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:5 E* N0 P' A) }" G$ V) {0 j( H
Name = (WCHAR *) L"Poke";7 H/ T# M. B7 e& O4 @
7 s. G# [9 u( k) \! E hr = m_pDisp->GetIDsOfNames ( - b: r6 T) G% \3 [) k, D5 J- j IID_NULL, // reserved* Q- I" {- x6 q# U
&Name, // Array of names to get IDs for5 y1 |3 H$ ~3 E( `5 Z
1, // # of names in the array" ?0 v, G# I; k$ J& b
LOCALE_SYSTEM_DEFAULT, // System locale* Q( x* ]; u5 x) Y7 j! @9 C" M
&pokeID); // Array of IDs to fill on output % x7 C z3 w) [! k0 C# n# d! h % O8 ~, J& c; Y1 ? if (hr)( v, q8 B0 q. t
{ ' c$ X8 T; e2 @! o MessageBox ("Get Poke Unsuccessful");5 E5 N7 N- l1 a1 Y
return; - p5 r) @/ \0 J9 t( H8 t6 ^ }& t4 m. _: P' L
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/**************************传递数据给extend**************************************/ ' E7 P' C. F7 P% X" Y9 V) \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 O1 z& k* C9 z1 P; x x$ ^( Q 4 ?3 u S, s; w& s4 i% t# } valueStr = SysAllocString((WCHAR *) L"1232"); 8 Z6 D$ d1 o: r8 g. r3 N VariantInit(&pokeVariant[0]); ) d2 D: V2 W7 F v3 b( ^& j1 `2 P, D pokeVariant[0].vt = VT_BSTR;( X6 V7 Z1 e6 y( d9 I$ d6 I
pokeVariant[0].bstrVal = valueStr; : i6 ~: w/ U3 H/ F ; g$ p6 N+ o& ?0 }) a5 T/ @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 Q5 P* k. \* ]: c
VariantInit(&pokeVariant[1]); ( e0 I5 Q8 f9 n+ \ h' n
pokeVariant[1].vt = VT_BSTR; 6 a# B$ J+ D9 Z* E6 t4 u- q pokeVariant[1].bstrVal = itemStr;- S0 c/ e' a& `# c# T
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topicStr = SysAllocString((WCHAR *) L"system"); 1 l z/ N* T( ~/ e& U' K; Y VariantInit(&pokeVariant[2]); ' |# Y' D" h9 W7 R% _1 s; h; Q pokeVariant[2].vt = VT_BSTR; ' `5 [4 f `- f. h6 z pokeVariant[2].bstrVal = topicStr; I. b0 M3 y& {* N6 ^( o- h* B4 P% p
// Set the DISPPARAMS structure that holds the variant.9 P& N1 p! r* y% @3 p) a; u! p5 D- m
+ \; _" u# p' |% _' j
dp.rgvarg = pokeVariant;. H5 N5 u& S6 N
dp.cArgs = 3;! e& Z1 [( `6 E; p8 Y& A7 k
dp.rgdispidNamedArgs = NULL; 4 f6 U6 J) S6 ?2 e/ K dp.cNamedArgs = 0;; h% T% y* ^+ p9 T, G
1 [) K8 ^) H; n* H. t// Call IDispatch::Invoke() . h J1 I3 I+ c9 X* k ( u3 s5 E* P/ D v1 ~" d9 p hr = m_pDisp->Invoke( ' ]( w; I0 ]0 f% U! v0 c pokeID, " T) t2 l( g6 K5 M IID_NULL, 3 B( {' w$ h* f" K LOCALE_SYSTEM_DEFAULT,1 l7 z) X( _. d; F) ^, _
DISPATCH_METHOD,: H- u3 d7 V% H# z1 F1 }
&dp, 8 G/ x6 r2 k, {. p" r" l NULL, 4 {, g- `0 R1 p. ] &ei,+ O2 i" q8 R t: w \' a& a, ~5 \
&uiErr); ( G. i" b" {# r& F C, N6 @4 ~4 l7 Y% P7 U a, U! d
SysFreeString(topicStr); 2 N+ G& M- t+ f9 j2 X1 f! P4 m SysFreeString(itemStr); * o, C4 X# {$ | SysFreeString(valueStr); ' e( G& e$ ~" ]1 F E1 o5 ]0 h3 a A+ p
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???4 j! ^: y" Q6 g3 ~: E
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???? 8 }; z$ G; m8 @, i$ V7 r* m $ u* J) T& |* v$ Z. b ! G3 e5 S8 s" M2.这是request的程序. X. r6 I; {9 b: \4 K: s
// Request a value from Extend $ J# t2 l( t# y7 n2 a4 c. I// 4 `7 e8 {. P1 J9 L/ V1 y8 B// Initialize the variant that will hold the BSTR. Set the variant's & J( A# `0 }8 ]: h9 N. @: N// type flag to indicate the fact that this variant holds a BSTR. Place the ! u% _, {: w( ?( I6 h8 K// BSTR into the variant structure. 0 J a: e) M" Z. n1 {% E( F" ]) v4 K
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; ~- V) N% m' E% [4 j" t 8 D1 q6 _; t& I4 K B
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 F0 j* {/ _0 U VariantInit(&requestVariant[0]); / s) \9 I! w2 U requestVariant[0].vt = VT_BSTR; % j- s5 A& ~, ~: | F% `- S' A" J requestVariant[0].bstrVal = itemStr; 8 o3 h: j; V; _8 M) r/ v ) Z6 ^* G/ ~- K7 S9 U8 { topicStr = SysAllocString((WCHAR *) L"system"); 2 Z! n; F' i" {1 m2 r VariantInit(&requestVariant[1]); ; S0 }6 P7 L& u2 O
requestVariant[1].vt = VT_BSTR;6 b2 h# P+ M7 v5 p9 e; J0 p. x
requestVariant[1].bstrVal = topicStr; , [- ?% [ w; u o+ r/ o5 D7 H1 x8 }
// Set the DISPPARAMS structure that holds the variant. 2 [8 {+ r5 T' p4 U V8 z8 W' b) n6 @0 S: `+ b% t
dp2.rgvarg = requestVariant;3 S& b) {5 L U+ m, |% j, o
dp2.cArgs = 2; ) V2 ^ M m0 Z: a ?6 r9 T. A6 T dp2.rgdispidNamedArgs = NULL; . L* ^* P6 _1 r7 d' z dp2.cNamedArgs = 0;* X9 I) {6 G$ J( `- l; c
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var.vt = VT_EMPTY; ; I- {( W5 G6 u0 F% j, D8 d9 E8 o+ d& m
// Call IDispatch::Invoke()( [; k2 O3 S2 m S e
* r4 m8 H' ]: [6 X9 w hr = m_pDisp->Invoke(% R0 U0 @2 Y( P5 R( {/ J. @
requestID,1 i. T v% B m
IID_NULL,( S8 K( C7 _6 F$ |! Y
LOCALE_SYSTEM_DEFAULT, 8 J7 O7 p4 b# n DISPATCH_METHOD, 6 r: [$ e% x8 d- { i5 B &dp2,, M) J9 N7 h8 @: ~$ a
&var,* N3 _; \! |+ i2 t) o8 E, N
&ei,' \( p7 m8 R& H5 O+ W+ {
&uiErr);4 w- W1 H. s2 U( @, ~
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SysFreeString(topicStr);1 W3 l" z* O: x
SysFreeString(itemStr); ( U- K1 G2 y, B/ K- r5 x% x& F请问该程序是获得extend里面的哪个值?3 d" E& u: t! 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????