如何用C# WinFrom程式將其他程式啟用並讓其他程式作為他的子窗體。比如他開個主窗體可以把QQ，遊戲什麼的作為他的子窗體顯示出來？這個問題我在網上看到很多人都提過。但真正解決問題的很難找到。後來終於在網上找到了一個相關方面的知識。我早把這個資源上傳到我的下載檔案中去了。但是我感覺這樣的話，別人搜尋到的機率還是很小。所以我現在再不厭其煩的，把程式碼再貼出來吧，方便大家共同學習。

這個控制元件封裝好了。
using System; using System.Collections; using System.ComponentModel; using System.Diagnostics; using System.Drawing; using System.Data; using System.Windows.Forms; using System.Runtime.InteropServices; namespace AppControl { /// <summary> /// Application Display Control /// </summary> [ ToolboxBitmap(typeof(ApplicationControl), "AppControl.bmp"), ] public class ApplicationControl : System.Windows.Forms.Panel { /// <summary> /// Track if the application has been created /// </summary> bool created = false; /// <summary> /// Handle to the application Window /// </summary> IntPtr appWin; /// <summary> /// The name of the exe to launch /// </summary> private string exeName = ""; /// <summary> /// Get/Set if we draw the tick marks /// </summary> [ Category("Data"), Description("Name of the executable to launch"), DesignerSerializationVisibility(DesignerSerializationVisibility.Visible) ] public string ExeName { get { return exeName; } set { exeName = value; } } /// <summary> /// Constructor /// </summary> public ApplicationControl() { } [DllImport("user32.dll", EntryPoint = "GetWindowThreadProcessId", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)] private static extern long GetWindowThreadProcessId(long hWnd, long lpdwProcessId); [DllImport("user32.dll", SetLastError = true)] private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); [DllImport("user32.dll", SetLastError = true)] private static extern long SetParent(IntPtr hWndChild, IntPtr hWndNewParent); [DllImport("user32.dll", EntryPoint = "GetWindowLongA", SetLastError = true)] private static extern long GetWindowLong(IntPtr hwnd, int nIndex); [DllImport("user32.dll", EntryPoint = "SetWindowLongA", SetLastError = true)] private static extern long SetWindowLong(IntPtr hwnd, int nIndex, long dwNewLong); [DllImport("user32.dll", SetLastError = true)] private static extern long SetWindowPos(IntPtr hwnd, long hWndInsertAfter, long x, long y, long cx, long cy, long wFlags); [DllImport("user32.dll", SetLastError = true)] private static extern bool MoveWindow(IntPtr hwnd, int x, int y, int cx, int cy, bool repaint); [DllImport("user32.dll", EntryPoint = "PostMessageA", SetLastError = true)] private static extern bool PostMessage(IntPtr hwnd, uint Msg, long wParam, long lParam); private const int SWP_NOOWNERZORDER = 0x200; private const int SWP_NOREDRAW = 0x8; private const int SWP_NOZORDER = 0x4; private const int SWP_SHOWWINDOW = 0x0040; private const int WS_EX_MDICHILD = 0x40; private const int SWP_FRAMECHANGED = 0x20; private const int SWP_NOACTIVATE = 0x10; private const int SWP_ASYNCWINDOWPOS = 0x4000; private const int SWP_NOMOVE = 0x2; private const int SWP_NOSIZE = 0x1; private const int GWL_STYLE = (-16); private const int WS_VISIBLE = 0x10000000; private const int WM_CLOSE = 0x10; private const int WS_CHILD = 0x40000000; /// <summary> /// Force redraw of control when size changes /// </summary> /// <param name="e">Not used</param> protected override void OnSizeChanged(EventArgs e) { this.Invalidate(); base.OnSizeChanged(e); } /// <summary> /// Creeate control when visibility changes /// </summary> /// <param name="e">Not used</param> protected override void OnVisibleChanged(EventArgs e) { // If control needs to be initialized/created if (created == false) { // Mark that control is created created = true; // Initialize handle value to invalid appWin = IntPtr.Zero; // Start the remote application Process p = null; try { // Start the process p = System.Diagnostics.Process.Start(this.exeName); // Wait for process to be created and enter idle condition p.WaitForInputIdle(); // Get the main handle appWin = p.MainWindowHandle; } catch (Exception ex) { MessageBox.Show(this, ex.Message, "Error"); } // Put it into this form SetParent(appWin, this.Handle); // Remove border and whatnot SetWindowLong(appWin, GWL_STYLE, WS_VISIBLE); // Move the window to overlay it on this window MoveWindow(appWin, 0, 0, this.Width, this.Height, true); } base.OnVisibleChanged(e); } /// <summary> /// /// </summary> /// <param name="e"></param> protected override void OnHandleDestroyed(EventArgs e) { // Stop the application if (appWin != IntPtr.Zero) { // Post a colse message PostMessage(appWin, WM_CLOSE, 0, 0); // Delay for it to get the message System.Threading.Thread.Sleep(1000); // Clear internal handle appWin = IntPtr.Zero; } base.OnHandleDestroyed(e); } /// <summary> /// Update display of the executable /// </summary> /// <param name="e">Not used</param> protected override void OnResize(EventArgs e) { if (this.appWin != IntPtr.Zero) { MoveWindow(appWin, 0, 0, this.Width, this.Height, true); } base.OnResize(e); } } }

執行效果見圖片