678 lines
16 KiB
C++
678 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1996-1998 Microsoft Corporation
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//
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// Module Name:
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// AtlUtil.cpp
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//
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// Abstract:
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// Implementation of helper functions for use in an ATL project.
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//
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// Author:
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// David Potter (davidp) December 11, 1997
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//
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// Revision History:
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//
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// Notes:
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//
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/////////////////////////////////////////////////////////////////////////////
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#include "AtlUtil.h"
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#include "resource.h"
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_GetText
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//
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// Routine Description:
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// Get a text value from a control on a dialog.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] ID of control to get value from.
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// rstrValue [IN OUT] String in which to return value.
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//
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// Return Value:
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// TRUE Value retrieved successfully.
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// FALSE Error retrieving value.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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BOOL DDX_GetText(
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IN HWND hwndDlg,
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IN int nIDC,
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IN OUT CString & rstrValue
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)
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{
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ATLASSERT( hwndDlg != NULL );
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//
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// Get the handle for the control.
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//
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HWND hwndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hwndCtrl != NULL );
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//
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// Get the text from the control.
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//
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int cch = GetWindowTextLength( hwndCtrl );
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if ( cch == 0 )
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{
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rstrValue = _T("");
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} // if: edit control is empty
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else
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{
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LPTSTR pszValue = rstrValue.GetBuffer( cch + 1 );
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ATLASSERT( pszValue != NULL );
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int cchRet = GetWindowText( hwndCtrl, pszValue, cch + 1 );
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ATLASSERT( cchRet > 0 );
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rstrValue.ReleaseBuffer();
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} // else: length of text retrieved
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return TRUE;
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} //*** DDX_GetText()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_SetText
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//
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// Routine Description:
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// Set a text value into a control on a dialog.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] ID of control to set value to.
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// rstrValue [IN] String to set into the dialog.
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//
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// Return Value:
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// TRUE Value set successfully.
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// FALSE Error setting value.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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BOOL DDX_SetText(
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IN HWND hwndDlg,
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IN int nIDC,
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IN const CString & rstrValue
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)
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{
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ATLASSERT( hwndDlg != NULL );
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//
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// Set the text into the control.
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//
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BOOL bSuccess = SetDlgItemText( hwndDlg, nIDC, rstrValue );
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ATLASSERT( bSuccess );
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return bSuccess;
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} //*** DDX_SetText()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_SetComboBoxText
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//
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// Routine Description:
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// Set a text value into a control on a dialog.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] ID of control to set value to.
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// rstrValue [IN] String to set into the dialog.
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// bRequired [IN] TRUE = text must already exist in the combobox.
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//
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// Return Value:
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// TRUE Value set successfully.
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// FALSE Error setting value.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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BOOL DDX_SetComboBoxText(
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IN HWND hwndDlg,
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IN int nIDC,
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IN const CString & rstrValue,
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IN BOOL bRequired
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)
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{
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ATLASSERT( hwndDlg != NULL );
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BOOL bSuccess = TRUE;
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//
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// Get the handle for the control.
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//
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HWND hwndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hwndCtrl != NULL );
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#if DBG
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TCHAR szWindowClass[256];
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::GetClassName( hwndCtrl, szWindowClass, (sizeof( szWindowClass ) / sizeof( TCHAR )) - 1 );
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ATLASSERT( lstrcmp( szWindowClass, _T("ComboBox") ) == 0 );
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#endif // DBG
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int idx = (int) SendMessage( hwndCtrl, CB_FINDSTRINGEXACT, -1, (LPARAM)(LPCTSTR) rstrValue );
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if ( idx != CB_ERR )
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{
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SendMessage( hwndCtrl, CB_SETCURSEL, idx, 0 );
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} // if: message sent successfully
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else
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{
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if ( bRequired )
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{
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ATLASSERT( idx != CB_ERR );
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} // if: string was supposed to be present already
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bSuccess = FALSE;
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} // else if: error sending message
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return bSuccess;
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} //*** DDX_SetComboBoxText()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_GetNumber
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//
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// Routine Description:
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// Get a numeric value from a control on a dialog.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] ID of control to get value from.
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// rnValue [IN OUT] Number in which to return value.
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// nMin [IN] Minimum value.
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// nMax [IN] Maximum value.
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// bSigned [IN] TRUE = value is signed, FALSE = value is unsigned
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//
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// Return Value:
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// TRUE Value retrieved successfully.
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// FALSE Error retrieving value.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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BOOL DDX_GetNumber(
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IN HWND hwndDlg,
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IN int nIDC,
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IN OUT ULONG & rnValue,
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IN ULONG nMin,
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IN ULONG nMax,
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IN BOOL bSigned
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)
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{
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ATLASSERT( hwndDlg != NULL );
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BOOL bSuccess = TRUE;
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BOOL bTranslated;
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ULONG nValue;
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//
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// Get the handle for the control.
