Use cygwin to compile windows program example. Get window information. Utilize MHOOK.DLL from masm32 --------- make file to build run make under cygwin ------------ NAME=testGetWindow MASMROOT=/cygdrive/c/masm32 ML=$(MASMROOT)/bin/ml LINK=$(MASMROOT)/BIN/LINK.EXE RC=windres GCC=g++ $(NAME).exe: $(NAME).o $(NAME).res $(GCC) -mwindows $(NAME).o $(NAME).res $(NAME).o: $(NAME).cc $(GCC) -c -o $(NAME).o $(NAME).cc $(NAME).res:$(NAME).rc $(RC) $< -O coff -o $@ -------------- ------------ source code --------------- #include <windows.h> #include <stdio.h> #include <wingdi.h> //#include "dllwrapper.h" class DLLClass { public: DLLClass(const char * dllName); HINSTANCE GetHandle(); ~DLLClass(); private: HINSTANCE HLib; }; static DLLClass MHOOKDLL("testGetWindow.DLL"); DLLClass::DLLClass(const char * dllName) :HLib(NULL) { HLib = LoadLibrary(dllName); } DLLClass::~DLLClass() { if(HLib) { FreeLibrary(HLib); } } HINSTANCE DLLClass::GetHandle() { return HLib; } //--------------------MHOOK.DLL API wrapper ------------------ HWND InstallHook(HWND hwnd) { HINSTANCE hLib = MHOOKDLL.GetHandle(); if(!hLib) { return NULL; } FARPROC WINAPI f= GetProcAddress(hLib, "InstallHook"); if(!f){ return NULL; } typedef HWND (*FPTYPE)(HWND); FPTYPE fp=(FPTYPE)f; return (*fp)(hwnd); } void UninstallHook() { HINSTANCE hLib = MHOOKDLL.GetHandle(); if(!hLib) { return; } FARPROC WINAPI f= GetProcAddress(hLib, "UninstallHook"); if(!f){ return; } typedef void (*FPTYPE)(); FPTYPE fp=(FPTYPE)f; return (*fp)(); } #define MYMSG(str) MessageBox(NULL,str, "MsgBox waring", MB_OK); #define STR(s) #define IDD_MAINDLG 101 #define IDC_CLASSNAME 1000 #define IDC_HANDLE 1001 #define IDC_WNDPROC 1002 #define IDC_HOOK 1004 #define IDC_EXIT 1005 #define IDC_MYTRACE 1006 #define IDC_OWNER 1011 #define IDC_PARENT 1012 #define IDC_CHILD 1013 #define IDC_FIRST 1014 #define IDC_PREV 1015 #define IDC_NEXT 1016 #define IDC_LAST 1017 #define WM_MOUSEHOOK WM_USER+6 // Global variable int cntMessages = 0; BOOL HookFlag = FALSE; HHOOK hHook = NULL; HINSTANCE hInstance=NULL; HWND hEdit = NULL; HWND hLineEdit[3]; // Function prototypes. int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int); BOOL CALLBACK DlgWndProc(HWND hwnd, UINT Msg, WPARAM wParam, LPARAM lParam); void MessageToString (UINT msg, char * output); void UpdateDialogItem(HWND hdlg, UINT item, const char * input); void UpdateDialogItem(HWND hdlg, UINT item, const char* input) { static char buffer[128]; GetDlgItemText(hdlg,item,buffer,128); if(lstrcmpi(buffer,input)!