClient);

				pGIFInst->SetPosition(96,130);
				pGIFInst->Play();
			}

			bSwitch = false;
		}
		else
		{
			bSwitch = true;
			pGIFInst->Stop();
		}

		return 0;
	}

	LRESULT OnOK(WORD /*wNotifyCode*/, WORD wID, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		// TODO: Add validation code 
		CloseDialog(wID);
		return 0;
	}

	LRESULT OnCancel(WORD /*wNotifyCode*/, WORD wID, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		CloseDialog(wID);
		return 0;
	}

	LRESULT OnShoweGif(WORD /*wNotifyCode*/, WORD wID, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		if(pGIFInst == NULL)
			pGIFInst = new CGIFShow(GetDC());
		if(pGIFInst->Load(TEXT("\\earth.gif")))
		{
			RECT rcClient;
			GetClientRect(&rcClient);

			pGIFInst->SetPosition(96,130);
			pGIFInst->Play();
		}
		return 0;
	}

	LRESULT OnHideGif(WORD /*wNotifyCode*/, WORD wID, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		if(pGIFInst)
			pGIFInst->Stop();
		return 0;
	}

	LRESULT OnDestroyGif(WORD /*wNotifyCode*/, WORD wID, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		delete pGIFInst;
		pGIFInst = NULL;
		RECT invalideRect;
		SetRect(&invalideRect , 96,130 , 96+120 , 130+120);
		InvalidateRect(&invalideRect , TRUE);
		//UpdateWindow();
		return 0;
	}
	void CloseDialog(int nVal)
	{
		if(NULL != pGIFInst)
			delete pGIFInst;

		DestroyWindow();
		::PostQuitMessage(nVal);
	}
};