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5仿真币
我现在用c++编写了一个程序，希望能够和extend交换数据，以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序，但搞得不是很懂。比如说，c++程序向extend发送一个数据：
% H$ r, Z& B6 J5 @. K$ q$ V( HName = (WCHAR *) L"Poke";' L) Q, _7 h" ]/ [- u/ ]7 x
6 L9 ^6 }; T( ?7 L* Q" l% O8 ~; Q hr = m_pDisp->GetIDsOfNames ($ F) w( s2 b# S
IID_NULL, // reserved+ o: @8 E. Q- X; o7 e. o# Z
&Name, // Array of names to get IDs for9 R, m t$ |" W
1, // # of names in the array+ S" `8 o, b' w. U7 K. Q, a8 ]
LOCALE_SYSTEM_DEFAULT, // System locale# n8 q ~* [! m$ `' M5 ]# g
&pokeID); // Array of IDs to fill on output
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0 X0 \. y, H; O. e+ s0 ? if (hr), @5 [) b6 H/ f" j+ D
{5 c" `$ ^4 B- L4 u" h: K
MessageBox ("Get Poke Unsuccessful");, T8 ]( x0 {% n4 U' c
return;
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/**************************传递数据给extend**************************************/
5 g3 d0 J5 v- d Z! q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");1 }) k! C# W$ X8 D6 j$ h" s
VariantInit(&pokeVariant[0]);
( k: E& r! q, L- b pokeVariant[0].vt = VT_BSTR;0 J0 O: r2 p9 K8 i- F% D8 S* L
pokeVariant[0].bstrVal = valueStr;
* Q" ~* W5 K6 U4 H# e7 S+ C
8 l' k5 u: u" |# G7 Z/ y @: D$ [' { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& R v `8 u0 Y' i* _" k7 n2 C
VariantInit(&pokeVariant[1]); 2 Q/ u; V! q+ C. n5 f
pokeVariant[1].vt = VT_BSTR;. ^/ M7 O/ E2 x& c. {4 y7 a
pokeVariant[1].bstrVal = itemStr;
# d% Y- z3 I3 n9 n* G- z
/ J: O" k! M% K* V6 b: R topicStr = SysAllocString((WCHAR *) L"system");0 _ e. b- K Z) B2 K0 p
VariantInit(&pokeVariant[2]); P: F& W- j# U" I+ l5 u
pokeVariant[2].vt = VT_BSTR;7 \" n4 y! ]2 }' y
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;" V2 x/ V: M) v4 d) g, q
dp.cArgs = 3;
, W% I# _4 U. ^1 ]# K' m- h T' D dp.rgdispidNamedArgs = NULL;- i; n- ~' j9 v( Z, T; H+ C2 w* t9 G
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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$ p( P7 E$ n( D- f5 {' i hr = m_pDisp->Invoke(7 E- p0 h" k7 p7 L# `
pokeID,
% g6 p4 i( t) e# V6 M1 I( D9 q IID_NULL, H/ R" T: q/ f3 c; j) f9 ]2 @
LOCALE_SYSTEM_DEFAULT,
% t P O7 Y: H3 T$ U DISPATCH_METHOD,
. }0 I+ [5 F3 r, @. { &dp,. m' Y& y* ?; H6 ^. m+ H
NULL,
5 z& O" n% d) |( V+ b* d9 j &ei,
/ V# _5 [2 y* J& y6 n5 T9 @% [ &uiErr);
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SysFreeString(topicStr);+ f- A e2 g- L8 L
SysFreeString(itemStr);
7 I4 h8 k7 N+ r& d. X0 P SysFreeString(valueStr);
* ?. _6 y: r" Z8 k, b6 E" k- F6 S+ M
现在这个程序可以实现将1232这个数据发送到extend，extend有一个对话框弹出并出现1232这个数据，不知道这个对话框为什么会弹出并显示这个数据？？？
2 ~0 `5 f; k' p+ M! B此外我希望将这个数据赋给extend程序里面的一个变量，请问如何实现？？？？$ u) _. O* l5 n( _# H" U6 y
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2.这是request的程序
( e, ^" U7 t; L! D$ L! d// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
! C, ~8 b; R& ?, j- H// type flag to indicate the fact that this variant holds a BSTR. Place the) C3 w$ J. R4 k* c- }8 q
// BSTR into the variant structure.
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7 A# B9 s, }9 b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 e8 o1 m# K7 ], v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" j. ]/ v9 T/ u# w( m4 t VariantInit(&requestVariant[0]); 6 o/ ?! K* c0 o. i7 C' A. X% `
requestVariant[0].vt = VT_BSTR;8 M/ Y; [ v% P
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
' c! X! Y B5 d5 Q' c VariantInit(&requestVariant[1]); / ^' M6 h, ^0 n7 U/ M) c/ e
requestVariant[1].vt = VT_BSTR;
' o" Z0 D& C. p* K! V- h% \ requestVariant[1].bstrVal = topicStr;5 X! [5 ]! Z, `: b- C+ u
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
4 U9 R9 Z- I# J) y. o# K( K dp2.cArgs = 2;
$ d1 n& L1 {1 L% Y dp2.rgdispidNamedArgs = NULL;
% D0 B2 r x5 r* K dp2.cNamedArgs = 0;3 c9 u3 R& h# D, q
8 B( ]# J/ u; z6 O var.vt = VT_EMPTY;2 |: b" u% j: L" \
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// Call IDispatch::Invoke()$ u8 R5 s" l! Q ?8 t* c/ ]
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hr = m_pDisp->Invoke(
# f! ]2 m0 c: N8 e requestID,
# Z) R% O3 I" T( g. D9 f0 v4 w IID_NULL,+ p& Y5 ]8 Z3 s- O4 R
LOCALE_SYSTEM_DEFAULT,
# b( G1 L [1 f; e% q DISPATCH_METHOD,9 V4 s9 l1 i/ Z8 v ?! \* H
&dp2,
/ D- ?2 u/ p5 `9 o &var,
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&uiErr);
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SysFreeString(topicStr);
2 U, d3 e- Y b7 [ SysFreeString(itemStr);* h# Q- ]( x% Q! h/ Y$ S1 m
请问该程序是获得extend里面的哪个值？
9 w d, B8 a3 \- L如果我希望获得extend程序里面的某个变量的数值，那个c++程序应该如何实现？？？？ |
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发表于 2008-11-25 19:37:03
