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:9 |3 [( U8 m, V5 Y8 B% J% ?
Name = (WCHAR *) L"Poke";# b# K3 r M7 g8 Q' [
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hr = m_pDisp->GetIDsOfNames ($ B j, {6 G" o) Z6 f6 d+ Q9 [% J5 @
IID_NULL, // reserved 4 Q( N6 ?' @# _7 d* p &Name, // Array of names to get IDs for. b7 D) I# X0 a" u( b
1, // # of names in the array& w ?8 T# u: O9 R
LOCALE_SYSTEM_DEFAULT, // System locale 4 e; I3 z8 i0 [) w0 o &pokeID); // Array of IDs to fill on output ' l: |6 F' U1 f D# V: s , O. a# @( {, D I1 D if (hr)9 [/ \8 W& P" n- N5 T; J2 \5 `/ K3 ^
{ : [, s) O7 R9 x% k' q MessageBox ("Get Poke Unsuccessful"); " i/ n0 f6 z; |* a- K/ g, @* `; A return; 9 w: W8 u- |% f8 v f } % l; R$ I3 I) D2 X; l2 R9 Y* G) o9 _+ Z9 }# j- N0 {3 [- l) }1 v
/**************************传递数据给extend**************************************/ 4 Q8 v2 P$ i ?# o pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , p$ U( i, L) F$ Y 9 u2 @# b5 T( H7 Y
valueStr = SysAllocString((WCHAR *) L"1232"); 3 m0 [0 }7 U% `4 e* E VariantInit(&pokeVariant[0]); ! u3 ^" y0 }: J5 k7 f0 ^ pokeVariant[0].vt = VT_BSTR; 6 o5 @+ H. ~# x7 d7 r7 \( y1 @ pokeVariant[0].bstrVal = valueStr;% ~2 Q1 o. | m" f
8 {4 R. M: R! x9 O/ n- ]! | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( I1 z6 E' p) b1 @' O$ l
VariantInit(&pokeVariant[1]); / P3 X S. [# ]( t4 z8 d% I
pokeVariant[1].vt = VT_BSTR; 7 }. p, w. n6 l% n pokeVariant[1].bstrVal = itemStr;& x" ?. ?) y" k9 {4 v* _$ n
: J4 h6 i$ y* B5 O3 J, X. ^9 S/ C topicStr = SysAllocString((WCHAR *) L"system");6 b8 t4 v8 t7 Q# z4 H# l: ^
VariantInit(&pokeVariant[2]); " B3 e& `; X- A+ p# a. s4 M2 Y* d/ @
pokeVariant[2].vt = VT_BSTR;& c$ h+ t2 ^% Y' u! `& Y1 f; K' C
pokeVariant[2].bstrVal = topicStr; 5 C) n5 l" ]" n& c& s # ^; k2 L! [$ J: Q// Set the DISPPARAMS structure that holds the variant. ! }7 O8 W+ g1 n5 | & w" t3 m- U0 U8 k% a dp.rgvarg = pokeVariant; 8 E( ?4 L3 b$ H# J2 S dp.cArgs = 3; % n" r4 p% |2 v7 C+ [ dp.rgdispidNamedArgs = NULL;% d$ K( {- Y" h, ?" `
dp.cNamedArgs = 0;( o5 @! f, s1 w* c
9 @: x. ^4 d- l: K/ }8 |// Call IDispatch::Invoke() ' ?6 ^2 X) ^4 x; o/ z! j4 B' ]9 J. E2 z8 {: S5 a
hr = m_pDisp->Invoke( 5 ?" p% k; v2 r4 l6 B+ @ pokeID,0 I! i- J, ^# \# [
IID_NULL,+ |/ P2 n1 l, `8 G. f1 c. F
LOCALE_SYSTEM_DEFAULT, ' d- l0 \' M; Z' r, j DISPATCH_METHOD,: V* c/ c1 d/ N! j$ K9 d' ~
&dp, ! }. i3 Y* a* W0 G NULL, ; P5 E- a9 @$ G$ I; C &ei,, z& P [+ X a& L {: l' s
&uiErr);! ^0 H: U+ s5 p5 \' S a
