windows编程获取子控件的对象

windows编程控件对象

解决方案 »

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例子:BOOL CALLBACK DialogProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
HWND hlb;
TRACKMOUSEEVENT  tme;
tme.cbSize=sizeof(TRACKMOUSEEVENT);
tme.dwFlags=TME_HOVER | TME_LEAVE;
tme.dwHoverTime=1000;
tme.hwndTrack=hwndDlg;
HWND hOkButton=NULL;
//
switch (uMsg)
{
case WM_INITDIALOG:
hlb=GetDlgItem (hwndDlg,1000);//listbox
            SendMessage(hlb,LB_ADDSTRING ,0,(LPARAM)"他好");
        SendMessage(hlb,LB_ADDSTRING ,0,(LPARAM)"她好");
        SendMessage(hlb,LB_SETCURSEL ,0,0);
OldLbProc = (WNDPROC) SetWindowLong(hlb,GWL_WNDPROC,(LONG)MyLbProc);
return TRUE;
// break;
case WM_DESTROY:
hlb=GetDlgItem (hwndDlg,1000);//listbox
SetWindowLong(hlb, GWL_WNDPROC,(LONG) OldLbProc);
break;
case WM_COMMAND://WM_COMMAND
switch (LOWORD(wParam))
{
case IDOK:
case IDCANCEL:
EndDialog(hwndDlg,0);
return TRUE;
}
break;
case WM_SYSCOMMAND:
EndDialog(hwndDlg,0);
return TRUE;
case WM_MOUSEMOVE:
_TrackMouseEvent(&tme);
return TRUE;
case WM_MOUSEHOVER:
hOkButton=GetDlgItem(hwndDlg,IDOK);
SetWindowText(hOkButton,_T("Hover"));
return TRUE;
case WM_MOUSELEAVE:
hOkButton=GetDlgItem(hwndDlg,IDOK);
SetWindowText(hOkButton,_T("Leave"));
return TRUE;
}
return FALSE;
}
不是说对象，而是控件的句柄。在窗口过程中的wm_command中判断控件id.
GetDlgCtrlID通过窗口句柄获取其ID值
GetDlgItem通过子窗口ID获取其句柄
GetWindowText通过窗口句柄获取控件的当前内容
你好能不能根据Slider Control 举个例子，非常谢谢！！
用FindWindow()，根据类名或窗口名字就可以得到那个窗口对象指针，然后就通过这指针得到控件对象