SDK operation list-View Control instance -- Process Traversal

Traverse the window to obtain the control handle

1 EnumChildWindows(hwndDlg, (WNDENUMPROC)EnumChildProc, NULL);

Callback Function

1 bool callback enumchildproc (hwnd, lparam) 2 {3 char strclsname [maxbyte] = {0}; 4 getclassname (hwnd, strclsname, maxbyte ); 5 If (strcmp (strclsname, "syslistview32") = 0) // find the list control 6 {7 insertcolumn (hwnd); // Add the Title 8 enumprogress (hwnd ); // Add content 9 return true; // end traversal 10} 11 12 Return false; // continue traversing the subwindow 13}

Add title

1 void insertcolumn (hwnd hlist) 2 {3 lv_column LVC = {0}; 4 5 LVC. mask = lvcf_text | lvcf_width; 6 LVC. psztext = "PID"; 7 LVC. cx = 80; 8 sendmessage (hlist, lvm_insertcolumn, 0, (long) & LVC); 9 LVC. psztext = "parent process PID"; 10 LVC. cx = 100; 11 sendmessage (hlist, lvm_insertcolumn, 1, (long) & LVC); 12 LVC. psztext = "image name"; 13 LVC. cx = 200; 14 sendmessage (hlist, lvm_insertcolumn, 2, (long) & LVC); 15}

Add content

1 bool enumprogress (hwnd hlist) 2 {3 bool Bret = false; 4 handle hprocesssnap = NULL; 5 6 hprocesssnap = createconlhelp32snapshot (th32cs_snapprocess, 0); 7 if (hprocesssnap = callback) 8 {9 return false; 10} 11 12 processentry32 pe32 = {0}; 13 pe32.dwsize = sizeof (processentry32); 14 if (process32first (hprocesssnap, & pe32 )) 15 {16 lvitem LVI = {0}; 17 LVI. mask = lvif_text; 18 char strtmp [maxbyte] = {0}; 19 do 20 {21 zeromemory (strtmp, maxbyte); 22 sprintf (strtmp, "% d", pe32.th32processid ); 23 LVI. iItem = 0; 24 LVI. isubitem = 0; // when the lvm_insertitem message is sent, the subitem must be 025 LVI. psztext = strtmp; 26 int nindx = sendmessage (hlist, lvm_insertitem, 0, (lparam) & LVI); // the return value is the index of item 27 28 zeromemory (strtmp, maxbyte ); 29 sprintf (strtmp, "% d", pe32.th32parentprocessid); 30 LVI. iItem = nindx; 31 LVI. isubitem = 1; 32 LVI. psztext = strtmp; 33 sendmessage (hlist, lvm_setitem, 0, (lparam) & LVI); 34 35 LVI. isubitem = 2; 36 LVI. iItem = nindx; 37 LVI. psztext = pe32.szexefile; 38 sendmessage (hlist, lvm_setitem, 0, (lparam) & LVI); 39} 40 while (process32next (hprocesssnap, & pe32); 41 Bret = true; 42} 43 else 44 {45 Bret = false; 46} 47 48 closehandle (hprocesssnap); 49 return Bret; 50}