如何通过编程方式从进程HWND获取句柄ID？

Question

我尝试获取打开的应用程序（窗口）的句柄ID。

我运行Window detective程序（如spy ++）来验证我得到了正确的值。

为了测试我试图让只有一个句柄ID由红色箭头指向（见图片）：

所以我有计划，让我的进程ID和线程ID，但不是第一个孩子把手ID。

在我来说，我把calc.exe，但实际上我需要做的所有exe应用：

readWindow.c

#include <windows.h> 
#include <stdio.h> 
#include <stddef.h> 
#include <inttypes.h> 
#include <tchar.h> 
#include <psapi.h> 

HMODULE getModulePid(DWORD processID, char* searchStr){ // gets the module by the module name from an explicit process 

    HANDLE hProcess; 
    HMODULE hMods[1024]; 
    TCHAR szModName[MAX_PATH]; 
    DWORD cbNeeded; 

    if(hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID)) 
    { 
    if(EnumProcessModules(hProcess, hMods, sizeof(hMods), &cbNeeded)) 
    { 
    unsigned int k; 
    for(k = 0; k < (cbNeeded/sizeof(HMODULE)); ++k) 
    { 
     if (GetModuleFileNameEx(hProcess, hMods[k], szModName, sizeof(szModName)/sizeof(TCHAR))) 
     { 

     //printf("fess pid: %u modname: %s\n", processID, szModName); 

     if(strstr(szModName, searchStr)) 
     { 
      printf("pid: &#37;u modname: %s\n", processID, szModName); 
      CloseHandle(hProcess); 
      return hMods[k]; 
     } 
     } 
    }//for 
    }  
} 
    CloseHandle(hProcess); 
    return NULL; 
} 

HMODULE getModule(char* searchStr){ // gets the module by the modul name from all processes 
    DWORD aProcesses[1024], cbNeeded, cProcesses; 

    if (!EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded)) return NULL; 
    cProcesses = cbNeeded/sizeof(DWORD); 

    HMODULE hmodule; 
    unsigned int i; 
    for (i = 0; i < cProcesses; ++i) 
    { 
     if(hmodule = getModulePid(aProcesses[i], searchStr)) 
     { 
     return hmodule; 
      } 
     } 
    return NULL; 
} 


HMODULE getModuleHwnd(HWND hwnd){ // gets the module from a window 
    DWORD pid; 
    DWORD tid = GetWindowThreadProcessId(hwnd, &pid); // !!??!! 
    printf("hwnd tid: %u\n", tid ); 
    printf("hwnd pid: %u\n", pid ); 
    return getModulePid(pid, ".exe"); 
} 

HMODULE hModuleT; 
char* searchStrT; 

BOOL CALLBACK shownWindow(HWND hwnd, LPARAM lParam){ // EnumWindows callback 
    if(hModuleT) return TRUE; 

    char pcWinTitle[256]; 

    if(GetWindow(hwnd, GW_OWNER)) return TRUE; // whats that? 
    GetWindowText(hwnd, pcWinTitle, 1024); 
    if(strstr(pcWinTitle, searchStrT)){ 
     printf("wndtitle: %s\n", pcWinTitle);          
     hModuleT = getModuleHwnd(hwnd); 
    } 

    return TRUE; 
} 

HMODULE getModuleByWndTitle(char* searchStr){ // gets the module from a window title 
    searchStrT = searchStr; 
    EnumWindows(shownWindow, 0); 
    return hModuleT; 
} 


int main() 
{ 

    //EnumWindows(EnumWindowsProc, 0); 

    printf("find by name ... \n"); 
    getModule("calc.exe"); 
    printf("\nfind by title ... \n"); 
    getModuleByWndTitle("Calculator"); 

    printf("Done"); 


    return 0; 
} 

运行从minGW：

$ gcc -L/local/lib -I/local/include -o readWindow readWindow.c -lpsapi

输出：

find by title ... 
wndtitle: Calculator 
hwnd tid: 33364 
hwnd pid: 25440 
Done 

我怎样才能从流程的处理？

我确定它应该是一些1-2行的代码。

DWORD dwValue ..... 

