学步园

发送数据：

#include <iostream><br /> #include <windows.h><br /> using namespace std;</p> <p>void main(int argc,TCHAR*argv[])<br /> {<br /> //WM_COPYDATA 进程间通信<br /> HWND hWnd = FindWindow(NULL,"Recv");<br /> if(NULL != hWnd)<br /> {<br /> COPYDATASTRUCT cpd;<br /> cpd.dwData = 0;<br /> cpd.cbData = strlen("the string to send") + 1;<br /> cpd.lpData = (void*)"the string to send";</p> <p> SendMessage(hWnd,WM_COPYDATA,NULL,(LPARAM)&cpd);<br /> }<br /> //WM_COPYDATA 进程间通信<br /> }

接收数据：

BOOL CRecvDlg::OnCopyData(CWnd* pWnd, COPYDATASTRUCT* pCopyDataStruct)<br /> {<br /> MessageBox((LPCTSTR)pCopyDataStruct->lpData);</p> <p> return CDialog::OnCopyData(pWnd, pCopyDataStruct);<br /> }