原文:获取当前进程（措施）主窗体句柄并设置wpf的父窗体为此句柄
有时候在c++挪用wpf控件的时候，wpf控件想本身显示窗体，但需要设置owner属性。迂回解决步伐是设置wpf的window窗体的父窗体为进程的句柄。
1.获取当前进程id
int id = Process.GetCurrentProcess().Id;
2.按照进程id获取进程主句柄
public static class ProcessHelper { private static class Win32 { internal const uint GwOwner = 4; internal delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam); [DllImport("User32.dll", CharSet = CharSet.Auto)] internal static extern bool EnumWindows(EnumWindowsProc lpEnumFunc, IntPtr lParam); [DllImport("User32.dll", CharSet = CharSet.Auto)] internal static extern int GetWindowThreadProcessId(IntPtr hWnd, out IntPtr lpdwProcessId); [DllImport("User32.dll", CharSet = CharSet.Auto)] internal static extern IntPtr GetWindow(IntPtr hWnd, uint uCmd); [DllImport("User32.dll", CharSet = CharSet.Auto)] internal static extern bool IsWindowVisible(IntPtr hWnd); } public static IntPtr GetProcessHandle(int processId) { IntPtr processPtr = IntPtr.Zero; Win32.EnumWindows((hWnd, lParam) => { IntPtr pid; Win32.GetWindowThreadProcessId(hWnd, out pid); if (pid == lParam && Win32.IsWindowVisible(hWnd) && Win32.GetWindow(hWnd, Win32.GwOwner) == IntPtr.Zero) { processPtr = hWnd; return false; } return true; }, new IntPtr(processId)); return processPtr; } }
3.设置wpf的window的父窗体为当前进程主窗口句柄，，完整代码如下：
int id = Process.GetCurrentProcess().Id; IntPtr mainPtr = ProcessHelper.GetProcessHandle(id); var win = new Window(); new WindowInteropHelper(win) { Owner = mainPtr }; win.Show();