C / C++ / MFC

for(int i = 0; i < 9; i++)<br />
{<br />
if(capGetDriverDescription(i,sName.GetBuffer(),sName.GetAllocLength(),<br />
sVersion.GetBuffe(),sVersion.GetAllocLength()))<br />
    {			<br />
        m_Drivers.Add(sName);				 <br />
    }<br />
}

for(int i = 0; i < 9; i++)<br />
{<br />
   LPTSTR pNameStrBuff = 

sName.GetBuffer(256);<br />

sVersion.GetBuffer(256);<br />
<br />

,256);<br />
<br />

   sName.ReleaseBuffer();<br />

   if (fRet)<br />
   {			<br />
             m_Drivers.Add(sName);				 <br />
   }<br />

Mark Salsbery
Microsoft MVP - Visual C++

<br />
m_sLiveview.GetWindowRect(&m_Rect);<br />
	ScreenToClient(&m_Rect);<br />
	m_hwndCap = capCreateCaptureWindow(_T("USB"),WS_CHILD|WS_VISIBLE,m_Rect.TopLeft().x,m_Rect.TopLeft().y,m_Rect.Width(),m_Rect.Height(),this->GetSafeHwnd(),999);<br />
<br />
//	char szDeviceName[80];<br />
//	char szDeviceVersion[80];<br />
	CString szDeviceName; szDeviceName.GetBufferSetLength(100);<br />
	CString szDeviceVersion; szDeviceVersion.GetBufferSetLength(100);<br />
	CAtlArray<cstring> List;<br />
<br />
	for (int wIndex = 0; wIndex < 10; wIndex++) <br />
	{<br />
		if (capGetDriverDescription (wIndex, szDeviceName.GetBuffer(), szDeviceName.GetAllocLength(), szDeviceVersion.GetBuffer(),szDeviceVersion.GetAllocLength()))<br />
	    {<br />
		    List.Add(szDeviceName);<br />
		}<br />
	} <br />
	<br />
	capDriverConnect(m_hwndCap,List.GetCount()-1);<br />
	CAPDRIVERCAPS caps;<br />
	capDriverGetCaps(m_hwndCap,&caps,sizeof(CAPDRIVERCAPS));<br />
	<br />
	CString sMCIName;<br />
	if (caps.fHasDlgVideoSource)<br />
	{<br />
		capDlgVideoSource(m_hwndCap); 				<br />
	}<br />
<br />
	capCaptureAbort(m_hwndCap);<br />
	capSetCallbackOnError(m_hwndCap,NULL);<br />
	capSetCallbackOnCapControl(m_hwndCap,NULL);<br />
	capSetCallbackOnStatus(m_hwndCap,NULL);<br />
	capSetCallbackOnFrame(m_hwndCap,FrameCallbackProc);<br />
	capSetCallbackOnVideoStream(m_hwndCap, NULL);<br />
	capSetUserData(m_hwndCap,NULL);	<br />
<br />
	capPreviewRate(m_hwndCap,150);<br />
	capPreview(m_hwndCap,TRUE);<br />
</cstring>

Member 3509166 wrote:

So i think i need a way to get the device names instead
of the driver name

Mark Salsbery
Microsoft MVP - Visual C++

Stan the man wrote:

an easy way

George_George wrote:

the address of import function should be in the import library (.lib file) of the DLL

George_George wrote:

I am not sure whether the address of the function is contained in import library file, which is input to the linker

George_George wrote:

What is the content/format of import library file?

George_George wrote:

I have followed your comments to start a new thread

George_George wrote:

I mean how linker utilize the import library to generate two forms of call statement

George_George wrote:

one for the case with dllimport

George_George wrote:

one for the case without dllimport

Without __declspec(dllimport), given this code:

   void func1(void);

   void main(void)
   {
       func1();
   }
the compiler generates code that looks like this:

    call func1
and the linker translates the call into something like this:

    call 0x4000000         ; The address of 'func1'.

If 
func1
 exists in another DLL, the linker can't resolve this directly because it has no way of knowing what the address of 
func1
 is.