DDXM.CPP
资源名称:MSDN_VC98.zip [点击查看]
上传用户:bangxh
上传日期:2007-01-31
资源大小:42235k
文件大小:2k
源码类别:
Windows编程
开发平台:
Visual C++
- // ddxm.cpp : implementation file
- //
- // 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 "ddxm.h"
- #include "wordpad.h"
- #include "resource.h"
- // this routine prints a floatingpoint number with 2 digits after the decimal
- void PASCAL DDX_Twips(CDataExchange* pDX, int nIDC, int& value)
- {
- HWND hWndCtrl = pDX->PrepareEditCtrl(nIDC);
- TCHAR szT[64];
- if (pDX->m_bSaveAndValidate)
- {
- ::GetWindowText(hWndCtrl, szT, sizeof(szT));
- if (szT[0] != NULL) // not empty
- {
- if (!theApp.ParseMeasurement(szT, value))
- {
- AfxMessageBox(IDS_INVALID_MEASUREMENT,MB_OK|MB_ICONINFORMATION);
- pDX->Fail(); // throws exception
- }
- theApp.PrintTwips(szT, value, 2);
- theApp.ParseMeasurement(szT, value);
- }
- else // empty
- value = INT_MAX;
- }
- else
- {
- // convert from twips to default units
- if (value != INT_MAX)
- {
- theApp.PrintTwips(szT, value, 2);
- SetWindowText(hWndCtrl, szT);
- }
- }
- }
- void PASCAL DDV_MinMaxTwips(CDataExchange* pDX, int value, int minVal, int maxVal)
- {
- ASSERT(minVal <= maxVal);
- if (value < minVal || value > maxVal)
- {
- // "The measurement must be between %1 and %2."
- if (!pDX->m_bSaveAndValidate)
- {
- TRACE0("Warning: initial dialog data is out of range.n");
- return; // don't stop now
- }
- TCHAR szMin[32];
- TCHAR szMax[32];
- theApp.PrintTwips(szMin, minVal, 2);
- theApp.PrintTwips(szMax, maxVal, 2);
- CString prompt;
- AfxFormatString2(prompt, IDS_MEASUREMENT_RANGE, szMin, szMax);
- AfxMessageBox(prompt, MB_ICONEXCLAMATION, AFX_IDS_APP_TITLE);
- prompt.Empty(); // exception prep
- pDX->Fail();
- }
- }