移动桌面图标位置
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头文件：
//用户索引: 假使桌面有N个图标， 则桌面从左到右，从上到下，分配从0到N-1的索引。//系统索引: 桌面的N个图标，对应着桌面的listview控件中的N个ITEM，该索引用于控制该控件中的ITEM#ifndef __SETICONPOS_H__#define __SETICONPOS_H__#include <map>#include <list>#include <string>#include <tchar.h>#include <Windows.h>class CSetIconPath{public: CSetIconPath(); virtual ~CSetIconPath();private: CSetIconPath(const CSetIconPath&); void operator=(const CSetIconPath&);private: //获取桌面listview控件的句柄 HWND GetDesktopListView(); //获取桌面排列方式 void GetDesktopArrangeMode(); //获取系统索引与图标的映射和图标列表 void GetSysIndexMap(HWND hwndSysListView32, std::map<DWORD,std::pair<std::wstring,POINT>*>& SysIndexMapIcon); //获取用户索引与图标的映射、用户索引跟系统索引的映射、图标列表 void GetUserIndexMap(const std::map<DWORD,std::pair<std::wstring,POINT>*> &SysIndexMapIcon, std::map<DWORD,std::pair<std::wstring,POINT>*> &UserIndexMapIcon, std::map<DWORD,DWORD> &UserIndexMapSysIndex, std::list<std::pair<std::wstring,POINT>*> &IconList); //根据用户索引图标映射，判断图标要移动的目标位置 UINT32 GetDesUserIndex(const std::map<DWORD,std::pair<std::wstring,POINT>*> &UserIndexMapIcon); //用于m_iconList的排序，由此而获得UserIndex static bool UserIndexSort(std::pair<std::wstring,POINT>* &p1, std::pair<std::wstring,POINT>* &p2); enum MOVE_MODE{ MOVE_UP_1_PIX, //移动到目标位置向上一个像素 MOVE_EXACT, //移动到目标位置上 MOVE_DOWN_1_PIX//移动到目标位置向下一个像素点 }; //移动SRC用户索引图标到DES用户索引图标的位置上 void MoveSetp(UINT32 SrcUserIndex,UINT32 DesUserIndex, MOVE_MODE mode=MOVE_EXACT); void Shell_MoveStep(UINT32 SrcUserIndex,UINT32 DesUserIndex, MOVE_MODE mode=MOVE_EXACT); //实现移动图标的具体操作 void MoveIconPos(UINT32 SrcUserIndex,UINT32 DesUserIndex); private: //要移动的图标的用户索引 UINT32 m_nSelfUserIndex; //要移动的目标位置的用户索引 UINT32 m_nDesUserIndex; //桌面listview控件的句柄 HWND m_hwndSysListView32; //用户索引跟系统索引的映射 std::map<DWORD,DWORD> m_UserIndexMapSysIndex; //桌面图标列表 std::list<std::pair<std::wstring,POINT>*> m_iconList; //用户索引与桌面图标的映射 std::map<DWORD,std::pair<std::wstring,POINT>*> m_UserIndexMapIcon; //系统索引与桌面图标的映射 std::map<DWORD,std::pair<std::wstring,POINT>*> m_SysIndexMapIcon; //是否自动排列图标; bool m_bAutoArrange; //是否对其到网格 bool m_bSnapToGrid;};#endif
cpp文件：
#include "SetIconPos.h"#include <CommCtrl.h>CSetIconPath::CSetIconPath(): m_nSelfUserIndex(-1), m_nDesUserIndex(-1), m_hwndSysListView32(NULL), m_bSnapToGrid(false), m_bAutoArrange(false){};CSetIconPath::~CSetIconPath(){ for (std::list<std::pair<std::wstring,POINT>*>::iterator iter = m_iconList.begin(); iter!=m_iconList.end(); ++iter) { delete (std::pair<std::wstring,POINT>*)(*iter); }}UINT32 CSetIconPath::GetDesUserIndex(const std::map<DWORD,std::pair<std::wstring,POINT>*> &UserIndexMapIcon){ return 2;}bool CSetIconPath::UserIndexSort(std::pair<std::wstring,POINT>* &p1, std::pair<std::wstring,POINT>* &p2){ if (p1->second.x<p2->second.x) { return true; } else if (p1->second.x==p2->second.x) { return p1->second.y<p2->second.y; } else { return false; }}void CSetIconPath::GetUserIndexMap(const std::map<DWORD,std::pair<std::wstring,POINT>*> &SysIndexMapIcon, std::map<DWORD,std::pair<std::wstring,POINT>*> &UserIndexMapIcon, std::map<DWORD,DWORD> &UserIndexMapSysIndex, std::list<std::pair<std::wstring,POINT>*> &IconList){ UserIndexMapIcon.clear(); UserIndexMapSysIndex.clear(); IconList.clear(); std::map<std::pair<std::wstring,POINT>*,DWORD> IconMapSysIndex; for (std::map<DWORD,std::pair<std::wstring,POINT>*>::const_iterator citer = SysIndexMapIcon.begin(); citer!