函数原型
WORD
GetWindowWord(HWND hWnd, int nIndex) ;
可被下面函数替代
LONG
GetWindowLong(
HWND hWnd,
int nIndex
);api函数名(function)：GetWindowWord
GetWindowWord 库名(library)：User32
GetWindowWord 操作系统(os)：Requires Windows NT 3.1 or later; Requires Windows 95 or later
GetWindowWord 参数表(parameter)：
hwnd ----------- Long，想获取信息的那个窗口的句柄
nIndex --------- Long，正偏移值，指出在窗口额外字节分配的空间中取得的信息
hWnd Identifies the window and, indirectly, the class to which the window belongs.
nIndex Specifies the zero-based byte offset of the value to be retrieved. Valid values are in the range zero through the number of bytes of extra window memory, minus two; for example, if you specified 10 or more bytes of extra window memory, a value of 8 would be an index to the fifth 16-bit integer.
GetWindowWord 返回值(return)：
Long，由nIndex决定 If the function succeeds, the return value is the requested 16-bit value. If the function fails, the return value is zero. To get extended error information, call GetLastError.GetWindowWord 说明(description)：
获得指定窗口结构的信息 The GetWindowWord function retrieves a 16-bit (word) value at the specified offset into the extra window memory for the specified window.GetWindowWord 声明(declare)：
Declare Function GetWindowWord Lib "user32" Alias "GetWindowWord" (ByVal hwnd As Long, ByVal nIndex As Long) As Integer
