339 lines
7.0 KiB
C
339 lines
7.0 KiB
C
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#include <wtl/atlctrls.h>
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#include <stdio.h>
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class CEditNumber :
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public CWindowImpl<CEditNumber, CEdit>
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{
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public:
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enum DisplayType {
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DisplayHex,
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DisplayDec,
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};
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protected:
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enum {
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WM_VALIDATE_VALUE = WM_USER + 0x97
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};
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DisplayType m_DisplayType;
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BEGIN_MSG_MAP(CEditNumber)
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MESSAGE_HANDLER(WM_CHAR, OnKeyDown)
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MESSAGE_HANDLER(WM_KEYDOWN, OnKeyDown)
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MESSAGE_HANDLER(WM_PASTE, OnPaste)
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MESSAGE_HANDLER(WM_VALIDATE_VALUE,OnValidateValue);
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END_MSG_MAP()
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bool IsHexConvertableText(LPTSTR _text)
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{
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int start,end;
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GetSel(start,end);
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char WindowText[200];
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GetWindowText(WindowText,sizeof(WindowText));
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bool bPaste=true;
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unsigned int Len = strlen(WindowText);
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char head = Len > 0 ? WindowText[0] : 0;
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char second = Len > 1 ? WindowText[1] : 0;
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if(second=='X'||second=='x')
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{
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if(end<=1)
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bPaste=false;
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}
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if(!bPaste) return bPaste;
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//Check
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unsigned int i=0;
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if(strlen(_text)>=2)
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{
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if(_text[0]=='0'&&(_text[1]=='x'||_text[1]=='X'))
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{
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if((second=='x'||second=='X')&&(!(start==0&&end>=2)))
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bPaste=false;
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else if(start>0)
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bPaste=false;
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else
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i+=2;
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}
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}
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if(!bPaste) return bPaste;
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if(strlen(_text)>=1)
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{
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if(head=='0'&&(_text[0]=='x'||_text[0]=='X'))
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{
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i++;
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}
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if((_text[0]=='x'||_text[0]=='X'))
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{
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if(head!='0'&&start==0)
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bPaste=false;
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else if(!(start==1&&end>=1&&head=='0'))
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bPaste=false;
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}
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}
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if(!bPaste) return bPaste;
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for(;i<strlen(_text);i++)
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{
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char c=_text[i];
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if(!(c>=48&&c<=57||c>='A'&&c<='F'||c>='a'&&c<='f'))
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{
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bPaste=false;
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break;
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}
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}
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return bPaste;
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}
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void FormatClipboard()
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{
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LPTSTR lptstr,lptstrCopy;
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HGLOBAL hglb;
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if(!this->OpenClipboard())
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return;
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if(!IsClipboardFormatAvailable(CF_TEXT))
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return;
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hglb=GetClipboardData(CF_TEXT);
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if (hglb != NULL)
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{
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lptstr =(LPTSTR) GlobalLock(hglb);
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for(unsigned int i=0;i<strlen(lptstr);i++)
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{
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if(lptstr[i]!='X'&&lptstr[i]!='x')
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lptstr[i]=toupper(lptstr[i]);
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if(lptstr[i]=='X')
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lptstr[i]='x';
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}
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hglb = GlobalAlloc(GMEM_MOVEABLE,
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(strlen(lptstr)+1) * sizeof(TCHAR));
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if (hglb == NULL)
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{
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CloseClipboard();
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return;
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}
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lptstrCopy = (LPTSTR)GlobalLock(hglb);
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memcpy(lptstrCopy, lptstr,strlen(lptstr) + 1);
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GlobalUnlock(lptstr);
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GlobalUnlock(hglb);
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SetClipboardData(CF_TEXT,hglb);
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CloseClipboard();
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}
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}
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LRESULT OnValidateValue(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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bHandled = true;
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return true;
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}
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LRESULT OnPaste(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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//Paste
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bHandled = false;
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if (!IsClipboardFormatAvailable(CF_TEXT))
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{
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bHandled = true;
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return true;
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}
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if (!OpenClipboard())
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{
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bHandled = true;
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return true;
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}
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HGLOBAL hglb = GetClipboardData(CF_TEXT);
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if (hglb != NULL)
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{
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LPTSTR lptstr =(LPTSTR) GlobalLock(hglb);
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//Check invalid hex string
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if(!IsHexConvertableText(lptstr))
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{
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bHandled = true;
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}
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GlobalUnlock(lptstr);
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}
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CloseClipboard();
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if (!bHandled)
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{
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FormatClipboard();
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}
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return true;
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}
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LRESULT OnKeyDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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int start,end;
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GetSel(start,end);
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//CString text;
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char WindowText[200];
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GetWindowText(WindowText,sizeof(WindowText));
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int Len = strlen(WindowText);
