Winapp with the wmplayer in it which is using it's own DLL

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I have a winapp with the wmPlayer in it which is using it's own dll's to actually function.
But, when i move my app in another folder that dont contains the 2 dll asociated with the player in it, my application freeze for 1min and auto closes by default.
I want a way to pop out a MessageBox with my custom error, to remind myself (user) about this little step; to add the dll's with the application inside same folder.

edited#1
My Compiled exe is having this issue. Not the VS project.
When i put it With the 2 dll's in the same folder, then all is fine, indiferent of the folder location on my hdd. The problem arise when i forget to move the dll's into application's folder.
My code is working fine. The problem is that the 'player' object is requesting those dll's when the form is initializing. I dont think it is even passing after InitializeComponent();

Check what ive tried:
I've tried with 2 threads.
I've tried with {try catch}.
No (good) results.

Thank you.

public Form1()
{
    InitializeComponent();
    di = new DirectoryInfo(path);

    Thread thread1 = new Thread(new ThreadStart(A));
    Thread thread2 = new Thread(new ThreadStart(B));
    thread1.Start();
    thread2.Start();
    thread1.Join();
    thread2.Join();
}

void A()
{
    bool Interop = false;
    bool AxInterop = false;
    foreach (var file in di.GetFiles())
    {
        //Interop.WMPLib.dll
        //AxInterop.WMPLib.dll
        if (file.Name == "Interop.WMPLib.dll")
        {
            Interop = true;
        }
        if (file.Name == "AxInterop.WMPLib.dll")
        {
            AxInterop = true;
        }
    }
    if (Interop & AxInterop) { }
    else
    {
        MessageBox.Show("Error: Interop.WMPLib.dll or AxInterop.WMPLib.dll is missing to run this player.\r\n Please put the 2 dll with this application in the same folder.");
    }
}

What I have tried:

I've tried with 2 threads.
I've tried with {try catch}.
No (good) results.

Posted 12-Jan-19 22:06pm

_Q12_

Updated 13-Jan-19 5:56am

v5

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Comments

Richard MacCutchan 13-Jan-19 5:03am

Why are you using threads and GetFiles? You could just try and load the actual DLLs to see if they are present.

_Q12_ 13-Jan-19 11:32am

I am sorry if i was't clear enough.
My Compiled exe is having this issue. Not the VS project.
I will modify right now my original question, actually.
And if you are referring to the compiled exe as i originally intended, then yes, when i put it With the 2 dll's in the same folder, then all is fine, indiferent of the folder location on my hdd.

Richard MacCutchan 13-Jan-19 12:31pm

Well, that is how it is supposed to work. When you try to access a DLL, Windows will search for it in the system library folders, folders specified in the PATH variable, and lastly the folder containing the executable. If the DLL is not found then the program will fail.

Richard MacCutchan 13-Jan-19 12:35pm

What is the value of "path" that you use to get the directory info? Also stop using threads to do this, they serve no purpose.

_Q12_ 13-Jan-19 12:54pm

string path = Application.StartupPath;
and then i use it: DirectoryInfo di = new DirectoryInfo(path);
My code is working fine. The problem is that the 'VideoPlayer' object is requesting those dll's when the form is initializing. I dont think it is even passing after InitializeComponent();
Like you said, "Windows will search for it(dll) in the system library folders" (which are located...where?)(probably i should move these dll's there to never have this problem in the future?) I wish i can move them in a custom folder, like a main from which every copy of my application, will 'know' where to look.
Another thing about my application is that i copy it where i need it to be - mostly in movies folders, to make a list of movies there, cycle them, sort,preview, etc.

Richard MacCutchan 14-Jan-19 4:11am

You should install the application and the dll files into the same folder. Use either Program Files, Program Files (x86), or Appdata\Local\Programs. That way you know that the entire system is ready for use.

[no name] 13-Jan-19 6:11am

A guess, why your code does not work: String comparison like you do is case sensitive. Anyway, I posted a solution which I hope is more easy and hopefully works ;)

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User 11060979 · Answer 1 · 2019-01-12T23:39:00

Solution 1

This more easy code should do the Job:

// exePath is defined by you...

//...  or determined  this waay
string exePath =System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location);

// Do the dll's exists in exe path
bool Interop =  File.Exists(Path.Combine(exePath, "Interop.WMPLib.dll"));
bool AxInterop=  File.Exists(Path.Combine(exePath, "AxInterop.WMPLib.dll"));

Posted 12-Jan-19 23:39pm

User 11060979

Updated 12-Jan-19 23:53pm

v3

Comments

_Q12_ 13-Jan-19 11:55am

ive edited my original question and added this:
My Compiled exe is having this issue. Not the VS project.
When i put it With the 2 dll's in the same folder, then all is fine, indiferent of the folder location on my hdd. The problem arise when i forget to move the dll's into application's folder.
My code is working fine. The problem is that the player object is requesting those dll's when the form is initializing. I dont think it is even passing after InitializeComponent();