% I2 T b( Q) I2 a6 z7 M SysFreeString(topicStr); 3 o+ I3 G2 Q: T$ ?0 r5 G6 x# P SysFreeString(itemStr); n8 F, q. y- }0 N SysFreeString(valueStr);7 }9 k) i; A( N4 m0 w: I
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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???+ b( R# N" w a: _) H
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????; ~% Y2 k0 h& d3 z' Y6 R
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4 C& g1 [0 d) V, s/ m2.这是request的程序" [/ D0 E9 V$ V, o. x, C- b) X
// Request a value from Extend ' ?# V1 w5 B) M, Z9 i% s! ?: F// : k9 g% a/ ~2 d( ^7 ]2 J// Initialize the variant that will hold the BSTR. Set the variant's+ i' l4 \8 B4 N# @' p( `# C
// type flag to indicate the fact that this variant holds a BSTR. Place the# j4 H! `/ @3 G5 q( I" I. y
// BSTR into the variant structure. ; s8 w7 D+ Z+ f9 _6 e' u & b( S D! C1 n) a7 v: l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; F- ^' C$ c) {8 _: T* C ' @9 z( ?' \4 Q8 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 R% D6 P* d5 f
VariantInit(&requestVariant[0]); * T; `, j4 j+ ^3 b6 C2 v! s requestVariant[0].vt = VT_BSTR; : F+ y8 }! V) N8 e# s requestVariant[0].bstrVal = itemStr;' ?2 P, V7 G' ]
+ u# S1 O% C- J% T) u1 } topicStr = SysAllocString((WCHAR *) L"system");! q7 w7 g, w; Q2 M7 K7 U L6 h
VariantInit(&requestVariant[1]); + T6 B& y1 T+ X$ D( m
requestVariant[1].vt = VT_BSTR; " j# `+ B' Z3 I2 ` requestVariant[1].bstrVal = topicStr; * I0 C* d2 p E2 l! I% ~& I8 b+ ]& q+ t6 L- G$ u: ^9 m7 o- D
// Set the DISPPARAMS structure that holds the variant. / X9 ^) x- `9 h! ] 8 i3 I+ [( h* C# T5 Q, d" C, M dp2.rgvarg = requestVariant; / }- k8 g* m3 L" j dp2.cArgs = 2;/ v9 h- I& z2 s( ?: l
dp2.rgdispidNamedArgs = NULL;$ n! X8 R# v! ` X/ P/ z
dp2.cNamedArgs = 0;4 p* _ W& t" x
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var.vt = VT_EMPTY;. v2 y/ a% v+ y+ m" S- r# H# t
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// Call IDispatch::Invoke(): C7 }/ \) g1 Y( ]+ J$ J
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hr = m_pDisp->Invoke(7 X% F, G* R& D& N* u1 m
requestID,. `0 z" E3 K8 _: ?% ^7 R3 H5 Z
IID_NULL,! ^0 B6 V& ^& ?
LOCALE_SYSTEM_DEFAULT,$ q0 U5 B4 v) `
DISPATCH_METHOD,% L1 Y+ u$ o/ Z. _& a0 L
&dp2, # c1 W' h% E$ [0 J: e5 b5 J' R6 n5 p &var, * }- L8 A% ^) A9 s4 L &ei, 6 _1 U7 _- f8 t. f &uiErr);# ^/ F' m6 C+ S# A* f0 n8 y
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SysFreeString(topicStr); : @9 G$ S* n6 {6 { SysFreeString(itemStr); 1 E4 P) `& J4 ^请问该程序是获得extend里面的哪个值?# t. r. s" J1 K$ u; s9 O; C/ j }. 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????