为什么挂单在 mql4 中没有调整？ 错误：价格未申报。 这是 mql4 代码

Question

/ here i saved my last order's open price at op parameter. /

double op = OrderOpenPrice();

int ticket = SendOrder(_symbol,OP_SELLSTOP,0.02,op -0.0020,100, 0,0);

Answer 1

If you are trying to change existing orders you should be using OrderSelect() and OrderModify() .