Equivalent to kTextChar_FrameBoxBreak for "next cell"

An alternative: use any character, e.g. tab as column separator, return as row separator.

Then use the equivalent to menu Table >> Convert Text to Table … .

ITableUtils::ConvertTextToTable() should do, or the same in ITableSuite .

You should think of each cell in a table as its own text frame - they are not contiguously linked the way that columns in a text frame or linked text frames across a story are. Rather, each cell is in a way its own story.  It's complicated in the C++ API, because there is one ITextModel that spans all the linked frames as well as all the contained tables, but within the text model there are a set of ITextStoryThread objects, managed by an ITextStoryThreadDict. Examples of ITextStoryThread objects include table cells, footnotes, notes, text macros, and deleted text. See ITextStoryThread.h for a better explanation.

To fully answer your question, you'll need to be more specific about what you're trying to achieve. Are you trying to actually set the selection in each cell? Are you trying to insert text in each cell? You may want to look at the table model iterator as a way to iterate through the cells of a table model:

ITableModel::iterator tableItr(tableModel->begin());
ITableModel::iterator tableItrEnd(tableModel->end());

for(; tableItr != tableItrEnd; ++tableItr)
{
	InterfacePtr<ICellContent> cellContent(tableModel->QueryCellContentBoss(*tableItr));
	if(cellContent == nil)
	{
		ASSERT(cellContent);
		break;
	}
	
	InterfacePtr<ITextStoryThread> textStoryThread(cellContent, UseDefaultIID());
	if(textStoryThread == nil)
	{
		ASSERT(textStoryThread);
		break;
	}
	
	TextIndex startIndex = textStoryThread->GetTextStart();
	TextIndex endIndex = textStoryThread->GetTextEnd();

[do whatever you need here]

But it's hard to fully answer without knowing more what you're trying to achieve.

Hi @Olivier Beltrami I don't think there is any break character for changing the cell. The tab key is actually not inserting any character but acts like a shortcut for an action. I think you will explicitly have to target the insertionpoint in the desired cell.

-Manan