=0) SetDlgItemText(hdlg,item,input); } // output void MessageToString (UINT msg, char * output) { // 0 -15 0 1 2 3 4 5 6 7 8 9 a b c d e f static const char* strmap[]={"NULL", "1:CREATE", "2:DESTROY", "3:MOVE", "4:UNKNOWN", "5:SIZE", "6:ACTIVE", "SETFPCUS","KILLFOCUS","??","ENABLE","SETREDRAW","SETTEXT","GETTEXT","GETTEXTLENGTH","PAINT" }; //{"0:","1:", "2:","3:","4:","5:","6:","7:","8:","9:","A:","B:","C:","D:","E:","F:", } if((0<= msg) && (msg <= 15) ) { sprintf(output,"%lx:WM_%s",msg,strmap[msg]); } else if(15< msg < 0x100) { sprintf(output,"%lx:WM_??",msg); } else { sprintf(output,"%lx:??",msg); } } BOOL CALLBACK DlgWndProc(HWND hwnd, UINT Msg, WPARAM wParam, LPARAM lParam) { switch(Msg) { case WM_DESTROY: { if(HookFlag)UninstallHook (); EndDialog(hwnd,0); //break; } case WM_INITDIALOG: { hEdit=GetDlgItem( hwnd, IDC_MYTRACE); hLineEdit[0] = GetDlgItem( hwnd, IDC_CLASSNAME); hLineEdit[1] = GetDlgItem( hwnd, IDC_HANDLE); hLineEdit[2] = GetDlgItem( hwnd, IDC_WNDPROC); break; } case WM_PAINT: { //SetDlgItemText(hwnd,IDC_MYTRACE,"testing \r\n aaar\n\r\n\r\n"); break; } case WM_COMMAND: { int bn = HIWORD(wParam); int id = LOWORD(wParam); if((IDC_HOOK==id) && (bn==BN_CLICKED)) { if(!HookFlag) { HWND h=InstallHook(hwnd); if(h) { HookFlag = TRUE; SetDlgItemText(hwnd,IDC_HOOK,"UnHook"); cntMessages = 0; } } else { UninstallHook(); SetDlgItemText(hwnd,IDC_HOOK,"Hook"); HookFlag = FALSE; } } break; } case WM_MOUSEHOOK: { CWPSTRUCT cwp; //cwp.lParam = lParam; //cwp.wParam = wParam; //cwp.message = GetHookedMessage(); cwp.hwnd = (HWND)wParam; //GetHookedHWnd(); /* if( (hEdit != cwp.hwnd) && (cwp.message !=WM_SETTEXT) && (cwp.message !=WM_GETTEXT) && (cwp.hwnd != hLineEdit[0]) && (cwp.hwnd != hLineEdit[1]) && (cwp.hwnd!=hLineEdit[2]) && (cwp.message != EM_REPLACESEL) &&(cntMessages <10000) ) */ if(TRUE) { static char str[200]; static char buffer[200]; GetDlgItemText(hwnd,IDC_HANDLE,buffer,128); wsprintf(str,"%lx",cwp.hwnd); if(lstrcmpi(str, buffer)!=0) SetDlgItemText(hwnd,IDC_HANDLE,str); GetDlgItemText(hwnd,IDC_CLASSNAME,buffer,128); GetClassName(cwp.hwnd,str,128); if(lstrcmpi(buffer,str)!=0) SetDlgItemText(hwnd,IDC_CLASSNAME,str); GetDlgItemText(hwnd,IDC_WNDPROC,buffer,128); wsprintf(str,"%lx",GetClassLong(cwp.hwnd,GCL_WNDPROC)); if(lstrcmpi(buffer,str)!=0) SetDlgItemText(hwnd,IDC_WNDPROC,str); // GW_HWNDNEXT 2 GW_HWNDPREV 3 GW_CHILD 5 GW_HWNDFIRST 0 GW_HWNDLAST 1 GW_OWNER 4 const UINT GWMAP[6]={IDC_FIRST,IDC_LAST,IDC_NEXT,IDC_PREV,IDC_OWNER,IDC_CHILD}; wsprintf(str,"%x",GetParent(cwp.hwnd)); UpdateDialogItem(hwnd, IDC_PARENT ,str); for(int i=0;i<6;i++) { wsprintf(str,"%x",GetWindow(cwp.hwnd,i)); UpdateDialogItem(hwnd, GWMAP[i] ,str); } HWND a=cwp.hwnd; //static char str[128]; //static char buffer[128]; sprintf(str,"hwnd:%x ",cwp.hwnd); do{ a=GetParent(a); sprintf(buffer,"-> %x ",a); strcat(str,buffer); }while(a!