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//
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HWND hwndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hwndCtrl != NULL );
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//
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// Get the number from the control.
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//
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nValue = GetDlgItemInt( hwndDlg, nIDC, &bTranslated, bSigned );
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//
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// If the retrival failed, it is a signed number, and the minimum
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// value is the smallest negative value possible, check the string itself.
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//
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if ( ! bTranslated && bSigned && (nMin == 0x80000000) )
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{
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UINT cch;
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TCHAR szNumber[20];
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//
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// See if it is the smallest negative number.
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//
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cch = GetWindowText( hwndCtrl, szNumber, sizeof( szNumber ) / sizeof(TCHAR ) );
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if ( (cch != 0) && (lstrcmp( szNumber, _T("-2147483648") ) == 0) )
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{
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nValue = 0x80000000;
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bTranslated = TRUE;
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} // if: text retrieved successfully and is highest negative number
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} // if: error translating number and getting signed number
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//
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// If the retrieval failed or the specified number is
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// out of range, display an error.
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//
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if ( ! bTranslated
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|| (bSigned && (((LONG) nValue < (LONG) nMin) || ((LONG) nValue > (LONG) nMax)))
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|| (! bSigned && ((nValue < nMin) || (nValue > nMax)))
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)
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{
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TCHAR szMin[32];
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TCHAR szMax[32];
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CString strPrompt;
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bSuccess = FALSE;
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if ( bSigned )
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{
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wsprintf( szMin, _T("%d%"), nMin );
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wsprintf( szMax, _T("%d%"), nMax );
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} // if: signed number
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else
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{
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wsprintf( szMin, _T("%u%"), nMin );
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wsprintf( szMax, _T("%u%"), nMax );
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} // else: unsigned number
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strPrompt.FormatMessage( IDP_PARSE_INT_RANGE, szMin, szMax );
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AppMessageBox( hwndDlg, strPrompt, MB_ICONEXCLAMATION );
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SetFocus( hwndCtrl );
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} // if: invalid string
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else
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{
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rnValue = nValue;
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} // else: valid string
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return bSuccess;
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} //*** DDX_GetNumber()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_GetNumber
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//
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// Routine Description:
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// Set a numeric value into a control on a dialog.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] ID of control to get value from.
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// nValue [IN] Number value to set into the control.
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// nMin [IN] Minimum value.
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// nMax [IN] Maximum value.
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// bSigned [IN] TRUE = value is signed, FALSE = value is unsigned
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//
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// Return Value:
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// TRUE Value retrieved successfully.
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// FALSE Error retrieving value.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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BOOL DDX_SetNumber(
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IN HWND hwndDlg,
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IN int nIDC,
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IN ULONG nValue,
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IN ULONG nMin,
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IN ULONG nMax,
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IN BOOL bSigned
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)
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{
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ATLASSERT( hwndDlg != NULL );
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CString strMinValue;
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CString strMaxValue;
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UINT cchMax;
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//
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// Get the handle for the control.
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//
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HWND hwndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hwndCtrl != NULL );
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//
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// Set the maximum number of characters that can be entered.
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//
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if ( bSigned )
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{
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strMinValue.Format( _T("%d"), nMin );
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strMaxValue.Format( _T("%d"), nMax );
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} // if: signed value
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else
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{
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strMinValue.Format( _T("%u"), nMin );
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strMaxValue.Format( _T("%u"), nMax );
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} // else: unsigned value
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cchMax = max( strMinValue.GetLength(), strMaxValue.GetLength() );
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SendMessage( hwndCtrl, EM_LIMITTEXT, cchMax, 0 );
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// Set the value into the control.
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BOOL bSuccess = SetDlgItemInt( hwndDlg, nIDC, nValue, bSigned );
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ATLASSERT( bSuccess );
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return bSuccess;
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} //*** DDX_SetNumber()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDV_RequiredText
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//
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// Routine Description:
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// Validate that the dialog string is present.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] Control ID.
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// nIDCLabel [IN] Label control ID.
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// rstrValue [IN] Value to set or get.
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//
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// Return Value:
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// TRUE Required value is present.
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// FALSE Required value is not present.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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BOOL DDV_RequiredText(
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IN HWND hwndDlg,
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IN int nIDC,
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IN int nIDCLabel,
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IN const CString & rstrValue
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)
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{
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ATLASSERT( hwndDlg != NULL );
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BOOL bSuccess = TRUE;
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BOOL bIsBlank;
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//
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// Get the handle for the control.
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//
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HWND hwndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hwndCtrl != NULL );
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//
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// Get the window class name.
