C语言获取进程路径：使用Win32 API实现

#include <windows.h> #include <tlhelp32.h> //需要包含tlhelp32.h头文件

// 获取指定进程的路径 BOOL GetProcessPathByName(const WCHAR* processName, WCHAR* processPath, DWORD processPathLength) { HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); if (snapshot == INVALID_HANDLE_VALUE) { return FALSE; }

PROCESSENTRY32 processEntry = { 0 };
processEntry.dwSize = sizeof(PROCESSENTRY32);

if (Process32First(snapshot, &processEntry))
{
    do
    {
        if (wcscmp(processEntry.szExeFile, processName) == 0)
        {
            wcscpy_s(processPath, processPathLength, processEntry.szExeFile);
            PathRemoveFileSpec(processPath);
            PathAddBackslash(processPath);
            wcscat_s(processPath, processPathLength, processName);
            CloseHandle(snapshot);
            return TRUE;
        }
    } while (Process32Next(snapshot, &processEntry));
}

CloseHandle(snapshot);
return FALSE;

}

int main() { WCHAR processName[] = L"notepad.exe"; WCHAR processPath[MAX_PATH] = { 0 };

if (GetProcessPathByName(processName, processPath, MAX_PATH))
{
    wprintf(L"The path of %s is %s\n", processName, processPath);
}
else
{
    wprintf(L"Failed to get the path of %s\n", processName);
}

return 0;

}

这段代码演示了如何使用Windows API中的CreateToolhelp32Snapshot和Process32First/Process32Next函数来遍历系统中所有的进程，并且通过进程名称进行匹配，最终获取到进程路径。