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char head = Len > 0 ? WindowText[0] : 0;
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char second = Len > 1 ? WindowText[1] : 0;
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bool bCut=true;
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if (uMsg == WM_CHAR)
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{
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int MaxLen = 30;
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if (m_DisplayType == DisplayHex)
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{
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MaxLen = 8;
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if( second == 'x' || second == 'X' )
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{
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MaxLen += 2;
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}
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}
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int c=(int)wParam;
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if (wParam < 32)
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{
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if ( wParam == 8 && ( second == 'x'|| second == 'X' ) && head == '0' && end==1 )
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{
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//does not allow to delete '0' before x
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bHandled = true;
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} else {
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bHandled = false;
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}
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return TRUE;
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}
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if( second == 'x' || second == 'X' )
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{
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//does not allow to change head except select includes first and second
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if ( start <= 1 && end <= 1)
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{
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bHandled = true;
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return TRUE;
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}
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}
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if ( start == 1 && ( c == 'X' || c == 'x' ) && head == '0' )
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{
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if (c == 'X')
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{
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SendMessage(uMsg, 'x',lParam);
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bHandled = true;
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} else {
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bHandled = false;
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}
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return true;
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}
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else if ( c >= 48 && c<= 57 || c >= 'A' && c<= 'F')
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{
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if (Len >= MaxLen && start == end)
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{
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bHandled = true;
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return true;
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}
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bHandled = false;
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return true;
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}
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else if (c >= 'a' && c <= 'f')
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{
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if (Len >= MaxLen && start == end)
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{
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bHandled = true;
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return true;
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}
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SendMessage(uMsg, wParam - 32,lParam);
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bHandled = true;
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return true;
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}
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bHandled = true;
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return true;
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}
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bHandled = false;
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return false;
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}
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public:
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CEditNumber (void) :
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m_DisplayType(DisplayDec)
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{
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}
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virtual ~CEditNumber (void)
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{
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}
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BOOL Attach(HWND hWndNew)
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{
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return SubclassWindow(hWndNew);
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}
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BOOL AttachToDlgItem(HWND parent, UINT dlgID)
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{
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return SubclassWindow(::GetDlgItem(parent,dlgID));
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}
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void SetDisplayType(DisplayType Type)
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{
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DWORD lCurrentValue = GetValue();
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m_DisplayType = Type;
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SetValue(lCurrentValue);
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}
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DWORD GetValue ( void )
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{
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char text[200];
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GetWindowText(text,sizeof(text));
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if (m_DisplayType == DisplayDec)
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{
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return atoi(text);
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}
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int Finish = strlen(text);
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char second = Finish > 1 ? text[1] : 0;
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int Start = (second == 'x' || second == 'X') ? 2 : 0;
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if (Finish > (8 + Start)) { Finish = (8 + Start); }
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DWORD Value = 0;
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for (int i = Start; i < Finish; i++)
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{
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Value = (Value << 4);
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switch( text[i] ) {
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case '0': break;
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case '1': Value += 1; break;
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case '2': Value += 2; break;
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case '3': Value += 3; break;
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case '4': Value += 4; break;
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case '5': Value += 5; break;
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case '6': Value += 6; break;
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case '7': Value += 7; break;
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case '8': Value += 8; break;
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case '9': Value += 9; break;
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case 'A': Value += 10; break;
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case 'a': Value += 10; break;
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case 'B': Value += 11; break;
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case 'b': Value += 11; break;
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case 'C': Value += 12; break;
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case 'c': Value += 12; break;
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case 'D': Value += 13; break;
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case 'd': Value += 13; break;
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case 'E': Value += 14; break;
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case 'e': Value += 14; break;
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case 'F': Value += 15; break;
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case 'f': Value += 15; break;
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default:
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Value = (Value >> 4);
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i = Finish;
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}
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}
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return Value;
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}
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void SetValue (DWORD Value, bool ShowHexIdent = true, bool ZeroExtend = false)
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{
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char text[200];
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if (m_DisplayType == DisplayDec)
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{
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sprintf(text,"%d",Value);
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} else {
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sprintf(text,"%s%0*X",ShowHexIdent ? "0x" : "", ZeroExtend ? 8 : 0, Value);
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}
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SetWindowText(text);
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}
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};
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