DirectX Win7 X64 problem

Question

4.00/5 (1 vote)

See more:

I have been working on some audio programs using DirectX. I have been developing them on XP and was surprised to find that the programs would not run under Win7 X64. I have the DirectX SDK June 2010 installed on both OS's. In order to isolate the problem I created this simple piece of code.

MIDL

namespace Win7AudioTest
{
    public partial class Form1 : Form
    {
        // This code compiles and runs under XP with Vis2008
        // it compiles under Win7 with Vis2008 (Build Succeeded)
        // but will not run unless the next line is commented out.

        public Audio _audio = null;

        public Form1()
        {
            InitializeComponent();
        }
    }
}

Any suggestions would be appreciated.

Posted 9-Apr-11 3:46am

electriac

Add a Solution

Comments

Yanick Salzmann 9-Apr-11 11:43am

How does the "will not run" manifest itself? Do you get an exception? Isnt it doing anything or whats the problem?

[no name] 9-Apr-11 11:49am

I get the window Win7AudioTest has stopped working

Yanick Salzmann 9-Apr-11 11:54am

And what is the debugger telling if you are starting it in debug mode? And if you open the More details view in the "has stopped working"-window does it show you an exception type?

[no name] 9-Apr-11 11:59am

I get error 2652

[no name] 9-Apr-11 12:19pm

This is the compiler debug inf:

System.BadImageFormatException was unhandled
Message=" is not a valid Win32 application. (Exception from HRESULT: 0x800700C1)"
Source="Win7AudioTest"
StackTrace:
at Win7AudioTest.Form1..ctor()
at Win7AudioTest.Program.Main() in G:\SourceCode\2008\Media Progs\DX9 Development\Win7AudioTest\Win7AudioTest\Program.cs:line 18
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:

Yanick Salzmann 9-Apr-11 12:27pm

Is the XP system a 32 Bit operating system?

[no name] 9-Apr-11 12:29pm

XP is 32bit and no problem. Win7 is 64bit.

Yanick Salzmann 9-Apr-11 12:36pm

Yes, i didnt see the x64 in my first few comments but see the "solution", x64 isnt supported by Micrisoft.DirectX... (and never will be), XNA maybe will support it later.

[no name] 9-Apr-11 12:40pm

Yet another reason to stay with XP. The list gets longer every day.

Yanick Salzmann 9-Apr-11 12:44pm

Isnt a problem, just make sure your application is run as a 32 Bit executable. I run XNA on my 64 Bit Win7 without any problems.

[no name] 9-Apr-11 12:47pm

How do I run it as 32bit. Sorry for the stupid question but could not find that alternative.

Yanick Salzmann 9-Apr-11 12:57pm

In your project settings change "Any CPU" or "x64" to "x86" so that its only for x86.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Yanick Salzmann · Answer 1 · 2011-04-09T06:31:00

Solution 1

I guess you are using managed DirectX (Microsoft.DirectX namespaces). Its no longer supported by microsoft and doesnt work with x64 (neither does XNA). If you want to use managed DirectX in x64 you may think about SlimDX.

Posted 9-Apr-11 6:31am

Yanick Salzmann

electriac · Answer 2 · 2011-04-09T07:02:00

Solution 2

Yanick and Luc Pattyn

Many thanks between you folks you have solved my problem. I had never noticed the CPU setting before. I recompiled 32bit and problem was solved.

Many Thanks

Posted 9-Apr-11 7:02am

electriac

Comments

Luc Pattyn 10-Apr-11 4:52am

you're welcome. :)