根据顶级窗口获取任意子窗口的函数

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http://fishmaster.blogbus.com/logs/22928295.html

 

HWND target_hwnd = NULL;

TCHAR *target_classname = L"child_class_name";

BOOL CALLBACK EnumChildProc(HWND hwndChild, LPARAM lParam)

{

    TCHAR class_name[256] = {0};

    ::GetClassName(hwndChild, target_classname, sizeof(class_name));

    DWORD ctrl_id = ::GetWindowLong(hwndChild, GWL_ID);

    if (!::StrCmp(class_name, target_classname))

    {

        target_hwnd = hwndChild;

        return (FALSE);

    }

    else

    {

        EnumChildWindows(hwndChild, EnumChildProc, 0);

    }

 

    return (TRUE):

}
此函数由 winapi EnumChildWindows() 调用