sgCScene > StartUndoGroup

bool sgCScene::StartUndoGroup()

Description:

Begins saving commands into the scene history. All the commands to work with the scene and its objects will be saved to the undo group before you call the EndUndoGroup function, i.e. this group will be undo using the Undo function.

Arguments:

No arguments.

Returned value:

Returns false if the function fails and true otherwise.

Example:

sgLine* line1 = sgCreateLine(0.0, 0.0, 0.0, 2.0, 3.0, 5.0);

sgLine* line2 = line1->Clone();

sgGetScene()->StartUndoGroup();

sgGetScene()->AttachObject(line1);

sgGetScene()->AttachObject(line2);

sgGetScene()->EndUndoGroup();

sgGetScene()->Undo();