IntPtr Causing Memory Leak?

Posted 09 April 2011 - 12:08 PM

This function is in a loop. When I run the program, the line with IntPtr is giving me memory problems, I've put delete[], but it still doesn't solve the memory problem, can anyone help please? thanks

void showImage(IplImage *img,System::Windows::Forms::PictureBox^ picturebox)
{

IntPtr ip(new unsigned char[img->widthStep*img->height]); // this line causing memory usage to keep going up very fast

//memcpy(ip.ToPointer(),img->imageData,img->widthStep*img->height);

//picturebox->Image = gcnew Bitmap(img->width,img->height, img->widthStep, System:rawing::Imaging::PixelFormat::Format24bppRgb, ip);

delete[] ip;
}