26-进程间通信：剪切板

void CClipBoardDlg::OnBnClickedSendButton()
{
	//1.打开剪切板
	if (OpenClipboard())
	{
		//2.清空剪切板
		EmptyClipboard();
		char* szSendBuf;

		//3.获取编辑框的内容	
		CStringA strSend;
		GetDlgItemText(IDC_EDIT_SEND, strSend);
		//4.分配内存对象
		HANDLE hClip = GlobalAlloc(GMEM_MOVEABLE, strSend.GetLength() + 1);

		//5.将剪切板加锁，拷贝内容，解锁
		szSendBuf = (char*)GlobalLock(hClip);
		strcpy(szSendBuf, strSend);
		GlobalUnlock(hClip);

		//6.将数据放入剪切板
		SetClipboardData(CF_TEXT, hClip);

		//7.关闭剪切板
		CloseClipboard();
	}
}


void CClipBoardDlg::OnBnClickedRecvButton()
{
	//1.打开剪切板
	if (OpenClipboard())
	{
		//2.判断剪切板是否可用
		if (IsClipboardFormatAvailable(CF_TEXT))
		{
			char* szRecvBuf;
			//3.从剪切板获取数据
			HANDLE hClip = GetClipboardData(CF_TEXT);
			szRecvBuf = (char*)GlobalLock(hClip);
			SetDlgItemTextA(IDC_EDIT_RECV, szRecvBuf);
			GlobalUnlock(hClip);

		}
		//4.关闭剪切板
		CloseClipboard();
		
	}
}