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//
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TCHAR szWindowClass[256];
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GetClassName( hwndCtrl, szWindowClass, (sizeof( szWindowClass ) / sizeof( TCHAR )) - 1 );
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//
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// If this is the IP Address control, send a special message to
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// determine if it is empty or not.
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//
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if ( lstrcmp( szWindowClass, WC_IPADDRESS ) == 0 )
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{
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bIsBlank = SendMessage( hwndCtrl, IPM_ISBLANK, 0, 0 );
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} // if: IP Address control
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else
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{
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bIsBlank = rstrValue.GetLength() == 0;
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} // else: edit control
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if ( bIsBlank )
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{
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TCHAR szLabel[1024];
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bSuccess = FALSE;
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//
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// Get the text of the label.
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//
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GetDlgItemText( hwndDlg, nIDCLabel, szLabel, sizeof( szLabel ) / sizeof( TCHAR ) );
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//
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// Remove ampersands (&) and colons (:).
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//
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CleanupLabel( szLabel );
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//
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// Format and display a message.
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//
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CString strPrompt;
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strPrompt.FormatMessage( IDS_REQUIRED_FIELD_EMPTY, szLabel );
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AppMessageBox( hwndDlg, strPrompt, MB_ICONEXCLAMATION );
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//
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// Set focus to the control.
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HWND hwndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hwndCtrl != NULL );
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SetFocus( hwndCtrl );
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} // if: field not specified
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return bSuccess;
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} //*** DDV_RequiredText()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CleanupLabel
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//
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// Routine Description:
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// Prepare a label read from a dialog to be used as a string in a
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// message by removing ampersands (&) and colons (:).
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//
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// Arguments:
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// pszLabel [IN OUT] Label to be cleaned up.
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//
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// Return Value:
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// None.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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void CleanupLabel( IN OUT LPTSTR pszLabel )
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{
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LPTSTR pIn, pOut;
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LANGID langid;
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WORD primarylangid;
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BOOL bFELanguage;
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//
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// Get the language ID.
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//
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langid = GetUserDefaultLangID();
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primarylangid = (WORD) PRIMARYLANGID( langid );
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bFELanguage = ((primarylangid == LANG_JAPANESE)
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|| (primarylangid == LANG_CHINESE)
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|| (primarylangid == LANG_KOREAN));
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//
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// Copy the name sans '&' and ':' chars
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//
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pIn = pOut = pszLabel;
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do
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{
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//
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// Strip FE accelerators with parentheses. e.g. "foo(&F)" -> "foo"
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//
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if ( bFELanguage
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&& (pIn[0] == _T('('))
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&& (pIn[1] == _T('&'))
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&& (pIn[2] != _T('\0'))
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&& (pIn[3] == _T(')')))
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{
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pIn += 3;
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} // if: FE language and parenthesized hotkey present
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else if ( (*pIn != _T('&')) && (*pIn != _T(':')) )
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{
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*pOut++ = *pIn;
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} // if: found hotkey
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} while ( *pIn++ != _T('\0') ) ;
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} //*** CleanupLabel()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDV_GetCheck
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//
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// Routine Description:
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// Validate that the dialog string is present.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] Control ID.
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// rnValue [OUT] Value to get.
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//
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// Return Value:
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// None.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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void DDX_GetCheck( IN HWND hwndDlg, IN int nIDC, OUT int & rnValue )
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{
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ATLASSERT( hwndDlg != NULL );
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//
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// Get the handle for the control.
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//
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HWND hWndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hWndCtrl != NULL );
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rnValue = (int)::SendMessage( hWndCtrl, BM_GETCHECK, 0, 0L );
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ATLASSERT( (rnValue >= 0) && (rnValue <= 2) );
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} //*** DDX_GetCheck()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_SetCheck
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//
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// Routine Description:
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// Validate that the dialog string is present.
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//
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// Arguments:
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// hwndDlg [IN] Dialog window handle.
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// nIDC [IN] Control ID.
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// nValue [IN] Value to set.
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//
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// Return Value:
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// None.
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//
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//--
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/////////////////////////////////////////////////////////////////////////////
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void DDX_SetCheck( IN HWND hwndDlg, IN int nIDC, IN int nValue )
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{
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ATLASSERT( hwndDlg != NULL );
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//
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// Get the handle for the control.
