vc音量控制程序，实现了系统音量调节

// Download by http://www.codefans.net #include "stdafx.h" // Standard windows header file #include "officexpmenu.h" // COfficeXPMenu class declaration #include <afxpriv.h> //SK: makes A2W and other spiffy AFX macros work #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif #define GAP 1 #ifndef OBM_CHECK #define OBM_CHECK 32760 // from winuser.h #endif #if _MFC_VER <0x400 #error This code does not work on Versions of MFC prior to 4.0 #endif static CPINFO CPInfo; // how the menu's are drawn in win9x/NT/2000 UINT COfficeXPMenu::original_drawmode=TYPE_NORMAL; BOOL COfficeXPMenu::xp_select_disabled=FALSE; // how the menu's are drawn in winXP UINT COfficeXPMenu::xp_drawmode=TYPE_XP; BOOL COfficeXPMenu::original_select_disabled=TRUE; enum Win32Type { Win32s, Windoze95, WinNT3, WinNT4orHigher }; Win32Type IsShellType() { Win32Type ShellType; DWORD winVer; OSVERSIONINFO *osvi; winVer=GetVersion(); if(winVer<0x80000000) {/*NT */ ShellType=WinNT3; osvi= (OSVERSIONINFO *)malloc(sizeof(OSVERSIONINFO)); if (osvi!=NULL) { memset(osvi,0,sizeof(OSVERSIONINFO)); osvi->dwOSVersionInfoSize=sizeof(OSVERSIONINFO); GetVersionEx(osvi); if (osvi->dwMajorVersion>=4L) ShellType=WinNT4orHigher;//yup, it is NT 4 or higher! free(osvi); } } else if (LOBYTE(LOWORD(winVer))<4) ShellType=Win32s;/*Win32s*/ else ShellType=Windoze95;/*Windoze95*/ return ShellType; } static Win32Type g_Shell=IsShellType(); void COfficeXPMenuData::SetAnsiString(LPCSTR szAnsiString) { USES_CONVERSION; SetWideString(A2W(szAnsiString)); //SK: see MFC Tech Note 059 } CString COfficeXPMenuData::GetString(void)//returns the menu text in ANSI or UNICODE //depending on the MFC-Version we are using { CString strText; if (m_szMenuText) { #ifdef UNICODE strText = m_szMenuText; #else USES_CONVERSION; strText=W2A(m_szMenuText); //SK: see MFC Tech Note 059 #endif } return strText; } CTypedPtrArray<CPtrArray, HMENU> COfficeXPMenu::m_AllSubMenus; // Stores list of all sub-menus COfficeXPMenu::COfficeXPMenu() { m_bDynIcons = FALSE; // O.S. - no dynamic icons by default disable_old_style=FALSE; m_iconX = 16; // Icon sizes default to 16 x 16 m_iconY = 15; // ... m_selectcheck = -1; m_unselectcheck = -1; checkmaps=NULL; checkmapsshare=FALSE; // set the color used for the transparent background in all bitmaps m_bitmapBackground=RGB(192,192,192); //gray m_bitmapBackgroundFlag=FALSE; GetCPInfo(CP_ACP,&CPInfo); } COfficeXPMenu::~COfficeXPMenu() { DestroyMenu(); } BOOL COfficeXPMenu::IsNewShell () { return (Windoze95==g_Shell || WinNT4orHigher==g_Shell); } COfficeXPMenuData::~COfficeXPMenuData() { if(bitmap) delete(bitmap); delete[] m_szMenuText; //Need not check for NULL because ANSI X3J16 allows "delete NULL" } void COfficeXPMenuData::SetWideString(const wchar_t *szWideString) { delete[] m_szMenuText;//Need not check for NULL because ANSI X3J16 allows "delete NULL" if (szWideString) { m_szMenuText = new wchar_t[sizeof(wchar_t)*(wcslen(szWideString)+1)]; if (m_szMenuText) wcscpy(m_szMenuText,szWideString); } else m_szMenuText=NULL;//set to NULL so we need not bother about dangling non-NULL Ptrs } BOOL COfficeXPMenu::IsMenu(CMenu *submenu) { int m; int numSubMenus = m_AllSubMenus.GetUpperBound(); for(m=0;m<=numSubMenus;++m) { if(submenu->m_hMenu==m_AllSubMenus[m])return(TRUE); } return(FALSE); } BOOL COfficeXPMenu::IsMenu(HMENU submenu) { int m; int numSubMenus = m_AllSubMenus.GetUpperBound(); for(m=0;m<=numSubMenus;++m) { if(submenu==m_AllSubMenus[m])return(TRUE); } return(FALSE); } BOOL COfficeXPMenu::DestroyMenu() { // Destroy Sub menus: int m,n; int numAllSubMenus = m_AllSubMenus.GetUpperBound(); for(n = numAllSubMenus; n>= 0; n--) { if(m_AllSubMenus[n]==this->m_hMenu)m_AllSubMenus.RemoveAt(n); } int numSubMenus = m_SubMenus.GetUpperBound(); for(m = numSubMenus; m >= 0; m--) { numAllSubMenus = m_AllSubMenus.GetUpperBound(); for(n = numAllSubMenus; n>= 0; n--) { if(m_AllSubMenus[n]==m_SubMenus[m])m_AllSubMenus.RemoveAt(n); } delete((COfficeXPMenu *)FromHandle(m_SubMenus[m])); } m_SubMenus.RemoveAll(); // Destroy menu data int numItems = m_MenuList.GetUpperBound(); for(m = 0; m <= numItems; m++)delete(m_MenuList[m]); m_MenuList.RemoveAll(); if(checkmaps&&!checkmapsshare) { delete checkmaps; checkmaps=NULL; } // Call base-class implementation last: return(CMenu::DestroyMenu()); }; int COfficeXPMenu::GetMenuDrawMode(void) { COLORREF m_newclrBack=GetSysColor((IsNewShell())?COLOR_3DFACE:COLOR_MENU); COLORREF m_clrBack=GetSysColor(COLOR_MENU); BOOL XPflag = m_newclrBack==m_clrBack ? FALSE : TRUE; if(XPflag) return(xp_drawmode); return(original_drawmode); } void COfficeXPMenu::DrawItem (LPDRAWITEMSTRUCT lpDIS) { ASSERT(lpDIS != NULL); COLORREF m_newclrBack=GetSysColor((IsNewShell())?COLOR_3DFACE:COLOR_MENU); COLORREF m_clrBack=GetSysColor(COLOR_MENU); BOOL XPflag = m_newclrBack==m_clrBack ? FALSE : TRUE; CDC* pDC = CDC::FromHandle(lpDIS->hDC); if(pDC->GetDeviceCaps(RASTERCAPS) & RC_PALETTE)DrawItem_Win9xNT2000(lpDIS); else { if(XPflag) { if(xp_drawmode==TYPE_XP) DrawItem_WinXP(lpDIS); else DrawItem_Win9xNT2000(lpDIS); } else { if(original_drawmode==TYPE_XP) DrawItem_WinXP(lpDIS); else DrawItem_Win9xNT2000(lpDIS); } } } void COfficeXPMenu::DrawItem_Win9xNT2000 (LPDRAWITEMSTRUCT lpDIS) { ASSERT(lpDIS != NULL); CDC* pDC = CDC::FromHandle(lpDIS->hDC); CRect rect; UINT state = (((COfficeXPMenuData*)(lpDIS->itemData))->nFlags); CBrush m_brBackground; m_brBackground.CreateSolidBrush(GetSysColor((IsNewShell())?COLOR_3DFACE:COLOR_MENU)); // remove the selected bit if it's grayed out if(lpDIS->itemState & ODS_GRAYED && !original_select_disabled) { if(lpDIS->itemState & ODS_SELECTED)lpDIS->itemState=lpDIS->itemState & ~ODS_SELECTED; } if(state & MF_SEPARATOR) { rect.CopyRect(&lpDIS->rcItem); pDC->FillRect (rect,&m_brBackground); rect.top += (rect.Height()>>1); pDC->DrawEdge(&rect,EDGE_ETCHED,BF_TOP); } else { CRect rect2; BOOL standardflag=FALSE,selectedflag=FALSE,disableflag=FALSE; BOOL checkflag=FALSE; COLORREF crText = GetSysColor(COLOR_MENUTEXT); COLORREF m_clrBack=GetSysColor((IsNewShell())?COLOR_3DFACE:COLOR_MENU); CBrush m_brSelect; CPen m_penBack; int x0,y0,dy; int nIconNormal=-1,xoffset=-1; CImageList *bitmap=NULL; CFont m_fontMenu; LOGFONT m_lf; // set some colors and the font m_penBack.CreatePen (PS_SOLID,0,GetSysColor((IsNewShell())?COLOR_3DFACE:COLOR_MENU)); m_brSelect.CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT)); ZeroMemory ((PVOID) &m_lf,sizeof (LOGFONT)); NONCLIENTMETRICS nm; nm.cbSize = sizeof (NONCLIENTMETRICS); VERIFY (SystemParametersInfo(SPI_GETNONCLIENTMETRICS,nm.cbSize,&nm,0)); m_lf = nm.lfMenuFont; m_fontMenu.CreateFontIndirect (&m_lf); // draw the colored rectangle portion rect.CopyRect(&lpDIS->rcItem); rect2=rect; // draw the up/down/focused/disabled state UINT state = lpDIS->itemState; CString strText; LOGFONT lf; lf = m_lf; CFont dispFont; CFont *pFont=NULL; if(lpDIS->itemData != NULL) { nIconNormal = (((COfficeXPMenuData*)(lpDIS->itemData))->menuIconNormal); xoffset = (((COfficeXPMenuData*)(lpDIS->itemData))->xoffset); bitmap = (((COfficeXPMenuData*)(lpDIS->itemData))->bitmap); strText = ((COfficeXPMenuData*) (lpDIS->itemData))->GetString(); if(state&ODS_CHECKED && nIconNormal<0) { if(state&ODS_SELECTED && m_selectcheck>0)checkflag=TRUE;