如何在运行时增加结构数组的大小

我有一个结构，想要增加数组大小每当SendMessage函数调用

struct MQStruct {
    wchar_t *serviceName; 
    int durability; 
    int msgType; 
    int msgHeader; 
    wchar_t *msgId; 
    wchar_t *payload; 
    int payloadSize; 
    int ttl; 
    int priority;
}MQStructObj[1];

int SendMessage(wchar_t *serviceName, int durability, int msgType, int msgHeader, wchar_t *msgId, wchar_t *payload, int payloadSize, int ttl, int priority) {
//Want to add one more array object and also preserve data of previous
MQStructObj[MAX+1]
return 0;
}