C / C++ / MFC

Krishnatv wrote:

"the client code can load the DLL and link to the functions at run time...

Krishnatv wrote:

...(instead of at compile time and link time).

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Krishnatv quoted:

That way, only one copy of a given library resides on a disk at any particular time. All the clients of the DLL simply share that one copy of the library, freeing up disk space and memory resources for other things.

ewighell wrote:

...I want to get a long filename, how?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

<br />
typedef DWORD (__stdcall *GETLONGPATHNAME)(LPCTSTR, LPTSTR, DWORD);<br />
<br />
/////////////////////////////////////////////////////////////////////////////<br />
//<br />
DWORD MyGetLongPathNameEx (CString& sPath)<br />
{<br />
	// Result<br />
	DWORD dwRet = 0;<br />
	<br />
	// Load the KERNEL32 library<br />
	HINSTANCE hdl = ::LoadLibrary ("KERNEL32.DLL");<br />
	if (hdl == NULL)<br />
		return dwRet;<br />
<br />
	// Get the function we will use (Not Unicode version)<br />
	GETLONGPATHNAME pfnGetLongPathName = (GETLONGPATHNAME) GetProcAddress (hdl, "GetLongPathNameA");<br />
	if (pfnGetLongPathName == NULL) {<br />
		::FreeLibrary (hdl);<br />
		return dwRet;<br />
	}<br />
<br />
	// Call the GetLongPathName function to converts the specified path to its long form.<br />
	dwRet = (pfnGetLongPathName) (sPath, sPath.GetBuffer (_MAX_PATH), _MAX_PATH);<br />
	sPath.ReleaseBuffer ();<br />
<br />
	// Unload library<br />
	::FreeLibrary (hdl);<br />
	return dwRet;<br />
}<br />
<br />
<br />
CString strDllFileName;<br />
DWORD Status = ::GetModuleFileName (hInst, (LPTSTR)(LPCTSTR)strDllFileName.GetBuffer (_MAX_PATH), _MAX_PATH);<br />
strDllFileName.ReleaseBuffer ();<br />
DWORD dwRet = ::MyGetLongPathNameEx (strDllFileName);<br />
TRACE(strDllFileName);<br />