Ｃ＃コード断片/共通/WM_COPYDATAを受ける のバックアップの現在との差分(No.1)

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#spanend
#spanadd
[StructLayout(LayoutKind.Sequential)]
#spanend
#spanadd
private struct COPYDATASTRUCT {
#spanend
#spanadd
    public IntPtr dwData;
#spanend
#spanadd
    public int cbData;
#spanend
#spanadd
    public IntPtr lpData;
#spanend
#spanadd
}
#spanend
#spanadd
private const int WM_COPYDATA = 0x4A;
#spanend
#spanadd
 
#spanend
#spanadd
protected override void WndProc(ref Message m) {
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#spanadd
    if(m.Msg==WM_COPYDATA){
#spanend
#spanadd
        COPYDATASTRUCT cds = new COPYDATASTRUCT();
#spanend
         cds = (COPYDATASTRUCT) Marshal.PtrToStructure(m.LParam, typeof(COPYDATASTRUCT));
         if (cds.cbData > 0) {
             byte[] data = new byte[cds.cbData];                
#spanadd
        if (cds.cbData > 0) {
#spanend
#spanadd
            byte[] data = new byte[cds.cbData];            
#spanend
             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);
 }
#spanadd
        }
#spanend
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        m.Result=(IntPtr)1;
#spanend
#spanadd
    }
#spanend
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    base.WndProc (ref m);
#spanend
#spanadd
}
#spanend
#spanadd