=NULL); UpdateDialogItem(hwnd, IDC_MYTRACE, str); //if (cntMessages <100) if(FALSE) { HWND parent, child,first,last,next,prev,owner; parent = GetParent(cwp.hwnd); child = GetWindow(cwp.hwnd,GW_CHILD); first = GetWindow(cwp.hwnd,GW_HWNDFIRST); last = GetWindow(cwp.hwnd,GW_HWNDLAST); next = GetWindow(cwp.hwnd,GW_HWNDNEXT); prev = GetWindow(cwp.hwnd,GW_HWNDPREV); owner = GetWindow(cwp.hwnd,GW_OWNER); char tmp[100];tmp[20]='\0'; MessageToString(cwp.message, tmp); sprintf(str,"hwnd:%lx m:%s pc:%x,%x fl:%x,%x np:%x,%x o:%x wl:%lx,%lx \r\n", cwp.hwnd, tmp, parent,child, first,last, next,prev, owner, wParam,lParam); SendMessage(hEdit,EM_REPLACESEL ,0, (LPARAM)str); } cntMessages++; } break; } default: { DefWindowProc(hwnd, Msg, wParam, lParam); } } //endof switch return 0L; } // Application entry point. int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { //HINSTANCE hinst=GetModuleHandle(NULL); hInstance = hinstance; DialogBoxParam(hinstance,MAKEINTRESOURCE(IDD_MAINDLG),NULL, DlgWndProc,0); ExitProcess(0); } #---------- rc file -------- #include <winuser.h> #define IDD_MAINDLG 101 #define IDC_CLASSNAME 1000 #define IDC_HANDLE 1001 #define IDC_WNDPROC 1002 #define IDC_HOOK 1004 #define IDC_EXIT 1005 #define IDC_MYTRACE 1006 #define IDC_OWNER 1011 #define IDC_PARENT 1012 #define IDC_CHILD 1013 #define IDC_FIRST 1014 #define IDC_PREV 1015 #define IDC_NEXT 1016 #define IDC_LAST 1017 #define IDC_STATIC -1 /* #define DS_MODALFRAME 0x80 #define WS_POPUP 0x80000000 #define WS_CAPTION 0xC00000 #define WS_SYSMENU 0x80000 #define ES_AUTOHSCROLL 0x80 #define ES_AUTOVSCROLL 0x40 #define ES_READONLY 0x800 #define ES_MULTILINE 0x4 */ IDD_MAINDLG DIALOG DISCARDABLE 0, 0, 229, 220 STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU |WS_MINIMIZEBOX CAPTION "Mouse Hook Demo" FONT 8, "MS Sans Serif" BEGIN GROUPBOX "Window Information",IDC_STATIC,7,7,214,67 LTEXT "Class name:",IDC_STATIC,21,22,39,8 EDITTEXT IDC_CLASSNAME,69,20,139,12,ES_AUTOHSCROLL | ES_READONLY LTEXT "Handle:",IDC_STATIC,33,37,26,8 EDITTEXT IDC_HANDLE,69,36,77,12,ES_AUTOHSCROLL | ES_READONLY LTEXT "Window Proc:",IDC_STATIC,13,52,46,8 EDITTEXT IDC_WNDPROC,69,51,77,12,ES_AUTOHSCROLL | ES_READONLY DEFPUSHBUTTON "&Hook",IDC_HOOK,159,35,50,14 PUSHBUTTON "E&xit",IDC_EXIT,159,50,50,14 EDITTEXT IDC_PARENT,55,75,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_CHILD,105,75,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_OWNER,5,75,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_FIRST,5,90,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_PREV,60,90,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_NEXT,110,90,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_LAST,150,90,40,12,ES_AUTOHSCROLL | ES_READONLY EDITTEXT IDC_MYTRACE,12,102,200,112,ES_AUTOHSCROLL |ES_AUTOVSCROLL |ES_READONLY |ES_MULTILINE END