Thread: error C2440: 'type cast' HELP!!

Hi All,

I am having problems with the following bit of code.

Code:

void setTxParams(int h, int s, int p)
{
	ETHTransmit Tx;
	//Transmit Parameters
	Tx.ucTransmitMode = SINGLE_BURST_MODE;
	Tx.ulBurstCount = 10000;
	Tx.ucDuplexMode = HALFDUPLEX_MODE;
	Tx.ucSpeed = SPEED_100MHZ;
	Tx.ulInterFrameGap = 960;
	Tx.uiInterFrameGapScale = NANO_SCALE;
	//VFD1 Parameters
	Tx.ucVFD1Mode = HVFD_INCR;
	Tx.iVFD1Range = 6;
	Tx.uiVFD1Offset = 48;
	unsigned char vfdPattern[6];
	vfdPattern[1] = 0x11;
	vfdPattern[2] = 0x22;
	vfdPattern[3] = 0x33;
	vfdPattern[4] = 0x44;
	vfdPattern[5] = 0x55;
	vfdPattern[6] = 0x66;
	memcpy(Tx.ucVFD1Pattern, vfdPattern, 6);
	//Tx.ucVFD1Pattern = vfdPattern;
	Tx.uiVFD1CycleCount = 5;
	//VFD3 Parameters
	Tx.ucVFD3Mode = HVFD_ENABLED;
	Tx.uiVFD3Range = 2;
	Tx.uiVFD3Offset = 96;
	unsigned char vfdBuffer[6];
	vfdBuffer[1] = 0x08;
	vfdBuffer[2] = 0x00;
	vfdBuffer[3] = 0x08;
	vfdBuffer[4] = 0x06;
	vfdBuffer[5] = 0x81;
	vfdBuffer[6] = 0x37;
	memcpy(Tx.ucVFD3Buffer, vfdBuffer, 6);
	//Tx.ucVFD3Buffer = vfdBuffer;
	Tx.uiVFD3DataCount = 6;


	CHECKERROR(HTSetStructure(ETH_TRANSMIT, 0, 0, 0, 
		(void*) Tx, sizeof(Tx), h, s, p));
}

The error I keep getting is the following:

error C2440: 'type cast' : cannot convert from 'ETHTransmit' to 'void *

'

which is associated with the following line

Code:

CHECKERROR(HTSetStructure(ETH_TRANSMIT, 0, 0, 0, 
		(void*) Tx, sizeof(Tx), h, s, p));

According to the documentation I am consulting when doing this, the function HTSetStructure must be in the following form.

Code:

int HTSetStructure(int iType1, int iType2, int iType3, int iType4,
void* pData, int iLen, int iHub, int iSlot, int iPort);

Does anybody have any ideas what I am doing wrong and how to fix it?

Regards

Brownie

//Microsoft Visual C++ Express 2008 on Windows XP

Thanks.... Pointers have always confused me.

Brownie