将文件copy到剪贴板上

　　bool CopyToClipboard(AnsiString file);
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    CopyToClipboard("C:\\scandisk.log");
}
//---------------------------------------------------------------------------
//收集整理：http://www.ccrun.com (C++ Builder 研究)
//---------------------------------------------------------------------------
bool CopyToClipboard(AnsiString file)
{
    int nLen;
    char* Data;
    HANDLE hMem;

    if (file.IsEmpty()) return false;

    nLen = 20 + file.Length() + 2;
    hMem = GlobalAlloc(GMEM_MOVEABLE
        GMEM_DDESHAREGMEM_ZEROIN99v,
        nLen);
    if (hMem==NULL) return false;
    Data = (char*)GlobalLock(hMem);
    *(DWord*)Data = 20;
    strcpy(Data+20, file.c_str());
    GlobalUnlock(hMem);
    if (OpenClipboard(NULL)) {
        EmptyClipboard();
        if (SetClipboardData(
            CF_HDROP,hMem)!=0)
            hMem = NULL;
        CloseClipboard();
    }
    if (hMem) GlobalFree(hMem);

    return hMem ? false : true;
}