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: 8 p: A& g7 _7 M9 K( TName = (WCHAR *) L"Poke";1 t' D7 Y1 O& @- Z+ s0 P9 F
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hr = m_pDisp->GetIDsOfNames ( * O. G) d; [! E0 Y IID_NULL, // reserved8 t- p4 |# s& e7 m# y" R8 P
&Name, // Array of names to get IDs for * @7 K7 O; }0 e4 k& M 1, // # of names in the array( K- O, j' g' c' c0 z! v
LOCALE_SYSTEM_DEFAULT, // System locale 9 k) T6 p3 f# D7 T4 Z' H- j+ h6 B &pokeID); // Array of IDs to fill on output q' w$ d, W1 w. p
0 e4 q l1 ?6 r) g6 Q/ ] if (hr) 1 O! r9 R4 G; n3 r* p9 u {# V( Q, d N" p ], C" L' f! v
MessageBox ("Get Poke Unsuccessful");8 c; b1 P+ z6 {* O4 \( c, {' g0 I
return;- ^/ x, g! L: k" j
} 1 l |+ O l+ ] * R- k6 n3 L% q- x; P* Y6 }9 u" O/**************************传递数据给extend**************************************/: A1 s6 @ W0 x$ f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ M& T% w3 [5 t$ @. Z
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 j9 D9 S% N9 y- _- Z VariantInit(&pokeVariant[0]); $ z2 N4 u7 x% o$ @+ i
pokeVariant[0].vt = VT_BSTR;) F, U9 O" \9 N' Z+ B/ L4 X8 ]
pokeVariant[0].bstrVal = valueStr; 2 Z: Y8 a+ R; ]( o# k) N \* f% I9 N$ C. y) S" M" G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 ?2 o7 F- B2 z1 g VariantInit(&pokeVariant[1]); # H/ e" B" N% m/ f
pokeVariant[1].vt = VT_BSTR; - c9 R! j2 }' ^ pokeVariant[1].bstrVal = itemStr; , v9 ^6 L: E% K: f; k' L! M 6 U% L. F$ X; [* | topicStr = SysAllocString((WCHAR *) L"system"); ) c4 y$ J2 }. ~: X VariantInit(&pokeVariant[2]); 4 B8 v8 D* X# |$ C7 n* Y
pokeVariant[2].vt = VT_BSTR;! t: b# r; `5 r$ _2 l
pokeVariant[2].bstrVal = topicStr;# S, l' `& ^7 p. \
3 \- L O& ^3 K& u E// Set the DISPPARAMS structure that holds the variant. : h$ N% b. ~$ M2 P8 ~: \6 E8 _2 H3 S U9 }5 C
dp.rgvarg = pokeVariant; 1 I4 t$ I: Q+ T! X( J0 o dp.cArgs = 3; # W u1 L& Q I- ~; f dp.rgdispidNamedArgs = NULL; / }* V8 h6 U: y& R' _+ |1 u/ e dp.cNamedArgs = 0; 3 A: t8 q( X8 }* b; E2 a 8 T( w% ], K2 l// Call IDispatch::Invoke() 9 V& C P4 _* i% Y" q! X( X) s u3 z- A! W: }1 q
hr = m_pDisp->Invoke( 9 @% C" A( B/ c' L( ]: V; p pokeID, " i& I/ }/ n5 G, b IID_NULL, ; R3 _% T( J$ C1 @) X. K1 K LOCALE_SYSTEM_DEFAULT, 5 i8 q! N T( G( W0 S2 U4 l2 A DISPATCH_METHOD, % _9 i1 u- [/ t/ P2 e; |1 k &dp,8 i7 ]/ _) k8 K+ ]
NULL, 8 b! n! E: r* c* u, _ &ei,& T" E' m1 \; B3 Q
&uiErr); / f$ e x; V2 o3 ~, c( n: J- B! i# m6 _0 G7 ^' y1 l
SysFreeString(topicStr); 2 L/ j% C3 o& p' |0 S SysFreeString(itemStr); $ n9 N5 k8 l) ~6 C& c2 t2 f2 J SysFreeString(valueStr);# u$ q+ j- h$ [1 ]$ O7 o# y
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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??? - O6 `6 X3 i A7 i6 @% J3 Z* U( O$ g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???? 0 F/ A. }. S- c" I+ c- Q5 R$ {9 X1 h- N# f, J
2 A6 P3 X- N/ x% n( A3 R2.这是request的程序 5 ~8 C' K1 s5 k Q// Request a value from Extend+ H' m5 U5 r$ i G' X( s- s+ d0 @
// - ]: S- M) c/ I// Initialize the variant that will hold the BSTR. Set the variant's + s9 H" D% B8 M% j. r* u3 N2 V// type flag to indicate the fact that this variant holds a BSTR. Place the& ^; a6 X1 u& }0 t: I1 n. _
// BSTR into the variant structure. - Q) Z! U; ~+ I! T3 P0 C+ f7 x8 P8 I0 P$ f0 z
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) `4 j. ]( } A7 @5 U: Y
7 q- {2 | p; s$ [8 V: q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- R* `+ d* `5 S% {& p. Z+ j9 F, S1 H
VariantInit(&requestVariant[0]); 7 P' i! \6 O; i/ ^5 y$ E" x/ ~
requestVariant[0].vt = VT_BSTR;+ N2 y. Z1 I, q( d }
requestVariant[0].bstrVal = itemStr; , O+ r9 E; ~9 V7 t+ c# x! P; `7 [7 ~9 G
topicStr = SysAllocString((WCHAR *) L"system"); 1 V; c$ j! `. [. T+ Y VariantInit(&requestVariant[1]); - f, L4 Y9 Y! g+ d+ D requestVariant[1].vt = VT_BSTR;/ C6 G- w/ b' T1 c$ z
requestVariant[1].bstrVal = topicStr;" l8 r) s0 v7 r) K5 j& }
# u1 l v; H1 O2 E8 {// Set the DISPPARAMS structure that holds the variant. 3 q5 J, l. M) ~, Y# Q, Z5 ^# T7 Z
dp2.rgvarg = requestVariant;4 Z/ ^1 H$ N4 `# B
dp2.cArgs = 2; * _ L6 U0 V& D5 A6 s dp2.rgdispidNamedArgs = NULL; * V9 c$ R9 ^3 k dp2.cNamedArgs = 0; . Z# }- [9 {, H3 @( J. n! ?, s: {: F& ^" D
var.vt = VT_EMPTY;! @- F1 X! }: s! j( \
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// Call IDispatch::Invoke() V G U! G4 @2 l2 p; Z
/ K: b, w% K1 f& l3 b hr = m_pDisp->Invoke( 9 A0 E6 a+ K+ \/ n7 S! K requestID, 2 ~7 m$ L) b- D2 r7 p IID_NULL, & Y, [* ~6 s0 E8 M LOCALE_SYSTEM_DEFAULT,$ s8 s0 b) K2 H {8 L
DISPATCH_METHOD,3 [, s3 l& d6 G! G. d
&dp2,8 f; r) o2 x/ `9 i1 C) y8 X; d
&var,$ f- {1 @7 ]0 [5 g
&ei,! `' E- J( q) X# s. H% r" B
&uiErr);- k: Q# E: ~; z0 u* _/ ~* |
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SysFreeString(topicStr);4 s& d3 A# [% S8 Y
SysFreeString(itemStr); 6 T- ^3 k1 M" f0 \请问该程序是获得extend里面的哪个值? * ~% `' N. b+ b* c e8 N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????