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 f% V8 M$ c- D) j
Name = (WCHAR *) L"Poke"; $ b3 p3 H6 d- i6 f8 A* f: v" p ( v5 |& h% I' ~+ A! ]7 n/ N7 C hr = m_pDisp->GetIDsOfNames (6 e2 E$ g, T. h! Q% I! @9 n6 \
IID_NULL, // reserved" f# D3 n2 H* W! c1 A
&Name, // Array of names to get IDs for5 r! D1 X9 K# \! F
1, // # of names in the array & d- G% F* \: }9 u LOCALE_SYSTEM_DEFAULT, // System locale ! |/ W) {9 F$ {3 t, c5 i5 g &pokeID); // Array of IDs to fill on output' ^; o/ b0 L$ H. [2 ?
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if (hr) # |4 ~+ C8 E; H$ q7 \5 S { / s6 M* Q6 ]4 R, X( y MessageBox ("Get Poke Unsuccessful"); % ^ x& n0 X4 l3 A return;8 a/ t/ {1 m1 a
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/**************************传递数据给extend**************************************/+ h7 ?# }+ G- G' D Z' q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 ]4 J2 r. v7 _
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valueStr = SysAllocString((WCHAR *) L"1232"); / N( |: ^+ M' B VariantInit(&pokeVariant[0]); : ?; S+ n. O% h, u& m- \ pokeVariant[0].vt = VT_BSTR;4 [1 H& E7 P3 J& k7 C1 U0 F
pokeVariant[0].bstrVal = valueStr; 2 f# p0 X! P9 u0 E3 M( T . z8 c! y7 @% d' {' j+ I7 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ i. |' l! Y* j+ C' M% f4 b8 ] VariantInit(&pokeVariant[1]); 1 z- T9 |+ _9 u' m; l+ N, [
pokeVariant[1].vt = VT_BSTR;3 j( a3 e- ^/ g# ^7 n
pokeVariant[1].bstrVal = itemStr;% V3 _ [$ J2 ]8 U
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topicStr = SysAllocString((WCHAR *) L"system");( F) k+ s2 g) U: {, Q& X# Q
VariantInit(&pokeVariant[2]); 6 {% [9 l. F/ E1 p8 g, L
pokeVariant[2].vt = VT_BSTR; 0 W& K. C& o" \1 h pokeVariant[2].bstrVal = topicStr;& e0 u) E4 W9 V
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// Set the DISPPARAMS structure that holds the variant. 0 a, _9 s) f7 b5 e& F+ n % }& Y* Z$ ]" F2 m% F/ O dp.rgvarg = pokeVariant;' B) m L1 `* E5 D. r5 H4 o
dp.cArgs = 3; 3 `. t5 m8 }7 T' T% g' u; } dp.rgdispidNamedArgs = NULL;8 z* c& T" |& t' E1 U3 O
dp.cNamedArgs = 0;" z1 X0 Z+ ^ f7 d
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// Call IDispatch::Invoke()7 e( [* `6 P, h
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hr = m_pDisp->Invoke(( m. Z& H& ` U; G- e; c
pokeID,9 Z3 M/ H, ^+ x* y. e
IID_NULL, ! C: |0 N: Y- c6 [9 N: Y! ` LOCALE_SYSTEM_DEFAULT,7 ]1 a; h5 K) M9 ?
DISPATCH_METHOD,3 U. }8 [* h/ t" ^5 p$ v( I. D
&dp," ?6 S5 U4 X0 \" d
NULL, , y+ _3 U8 H7 ~# h &ei,9 C" N! D- k- M, Y1 K A9 j
&uiErr); # Z' [, y8 d, M3 H% N3 Z+ w; t, w
SysFreeString(topicStr);! d5 x1 X- \* } F' K
SysFreeString(itemStr); 4 ?* x9 A6 \! ~. N: M SysFreeString(valueStr); + o( n$ `. I$ v' s8 o) {% s0 }3 `1 l; b* `/ q. I. }
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???2 _! K8 d- ]$ Y% m% R
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???? ' V& [& S6 u2 p! U& M( W) N; p: h H$ N
/ ]3 O" c. T @3 H7 w, j& L) ~0 X2.这是request的程序3 H- {$ w+ n6 l: y
// Request a value from Extend$ t# W. M/ q U
//6 B) {1 V6 _: v! o7 H' u- b
// Initialize the variant that will hold the BSTR. Set the variant's . Y! M: A7 t; b// type flag to indicate the fact that this variant holds a BSTR. Place the 6 e$ n- E C, u$ t+ R4 ?1 T( l// BSTR into the variant structure. 6 ~" B' [% H- Q: |8 M: f: J9 e/ |: X( M& I$ W. d O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& y4 f* @4 Q. B) o6 R" w1 S* T
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 e3 A! d) g1 W3 t& \7 ?! K VariantInit(&requestVariant[0]); ' p: I% Y* Q' R7 R0 ]7 i: V requestVariant[0].vt = VT_BSTR;3 W6 _ |! |) g9 c" ^7 g
requestVariant[0].bstrVal = itemStr;- q) S" Q$ L2 M
% t3 p$ c9 _! F" ^! s7 r topicStr = SysAllocString((WCHAR *) L"system");$ ]' J3 v" c) k8 I
VariantInit(&requestVariant[1]); 4 H5 {$ @$ a- ~. `5 q
requestVariant[1].vt = VT_BSTR; / F( _$ F1 l7 t9 F" ]. [( n, Y requestVariant[1].bstrVal = topicStr; : T* L7 [8 r7 \ 5 }+ L$ U6 ]7 m: {+ A// Set the DISPPARAMS structure that holds the variant., p; ]1 l8 [3 H( O
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dp2.rgvarg = requestVariant; % f$ @. f) m0 Z2 ^' T( S dp2.cArgs = 2; + d# w) l. f3 G' r5 s# n dp2.rgdispidNamedArgs = NULL; 2 N/ x, G; i" s9 r* K dp2.cNamedArgs = 0;% T+ u" _$ T& r3 n. R1 Q6 V
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var.vt = VT_EMPTY; & ^# Q3 i: q6 i; b6 `+ p8 `# J% y , y% g5 M3 H7 i$ ~// Call IDispatch::Invoke() % \3 J% [& T; b' I7 p & V2 m. A# X; ]; u hr = m_pDisp->Invoke( 4 Z, j" }% M/ K V requestID, + E5 b2 M/ m2 m I+ ^- O9 [ IID_NULL, + o5 o f" t/ t2 z1 l" { LOCALE_SYSTEM_DEFAULT,3 j( M) m, {2 N; Y, y
DISPATCH_METHOD,$ h4 B0 |$ Q$ c3 M9 i
&dp2,9 D) a- n6 y, o6 ?2 {, Z& R! x
&var, ' y% G8 H* W( Z/ N+ v' l &ei, & P5 @0 ]4 f, d! }. S3 R1 ~ &uiErr);5 u G" K& S, L) t( U
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SysFreeString(topicStr);* h( B6 h }7 h1 t2 F) D8 {
SysFreeString(itemStr);$ |+ D, ~3 ?& W: {
请问该程序是获得extend里面的哪个值?1 t- j# G v- G7 w l
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????