VC启动窗口画面制作方法研究[图](3)
/////////////////////////////////////////////////////////////////////////////////Written by Liu Zhengxi //May 5,2003//Compiles with Visual C++ 6.0 for Windows 98 and probably Windows 2000 // too.//////
/////////////////////////////////////////////////////////////////////////////////Written by Liu Zhengxi //May 5,2003//Compiles with Visual C++ 6.0 for Windows 98 and probably Windows 2000 // too.///////////////////////////////////////////////////////////////////////////////// Splash.cpp : implementation file//#include <atlbase.h>#include <afxwin.h>#include <afxpriv2.h>#include "stdafx.h" // e. g. stdafx.h#include "Splash.h" // e.g. splash.h#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char BASED_CODE THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CSplashWnd class//////////////////////////////////////////////////////////////////////////////constructor//Load image from the given file//CSplashWnd::CSplashWnd(LPCTSTR lpszFileName){ fileIsValid = pic.Load(lpszFileName); if(fileIsValid) { CSize cz = pic.GetImageSize(NULL); width = cz.cx; height = cz.cy; }}//////////////////////////////////////////////////////////////////////////////////nothing to do//deconstructor//CSplashWnd::~CSplashWnd(){} //////////////////////////////////////////////////////////////////////////////////message map//BEGIN_MESSAGE_MAP(CSplashWnd, CWnd) //{{AFX_MSG_MAP(CSplashWnd) ON_WM_CREATE() ON_WM_PAINT() ON_WM_TIMER() //}}AFX_MSG_MAPEND_MESSAGE_MAP()//////////////////////////////////////////////////////////////////////////////////ShowSplash//to display the given image on screen//BOOL CSplashWnd::ShowSplash(){ if(fileIsValid) { if (!Create(AfxGetMainWnd())) return false; else { UpdateWindow(); return true; } } else { return false; }}//////////////////////////////////////////////////////////////////////////////////PreTranslateAppMessage//BOOL CSplashWnd::PreTranslateAppMessage(MSG* pMsg){ // If we get a keyboard or mouse message, hide the splash screen. if (pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN || pMsg->message == WM_LBUTTONDOWN || pMsg->message == WM_RBUTTONDOWN || pMsg->message == WM_MBUTTONDOWN || pMsg->message == WM_NCLBUTTONDOWN || pMsg->message == WM_NCRBUTTONDOWN || pMsg->message == WM_NCMBUTTONDOWN) { CloseSplash(); return TRUE; // message handled here } return FALSE; // message not handled}//////////////////////////////////////////////////////////////////////////////////Create//make a popup splash window//BOOL CSplashWnd::Create(CWnd* pParentWnd /*= NULL*/){ return CreateEx(0, AfxRegisterWndClass(0, AfxGetApp()->LoadStandardCursor(IDC_ARROW)), NULL, WS_POPUP | WS_VISIBLE, 0, 0, width, height, pParentWnd->GetSafeHwnd(), NULL);}//////////////////////////////////////////////////////////////////////////////////CloseSplash//Quit the splash window//void CSplashWnd::CloseSplash(){ // Destroy the window, and update the mainframe. DestroyWindow();}//////////////////////////////////////////////////////////////////////////////////do nothing//void CSplashWnd::PostNcDestroy(){} //////////////////////////////////////////////////////////////////////////////////OnCreate//put the splash window on center//int CSplashWnd::OnCreate(LPCREATESTRUCT lpCreateStruct){ if (CWnd::OnCreate(lpCreateStruct) == -1) return -1; // Center the window. CenterWindow(); return 0;} //////////////////////////////////////////////////////////////////////////////////OnPaint//Display