Thread: memory usage keeps going up when retrieving webcam image

I've written a JAva program that uses JNI to call some C++ methods to retrieve webcam images using video for windows. The problem is that every time I retrieve an image, memory usage keeps going up. I'm still a noob to C++ so the problem may be something really simple. Here's my code:

Code:

HWND m_capWindow;
int connectedIndex;
LRESULT PASCAL callbackProc(HWND hWnd, LPVIDEOHDR lpVHdr);
LRESULT PASCAL callbackProc(HWND hWnd, LPVIDEOHDR lpVHdr)
{
	return 0;
}

JNIEXPORT void JNICALL Java_client_desktop_dateclick_Test_connect
  (JNIEnv *, jobject, jint index) {
		m_capWindow = capCreateCaptureWindow ("", WS_CHILD,	0, 0, 0, 0, GetDesktopWindow(), 10);
		//m_capWindow = capCreateCaptureWindow ("Capture", WS_CHILD | WS_VISIBLE,	50, 50, 480, 360, GetDesktopWindow(), 10);

		// connect to the new driver
		BOOL rval = capDriverConnect (m_capWindow, index);
		capSetCallbackOnFrame(m_capWindow, callbackProc);
		capPreview(m_capWindow, FALSE);
}




JNIEXPORT jbyteArray JNICALL Java_client_desktop_dateclick_Test_getImage
  (JNIEnv *env, jobject) {

	CString fileName;
	int contentLength;
	BYTE *frame;

    capGrabFrame(m_capWindow);
    //capGrabFrameNoStop(m_capWindow);
    fileName = "capframe.bmp"; //and use this file...
    capFileSaveDIB( m_capWindow, (LPCTSTR)fileName);

    CFile jpegTemp;
    // now read the resulting file into a buffer
    jpegTemp.Open("capframe.bmp", CFile::modeRead);
    contentLength = (UINT)jpegTemp.GetLength();
    //allocate the buffer for the jpeg frame
    frame = new BYTE[contentLength];
    //now read in the jpeg file
    jpegTemp.Read(frame, contentLength);
    jpegTemp.Close();

	jbyteArray ba = env->NewByteArray(contentLength);
	env->SetByteArrayRegion(ba, 0, contentLength, (jbyte*) frame); 

	delete frame

	return ba;
}

JNIEXPORT void JNICALL Java_client_desktop_dateclick_Test_disconnect
  (JNIEnv *env, jobject) {
			capDriverDisconnect(m_capWindow);
}