printf("The value in hexa: 0X%.8X(%d).\n", dwValue); 

应该0x007B137C

从谍照++我需要这个值，红色箭头：

Answer 1

这是很容易，但对我来说麻烦一些。

我只需要打印指针HWND hwnd与%p。

所以我加入到我的代码：

char szBuff[512]; 
sprintf(szBuff, "%p", hwnd); 

printf("Found .... hWnd: %s\n", szBuff); 

，并得到我所需要的：

Found .... hWnd: 007B137C 

[编辑]

工作的代码示例：

readWindow .c

#include <windows.h> 
#include <stdio.h> 
#include <stddef.h> 
#include <inttypes.h> 
#include <tchar.h> 
#include <psapi.h> 

HMODULE getModulePid(DWORD processID, char* searchStr){ // gets the module by the module name from an explicit process 

    HANDLE hProcess; 
    HMODULE hMods[1024]; 
    TCHAR szModName[MAX_PATH]; 
    DWORD cbNeeded; 

    if(hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID)) 
    { 
    if(EnumProcessModules(hProcess, hMods, sizeof(hMods), &cbNeeded)) 
    { 
    unsigned int k; 
    for(k = 0; k < (cbNeeded/sizeof(HMODULE)); ++k) 
    { 
     if (GetModuleFileNameEx(hProcess, hMods[k], szModName, sizeof(szModName)/sizeof(TCHAR))) 
     { 

     //printf("fess pid: %u modname: %s\n", processID, szModName); 

     if(strstr(szModName, searchStr)) 
     { 
      printf("pid: &#37;u modname: %s\n", processID, szModName); 
      CloseHandle(hProcess); 
      return hMods[k]; 
     } 
     } 
    }//for 
    }  
} 
    CloseHandle(hProcess); 
    return NULL; 
} 

HMODULE getModule(char* searchStr){ // gets the module by the modul name from all processes 
    DWORD aProcesses[1024], cbNeeded, cProcesses; 

    if (!EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded)) return NULL; 
    cProcesses = cbNeeded/sizeof(DWORD); 

    HMODULE hmodule; 
    unsigned int i; 
    for (i = 0; i < cProcesses; ++i) 
    { 
     if(hmodule = getModulePid(aProcesses[i], searchStr)) 
     { 
     return hmodule; 
      } 
     } 
    return NULL; 
} 


HMODULE getModuleHwnd(HWND hwnd){ // gets the module from a window 
    DWORD pid; 
    DWORD tid = GetWindowThreadProcessId(hwnd, &pid); // !!??!! 
    printf("hwnd tid: %u\n", tid ); 
    printf("hwnd pid: %u\n", pid ); 
    return getModulePid(pid, ".exe"); 
} 

HMODULE hModuleT; 
char* searchStrT; 

BOOL CALLBACK shownWindow(HWND hwnd, LPARAM lParam){ // EnumWindows callback 
    if(hModuleT) return TRUE; 

    char pcWinTitle[256]; 

    if(GetWindow(hwnd, GW_OWNER)) return TRUE; // whats that? 
    GetWindowText(hwnd, pcWinTitle, 1024); 

    if(strstr(pcWinTitle, searchStrT)) 
    { 
     printf("wndtitle: %s\n", pcWinTitle);          
     hModuleT = getModuleHwnd(hwnd); 

     char szBuff[512]; 
     sprintf(szBuff, "%p", hwnd); 

     printf("Found .... hWnd: %s\n", szBuff); 

    } 

    return TRUE; 
} 

HMODULE getModuleByWndTitle(char* searchStr){ // gets the module from a window title 
    searchStrT = searchStr; 
    EnumWindows(shownWindow, 0); 
    return hModuleT; 
} 


int main() 
{ 

    //EnumWindows(EnumWindowsProc, 0); 

    printf("find by name ... \n"); 
    getModule("calc.exe"); 
    printf("\nfind by title ... \n"); 
    getModuleByWndTitle("Calculator"); 

    printf("Done"); 


    return 0; 
}