[求助]关于在CVI7.1中调用VC编写的DLL
小弟在用CVI7.1对视频采集卡做二次开发的时候遇到了problem，望各路大虾帮帮忙。视频采集卡是购买的成品，厂商提供了VC开发的DSK，在说明书上说的是在windows平台下用MVAPI.DLL控制采集卡，在二次开发程序中要加入#include "MVAPI.h"和#include "common.h"
按照以上说明做了，也加了DLL的引导库，但是编译的时候却过不去，总是说什么没有定义，不能识别（如图）。偶不才，不得其解，希望大虾指导~~~~~~
附程序
<img src="attachments/dvbbs/2005-12/20051242102732785.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-12/20051242102732785.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /> <P>把你的DLL转化为.lib格式，加入头文件，下面格式：</P>
<P>#include "extcode.h"<BR>#pragma pack(push)<BR>#pragma pack(1)</P>
<P>#ifdef __cplusplus<BR>extern "C" {<BR>#endif</P>
<P>void __cdecl DLL_LIB(void);//程序入口</P>
<P>MgErr __cdecl LVDLLStatus(CStr errStr, int32 errStrLen, void *module);</P>
<P>#ifdef __cplusplus<BR>} // extern "C"<BR>#endif</P>
<P>#pragma pack(pop)</P> Let me try！
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