子窗口对话框如何接收tab按钮消息

Question

首先创建了个父窗口对话框，然后又创建了个无标题栏的子窗口贴在父窗口上，这样的效果看起来就像一个窗口，但是，tab按键却无法在父子窗口中切换，比如我把焦点放在子窗口的任何一个控件上，按tab，则焦点会跳转到父窗口的控件上，再也不会回到子窗口。如何能做到tab消息在窗口间能自由的切换？ thx

Answer 1

我觉得应该在PreTranslateMessage里判断吧

Answer 2

这个程序是windows sdk做的，没有PreTranslateMessage的函数。

Answer 3

void CTestHartDlg::OnSelchangeTabMain(NMHDR* pNMHDR, LRESULT* pResult) 
{
CTestHartDlg *pthis=this;
int iSel;
m_InfoDlg.ifSave();
m_InchingDlg.ifSave();
m_AdvanceDlg.ifSave();
m_AdvanceDlg.ifJLSave();
m_ManufAdjustDlg.ifSave();
CRect ret=pthis->m_retTab;

//如果是监测变量界面先停止线程
if(&(pthis->m_InspectDlg)==pthis->m_pCurrentDlg)
{

if(!pthis->m_InspectDlg.ThreadStop())
{
return ;
}
}
//如果正在进行增益测试，则退出增益测试。
if(pthis->m_IncreaseTest.m_Exit.IsWindowEnabled()==TRUE)
{
pthis->m_IncreaseTest.OnButton2();
}
iSel=pthis->m_tabMain.GetCurSel();
pthis->m_pCurrentDlg->ShowWindow(SW_HIDE);
int n=-2;
switch(iSel)
{
case 0:
UpdateData(FALSE);
DoEvent();
pthis->m_InfoDlg.ReadInfo();
pthis->m_pCurrentDlg=&(pthis->m_InfoDlg);
break;
case 1:
pthis->m_ConfigurationDlg.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
UpdateData(FALSE);
DoEvent();
pthis->m_ConfigurationDlg.ReadInfo();
pthis->m_pCurrentDlg=&(pthis->m_ConfigurationDlg);
break;
case 2:
pthis->m_InchingDlg.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
pthis->m_pCurrentDlg=&(pthis->m_InchingDlg); break;
case 3:
pthis->m_InspectDlg.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
UpdateData(FALSE);
DoEvent();
pthis->m_InspectDlg.ReadInfo();
pthis->m_pCurrentDlg=&(pthis->m_InspectDlg);
pthis->m_InspectDlg.ThreadRun();
break;
case 4:
pthis->m_IncreaseTest.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
pthis->m_pCurrentDlg=&(pthis->m_IncreaseTest);
break;

case 5:
pthis->m_UserAdjustDlg.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
UpdateData(FALSE);
DoEvent();
pthis->m_pCurrentDlg=&(pthis->m_UserAdjustDlg);
pthis->m_UserAdjustDlg.InitData();
break;

case 6:
pthis->m_ManufAdjustDlg.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
UpdateData(FALSE);
DoEvent();
pthis->m_ManufAdjustDlg.ReadInfo();
pthis->m_pCurrentDlg=&(pthis->m_ManufAdjustDlg);
pthis->m_ManufAdjustDlg.bValChange=FALSE;
break;
case 7:
pthis->m_AdvanceDlg.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
UpdateData(FALSE);
DoEvent();
pthis->m_AdvanceDlg.ReadInfo();
pthis->m_pCurrentDlg=&(pthis->m_AdvanceDlg);
m_AdvanceDlg.bValChange=FALSE;
break;
case 8:
pthis->m_AdditionFun.SetWindowPos(&(pthis->wndTop),ret.left,ret.top-n,ret.right-ret.left-5,ret.bottom-ret.top-25,SWP_SHOWWINDOW);
UpdateData(FALSE);
DoEvent();
pthis->m_pCurrentDlg=&(pthis->m_AdditionFun);
break;
}
return ;}

Answer 4

SDK的话就更简单咯，直接拦截WM_CHAR消息不就行了，TAB的虚拟键码应该是9吧

Answer 5

奇怪，我用CreateDialogParam创建的对话框，他的消息回调函数怎么收不到任何有关键盘消息。我直接在消息回调中判断的if (WM_KEYFIRST <= uMsg && uMsg <= WM_KEYLAST)
这个都进不去

Answer 6

非模态对话框要在消息循环里这样判断：
if (hDlgModeless /*全局保存非模态句柄*/== 0 || !IsDialogMessage (hDlgModeless, &msg))