how to get picture from webcam without showing resource box

See more:

VS2008

C#

Visual-Studio

VisualC++

I want to capture image from web cam without showing vedio display box.
I am using avicap32.dll.
When I call capDriverConnect(hMyWindow,index) it shows dialog box with capturing devices.

I already fill combo box with capturing devices.

my code is

HWND InitDevice(HWND m_hWnd,int w,int h,int index)   
{   
	wid=w;
	het=h;
	hMyWindow=NULL;
	if(hMyWindow==NULL)
	{
		//"Logitech Webcam Pro 9000"
		//"Microsoft WDM Image Capture (Win32)"
		LPCWCHAR webcamname;//=(LPCWCHAR)"Capture Window";
		//OPTIONAL STEP: Enable callback
		//capSetCallbackOnFrame(hMyWindow, capVideoStreamCallback); //hook callback function
		//|WM_CAP_DLG_VIDEODISPLAY
		hMyWindow = capCreateCaptureWindow(webcamname, WS_CHILD | WS_VISIBLE, 0, 0, wid,het,m_hWnd,0);
	}
	if (hMyWindow == NULL)   
	{   
		//AfxMessageBox("capCreateCaptureWindow error...");   
		return FALSE;   
	}   
	if(!capSetCallbackOnVideoStream(hMyWindow,NULL))  
	{   
		//AfxMessageBox("capSetCallbackOnVideoStream error...");   
		return FALSE;   
	}   
	if(!capSetCallbackOnError(hMyWindow,NULL))
	{
		//AfxMessageBox("capSetCallbackOnError error...");   
		return FALSE;   
	}
	if(!capSetCallbackOnFrame(hMyWindow,NULL))
	{
		//AfxMessageBox("capSetCallbackOnFrame error...");   
		return FALSE;  
	}
	if(!capSetCallbackOnStatus(hMyWindow,NULL))
	{
		//AfxMessageBox("capSetCallbackOnStatus error...");   
        return FALSE;
	}
	if(!capSetCallbackOnWaveStream(hMyWindow,NULL))
	{
		//AfxMessageBox("capSetCallbackOnWaveStream error...");   
        return FALSE;
	}
	if(!capSetCallbackOnYield(hMyWindow,NULL))
	{
		//AfxMessageBox("capSetCallbackOnYield error...");   
        return FALSE;
	}
	//
	if (!capDriverConnect(hMyWindow,index)) 
	{   
		//AfxMessageBox("capDriverConnect error...");   
		return FALSE;   
	}   
	if (!SetCapturePara())   
	{   
		capDriverDisconnect(hMyWindow);   
		return FALSE;   
	}  	
	return hMyWindow;   
}