EInvalid operation :Canvas dose not allow drawing.我不知道错哪啊,很着急
代码如下,我试过了,不是panels->items错,是不是ShowMessage错,弹出式对话框怎么控制?怎么得到只显示在最前的对话框?
switch (atoi(cAckCode)){
case 0:
Form1->StatusBar1->Panels->Items[5]->Text = "成功";
break;
case 1:
Form1->StatusBar1->Panels->Items[5]->Text = "";
Form1->StatusBar1->Panels->Items[5]->Text = "前置机处理错误";
ShowMessage("前置处理错误,错误代码:1");
break;
case 2:
Form1->StatusBar1->Panels->Items[5]->Text = "";
Form1->StatusBar1->Panels->Items[5]->Text = "权限错误";
ShowMessage("前置处理错误,错误代码:2");
break;