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:0 R) B1 i+ _0 h- s
Name = (WCHAR *) L"Poke";: c& f& R1 p1 T+ x2 W
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hr = m_pDisp->GetIDsOfNames ( . m W" F* v; g6 q2 I9 D+ X9 I IID_NULL, // reserved5 ?/ \ a0 @# p5 `1 ?
&Name, // Array of names to get IDs for % s+ ?: R: m- z9 b+ {+ `; J0 u+ E 1, // # of names in the array % v7 a: O1 {$ l LOCALE_SYSTEM_DEFAULT, // System locale / x( ?0 a4 ^# \. i. Z ?4 E &pokeID); // Array of IDs to fill on output, n0 o' a ?; _, u. W$ ?# X
0 x9 ^* i E* \8 v/ W y" [8 D if (hr) - F# d0 Z; @4 Y* A5 Q- q { ! l* l% L0 y+ b. P T. p7 _7 \( j) o MessageBox ("Get Poke Unsuccessful"); : W+ Q' z( P% z# [& L+ r$ ] return; i- E0 @9 q' n, N4 L } . u3 ?4 R# q' _0 n0 U1 ^5 C( f" L# @/ j+ Q/ t0 F( v% h" x
/**************************传递数据给extend**************************************/ F0 d2 f& |- g4 r: l" Z) h pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 Y$ t" \0 o0 k/ V0 V * |, B/ e }% L# b! E
valueStr = SysAllocString((WCHAR *) L"1232");! D% p6 v9 M7 q1 `; S
VariantInit(&pokeVariant[0]); + ~# B% A) [) g8 J: z pokeVariant[0].vt = VT_BSTR; J4 X7 S4 f$ q9 @+ Z0 a, v pokeVariant[0].bstrVal = valueStr; % n5 F- j6 ~; T4 U" o/ t- r$ m M: H3 B* V7 [3 b, d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( Z0 y, U& ~) z5 ^* i: o( A9 x6 b
VariantInit(&pokeVariant[1]); & K3 M( A% F5 K* q" c; m
pokeVariant[1].vt = VT_BSTR; 7 j- G3 a) ]% {4 h$ g# f; o pokeVariant[1].bstrVal = itemStr;, w2 M# R# W$ d/ f, A M
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topicStr = SysAllocString((WCHAR *) L"system"); : N9 c& \* x6 C9 S VariantInit(&pokeVariant[2]); + E: V5 U9 O$ P. G4 _
pokeVariant[2].vt = VT_BSTR; ! q8 x$ t2 e: _0 b+ \ pokeVariant[2].bstrVal = topicStr;" U+ `, P# L2 t! @( q
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// Set the DISPPARAMS structure that holds the variant. 5 ~( \/ [6 c) ` 3 B1 |* |* h. m/ R dp.rgvarg = pokeVariant; 0 z1 \- C" Q% q5 Z% ` dp.cArgs = 3; " E& j( ~. s- w% ~' i dp.rgdispidNamedArgs = NULL; 3 _ P7 R' Q* \3 K dp.cNamedArgs = 0;( c; _8 ^5 Y* y l
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// Call IDispatch::Invoke() ) u- y) ^0 N9 f2 j6 B( m9 e % d/ ~0 ^: M8 R8 n3 Q3 Y; \& R hr = m_pDisp->Invoke() \- l+ A+ T) Y+ h- J) \
pokeID, " u$ g; _5 Q7 p) `8 ` IID_NULL, 5 p/ x c" z/ D) N4 ` LOCALE_SYSTEM_DEFAULT," u, V; ] W J
DISPATCH_METHOD,/ [8 a* `; V) }
&dp,: k3 q* A0 b9 k6 C! A
NULL,+ w( x& o4 o/ U7 g! Z( Q& C
&ei, : g9 u+ d( d b- I& {( B- T &uiErr); ! D' ^3 [; P" z; D" _+ F1 K , L& C; a6 T6 T7 g m SysFreeString(topicStr);' D1 N) L' V, ^8 c1 \
SysFreeString(itemStr);) [$ O: n% S! c! i" m" ^
SysFreeString(valueStr); 6 U& {: O7 ~ Y' k: _% o5 F$ l $ R Y {/ o8 L6 W5 _* B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???- u4 P# J D+ q6 h) U* ` ?
