//声明: GetWindow( hWnd: HWND; {指定的窗口句柄} uCmd: UINT {指定的关系选项} ): HWND; {失败返回0; 成功返回符合的窗口句柄} //uCmd 可选值: GW_HWNDFIRST = 0; {同级别第一个} GW_HWNDLAST = 1; {同级别最后一个} GW_HWNDNEXT = 2; {同级别下一个} GW_HWNDPREV = 3; {同级别上一个} GW_OWNER = 4; {属主窗口} GW_CHILD = 5; {子窗口}
GW_ENABLEDPOPUP = 6; {enabled popup window有效的弹出窗口}