C / C++ / MFC

BlitzPackage wrote:

Do you also know how to use the CImage::SetTransparentColor(...) function?

CToolBarCtrl ToolBar;
CImageList MyImageList;

static TBBUTTON ToolBarButtonDescs[] =
{
	{0, ID_BUTTON1, TBSTATE_ENABLED, TBSTYLE_BUTTON, {0,0}, 0, 0} ,
	{1, ID_BUTTON2, TBSTATE_ENABLED, TBSTYLE_BUTTON, {0,0}, 0, 0} //,
};

MyImageList.Create(IDB_BITMAP, 18, 18, RGB(0x00,0xFF,0x00));

ToolBar.Create(WS_CHILD | WS_VISIBLE, CRect(0,0,100,20), this, ID_TOOLBAR);
ToolBar.SetImageList(&MyImageList);
ToolBar.AddButtons(sizeof(ToolBarButtonDescs) / sizeof(TBBUTTON), ToolBarButtonDescs);

BlitzPackage wrote:

For buttons, I guess I will use the SetImageList function...right?

CButton button;
...
button.SetIcon(AfxGetApp()->LoadIcon(IDI_ICON));

void PrivacyCleaner::OnClose() <br />
{<br />
	// TODO: Add your message handler code here and/or call default<br />
<br />
	::ShowWindow(maindlg, SW_SHOW);<br />
	CDialog::OnClose();<br />
}<br />
<br />
void PrivacyCleaner::OnCloseButton() <br />
{<br />
	CDialog::EndDialog(0);<br />
	OnClose();	<br />
}

Tarek Jabri wrote:

mshflexgrid problem

LPTSTR FileHelper::GetFileFullPath( LPWSTR lpwName )
{
	LPTSTR lptFileFullPath;

	DWORD LenInChars = GetCurrentDirectory( 0, NULL );

	++LenInChars; // add 1 for NULL terminator

	LPWSTR lpwFolder;
	lpwFolder = (LPWSTR) malloc( LenInChars * sizeof(TCHAR) );

	if ( lpwFolder == NULL )
	{
		return NULL; // or throw new CIScrewedUpException();
	}

	if ( GetCurrentDirectory( LenInChars, lpwFolder ) != 0 )
	{
		// added 1 for NULL terminator
		LenInChars = (DWORD) ( wcslen( lpwFolder ) + wcslen( lpwName ) + 1 );

		lptFileFullPath = (LPTSTR) malloc( LenInChars * sizeof(TCHAR));

		// Here lptFileFullPath simply evaluates to NULL, showing the ?!
		if ( lptFileFullPath == NULL )
		{
			// prevent memory leak
			free( lpwFolder );
			return NULL;
		}

		// ...the rest of the code stripped off...
	}

	// prevent memory leak
	free( lpwFolder );

	return lptFileFullPath;
}

damir_tk wrote:

1. Why malloc sucks, I don't see any problems with it. New and delete is better when you are creating some objects that have a constructor and a destructor, as they get called automatically, but not if you use malloc. But here I only use strings and string pointers, so why?

damir_tk wrote:

2. I already rewrite the code, to use something like:

lpwFolder = (LPWSTR) malloc( (len + 1) * 2 );

Is it wrong? (Apart from not being elegant :=) ).

3. I use _tcslen instead of wcslen, is it better suited here?

LPTSTR FileHelper::GetFileFullPath( LPCTSTR lpwName )
{
	LPTSTR lptFileFullPath;
	DWORD LenInChars = ::GetCurrentDirectory( 0, NULL );
	++LenInChars; // add 1 for NULL terminator
	LPTSTR lpwFolder = new TCHAR[ LenInChars ];
	if ( lpwFolder == NULL )
	{
		return NULL;
	}
	if ( ::GetCurrentDirectory( LenInChars, lpwFolder ) != 0 )
	{
		// I added 6 like you did before...you may need more chars for backslashes and such
		LenInChars = (DWORD)( _tcslen( lpwFolder ) + _tcslen( lpwName ) + 6 );
		lptFileFullPath = new TCHAR[ LenInChars ];
		if ( lptFileFullPath == NULL )
		{
			// prevent memory leak
			delete[] lpwFolder;
			return NULL;
		}
		// ...the rest of the code stripped off...
	}
	// prevent memory leak
	delete[] lpwFolder;
	return lptFileFullPath;
}