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有时候我们需要不同的登录权限，在画面上显示不同按钮，比如图中有3,4,，5，6四个按钮，以便不同的人可以操作不同的按钮。但是如何实现这一功能呢？我简单分享一下我的经验

1、首先在用户管理界面建立四个不同的用户，比如1111,2222,3333,4444

登录用户1111，显示3,4,5,6按钮

登录用户2222，显示3,4,5按钮

登录用户3333，显示3,4按钮

登录用户4444，显示3按钮

2、在画面中建一个按钮，两个输入输出域，用来登录用户，选择用户自定义登录指令。在按钮的“单击鼠标”C语言输入如下指令便可实现

#pragma code("useadmin.dll")
#include "PWRT_API.H"
#pragma code()
if (PWRTSilentLogin(GetTagChar("user"),GetTagChar("password"))==0)
{
MessageBox (NULL, "错误,请重新输入!" , "提示", MB_ICONEXCLAMATION MB_SYSTEMMODAL );}
else
{
if(!strcmp(GetTagChar("@CurrentUser"),"1111"))
{
SetVisible("NewPdl1.PDL","按钮3",1); //Return-Type: BOOL 
SetVisible("NewPdl1.PDL","按钮4",1);
SetVisible("NewPdl1.PDL","按钮5",1);
SetVisible("NewPdl1.PDL","按钮6",1);
}

else if(!strcmp(GetTagChar("@CurrentUser"),"2222"))
{
SetVisible("NewPdl1.PDL","按钮3",1); //Return-Type: BOOL 
SetVisible("NewPdl1.PDL","按钮4",1);
SetVisible("NewPdl1.PDL","按钮5",1);
SetVisible("NewPdl1.PDL","按钮6",0);
}

else if(!strcmp(GetTagChar("@CurrentUser"),"3333"))
{
SetVisible("NewPdl1.PDL","按钮3",1); //Return-Type: BOOL 
SetVisible("NewPdl1.PDL","按钮4",1);
SetVisible("NewPdl1.PDL","按钮5",0);
SetVisible("NewPdl1.PDL","按钮6",0);
}

else if(!strcmp(GetTagChar("@CurrentUser"),"4444"))
{
SetVisible("NewPdl1.PDL","按钮3",1); //Return-Type: BOOL 
SetVisible("NewPdl1.PDL","按钮4",0);
SetVisible("NewPdl1.PDL","按钮5",0);
SetVisible("NewPdl1.PDL","按钮6",0);
}
SetTagChar("user",""); //Return-Type: BOOL 
SetTagChar("password",""); //Return-Type: BOOL

}

其中：是否显示中组态C动作：

return CheckPermission(lpszPictureName,lpszObjectName); 

变量触发：@CurrentUser