[英]WIA Run-Time Check Failure #0 C++ (Windows Image Acquisition)
i try to use WIA to send data to a camera.我尝试使用 WIA 将数据发送到相机。 I need to develop this in C++ so i used the official "tutorial" on https://docs.microsoft.com/en-us/windows/win32/wia/-wia-wia-tutorial I know another project that works with C# and i want to do the same on C++ (C# Project on: https://github.com/pixeltris/SonyAlphaUSB )
我需要用 C++ 开发它,所以我使用了https://docs.microsoft.com/en-us/windows/win32/wia/-wia-wia-tutorial上的官方“教程”我知道另一个使用 C# 的项目我想在 C++ 上做同样的事情(C# 项目: https : //github.com/pixeltris/SonyAlphaUSB )
When i want to use Escape
Method https://docs.microsoft.com/en-us/windows/win32/api/wia_xp/nf-wia_xp-iwiaitemextras-escape i get the当我想使用
Escape
方法https://docs.microsoft.com/en-us/windows/win32/api/wia_xp/nf-wia_xp-iwiaitemextras-escape我得到
Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call.
This is usually a result of calling a function declared with one calling
convention with a function pointer declared with a different calling convention.
Error and i hope you can help me to resolve this.错误,我希望你能帮助我解决这个问题。 My code looks like this:
我的代码如下所示:
//initialize wia
HRESULT h = CoInitialize(NULL);
IWiaDevMgr* pWiaDevMgr = NULL;
//create wia device manager
HRESULT hr = CreateWiaDeviceManager(&pWiaDevMgr);
//show connected devices and get deviceId
BSTR bstrDeviceID = SysAllocString(L"");
HRESULT hr2 = EnumerateWiaDevices(pWiaDevMgr, &bstrDeviceID);
//create device with device id
IWiaItem* ppWiaDevice;
HRESULT hr3 = CreateWiaDevice(pWiaDevMgr, bstrDeviceID, &ppWiaDevice);
//case IWiaItem to IWiaItemExtras
IWiaItemExtras* ppWiaExtra = (IWiaItemExtras*)ppWiaDevice;
//try to send data
DWORD dwEscapeCode = 256;
BYTE* lpInData = new unsigned char[37]{ 0x01, 0x92, 0x00 , 0x00 , 0x00, 0x00, 0x00 , 0x00 , 0x00 , 0x01 ,
0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 ,
0x00, 0x00, 0x00, 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x03 ,
0x00 , 0x00 , 0x00 , 0x03 , 0x00 , 0x00 , 0x00 };
DWORD cbInDataSize = sizeof(lpInData);
BYTE* pOutData = new unsigned char[4]{ 0x00 , 0x00,0x00, 0x00};
DWORD dwOutDataSize = sizeof(pOutData);
DWORD pdwActualDataSize = NULL;
BSTR bstre = SysAllocString(L"");
//just to test if ppWiaExtra is working
HRESULT hr6 = ppWiaExtra->GetExtendedErrorInfo(&bstre); //works
//try to send data with Escape Method
//see https://docs.microsoft.com/en-us/windows/win32/api/wia_xp/nf-wia_xp-iwiaitemextras-escape
HRESULT hr5 = ppWiaExtra->Escape(dwEscapeCode, lpInData, cbInDataSize, pOutData, dwOutDataSize, &pdwActualDataSize); //Run-Time Check Failure #0
The Methods i use are the same as in the example code on https://github.com/microsoft/Windows-classic-samples/blob/master/Samples/Win7Samples/multimedia/wia/wiassamp/wiassamp.cpp我使用的方法与https://github.com/microsoft/Windows-classic-samples/blob/master/Samples/Win7Samples/multimedia/wia/wiassamp/wiassamp.cpp上的示例代码中的方法相同
The Escape Method is:逃生方法是:
virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE Escape(
/* [in] */ DWORD dwEscapeCode,
/* [size_is][in] */ __RPC__in_ecount_full(cbInDataSize) BYTE *lpInData,
/* [in] */ DWORD cbInDataSize,
/* [length_is][size_is][out] */ __RPC__out_ecount_part(dwOutDataSize, pdwActualDataSize ? *pdwActualDataSize : dwOutDataSize) BYTE *pOutData,
/* [in] */ DWORD dwOutDataSize,
/* [out] */ __RPC__out DWORD *pdwActualDataSize) = 0;
So how can i find the actual problem why the error is shown and how can i resolve it?那么我怎样才能找到显示错误的实际问题,我该如何解决呢?
(I use WIA1 because WIA2 doesn't find the device) (我使用 WIA1 因为 WIA2 找不到设备)
STDMETHODCALLTYPE
is defined in winnt.h as following:在 winnt.h 中定义如下:
#if defined(_WIN32) || defined(_MPPC_)
// Win32 doesn't support __export
#ifdef _68K_
#define STDMETHODCALLTYPE __cdecl
#else
#define STDMETHODCALLTYPE __stdcall
#endif
#define STDMETHODVCALLTYPE __cdecl
#define STDAPICALLTYPE __stdcall
#define STDAPIVCALLTYPE __cdecl
#else
#define STDMETHODCALLTYPE __export __stdcall
#define STDMETHODVCALLTYPE __export __cdecl
#define STDAPICALLTYPE __export __stdcall
#define STDAPIVCALLTYPE __export __cdecl
#endif
EDIT 1:编辑 1:
GetExtendedErrorInfo
now returns Not Implemented Error (but that's currently not so important for me)现在返回未实现的错误(但这对我来说目前并不重要)
The bigger Problem is that更大的问题是
ppWiaExtra->Escape
returns E_FAIL
and that one is unspecified, i think it's some pointer
problem again or an issue with my usage of sizeof
返回
E_FAIL
并且那个是未指定的,我认为这又是一些pointer
问题,或者是我使用sizeof
IWiaItemExtras* ppWiaExtra = (IWiaItemExtras*)ppWiaDevice;
This line is not correct;这行不正确; you can't just cast pointers to get different COM interfaces.
你不能仅仅通过转换指针来获得不同的 COM 接口。 That's what QueryInterface is for:
这就是QueryInterface的用途:
IWiaItemExtras* ppWiaExtra;
HRESULT result = ppWiaDevice->QueryInterface(IID_PPV_ARGS(&ppWiaExtra));
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