用vb6.0编写的窗口激活程序，可以激活系统中运行的任意可见窗口（包括无标题窗口），激活前要先获得窗口的句柄（有多个API可以获得窗口句柄）-Written using vb6.0 window to activate the program, you can activate any visible windows running on the system (including the Untitled window), before the activation must first ob