1. 如何使PB窗口总在最上层

通过SetWindowPos函数吧窗口的显示层次修改为HWND_TOPMOST，就可以使指定窗

口永远不会被其他窗口覆盖，该函数声明为：

Function Long SetWindowPos(Long hwnd, Long ord, Long x, Long y, Long

dx, Long dy, Long uflag) Library “user32.dll”

参数1为要顶层显示的窗口句柄，参数2指定显示的层次，参数7为附加选项，其余

参数指定窗口位置和大小，均可忽略。在窗口的Open或Activate事件中加入如下

函数调用：

SetWindowPos(Handle(This),-1,0,0,0,0,3)

参数2取-1表示在最顶层显示窗口，取1表示在最底层显示；最后一个参数若取1，

表示窗口大小保持不变，取2表示保持位置不变，因此，取3（=1+2）表示大小和

位置均保持不变，取0表示将窗口的大小和位置改变为指定值。-1. How to make the window always on top of PB

SetWindowPos function bar by the window display level was revised to HWND_TOPMOST, you can make the specified window

I will never be covered by other windows, this function is declared as follows:

Function Long SetWindowPos (Long hwnd, Long ord, Long x, Long y, Long

dx, Long dy, Long uflag) Library "user32.dll"

Parameters of an order to show top-level window handle, the parameter 2 shows the level of the specified parameter 7 as an additional option, the rest of

Parameter specifies the window position and size, can be ignored. Open the window or the Activate event by adding the following

Function call:

SetWindowPos (Handle (This),-1,0,0,0,0,3)

-1 Means that two parameters take the most top-level display window, check that at the bottom of a display　the last argument, if taken one,

Indicated that the window size remains unchanged, taking two positions that remain unchanged, therefore, take 3 (= 1+2) that the size and

Position r