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//
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HWND hWndCtrl = GetDlgItem( hwndDlg, nIDC );
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ATLASSERT( hWndCtrl != NULL );
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ATLASSERT( (nValue >= 0) && (nValue <= 2) );
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if ( (nValue < 0) || (nValue > 2) )
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{
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ATLTRACE( _T("Warning: dialog data checkbox value (%d) out of range.\n"), nValue );
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nValue = 0; // default to off
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} // if: value is out of range
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::SendMessage( hWndCtrl, BM_SETCHECK, (WPARAM) nValue, 0L );
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} //*** DDX_SetCheck()
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/////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DDX_GetRadio
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//
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// Routine Description:
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// Validate that the dialog string is present.
|
|
//
|
|
// Arguments:
|
|
// hwndDlg [IN] Dialog window handle.
|
|
// nIDC [IN] Control ID of first radio button in a group.
|
|
// rnValue [OUT] Value to get.
|
|
//
|
|
// Return Value:
|
|
// None.
|
|
//
|
|
//--
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
void DDX_GetRadio( IN HWND hwndDlg, IN int nIDC, IN int & rnValue )
|
|
{
|
|
ATLASSERT( hwndDlg != NULL );
|
|
|
|
//
|
|
// Get the handle for the control.
|
|
//
|
|
HWND hWndCtrl = GetDlgItem( hwndDlg, nIDC );
|
|
ATLASSERT( hWndCtrl != NULL );
|
|
|
|
ATLASSERT( ::GetWindowLong( hWndCtrl, GWL_STYLE ) & WS_GROUP );
|
|
ATLASSERT( ::SendMessage( hWndCtrl, WM_GETDLGCODE, 0, 0L ) & DLGC_RADIOBUTTON );
|
|
|
|
rnValue = -1; // value if none found
|
|
|
|
// walk all children in group
|
|
int iButton = 0;
|
|
do
|
|
{
|
|
if ( ::SendMessage( hWndCtrl, WM_GETDLGCODE, 0, 0L ) & DLGC_RADIOBUTTON )
|
|
{
|
|
// control in group is a radio button
|
|
if ( ::SendMessage( hWndCtrl, BM_GETCHECK, 0, 0L ) != 0 )
|
|
{
|
|
ASSERT( rnValue == -1 ); // only set once
|
|
rnValue = iButton;
|
|
} // if: button is set
|
|
iButton++;
|
|
} // if: control is a radio button
|
|
else
|
|
{
|
|
ATLTRACE( _T("Warning: skipping non-radio button in group.\n") );
|
|
} // else: control is not a radio button
|
|
hWndCtrl = ::GetWindow( hWndCtrl, GW_HWNDNEXT );
|
|
|
|
} while ( hWndCtrl != NULL &&
|
|
!(GetWindowLong( hWndCtrl, GWL_STYLE ) & WS_GROUP) );
|
|
|
|
} //*** DDX_GetRadio()
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
//++
|
|
//
|
|
// DDX_SetRadio
|
|
//
|
|
// Routine Description:
|
|
// Validate that the dialog string is present.
|
|
//
|
|
// Arguments:
|
|
// hwndDlg [IN] Dialog window handle.
|
|
// nIDC [IN] Control ID of first radio button in a group.
|
|
// nValue [IN] Value to set.
|
|
//
|
|
// Return Value:
|
|
// None.
|
|
//
|
|
//--
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
void DDX_SetRadio( IN HWND hwndDlg, IN int nIDC, IN int nValue )
|
|
{
|
|
ATLASSERT( hwndDlg != NULL );
|
|
|
|
//
|
|
// Get the handle for the control.
|
|
//
|
|
HWND hWndCtrl = GetDlgItem( hwndDlg, nIDC );
|
|
ATLASSERT( hWndCtrl != NULL );
|
|
|
|
ATLASSERT( ::GetWindowLong( hWndCtrl, GWL_STYLE ) & WS_GROUP );
|
|
ATLASSERT( ::SendMessage( hWndCtrl, WM_GETDLGCODE, 0, 0L ) & DLGC_RADIOBUTTON );
|
|
|
|
// walk all children in group
|
|
int iButton = 0;
|
|
do
|
|
{
|
|
if ( ::SendMessage( hWndCtrl, WM_GETDLGCODE, 0, 0L ) & DLGC_RADIOBUTTON )
|
|
{
|
|
// control in group is a radio button
|
|
// select button
|
|
::SendMessage( hWndCtrl, BM_SETCHECK, (iButton == nValue), 0L );
|
|
iButton++;
|
|
} // if: control is a radio button
|
|
else
|
|
{
|
|
ATLTRACE( _T("Warning: skipping non-radio button in group.\n") );
|
|
} // else: control is not a radio button
|
|
hWndCtrl = ::GetWindow( hWndCtrl, GW_HWNDNEXT );
|
|
|
|
} while ( (hWndCtrl != NULL)
|
|
&& ! (GetWindowLong( hWndCtrl, GWL_STYLE ) & WS_GROUP) );
|
|
|
|
} //*** DDX_SetRadio()
|