About five months ago I tried using the XEM with Visual Basic 6. I was able to get it up and running but ran into problems with inconsistent data reads. Testing of the problem seemed to pointto the fact that data was being lost in the transfers. A co-worker, who is in Germany, is using the XEM with Visual C++ version 6. He reports having no problems with the XEM. So based on this I decided to move to C++. My problem is that I have very minimal experience with C++. I purchased a book and the corresponding software for Visual Studio .NET 2003 with Visual C++.
My understanding, through reading OK documentation and the forums, is that the DLL and corresponding files were written in Visual Studio .NET and that the people at Opal Kelly have not yet moved to version 2005. So it appears we are working from the same design environment. I have been able, to a limited degree, to communicate with an XEM board if I write a console program. I am still having problems with the pll portion, but I can write to a WireIn and make the LEDs toggle. Better than nothing so far.
I have been unable to make the software work with a windows program. When I start a new project I go under Visual C++ Projects and select Windows Forms Application (.NET). The code below is generated for the project. I put some controls on the form that I would eventually like to use to test various functionality of the XEM. I have tried putting #include “okFontPanelDLL.h” in various places and get all kinds of errors depending on the location of the statement. The design environment either does not recognize the #include or it does not recognize the class objects for the XEM at compile time.
Does the FrontPanel API work with a Windows Forms Application? If so, where do I put the #include statement? How exactly do I link okFrontPanel.dll to the project? Does anyone have a short example using the API with a Windows Forms Application?
Sorry if these questions seems simple or stupid, but I have become overwhelmed trying to figure this out by myself.
//******************************************************************
// Form1.cpp
//******************************************************************
#include “stdafx.h”
#include “Form1.h”
#include
using namespace XEMWindowsFormApplication;
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
System::Threading:
:CurrentThread->ApartmentState = System::Threading::ApartmentState::STA;
Application::Run(new Form1());
return 0;
}
//******************************************************************
// Form1.h
//******************************************************************
#pragma once
namespace XEMWindowsFormApplication
{
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
///
/// Summary for Form1
///
/// WARNING: If you change the name of this class, you will need to change the
/// 'Resource File Name' property for the managed resource compiler tool
/// associated with all .resx files this class depends on. Otherwise,
/// the designers will not be able to interact properly with localized
/// resources associated with this form.
///
public __gc class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
}
protected:
void Dispose(Boolean disposing)
{
if (disposing && components)
{
components->Dispose();
}
__super::Dispose(disposing);
}
private: System::Windows::Forms::Button * cmdConfigFPGA;
private: System::Windows::Forms::Button * cmdWireIn;
private: System::Windows::Forms::Button * cmdWireOut;
private: System::Windows::Forms::Button * cmdTriggerIn;
private: System::Windows::Forms::Button * cmdTriggerOut;
private: System::Windows::Forms::Button * cmdSetPLL;
private: System::Windows::Forms::Button * cmdSetCLK;
private: System::Windows::Forms::Button * cmdPipeOut;
private: System::Windows::Forms::ProgressBar * progressBar1;
private: System::Windows::Forms::TextBox * txtWireIn;
private: System::Windows::Forms::TextBox * txtTriggerIn;
private: System::Windows::Forms::TextBox * txtP;
private: System::Windows::Forms::TextBox * txtQ;
private: System::Windows::Forms::TextBox * txtDiv;
private: System::Windows::Forms::TextBox * txtF;
private: System::Windows::Forms::TextBox * txtConfigFPGA;
private:
///
/// Required designer variable.
///
System::ComponentModel::Container * components;
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
void InitializeComponent(void)
{
// I deleted all this code because it was generated by the software and // dealt only with controls I placed on the forms.
}
System::Void Form1_Load(System::Object * sender, System::EventArgs * e)
{
MessageBox::Show(S"Hello");
}
};
}
)