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:3 s' k& T/ e1 _2 E; f" g) o" [
Name = (WCHAR *) L"Poke"; & u0 w6 k! S4 B) g& O( ]3 C. L P A% X# Y Y) w- g
hr = m_pDisp->GetIDsOfNames ( # }; J& N6 E' b2 Z# S9 N3 x IID_NULL, // reserved 3 \) J1 P4 k3 [: K+ b2 V &Name, // Array of names to get IDs for- h. ~( \! I+ \/ `0 m
1, // # of names in the array / \& b0 R; g! v* w; O0 K LOCALE_SYSTEM_DEFAULT, // System locale " l8 y! b+ O3 `2 G &pokeID); // Array of IDs to fill on output : m3 g& k4 K" z 5 v/ T/ z8 I! Z
if (hr) ( B" Z% P8 P% [' Y, a8 A3 i { , Y1 z4 V+ O# Y5 W MessageBox ("Get Poke Unsuccessful"); 2 F: J$ b. Q5 T$ W. } \, d return;. s) a' @% X1 B) p4 J
} / O4 }/ m. x. ~ T" G* a7 R 9 K* f# T/ \4 W! y- D" q# K- Z/**************************传递数据给extend**************************************/! D9 [4 ]9 P9 A( ?! X% J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 p" d# w( R- M4 v8 Y* F$ A' J# o 7 R- B/ Y! t( O$ s6 t5 T( ~/ ^% g. r valueStr = SysAllocString((WCHAR *) L"1232");3 S$ b8 I5 [- @/ R5 s6 T0 t* m& n6 E
VariantInit(&pokeVariant[0]); , o1 v" s2 f' n. U) g2 [0 l
pokeVariant[0].vt = VT_BSTR; : K& W9 u* K/ s0 @# `1 _" F3 y pokeVariant[0].bstrVal = valueStr;- v2 `; D: y( t: a- Y6 t4 B
2 ?8 s9 R; j* ^$ R( ~4 Q; o+ b7 W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / ]$ q1 M y; {8 k6 L/ d VariantInit(&pokeVariant[1]); : n% o% P& T2 O4 ]" P. ]0 F$ A$ y
pokeVariant[1].vt = VT_BSTR;+ O* a& u8 R! s- ^
pokeVariant[1].bstrVal = itemStr;* `6 ~3 Z3 |5 r; P/ O
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topicStr = SysAllocString((WCHAR *) L"system"); : u. C0 T: h) c, N& U! H VariantInit(&pokeVariant[2]); ! Z5 C$ {) F2 r, q% }
pokeVariant[2].vt = VT_BSTR; ; c; ]" B7 ?( B' t/ ^/ R" j pokeVariant[2].bstrVal = topicStr;* w2 @! c- P5 ~& F( |
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// Set the DISPPARAMS structure that holds the variant.% y- E1 k: S3 m0 m
- M! e/ |+ }8 c# g. j+ t5 \ dp.rgvarg = pokeVariant;* ?! c& a! ]& w
dp.cArgs = 3;, m6 a. J* `. X/ p
dp.rgdispidNamedArgs = NULL;4 A( Z' P, ?( Q; }
dp.cNamedArgs = 0;1 F0 D+ A8 I" x. D; w- W, k( x
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// Call IDispatch::Invoke()/ a" J7 y* d1 F# H# U# c
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hr = m_pDisp->Invoke(# S4 y+ m) _2 I+ o! S! v+ y
pokeID,& l6 s y* K; P+ Y
IID_NULL," X y$ k; j; q1 ?$ L1 ~8 E
LOCALE_SYSTEM_DEFAULT, ; N0 |4 P$ o! f& J DISPATCH_METHOD,/ J$ r. ?! T& X. _5 s% H4 Y" J
&dp, & H6 H- c8 ~; ]* u7 H NULL,/ h/ y9 @ N; H* n0 G/ l9 K
&ei,! P$ @' X h5 u) L& l/ ^( c, e
&uiErr); 9 ^% ]+ k. J! H* A . o9 W+ M: r9 s# ?9 ?- q+ W SysFreeString(topicStr);/ X/ m# _8 l, {- P
SysFreeString(itemStr);6 y; D* `, W$ {. P
SysFreeString(valueStr);, }, R" ]/ c* |2 E: L
: o# `! p3 L' g. N5 @7 M! R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??? ; x1 s# S% _* ?7 M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???? * I7 [9 A9 M* T# n, d 1 c0 ]/ k4 o9 {! R0 y6 [3 }) P( ^8 G# W/ c
2.这是request的程序! e. ]! z% k3 K+ i' h
// Request a value from Extend - q1 g# R u8 O' ~//# m4 P/ q/ M; T2 A& [9 s
// Initialize the variant that will hold the BSTR. Set the variant's' g1 b/ S" z; e. M9 I
// type flag to indicate the fact that this variant holds a BSTR. Place the ( m! @/ K, R2 R6 _// BSTR into the variant structure. / M) j5 @ P- v: h& `+ e2 v ( h ]2 h6 X7 U5 T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: o; T+ y, T4 c
' S# r% ?1 z! z) e) v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , Y6 x5 N0 w3 @0 m$ t VariantInit(&requestVariant[0]); 0 A* ]2 k2 r" \% P5 x2 b2 |# k, K
requestVariant[0].vt = VT_BSTR;" E: u! ?9 s! g7 `: W5 V# h3 N
requestVariant[0].bstrVal = itemStr;* s' n$ b `+ {/ f5 R: A4 w
: I, f) j% G5 ]0 `2 O
topicStr = SysAllocString((WCHAR *) L"system"); " L# i" s5 w/ ~" Z9 P* t" t2 p VariantInit(&requestVariant[1]); ! y! W# Q6 }$ E1 u# z; j( N
requestVariant[1].vt = VT_BSTR; + O! L# q! K7 [! t requestVariant[1].bstrVal = topicStr; $ J& z4 ~2 q0 G% T6 c( _' w! H! r: A$ r& _
// Set the DISPPARAMS structure that holds the variant. 4 A& E9 g L7 K2 W5 q, s: l# L- h3 t% u, p" }
dp2.rgvarg = requestVariant;* M+ D8 G0 o8 h, w
dp2.cArgs = 2;7 @; b" `9 d9 N6 J3 t
dp2.rgdispidNamedArgs = NULL; e1 U+ K3 y$ d. x0 P; ]2 \6 z
dp2.cNamedArgs = 0;6 `( T3 a4 a% {/ L
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var.vt = VT_EMPTY;# s0 t$ Z* c1 _! P
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// Call IDispatch::Invoke()& q; }; ^& k9 x7 p: _
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hr = m_pDisp->Invoke( " n5 w- ]' W$ u( h' F* I' @ requestID,- [. `- @+ A) Z6 B0 |$ H s; K5 L
IID_NULL,& L" Q- O# M9 G3 W1 t
LOCALE_SYSTEM_DEFAULT,0 }2 D2 X2 {# t' @" o+ [
DISPATCH_METHOD, $ m% P6 n; T( S9 @4 T# ] &dp2,3 w. N5 v2 d9 j L5 O/ R
&var,9 S) r( F# b, t1 O; H/ C
&ei,$ `$ P. Q. |0 ~
&uiErr); 4 |8 Z! f9 d1 y& [- o8 u1 z7 \
SysFreeString(topicStr);! ?3 U) _0 e8 M. R0 U8 H1 @
SysFreeString(itemStr);- W' H7 z9 _) `3 f
请问该程序是获得extend里面的哪个值? , v3 B+ H, W) V. \, h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????