=SysIndexMapIcon.end(); ++citer) { IconList.push_back(citer->second); IconMapSysIndex[citer->second] = citer->first; } IconList.sort(CSetIconPath::UserIndexSort); DWORD dwUserIndex = -1; for (std::list<std::pair<std::wstring,POINT>*>::const_iterator citer=IconList.begin(); citer!=IconList.end(); ++citer) { UserIndexMapIcon[++dwUserIndex] = *citer; UserIndexMapSysIndex[dwUserIndex] = IconMapSysIndex[*citer]; }};HWND CSetIconPath::GetDesktopListView(){ HWND hwndParent = NULL; HWND hwndSHELLDLL_DefView = NULL; HWND hwndSysListView32 = NULL; hwndParent = ::FindWindowEx(NULL, hwndParent, _T("progman"), _T("program manager")); if (!(hwndSHELLDLL_DefView = ::FindWindowEx(hwndParent,hwndSHELLDLL_DefView, _T("shelldll_defview"), NULL ))||\ !(hwndSysListView32 = ::FindWindowEx( hwndSHELLDLL_DefView, NULL, _T("syslistview32"), _T("folderview") ))) { hwndParent = ::FindWindowEx(NULL, NULL, _T("workerw"), NULL ); hwndSHELLDLL_DefView = NULL; hwndSysListView32 = NULL; do { hwndSHELLDLL_DefView = ::FindWindowEx(hwndParent,hwndSHELLDLL_DefView, _T( "shelldll_defview"), NULL ); if (!hwndSHELLDLL_DefView) continue; hwndSysListView32 = ::FindWindowEx( hwndSHELLDLL_DefView, NULL, _T("syslistview32"), _T("folderview") ); if (!hwndSysListView32) continue; else break; }while(hwndParent=::FindWindowEx(NULL, hwndParent, _T("workerw"), NULL )); } return hwndSysListView32;} void CSetIconPath::GetSysIndexMap(HWND hwndSysListView32, std::map<DWORD,std::pair<std::wstring,POINT>*>& SysIndexMapIcon){ SysIndexMapIcon.clear(); DWORD dwPid = 0; GetWindowThreadProcessId(hwndSysListView32,&dwPid); HANDLE hProcess=OpenProcess(PROCESS_VM_READ|PROCESS_VM_OPERATION|PROCESS_VM_WRITE,false,dwPid); if (hProcess==INVALID_HANDLE_VALUE) { return ; } DWORD dwIconCount = ListView_GetItemCount(hwndSysListView32); LVITEM *plvitem=(LVITEM*)VirtualAllocEx(hProcess, NULL, sizeof(LVITEM),MEM_COMMIT, PAGE_READWRITE); TCHAR *pszName=(TCHAR*)VirtualAllocEx(hProcess, NULL, MAX_PATH*sizeof(TCHAR),MEM_COMMIT, PAGE_READWRITE); POINT *ppt=(POINT*)VirtualAllocEx(hProcess, NULL, sizeof(POINT),MEM_COMMIT, PAGE_READWRITE); LVITEM lv={0}; lv.cchTextMax=MAX_PATH*sizeof(TCHAR); lv.pszText=pszName; WriteProcessMemory(hProcess,plvitem,&lv,sizeof(LVITEM),NULL); TCHAR szName[MAX_PATH]; POINT pt={0}; for (DWORD dwIndex=0;dwIndex<dwIconCount;++dwIndex) { SendMessage(hwndSysListView32,LVM_GETITEMTEXT,dwIndex,(LPARAM)plvitem); ReadProcessMemory(hProcess,pszName,szName,sizeof(szName),NULL); SendMessage(hwndSysListView32,LVM_GETITEMPOSITION,dwIndex,(LPARAM)ppt); ReadProcessMemory(hProcess,ppt,&pt,sizeof(POINT),NULL); SysIndexMapIcon[dwIndex] = new std::pair<std::wstring,POINT>(std::make_pair(std::wstring(szName),pt));; } VirtualFreeEx(hProcess, plvitem, 0, MEM_RELEASE); VirtualFreeEx(hProcess, pszName, 0, MEM_RELEASE); VirtualFreeEx(hProcess, ppt, 0, MEM_RELEASE); CloseHandle(hProcess); } void CSetIconPath::MoveSetp(UINT32 