Detect QuickTime

[Adam]

This will not cover how to run the QuickTime installer because I could see people wanting to run this at different point during the install.

Here is a function that will detect the version of QuickTime. Place this in the Global Functions section of the software:

function ir_GetQuicktimeVersion()
	local bOK = true;

	--We're checking for Quicktime at this point . . .
	bOK = Registry.DoesKeyExist(HKEY_CLASSES_ROOT,"CLSID\\{02BF25D5-8C17-4B23-BC80-D3488ABDDC6B}\\InprocServer32");

	if (bOK) then
		strFileName = Registry.GetValue(HKEY_CLASSES_ROOT,"CLSID\\{02BF25D5-8C17-4B23-BC80-D3488ABDDC6B}\\InprocServer32","NoName",true);
		if (Application.GetLastError() ~= 0) then	
			bOK = false;
		end
	end


	--If a version was found, we now get the version information
	if (bOK) then
		verInfo = File.GetVersionInfo(strFileName);
		if(Application.GetLastError() ~= 0)then
			strVersion = "0.0.0.0";
		else
			-- OK, we have the file version
			strVersion = verInfo.FileVersion;
		end
	end
	
	--If there was no version found, bOK = false, and verison is set to "0.0.0.0"
	if (bOK ~= true) then
		strVersion = "0.0.0.0";
	end
	
	return strVersion;
end

Now to actually use this code you will have to call the function. In most cases you will want to do a version comparison on this. Here is some code to get you started:

strQTver = ir_GetQuicktimeVersion();
strTargetver = 5.0.0.0
     if String.CompareFileVersions(strQTver,strTargetver) == -1 then
          -- The installed version is less than 5.0.0.0
          -- Here is where you would run the installer for QT.
     end