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????& D' ~" h- `! G2 m8 }/ P# O% S
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# i) I( ?7 h1 }4 S" ^2.这是request的程序 , ]: e5 r0 }. S' H+ k; q3 K$ x1 {, Z d// Request a value from Extend 5 { \3 c4 \8 z' x$ n: i; S6 n// 7 B+ G3 K/ [8 I8 r; P9 w. ~6 f// Initialize the variant that will hold the BSTR. Set the variant's% t5 X/ |! O$ ~$ E
// type flag to indicate the fact that this variant holds a BSTR. Place the& _& x2 U1 v& X: ~1 o
// BSTR into the variant structure. B2 B+ T6 ~( _ `
$ G% J8 A$ Y& L/ ?+ y! R; f! b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # u2 d" _' Q, g' z( { 7 k- [0 v6 U$ B9 O- a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 P1 C8 Z* @% R) \6 N VariantInit(&requestVariant[0]); b" `9 d m% ^
requestVariant[0].vt = VT_BSTR; . C: @- M$ Y6 ?- F# K K requestVariant[0].bstrVal = itemStr; # z6 Y3 x. O- u* z) Z# f0 a; \; _, h
topicStr = SysAllocString((WCHAR *) L"system");* H* B* i# S. f4 Y- k# r7 u
VariantInit(&requestVariant[1]); 8 i. a9 B3 X; [5 y3 F" ^
requestVariant[1].vt = VT_BSTR; % C7 z9 b0 f# J7 S, j! B& T: O$ e requestVariant[1].bstrVal = topicStr; ; {+ D4 Y) {' M8 e( O$ N( u" B5 f8 i" T( _+ h6 E
// Set the DISPPARAMS structure that holds the variant. 0 m- y1 v7 b. L6 ~ 9 Q- I8 Q. E+ r dp2.rgvarg = requestVariant;9 |6 i! j) ^$ m& Z- v2 Y. G1 }
dp2.cArgs = 2;$ n2 h% D3 E5 t8 E# g6 W' |3 t
dp2.rgdispidNamedArgs = NULL;. W/ G9 ]" {; e- w# Y) F& A2 X
dp2.cNamedArgs = 0; F9 B7 F \5 V- R0 N' c ! t% p9 \4 f: n0 A" P0 j8 I1 G var.vt = VT_EMPTY; , e t& ?4 u$ f6 |4 l% k2 d) ] - \! q$ V& O% ~// Call IDispatch::Invoke()& G3 h# V! O; S6 |# j# R6 i
$ H! p, Y# c( f& ~ hr = m_pDisp->Invoke(+ R% Z; k1 b; i4 y! i6 y. O& ?7 B7 l
requestID,1 h/ @" m/ V. s b2 l. Q
IID_NULL, * S' R, h! M; J3 o/ @" B! g LOCALE_SYSTEM_DEFAULT, - N: w6 d5 v7 y4 ~4 E+ x DISPATCH_METHOD, O" r" A# J" i: ~$ D
&dp2, 2 B. I [; X+ U" J &var,% s! S2 L2 k0 A/ z9 v* w! J
&ei, 0 z% ? `# v+ p% H &uiErr);' M R& r" i: F5 Z! v5 e% K( S3 R
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SysFreeString(topicStr);* k/ P0 ^0 k4 \8 P
SysFreeString(itemStr);8 h1 |! |! G- V5 A$ N
请问该程序是获得extend里面的哪个值? ) O8 {4 ?% n( P$ l! Q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????