the given image//void CSplashWnd::OnPaint(){ CPaintDC dc(this); CRect rc(0,0,0,0);; pic.Render(&dc, rc);}//////////////////////////////////////////////////////////////////////////////////ShowText//sometimes if we show what we are doing (I display the information on the center of //the picture ), the customer will be more //patient////void CSplashWnd::ShowText(LPCTSTR lpStr){ Invalidate(); CPaintDC dc(this); dc.SetBkMode(TRANSPARENT); SIZE sz; sz = (SIZE)dc.GetTextExtent(lpStr,strlen(lpStr)); dc.TextOut((width-sz.cx)/2,height/2,lpStr);}////////////////////////////////////////////////////////////////// MSDN Magazine ― October 2001// If this code works, it was written by Paul DiLascia.// If not, I don''t know who wrote it.// Compiles with Visual C++ 6.0 for Windows 98 and probably Windows 2000 // too.// Set tabsize = 3 in your editor.//////////////////////////////////////////////////////////////////// CPicture implementation//CPicture::CPicture(){}CPicture::~CPicture(){}//////////////////// Load from resource. Looks for "IMAGE" type.//BOOL CPicture::Load(UINT nIDRes){ // find resource in resource file HINSTANCE hInst = AfxGetResourceHandle(); HRSRC hRsrc = ::FindResource(hInst, MAKEINTRESOURCE(nIDRes), "IMAGE"); // type if (!hRsrc) return FALSE; // load resource into memory DWORD len = SizeofResource(hInst, hRsrc); BYTE* lpRsrc = (BYTE*)LoadResource(hInst, hRsrc); if (!lpRsrc) return FALSE; // create memory file and load it CMemFile file(lpRsrc, len); BOOL bRet = Load(file); FreeResource(hRsrc); return bRet;} //////////////////// Load from path name.//BOOL CPicture::Load(LPCTSTR pszPathName){ CFile file; if (!file.Open(pszPathName, CFile::modeRead|CFile::shareDenyWrite)) return FALSE; BOOL bRet = Load(file); file.Close(); return bRet;} //////////////////// Load from CFile//BOOL CPicture::Load(CFile& file){ CArchive ar(&file, CArchive::load | CArchive::bNoFlushOnDelete); return Load(ar);} //////////////////// Load from archive―create stream and load from stream.//BOOL CPicture::Load(CArchive& ar){ CArchiveStream arcstream(&ar); return Load((IStream*)&arcstream);} //////////////////// Load from stream (IStream). This is the one that really does it: call// OleLoadPicture to do the work.//BOOL CPicture::Load(IStream* pstm){ Free(); HRESULT hr = OleLoadPicture(pstm, 0, FALSE, IID_IPicture, (void**)&m_spIPicture); ASSERT(SUCCEEDED(hr) && m_spIPicture); return TRUE;}//////////////////// Get image size in pixels. Converts from HIMETRIC to device coords.//CSize CPicture::GetImageSize(CDC* pDC) const{ if (!m_spIPicture) return CSize(0,0); LONG hmWidth, hmHeight; // HIMETRIC units m_spIPicture->get_Width(&hmWidth); m_spIPicture->get_Height(&hmHeight); CSize sz(hmWidth,hmHeight); if (pDC==NULL) { CWindowDC dc(NULL); dc.HIMETRICtoDP(&sz); // convert to pixels } else { pDC->HIMETRICtoDP(&sz); } return sz;}//////////////////// Render to device context. Covert to HIMETRIC for IPicture.//BOOL CPicture::Render(CDC* pDC, CRect rc, LPCRECT prcMFBounds) const{ ASSERT(pDC); if (rc.IsRectNull()) { CSize sz = GetImageSize(pDC); rc.right = sz.cx; rc.bottom = sz.cy; } long hmWidth,hmHeight; // HIMETRIC units GetHIMETRICSize(hmWidth, hmHeight); m_spIPicture->Render(*pDC, rc.left, rc.top, rc.Width(), rc.Height(), 0, hmHeight, hmWidth, -hmHeight, prcMFBounds); return TRUE;}参考连接:
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