To access SUPPORTDIR through a deferred InstallScript custom action
In the Custom Actions and Sequences view, create a set-a-property custom action (type 51) called GetSUPPORTDIR . Configure the Property Name, Property Value, and Install Exec Sequence settings for the custom action as follows, and leave all of the other settings blank. Property Name: DisplaySupportDir Property Value: [SUPPORTDIR] Install Exec Sequence: After InstallInitialize In the InstallScript view, create a new function called DisplaySupportDir. Add the following code to display a message box containing the value of SUPPORTDIR: function DisplaySupportDir(hMSI)
STRING supportDirPath;
NUMBER supportDirPathBuffer;
begin
supportDirPathBuffer = MAX_PATH;
if(MsiGetProperty(hMSI, "CustomActionData", supportDirPath, supportDirPathBuffer) == ERROR_SUCCESS) then
SprintfBox(INFORMATION,"Deferred Execution","The value of SUPPORTDIR is %s",supportDirPath);
SprintfBox(INFORMATION,"Deferred Execution","The value of InstallScript's SUPPORTDIR is %s",SUPPORTDIR);
endif;
end;
In the Custom Actions and Sequences view, create an InstallScript custom action called DisplaySupportDir. Configure the Function Name, In-Script Execution, and Install Exec Sequence settings for the custom action as follows, and leave all of the other settings blank. Function Name: DisplaySupportDir In-Script Execution: Deferred Execution in System Context Install Exec Sequence: After GetSUPPORTDIR
When I execute the installer the first SprintfBox (supportDirPath variable) gives blank and second SprintfBox gives correct supportdir value. Is that the required behaviour. When I am printing SUPPORTDIR directly , it is giving me the correct path.
