CreateToolhelp32Snapshot 按名称查ID？？
我按网上的资料写了一个按名称查进程ID,但是总是返回的是内存中没有进程，即（Process32First(handle, ref info)一直返回是0）我确定我PDA（MC35--WM6）中是有进程的
[DllImport("toolhelp.dll")]private static extern int Process32First(IntPtr hSnapshot, ref PROCESSENTRY32 lppe);[DllImport("toolhelp.dll")]private static extern int Process32Next(IntPtr hSnapshot,ref PROCESSENTRY32 lppe);[DllImport("toolhelp.dll", SetLastError = true)]private static extern IntPtr CreateToolhelp32Snapshot(uint dwFlags,uint th32ProcessID);private const uint TH32CS_SNAPPROCESS = 0x00000002;[StructLayout(LayoutKind.Sequential)]private struct PROCESSENTRY32{ public uint dwSize; public uint cntUsage; public uint th32ProcessID; public IntPtr th32DefaultHeapID; public uint th32ModuleID; public uint cntThreads; public uint th32ParentProcessID; public int pcPriClassBase; public uint dwFlags; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] public string szExeFile;}private void button1_Click(object sender, EventArgs e){ IntPtr handle = IntPtr.Zero; try { handle = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); PROCESSENTRY32 info = new PROCESSENTRY32(); info.dwSize = (uint)Marshal.SizeOf(typeof(PROCESSENTRY32)); int first = Process32First(handle, ref info); if (first == 0) MessageBox.Show("no pr"); else { do { if (string.Compare(info.szExeFile,"CamWedge.exe", true) == 0) MessageBox.Show("yes"); } while (Process32Next(handle, ref info) != 0); } } catch { throw; }}