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win32-dialog 判断HWND是否有效

admin 11月 13, 2020 0

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HWND hWndBtn;
hWndBtn = GetDlgItem(hwndDlg, IDC_BTN_CONFIGDATACHANNEL);
EnableWindow(hWndBtn, FALSE);

判断HWND是否有效


if (FALSE == IsWindow(*g_pParent->m_phwndConfigDlg))
{
    OutputDebugString("HA360AMS: config dialog handle invalide");
}
else
{
    ::PostMessage(*g_pParent->m_phwndConfigDlg, MSG_GET_ALL_DEVINFO_DONE, 0, 0);
}