我正在使用 MIDL 协议(RPC),我试图通过引用分配的 unsigned char 内存来传递指针。但只有数组的第一个属性填充了正确的值。
中间代码:
// File FPGA_RPC_MIDL.idl
[
// A unique identifier that distinguishes this interface from other interfaces.
uuid(00000001-EAF3-4A7A-A0F2-BCE4C30DA77E),
// This is version 1.0 of this interface.
version(1.0)
]
interface FPGA_RPC_MIDL // The interface is named FPGA_RPC_MIDL
{
int get_Message([ref, out] unsigned char* message_out);
}
服务器代码:
int get_Message(
/* [ref][out] */ unsigned char *message_out)
{
message_out[0] = 0x25;
message_out[1] = 0x26;
message_out[2] = 0x27;
return 0;'
}
客户端代码:
int main
{
message_out = (unsigned char *)malloc(sizeof(unsigned char)*3);
get_Message(message_out);
printf("%x, %x, %x",message_out[0],message_out[1],message_out[2])
}
输出:
25,0,0
我如何通过引用传递所有数组?