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  • VS2008+QT+CYAPI开发USB程序问题

    采用VS2008开发QT程序时需要用到CYAPI的库和头文件,但在添加Cyapi.h后编译器报如下错误:

    d:\app\app\app\CyAPI.h(15) : error C2146: syntax error : missing ';' before identifier 'bLength'
    1>d:\app\app\app\CyAPI.h(15) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(15) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(16) : error C2146: syntax error : missing ';' before identifier 'bDescriptorType'
    1>d:\app\app\app\CyAPI.h(16) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(16) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(17) : error C2146: syntax error : missing ';' before identifier 'bcdUSB'
    1>d:\app\app\app\CyAPI.h(17) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(17) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(18) : error C2146: syntax error : missing ';' before identifier 'bDeviceClass'
    1>d:\app\app\app\CyAPI.h(18) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(18) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(19) : error C2146: syntax error : missing ';' before identifier 'bDeviceSubClass'
    1>d:\app\app\app\CyAPI.h(19) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(19) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(20) : error C2146: syntax error : missing ';' before identifier 'bDeviceProtocol'
    1>d:\app\app\app\CyAPI.h(20) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(20) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(21) : error C2146: syntax error : missing ';' before identifier 'bMaxPacketSize0'
    1>d:\app\app\app\CyAPI.h(21) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(21) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(22) : error C2146: syntax error : missing ';' before identifier 'idVendor'
    1>d:\app\app\app\CyAPI.h(22) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(22) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(23) : error C2146: syntax error : missing ';' before identifier 'idProduct'
    1>d:\app\app\app\CyAPI.h(23) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(23) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:\app\app\app\CyAPI.h(24) : error C2146: syntax error : missing ';' before identifier 'bcdDevice'

    而在MFC程序中却没有这个问题,最终发现是由于缺少window头文件造成的

    解决方法:

    先添加window头文件再包含Cyapi头文件

    #include <Windows.h>
    #include "CyAPI.h"

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  • 原文地址:https://www.cnblogs.com/hujianhua/p/2537034.html
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