SrcUserIndex,UINT32 DesUserIndex, MOVE_MODE mode) { std::map<DWORD,DWORD>::iterator iter1 = m_UserIndexMapSysIndex.find(SrcUserIndex); std::map<DWORD,std::pair<std::wstring,POINT>*>::iterator iter2 = m_UserIndexMapIcon.find(DesUserIndex); if (iter1==m_UserIndexMapSysIndex.end()|| iter2==m_UserIndexMapIcon.end()) { return ; } UINT32 nSrcSysIndex = iter1->second; POINT pt = iter2->second->second; if (mode==MOVE_UP_1_PIX) { pt.y-=1; } else if (mode==MOVE_DOWN_1_PIX) { pt.y+=1; } ListView_SetItemPosition(m_hwndSysListView32,nSrcSysIndex,pt.x,pt.y); } //void CSetIconPath::Shell_MoveStep(UINT32 SrcUserIndex,UINT32 DesUserIndex, MOVE_MODE mode) //{ // std::map<DWORD,std::pair<std::wstring,POINT>*>::iterator iterSrc = m_UserIndexMapIcon.find(SrcUserIndex); // std::map<DWORD,std::pair<std::wstring,POINT>*>::iterator iterDes = m_UserIndexMapIcon.find(DesUserIndex); // if (iterSrc==m_UserIndexMapIcon.end()|| // iterDes==m_UserIndexMapIcon.end()) // { // return ; // } //}void CSetIconPath::GetDesktopArrangeMode(){#ifndef LVS_EX_SNAPTOGRID #define LVS_EX_SNAPTOGRID 0x00080000#endif DWORD dwIconCount = ListView_GetItemCount(m_hwndSysListView32); DWORD dwStyle = GetWindowLong(m_hwndSysListView32,GWL_STYLE); DWORD dwExStyle = ListView_GetExtendedListViewStyle(m_hwndSysListView32); m_bAutoArrange = ((dwStyle&LVS_AUTOARRANGE)==LVS_AUTOARRANGE); m_bSnapToGrid = ((dwExStyle&LVS_EX_SNAPTOGRID)==LVS_EX_SNAPTOGRID);}void CSetIconPath::MoveIconPos(UINT32 SrcUserIndex,UINT32 DesUserIndex){ SendMessage(m_hwndSysListView32, WM_SETREDRAW, FALSE, 0); if (m_nSelfUserIndex<m_nDesUserIndex) //move backward { //1.move (nSelf+1)~nPos forward //2.move self to des UINT32 nStart = 0; if (m_bSnapToGrid) { nStart = m_nSelfUserIndex+1; for (;nStart<=m_nDesUserIndex;++nStart) { MoveSetp(nStart,nStart-1,MOVE_UP_1_PIX); if (nStart==m_nDesUserIndex) { break; } } MoveSetp(m_nSelfUserIndex,m_nDesUserIndex,MOVE_EXACT); } else { nStart = m_nSelfUserIndex+1; for (;nStart<=m_nDesUserIndex;++nStart) { MoveSetp(nStart,nStart-1,MOVE_EXACT); if (nStart==m_nDesUserIndex) { break; } } MoveSetp(m_nSelfUserIndex,m_nDesUserIndex,MOVE_EXACT); } } else if (m_nSelfUserIndex>m_nDesUserIndex) //move forward { //1. move self to the destination //2. move (nSelfPos-1)~nPos backward UINT32 nStart = 0; if (m_bSnapToGrid) { MoveSetp(m_nSelfUserIndex,m_nDesUserIndex,MOVE_UP_1_PIX); //if need keep origin layout nStart = m_nSelfUserIndex-1; for (;nStart>=m_nDesUserIndex;--nStart) { MoveSetp(nStart,nStart+1,MOVE_EXACT); if (nStart==m_nDesUserIndex) { break; } } } else { MoveSetp(m_nSelfUserIndex,m_nDesUserIndex,MOVE_EXACT); nStart = m_nSelfUserIndex-1; for (;nStart>=m_nDesUserIndex;--nStart) { MoveSetp(nStart,nStart+1,MOVE_EXACT); if (nStart==m_nDesUserIndex) { break; } } } } SendMessage(m_hwndSysListView32, WM_SETREDRAW, TRUE, 0) ; ::UpdateWindow(m_hwndSysListView32);}
main文件
#include "SetIconPos.h"int _tmain(int argc, TCHAR **argv){ DWORD dw1 = GetTickCount(); CSetIconPath * p = new CSetIconPath; while(true) { p->MoveIconPos(0,8); //Sleep(100); } _tprintf(_T("use %d ms\n"),GetTickCount()-dw1); return 0;}
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