Source of Ｃ＃コード断片/共通/WM_COPYDATAを受ける

* WM_COPYDATAを受ける [#h351d519]

#code(Csharp,nooutline){{
[StructLayout(LayoutKind.Sequential)]
private struct COPYDATASTRUCT {
	public IntPtr dwData;
	public int cbData;
	public IntPtr lpData;
}
private const int WM_COPYDATA = 0x4A;

protected override void WndProc(ref Message m) {
	if(m.Msg==WM_COPYDATA){
		COPYDATASTRUCT cds = new COPYDATASTRUCT();
 		cds = (COPYDATASTRUCT) Marshal.PtrToStructure(m.LParam, typeof(COPYDATASTRUCT));
		if (cds.cbData > 0) {
			byte[] data = new byte[cds.cbData];			
 			Marshal.Copy(cds.lpData, data, 0, cds.cbData);
 			//あとは data に COPYDATA の内容が入ってるので適宜処理
		}
		m.Result=(IntPtr)1;
	}
	base.WndProc (ref m);
}
}}