Hoping someone here on the forum's can put me right on the above matter, after reading some I thought I could achieve the task in the following steps...
[Visual C++]
[1] Convert AxisMediaControl image to system object
[2] Convert object to ByteArray
[3] Convert ByteArray to CharArray
[4] Assign CharArray to struct
[Native c++ DLL]
[1]CharArray from struct to IplImage* img
[Visual C++]
// Define struct to hold image data
struct AnalysisData
{
unsigned char* ImgData;
};
AnalysisData ImageData;
// Get current image of axAxisMediaControl1
int theFormat = 0;// 0=jpeg 1=BMP
Object^ theImgBuffer = gcnew Object();
__int32 theBufferSize;
this->axAxisMediaControl1->GetCurrentImage(theFormat, theImgBuffer, theBufferSize);
//Convert Image object to byte array
array<System::Byte> ^_ByteArray = ObjectToByteArray(theImgBuffer);
//Convert Byte Array to Char Array
for(int i = 0; i < _ByteArray->Length; i++)
{
ImageData.ImgData[i] = (unsigned char)_ByteArray[i];
//ImageData.ImgData[i] = static_cast<unsigned char>(_ByteArray[i]);
/*pin_ptr<System::Byte> p = &_ByteArray[i];
unsigned char* pby = p;
ImageData.ImgData[i] = reinterpret_cast<unsigned char>(pby);*/
/*
[NOTE]
Tried all the above but seems to hang here ??
*/
}
/*
Program continues & call native DLL...
*/
/************************************************
Convert object into byte array
************************************************/
array<System::Byte> ^ObjectToByteArray(System::Object ^_Object)
{
try
{
// create new memory stream
System::IO::MemoryStream ^_MemoryStream = gcnew System::IO::MemoryStream();
// create new BinaryFormatter
System::Runtime::Serialization::Formatters::Binary::BinaryFormatter^_BinaryFormatter = gcnew System::Runtime::Serialization::Formatters::Binary::BinaryFormatter();
// Serializes an object, or graph of connected objects, to the given stream.
_BinaryFormatter->Serialize(_MemoryStream, _Object);
// convert stream to byte array and return
return _MemoryStream->ToArray();
}
catch (...)
{
// Error
//Console::WriteLine("Exception caught in process: {0}", _Exception->ToString());
}
// Error occured, return null
return nullptr;
}[Native C++ DLL]
IplImage* img;
// Called DLL Function
AnalysisData DLL_EXPORT ImageProcess(struct AnalysisData *ImageData)
{
//Create IplImage* from struct data
CvSize size = cvSize(640,480);
img = cvCreateImageHeader(size, 8,3);
img->imageData = ImageData->ImgData;
//Continued...
}The problem seems to be here as it hangs, but that said wondering if the process is the right way to achieve the task ? or is it a bit long winded, any help would be appreciated many thanks.
//Convert Byte Array to Char Array
for(int i = 0; i < _ByteArray->Length; i++)
{
ImageData.ImgData[i] = (unsigned char)_ByteArray[i];
//ImageData.ImgData[i] = static_cast<unsigned char>(_ByteArray[i]);
/*pin_ptr<System::Byte> p = &_ByteArray[i];
unsigned char* pby = p;
ImageData.ImgData[i] = reinterpret_cast<unsigned char>(pby);*/
/*
[NOTE]
Tried all the above but seems to hang here ??
*/
}