pascalscript

I need to return a string value to the calling inno setup script. Problem is I can't find a way to manage the allocated memory. If I allocate on the DLL side, I don't have anything to deallocate with on the script side. I can't use an output parameter, because there is no allocation function in the Pascal Script either. What should I do? Here is a sample code of how to allocate a string that returns from a DLL: [code] Function GetClassNameA(hWnd: Integer; lpClassName: PChar; nMaxCount: Integer): Integer; External 'GetClassNameA@User32.dll StdCall'; function GetClassName(hWnd: Integer): string;

I wonder how to determine whether a specific Windows Update package is installed in the target machine, lets say for example the Windows Update package with name KB2919355 . Exists a built-in feature to check that? If not, what would be the required code to determine it? Maybe messing with registry, or maybe a cleanest and/or secure way? Pseudo-Code: [Setup] ... [Files] Source: {app}\*; DestDir: {app}; Check: IsPackageInstalled('KB2919355') [Code] function IsPackageInstalled(packageName): Boolean; begin ... Result := ...; end; function IsKBInstalled(KB: string): Boolean; var WbemLocator:

I'm reading the value of an INF file, now I need to compare it with the installer version, but when I compile I get an error: Unknown identifier: CompareVersion What is wrong? [Code] function GetKeyValue(const AKeyName, AFileName, ADefault: string): string; var I: Integer; KeyPos: Integer; KeyFull: string; FileLines: TArrayOfString; begin Result := ADefault; if LoadStringsFromFile(AFileName, FileLines) then begin KeyFull := AKeyName + '='; for I := 0 to GetArrayLength(FileLines) - 1 do begin FileLines[I] := TrimLeft(FileLines[I]); KeyPos := Pos(KeyFull, FileLines[I]); if KeyPos > 0 then begin

I have a batch file (setting changer) that uses xcopy to list specific files formats in a specific folder, then allows me to type in one of the names and the script uses that name to copy that file to another location. First xcopy creates a copy of the original as a backup ( rolling backup only 1 copy ) then does the file copy (extension is fixed in batch only body of filename needed This works great BUT I would love to try and do this in Inno Setup for a nice clean GUI. I would like to populate the list of components/types from this list of files found in a specific fixed folder. Or even

I need to get the volume serial number for a drive letter during an installation created with Inno Setup. I know that DLL functions can be imported into Inno, but I'm fairly new to it and having some problems getting it to work. I know that the GetVolumeInformation function in kernel32 can do what I need. Could someone show me how to import and use that functionality in an Inno script to retrieve the volume serial number? Thanks! Inno-Setup code:: [Code] function GetVolumeInformation( lpRootPathName: PChar; lpVolumeNameBuffer: PChar; nVolumeNameSize: DWORD; var lpVolumeSerialNumber: DWORD; var