With the following C#-Code i can change the MediaMessage in Windows Live Messenger. At least not under Windows 7.
Perhaps you can help me to run this code under Windows 7 successfully.
Thanks
DeZio
code:
[DllImport("user32", EntryPoint = "SendMessageA")]
private static extern int SendMessage(int Hwnd, int wMsg, int wParam, int lParam);
[DllImport("user32", EntryPoint = "FindWindowExA")]
private static extern int FindWindowEx(int hWnd1, int hWnd2, string lpsz1, string lpsz2);
[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, IntPtr windowTitle);
private const short WM_COPYDATA = 74;
public struct COPYDATASTRUCT
{
public int dwData;
public int cbData;
public int lpData;
}
public COPYDATASTRUCT data;
string actURL = "http://*****";
public int VarPtr(object e)
{
GCHandle GC = GCHandle.Alloc(e, GCHandleType.Pinned);
int gc = GC.AddrOfPinnedObject().ToInt32();
GC.Free();
return gc;
}
public void SendMSNMessage(bool enable, string category, string message)
{
string buffer = "\\0Music\\01\\0{0}\\0" + message + " (" + actURL + ")\\0" + message + "\\0" + message + "\\0\\0\0";
int handle = 0;
data.dwData = 0x0547;
data.lpData = VarPtr(buffer);
data.cbData = (buffer.Length * 2);
handle = FindWindowEx(0, handle, "MsnMsgrUIManager", null);
if (handle > 0)
{
//Text = handle.ToString();
SendMessage(handle, WM_COPYDATA, 0, VarPtr(data));
}
}
...
SendMSNMessage(true, "Music", "My Song - My Artist");
...
