为啥老提示“'_CommandPtr' : undeclared identifier”偶的#include 全写了呀！！(在线...)

[wokagoka]

#include "_recordset.h"
#include "field.h"
#include "fields.h"
#include "comutil.h"
#include "adodc.h"
.
.
.
_CommandPtr myCmd;
myCmd.CreateInstance(__uuidof(Command));
myCmd->ActiveConnection = m_Ado.GetConnectionString();

[柯本]

ADO定义要用import导入,如:

#import "e:\program files\common files\system\ado\msado25.tlb" no_namespace rename("EOF","adoEOF")

[wokagoka]

e:\visual studio projects\winform\vcwithado\debug\msado25.tlh(403) : warning C4146: unary minus operator applied to unsigned type, result still unsigned

ompiling...
VCWithAdoDlg.cpp
E:\Visual Studio Projects\WinForm\VCWithAdo\VCWithAdoDlg.cpp(207) : error C2065: '_CommandPtr' : undeclared identifier

VCWithAdo.exe - 46 error(s), 1 warning(s)

[柯本]

你的msado25.tlh怎么会在
e:\visual studio projects\winform\vcwithado\debug\
目录下?

[柯本]

不好意思,看错了,你加
#include <comdef.h>
试试

[wokagoka]

加了
#include "icrsint.h"
#include <comdef.h>
那个warn没了
可是_CommandPtr还是没定义！！-_-!

[柯本]

_CommandPtr应该在comdef.h是定义的,你把多余的(不是系统的)include去掉只写
#include <comdef.h>
#include <objbase.h>
#import "e:\program files\common files\system\ado\msado25.tlb" no_namespace rename("EOF","adoEOF")

试试

[CPPLOVER_78]

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