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:% K8 _/ I& n" S/ G% g
Name = (WCHAR *) L"Poke"; , U( J+ W- g* M" k# R; W 1 ?6 ]$ S e$ D2 ^& l0 b" U
hr = m_pDisp->GetIDsOfNames ( 0 y0 o7 T) k3 B* a IID_NULL, // reserved 8 d% T7 E& n4 D5 a4 m) i5 c &Name, // Array of names to get IDs for " q# Q$ i, R5 D t$ o( f 1, // # of names in the array! D1 k1 A: |) z3 { `# S" x
LOCALE_SYSTEM_DEFAULT, // System locale 0 b8 O, f+ s V ~( S &pokeID); // Array of IDs to fill on output 1 `' T6 {+ r8 e5 _ % N! @; b$ t/ J5 [ if (hr) / f5 z6 f* |7 ^) H9 j; x {2 Q+ Z8 f9 s9 R# x5 u
MessageBox ("Get Poke Unsuccessful");' s7 J5 G' {4 ]
return;, k# v" s& L: H. h
} * i* f' b0 F' j. y5 m 3 Q5 P' o3 h u1 H. ~/**************************传递数据给extend**************************************/' G" k$ ~0 I' J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ d: t; V* Q' g* c& c7 k
2 A1 P, i+ C6 a' F H# ~ valueStr = SysAllocString((WCHAR *) L"1232"); 5 e E0 L, X$ i, f* p1 L+ p VariantInit(&pokeVariant[0]); Q7 {) s6 A3 Z8 H% K" T' M2 m. W7 B pokeVariant[0].vt = VT_BSTR; ( }* G% u% D4 C3 M pokeVariant[0].bstrVal = valueStr; 6 a g, n* A. t7 ~8 Z: [! v: N. Q* k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * F( i9 w" a/ l, l0 M% N5 j VariantInit(&pokeVariant[1]); , Z/ x( e0 o% v/ A
pokeVariant[1].vt = VT_BSTR; 1 n! f) v) N' {; l+ [) ?% f' x6 Q- w pokeVariant[1].bstrVal = itemStr; 3 v1 A6 L2 I* q# D. K& O( O . n: P# g4 ?8 r' N' \+ D topicStr = SysAllocString((WCHAR *) L"system"); " I/ e# B/ w* N VariantInit(&pokeVariant[2]); : c! ~0 ?1 j* f( X pokeVariant[2].vt = VT_BSTR;6 j& E. Y7 h1 x2 |- ~" U( T
pokeVariant[2].bstrVal = topicStr;8 a& k% v2 [. D; ~! s2 A
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// Set the DISPPARAMS structure that holds the variant.( w ?. C; E, h6 ?, J$ p7 }
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dp.rgvarg = pokeVariant; : W# V% D- V/ |. O7 o* { dp.cArgs = 3;8 {& ^" |' \5 u! D. ?8 M, F- d
dp.rgdispidNamedArgs = NULL; & Z$ p- t, H& i' f# Z7 S! F/ D dp.cNamedArgs = 0; + `8 c. _5 c; \& q$ ?9 s: d3 l- {' v( ]. Y" n* b, }( b
// Call IDispatch::Invoke() 0 }$ m. \/ J% J3 } ( K( U$ m, q6 V1 A" z- m$ T- D: n( p hr = m_pDisp->Invoke(! Y$ Y/ h- ~: y$ w
pokeID, + L9 a: z$ [9 U2 \/ {) B IID_NULL,- f) Z# T0 }: f7 _
LOCALE_SYSTEM_DEFAULT,8 k5 W+ J( U7 M
DISPATCH_METHOD,$ S5 l$ d7 f1 { w9 p% H1 O
&dp, - o4 z( o" O# T NULL, * f* U$ u, [% `' v; m5 p' e# N &ei, ! N2 ]. \% M, f' k' e3 b &uiErr);# l6 m* g h- u3 Z
- I0 ^1 D$ r/ M0 b6 d( B M SysFreeString(topicStr);/ H0 ^0 k: I) g( ~& A! n
SysFreeString(itemStr); 3 {/ H# Z0 B) i m) m4 B SysFreeString(valueStr);) @! B: x" j) {! ^1 g
: `# h! r2 f/ ~* ~& u* 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??? 9 z5 q$ B5 K( i7 S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????7 C4 E7 e+ W* y+ C0 J4 @- C) e
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3 U8 c: E) m8 a9 Q! C$ s2.这是request的程序 6 j- S0 z5 E6 E4 I// Request a value from Extend ! k$ c ?, e# u& M//, Q3 U: _. P* j7 y7 E2 }
// Initialize the variant that will hold the BSTR. Set the variant's3 `; J3 O( C9 p# ~* _# D1 T3 r8 o
// type flag to indicate the fact that this variant holds a BSTR. Place the5 u% z. R3 k# Z# s: X6 D$ Q9 r e
// BSTR into the variant structure.* a3 S0 Q# P( I
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 a/ Q b3 ~& z3 H# A# @' p
$ y; A' ] u/ f4 U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; E5 E4 N1 o& q5 b9 } ?
VariantInit(&requestVariant[0]); 9 g/ {; w6 F% X0 Z2 Z$ P requestVariant[0].vt = VT_BSTR;8 _6 C7 B* O6 \* a+ O" [
requestVariant[0].bstrVal = itemStr;; p! r" ^3 A7 A& U; I% E( H! Y3 T9 N
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topicStr = SysAllocString((WCHAR *) L"system"); : Q# s4 @* k4 c* _( \ VariantInit(&requestVariant[1]); " B$ L' @2 \ J$ k! B( d/ H- f requestVariant[1].vt = VT_BSTR; # y7 s. p1 V9 k, I requestVariant[1].bstrVal = topicStr; 4 w# ~; V4 E' s- _ $ @# x* v" d8 m// Set the DISPPARAMS structure that holds the variant.$ z2 r; d- {' k Z0 ~' y& ~% s
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dp2.rgvarg = requestVariant; 6 u4 `+ m# ?0 m0 H dp2.cArgs = 2;3 L6 m- u e% X5 o% s9 N
dp2.rgdispidNamedArgs = NULL; # S7 o; \: w! b# w% ` dp2.cNamedArgs = 0;% M( n \. p. f) l9 m
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var.vt = VT_EMPTY;$ Q. M0 H6 k2 B& Y' J
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// Call IDispatch::Invoke()# l o9 h7 q6 V! U2 E# |! _ N( l
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hr = m_pDisp->Invoke(' ?, k) O/ U! x9 t W7 I3 T! n, d
requestID, ) M& ], _* ?) k: ^) G IID_NULL, G+ b `! v7 A* j5 Y ~- W LOCALE_SYSTEM_DEFAULT,! u, U% W; h4 y; G5 E/ F' ^" g
DISPATCH_METHOD, % B) }: N% U9 g9 `$ y &dp2, + @$ k# S# w& ^9 F+ p &var,7 x2 Z) a$ i" d$ ^- q' a, R) @. j/ [
&ei,. W. u( M' D/ y. r& U Q: K ^
&uiErr); 2 H% a% \ H9 S3 c& } ! B# w4 c- ?, ` SysFreeString(topicStr); 3 V, y/ g& q8 ~7 L( `- f% R* X SysFreeString(itemStr); ' r- q8 m0 K V* \& n5 Q请问该程序是获得extend里面的哪个值? 3 u1 t3 u0 v: @( S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????