有关编程实现点击另一个程序的按钮的问题

[fenex]

已经得到目标窗口和按钮的handle及按钮的ID，并且肯定正确。但是用
::PostMessage(hwnd, BN_CLICKED, (WPARAM)BNUTTON_ID, (LPARAM)hButton);无效。用
::PostThreadMessage(dwThreadID, BN_CLICKED, (WPARAM)BNUTTON_ID, (LPARAM)hButton);也不行。到底哪里不对？

注：目标窗口是OVERLAPPED window，按钮具有CHILD_WINDOW，OWNERDRAW属性。

[webber84]

BN_CLICKED不是一个真正的windows消息，你可以这样试试：
::PostMessage(hwnd,WM_LBUTTONDOWN,0,0);
::PostMessage(hwnd,WM_LBUTTONUP,0,0);

[sans]

::PostMessage( GetParent(hwnd), WM_COMMAND, MAKELONG( BNUTTON_ID,BN_CLICKED), (LPARAM)hButton);

[Lemon_2000]

hwnd:目标窗口句柄
HWND hButton=::GetDlgItem(hwnd,BNUTTON_ID);

::PostMessage( hwnd, WM_COMMAND, MAKELONG( BNUTTON_ID,BN_CLICKED), (LPARAM)hButton);