Question

为什么按下鼠标，拖动鼠标，然后松开鼠标时，对 WM_LBUTTONDOWN，程序有响应，但是对 WM_LBUTTON不响应？

代码如下：
case WM_LBUTTONDOWN:

var_Get( p_event->p_vout, "mouse-button-down", &val );
val.i_int |= 1;
var_Set( p_event->p_vout, "mouse-button-down", val );
PostMessage(p_event->p_vout->p_sys->hparent, WM_LBUTTONDOWN, msg.wParam, MAKELPARAM(pt.x, pt.y));
if(hwnd != 0)
PostMessage(hwnd, WM_LBUTTONDOWN, msg.wParam, MAKELPARAM(pt.x, pt.y));

DirectXPopupMenu( p_event, false );
break;

case WM_LBUTTONUP:
var_Get( p_event->p_vout, "mouse-button-down", &val );
val.i_int &= ~1;
var_Set( p_event->p_vout, "mouse-button-down", val );
var_SetBool( p_event->p_vout, "mouse-clicked", true );
PostMessage(p_event->p_vout->p_sys->hparent, WM_LBUTTONUP, msg.wParam, MAKELPARAM(pt.x, pt.y));
if(hwnd != 0)
PostMessage(hwnd, WM_LBUTTONUP, msg.wParam, MAKELPARAM(pt.x, pt.y));

break;

Answer 1

这个你应该到CSDN上问,那里人多.这类问题很好解决,