@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Places (posts) a message in the message queue associated with the thread that created the specified window and returns without waiting for the thread to process the message. !!!!C# Signature: [DllImport("User32.Dll", EntryPoint = "PostMessageA")] public static extern bool PostMessage(IntPtr hWnd, uint msg, int wParam, int lParam); !!!!VB Signature: Declare Function PostMessageA Lib "user32.dll" (TODO) As TODO !!!!User-Defined Types: None. !!!!Alternative Managed API: Do you know one? Please contribute to it! !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: public const uint WM_KEYDOWN = 0x100; // get the handle of window var hWnd = IntPtr.Zero; //use FindWindowEx etc... // send few messages to the window PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('h'), 0); PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('e'), 0); PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('l'), 0); PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('l'), 0); PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('o'), 0); !!!!Overloading: [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool PostMessageW(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam); [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool PostMessageW(IntPtr hWnd, uint Msg, UIntPtr wParam, UIntPtr lParam); [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool PostMessageW(IntPtr hWnd, int Msg, int wParam, IntPtr lParam); [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool PostMessageW(IntPtr hWnd, uint Msg, uint wParam, ref IntPtr lParam); [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool PostMessageW(IntPtr hWnd, uint Msg, uint wParam, [MarshalAs(UnmanagedType.LPWStr)] string lParam); [return: MarshalAs(UnmanagedType.Bool)] [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool PostMessageW(IntPtr hWnd, uint Msg, IntPtr wParam, StringBuilder lParam); Documentation: PostMessageA@msdn on MSDN
Edit user32.PostMessageA
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