Question

我有一个编辑控件

HWND hInput = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "", 
    WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_MULTILINE | ES_AUTOVSCROLL, 
    0, 0, 100, 100, hwnd, (HMENU)IDC_MAIN_INPUT, GetModuleHandle(NULL), NULL);

和一个按钮：

HWND hSendButton = CreateWindowEx(WS_EX_CLIENTEDGE,"BUTTON","Send!",
        BS_DEFPUSHBUTTON | WS_VISIBLE | WS_CHILD,
        0,0,0,0,hwnd,(HMENU)IDC_MAIN_SENDBUTTON,GetModuleHandle(NULL),NULL);

有没有办法在编辑控件中输入时按Enter键并发送按钮被按下的消息？

我想也许

SendMessage(hwnd,WM_COMMAND,(WPARAM)IDC_MAIN_SENDBUTTON,LPARAM(0));

将完成发送消息的工作，但我仍然坚持捕获Enter键。

提前谢谢你。

Answer 1

您需要子类化编辑控件并处理WM_KEYDOWN消息。如果它是您想要的密钥，请发送消息，否则，让默认的编辑控制程序完成其工作。

代码是这样的：

WNDPROC oldEditProc;

LRESULT CALLBACK subEditProc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
   switch (msg)
   {
    case WM_KEYDOWN:
         switch (wParam)
         {
          case VK_RETURN:
          //Do your stuff
              break;  //or return 0; if you don't want to pass it further to def proc
          //If not your key, skip to default:
         }
    default:
         return CallWindowProc(oldEditProc, wnd, msg, wParam, lParam);
   }
   return 0;
}

void somecreateeditproc()
{
  HWND hInput = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "", 
    WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_MULTILINE | ES_AUTOVSCROLL, 
    0, 0, 100, 100, hwnd, (HMENU)IDC_MAIN_INPUT, GetModuleHandle(NULL), NULL);

  oldEditProc = (WNDPROC)SetWindowLongPtr(hInput, GWLP_WNDPROC, (LONG_PTR)subEditProc);
}

Answer 2

我在对话框中这样做：

BOOL CDialogObject::PreTranslateMessage(MSG* pMsg)
{
    if (pMsg->message == WM_KEYDOWN && pMsg->wParam == VK_RETURN)
    {
        SendMessage(WM_COMMAND, (WPARAM)IDC_BUTTON3,LPARAM(0));
    }
    return CDialog::PreTranslateMessage(pMsg);
}

编辑控件捕获输入键

2 个答案: