ExpertsClient. Exe of 0 x04c69212 in untreated exception: 0 xc0000005: while reading position 0 xbaa-CodePudding

 
This - & gt; M_pRtmpLive=ECX_RtmpLiveSDK: : RtmpLiveAlloc (
(*) would be ((const) would be * (cstrRtmpUrl. ToStdString (). The c_str ())), 
(*) would be ((const) would be * (cstrRtmpUrl. ToStdString (). The c_str ())), 
(*) would be ((const) would be * (cstrAudioDevId. ToStdString (). The c_str ())), 
Resolution 320, 240,//
250, 25,//stream, frame rate 
(void *) UI. AxWidget_2 - & gt; Whether windowHandle (),//show preview picture 
() - rcAxwidget rcAxwidget. Right. The left (), rcAxwidget. The bottom () - rcAxwidget. Top () 
);

Which cstrRtmpUrl, cstrRtmpUrl, cstrAudioDevId are QString type,
Program memory error, when I was running to the
"ExpertsClient. Exe of 0 x04c69212 in untreated exception: 0 xc0000005: while reading position 0 xbaadf00d access conflict"

Keep testing the debugging for a long time, a lot of places, but still there is an error, really don't know is what reason, ask everybody to help, take a look at how to solve?
The function prototype:

 ECX_Export ECX_RtmpLive * __stdcall RtmpLiveAlloc (
Would be wstrRtmpUrl [M_DEF_ECX_DFT_DEV_NV_BUF_SIZE], 
Would be wstrVideoDevId [M_DEF_ECX_DFT_DEV_NV_BUF_SIZE], 
Would be wstrAudioDevId [M_DEF_ECX_DFT_DEV_NV_BUF_SIZE], 
Int int nWidth, nHeight, int nBits, int nFps, 
Void * hWndPreview, int nWidthPreview, int nHeightPreview 
);