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Thu, 16 May 2019 13:55

Xemuth
Messages: 387
Registered: August 2018
Location: France

Senior Member

Hello Community !

Today I asked myself a question:

Here is part on code on my "OldVersion.exe"

    const int VERSION = 1; 
    std::string s = std::to_string(VERSION);
    bool needAnUpdate=false;
    s << " " << &needAnUpdate;
    char* cmd =(char*) s.c_str();
    BOOL result = CreateProcess( "C:\\Upp\\upp\\out\\MyApps\\MINGW.Debug.Debug_Full.Noblitz\\newVersion.exe", //New Version const int is 2 
                   cmd, NULL, NULL, // here we past version of current .exe
                   NULL, NULL, NULL, NULL,
                   &lpStartupInfo,
                   &lpProcessInfo
                   );
	if (result)
	{
		if(needAnUpdate){
			//Then my soft need to update itself.	
		}
	}

As you can see, this old version have const int VERSION = 1.

here is NewVersion.exe :

	const int VERSION =2;
	if(argc > 1){
		Upp::String arg(argv[1]); //transform args to string
		Upp::String version = arg.Left(arg.Find(" ") -1); //here I get version
		pp::String addrBool = arg.Right(arg.GetCount() - arg.Find(" ")); //Here I got adresse of my Boolean at string format
		
		int versionToTest = std::stoi(version.ToStd());
		if (VERSION > versionToTest){
			// Here I cast my addrBool (string) to bool*  (I dont know how to do it :/ )	
		}
		//Here I end the programme 
	}

with this "methode" I should be able to know if oldVersion is outdated.

But it's possible ? It's a good idea to do those "stranges" things ? Maybe I should just use a textFile holding current version of newVersion.exe ?

Thanks for taking time to read and respond my Strange question.

Best Regard,

Xemuth

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