InstallShield 之String Table /property /path变量

 //原文链接：http://www.cnblogs.com/solo/archive/2008/05/09/921202.html

仔细了解了下，InstallShield这几种定义的变量的用法：
1.String Tables里的变量：
Installation Information->General Information->String Tables 在设置的语言中:如Chinese(Simplified) 添加变量TestStr 并设置值。在Script中使用方法：
eg.

STRING tempStr;
BEGIN
     tempStr=@TestStr;
MessageBox(tempStr,INFORMATION);
END ;

2.Property：
Behavior and Logic->Property Manager 添加变量如SoloProperty.在Script中使用语法：
eg.

function OnBegin()     
STRING tempStr,tempStr2;  
    STRING svUsername[ 256 ];
     NUMBER nBuffer;
begin
     nBuffer = 256 ;
     MsiGetProperty(ISMSI_HANDLE, " SoloProperty " , svUsername, nBuffer);
     MessageBox( " SoloProperty Value is = " + svUsername, INFORMATION);
     Exit ;
end ;

A useful function like this,:-):
Code:

prototype STRING GetValue( STRING );
prototype VOID SetValue( STRING , STRING );

function STRING GetValue(szName)
     STRING szResult;
     NUMBER nLength;
     NUMBER nRetVal;
begin
     nLength = 1024 ;
     nRetVal = MsiGetProperty(ISMSI_HANDLE, szName, szResult, nLength);
     if (nRetVal ! = ERROR_SUCCESS) then
         MessageBox( " Error retrieving value for: " + szName, WARNING);
     endif;
     return szResult;
end ;             

function VOID SetValue(szName, szValue)
     NUMBER nRetVal;
begin
     nRetVal = MsiSetProperty(ISMSI_HANDLE, szName, szValue);
     if (nRetVal ! = ERROR_SUCCESS) then
         MessageBox( " Error setting value for: " + szName, WARNING);
     endif;
end ;

useage Code:

svMyValue = GetValue( " SOME_PROPERTY " );
SetValue( " SOME_OTHER_PROPERTY " , svMyValue);

3. Path variables:
Media->Path Variables
找到这句话：

Path variables used to represent source paths are not available at run time , only at build time .