[BEPECK]

FormControl control;
FormRun form;
FormDesign design;
str strtmp;
DialogRunbase dialog;
...
dialog = dialog::newFormnameRunbase(formstr(form5),this);
dialog.doInit();
form = dialog.formRun();
design = form.design();
control = design.controlName('ИМЯ КОНТРОЛА В ФОРМЕ');
strtmp = control.valueStr();