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: ) Q2 S$ S j( J" N( SName = (WCHAR *) L"Poke"; 5 G" P4 a5 T4 K, n5 X 9 C* T+ ^2 O* q( c) ]) i hr = m_pDisp->GetIDsOfNames (6 R" N: A; {' S
IID_NULL, // reserved 8 b4 R/ U" w% |9 ?& J3 u &Name, // Array of names to get IDs for5 @" N$ A; T/ D
1, // # of names in the array# ?/ F7 O b: ?( H" l
LOCALE_SYSTEM_DEFAULT, // System locale) G5 D7 z% C0 ?( b2 Z7 B( u L
&pokeID); // Array of IDs to fill on output' f" M! t; ^% l+ z4 A, @
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if (hr)+ r N; t V( k0 `6 D8 |/ R
{" \$ {- k9 ~( `8 q( }2 k! _
MessageBox ("Get Poke Unsuccessful");3 U# p: N( Y' F. n9 j* j
return; # V6 a# w1 @* A. e& e& ] }+ l* c7 O2 ]6 _" O, l
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/**************************传递数据给extend**************************************/ 5 N+ T; G( [, a+ g# c# f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 E3 i+ C+ l6 ~& v6 c5 K6 |4 C ( F. z6 X0 V% h/ t' o# d
valueStr = SysAllocString((WCHAR *) L"1232"); 5 r( b* _7 @5 [1 Z7 v4 n VariantInit(&pokeVariant[0]); 9 Y5 H! ^* ~4 g/ R1 J4 K' z+ @ pokeVariant[0].vt = VT_BSTR;& W5 A# B! R+ q+ U8 x8 K1 N( H$ u) E
pokeVariant[0].bstrVal = valueStr;6 J5 W' w+ `9 J( \. ]1 }
$ q5 {/ W; I" h S5 N' r3 C) n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' q' p5 p3 l, @
VariantInit(&pokeVariant[1]); 2 b7 ~! o; |* V0 V pokeVariant[1].vt = VT_BSTR;1 L+ W5 V: x7 h3 q
pokeVariant[1].bstrVal = itemStr;8 P& ?9 G" }; D% I+ f! I, l; N+ ~) ]
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topicStr = SysAllocString((WCHAR *) L"system");' N. w/ ]$ ?* H( B# |
VariantInit(&pokeVariant[2]); 4 V1 G9 V5 Y! f$ W, k, q3 G pokeVariant[2].vt = VT_BSTR; 8 {& D+ [8 t: o pokeVariant[2].bstrVal = topicStr;1 a0 a) }% K# X3 C/ t* @# A, {
, V5 G. D0 d) I9 X// Set the DISPPARAMS structure that holds the variant.% c5 Y: y- i2 t4 B/ X2 V
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dp.rgvarg = pokeVariant;1 Z4 b' [! r( U( Z
dp.cArgs = 3; # j& \9 {$ G D, l dp.rgdispidNamedArgs = NULL; 1 B9 D0 w+ f7 W7 _ dp.cNamedArgs = 0;* e1 C) @/ W2 C! q" g# q0 D
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// Call IDispatch::Invoke() 6 S7 ], c6 L- M6 S O2 F% l! _- i2 ^, s
hr = m_pDisp->Invoke( , |/ J8 A9 ^& M" A pokeID,% {) B' I1 g# w0 v, @% I$ B$ T
IID_NULL, $ p B! i8 x6 o( }' O" C! h* @& U- X( F LOCALE_SYSTEM_DEFAULT,; \# O) D3 i' m# N b" K
DISPATCH_METHOD, 3 b- [1 k3 X. ]2 V &dp, $ H" F- o- ] @1 W+ g/ h. c NULL, ; r2 B7 y7 y" |2 ` &ei, $ [/ W" J9 h: M7 t &uiErr); $ N6 Y4 p: |: [9 U5 [: v! @' }4 k. w- T2 z% l: ~( d5 J. l
SysFreeString(topicStr);6 v8 O* h; x; w
SysFreeString(itemStr);/ D. `+ X- X5 d1 G
SysFreeString(valueStr); ' F }5 e5 X P" k/ r$ ]1 W. s) _9 s! T% n8 c/ Y
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???1 Q5 R: L- F& e. {$ n0 Y- ~6 ~0 C
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????. K8 q2 r, L9 C
; k- e9 D$ N2 Q' ]4 f 5 V: `4 T( C+ T n% Z2.这是request的程序7 h9 w' l- o' T9 N1 E
// Request a value from Extend7 x. u# T* O# c: J0 y3 B( Q$ x/ L
// X5 o5 }, P0 F0 Q9 ~// Initialize the variant that will hold the BSTR. Set the variant's - Y% ?. f* Y! B8 b) B// type flag to indicate the fact that this variant holds a BSTR. Place the 0 }( }& V' I( ]// BSTR into the variant structure. # h3 G. g* A; L$ Y% L & Q" J- ^+ @6 H' r1 T) ^# V( _9 v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 f* Q% a7 I( n* r W
% N: F+ U! x6 B( E4 e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 A/ H( v# E9 v7 @9 E* a9 W9 W VariantInit(&requestVariant[0]); / T. ^3 o+ ]; l
requestVariant[0].vt = VT_BSTR; & g7 Z6 V8 G8 G6 O requestVariant[0].bstrVal = itemStr;8 X2 \1 ?; e* r2 e6 U9 g2 v: Q7 G
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topicStr = SysAllocString((WCHAR *) L"system");/ w+ L2 ]/ N2 e2 [2 ]: y1 M
VariantInit(&requestVariant[1]); 9 ^4 O- Z m4 _
requestVariant[1].vt = VT_BSTR;% t! _9 C+ u" A) i: \+ R4 N: K
requestVariant[1].bstrVal = topicStr; 2 y. V; _# \" }: E/ V0 c3 Z: N# K# A, v+ t3 Z! b+ U. a/ S8 d5 Q
// Set the DISPPARAMS structure that holds the variant.# D3 ^+ T# G W
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dp2.rgvarg = requestVariant; % D9 y# k- P3 C3 t$ W$ x I dp2.cArgs = 2; % l1 w: \/ J7 c1 E dp2.rgdispidNamedArgs = NULL; % B' O9 D; n5 p7 h dp2.cNamedArgs = 0; ; S. J( \3 ]2 r/ T( n8 i, p( u0 t$ B P
var.vt = VT_EMPTY; . @( L8 D! y# @8 g7 d. n& U q0 i# Q8 J$ z: h
// Call IDispatch::Invoke() 6 y7 G( B+ _/ @6 C' W# u, i$ w# i / f, l6 Q- d3 P6 ` hr = m_pDisp->Invoke(# o6 r2 m. `, G: n, }
requestID, 0 K! \! K3 W% n2 b/ {. q IID_NULL,9 Q7 v1 }3 J8 Q" b0 l }$ c
LOCALE_SYSTEM_DEFAULT, / r, n6 O0 |3 G* h) G- ? DISPATCH_METHOD,$ {" O1 h* j3 |. @
&dp2, 2 F! X6 V1 Y' y, B) {9 F &var,. q% D! s; ^' P5 t' S# l# A
&ei, ]6 a) T7 U. n4 j0 C, D- e0 K &uiErr); x! z* ?& G3 x$ n
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SysFreeString(topicStr);/ y% D4 }) o0 L, F2 Z# j
SysFreeString(itemStr);: p9 D- z* x& j: P# J5 X, V Q
请问该程序是获得extend里面的哪个值?$ _* n& L, R/ K8 K
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????