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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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mfc
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src
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dlgcomm.cpp
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C/C++ Source or Header
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1998-06-16
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// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.
#include "stdafx.h"
#include <dlgs.h>
#ifdef AFX_AUX_SEG
#pragma code_seg(AFX_AUX_SEG)
#endif
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define new DEBUG_NEW
AFX_COMDAT UINT _afxMsgLBSELCHANGE = 0;
AFX_COMDAT UINT _afxMsgSHAREVI = 0;
AFX_COMDAT UINT _afxMsgFILEOK = 0;
AFX_COMDAT UINT _afxMsgCOLOROK = 0;
AFX_COMDAT UINT _afxMsgHELP = 0;
AFX_COMDAT UINT _afxMsgSETRGB = 0;
BEGIN_MESSAGE_MAP(CCommonDialog, CDialog)
//{{AFX_MSG_MAP(CCommonDialog)
ON_WM_HELPINFO()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
UINT CALLBACK
_AfxCommDlgProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
if (hWnd == NULL)
return 0;
_AFX_THREAD_STATE* pThreadState = _afxThreadState.GetData();
if (pThreadState->m_pAlternateWndInit != NULL)
{
ASSERT_KINDOF(CFileDialog,pThreadState->m_pAlternateWndInit);
pThreadState->m_pAlternateWndInit->SubclassWindow(hWnd);
pThreadState->m_pAlternateWndInit = NULL;
}
ASSERT(pThreadState->m_pAlternateWndInit == NULL);
if (message == WM_INITDIALOG)
{
_afxMsgLBSELCHANGE = ::RegisterWindowMessage(LBSELCHSTRING);
_afxMsgSHAREVI = ::RegisterWindowMessage(SHAREVISTRING);
_afxMsgFILEOK = ::RegisterWindowMessage(FILEOKSTRING);
_afxMsgCOLOROK = ::RegisterWindowMessage(COLOROKSTRING);
_afxMsgHELP = ::RegisterWindowMessage(HELPMSGSTRING);
_afxMsgSETRGB = ::RegisterWindowMessage(SETRGBSTRING);
return (UINT)AfxDlgProc(hWnd, message, wParam, lParam);
}
if (message == _afxMsgHELP ||
(message == WM_COMMAND && LOWORD(wParam) == pshHelp))
{
// just translate the message into the AFX standard help command.
SendMessage(hWnd, WM_COMMAND, ID_HELP, 0);
return 1;
}
if (message < 0xC000)
{
// not a ::RegisterWindowMessage message
return 0;
}
// assume it is already wired up to a permanent one
CDialog* pDlg = (CDialog*)CWnd::FromHandlePermanent(hWnd);
ASSERT(pDlg != NULL);
ASSERT_KINDOF(CDialog, pDlg);
if (pDlg->IsKindOf(RUNTIME_CLASS(CFileDialog)))
{
// If we're exploring then we are not interested in the Registered messages
if (((CFileDialog*)pDlg)->m_ofn.Flags & OFN_EXPLORER)
return 0;
}
// RegisterWindowMessage - does not copy to lastState buffer, so
// CWnd::GetCurrentMessage and CWnd::Default will NOT work
// while in these handlers
// Dispatch special commdlg messages through our virtual callbacks
if (message == _afxMsgSHAREVI)
{
ASSERT_KINDOF(CFileDialog, pDlg);
return ((CFileDialog*)pDlg)->OnShareViolation((LPCTSTR)lParam);
}
else if (message == _afxMsgFILEOK)
{
ASSERT_KINDOF(CFileDialog, pDlg);
if (afxData.bWin4)
((CFileDialog*)pDlg)->m_pofnTemp = (OPENFILENAME*)lParam;
BOOL bResult = ((CFileDialog*)pDlg)->OnFileNameOK();
((CFileDialog*)pDlg)->m_pofnTemp = NULL;
return bResult;
}
else if (message == _afxMsgLBSELCHANGE)
{
ASSERT_KINDOF(CFileDialog, pDlg);
((CFileDialog*)pDlg)->OnLBSelChangedNotify(wParam, LOWORD(lParam),
HIWORD(lParam));
return 0;
}
else if (message == _afxMsgCOLOROK)
{
ASSERT_KINDOF(CColorDialog, pDlg);
return ((CColorDialog*)pDlg)->OnColorOK();
}
else if (message == _afxMsgSETRGB)
{
// nothing to do here, since this is a SendMessage
return 0;
}
return 0;
}
////////////////////////////////////////////////////////////////////////////
// CCommonDialog - common dialog helper class
void CCommonDialog::OnOK()
{
ASSERT_VALID(this);
if (!UpdateData(TRUE))
{
TRACE0("UpdateData failed during dialog termination.\n");
// the UpdateData routine will set focus to correct item
return;
}
// Common dialogs do not require ::EndDialog
Default();
}
void CCommonDialog::OnCancel()
{
ASSERT_VALID(this);
// Common dialogs do not require ::EndDialog
Default();
}
BOOL CCommonDialog::OnHelpInfo(HELPINFO*)
{
return Default();
}
////////////////////////////////////////////////////////////////////////////