Add a multiline edit box like this in your dialog :
class my_multi_line_edit_box
{
idc = -1;
type = 2; // CT_EDIT
style = 16; // ST_MULTI
// etc.
};
- Type the "enter" or "tab" key => It does not insert the willed character in the text field.
- Copy/paste a random text into the text field => All carriage returns and tabulations are replaced by spaces.