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:. ^" q: _ z- H+ z" p/ X" Z _+ f
Name = (WCHAR *) L"Poke";2 g( ?# V- N/ l6 H
2 y- X; L7 h2 h& _; z hr = m_pDisp->GetIDsOfNames ( ; w& |. U6 g) g- P+ E4 r1 \# [& o7 y2 r IID_NULL, // reserved 3 _" d3 l$ R- m7 J &Name, // Array of names to get IDs for 8 ^. {1 H/ J5 v N( [ 1, // # of names in the array 8 Q6 Y6 s6 t1 K0 C5 S7 u LOCALE_SYSTEM_DEFAULT, // System locale * }( Z; i) |$ Y% a# A( t &pokeID); // Array of IDs to fill on output 0 T3 L5 S* d! c, D 6 ^, _! {( S5 u! E: p( w8 H# U
if (hr)! n0 r0 _! f9 b# j$ ^$ U
{ ) u) z b9 J3 b" X1 B MessageBox ("Get Poke Unsuccessful"); ! n8 Y; F0 \5 m, u9 t/ M return; v, o: i8 i M+ D! f3 b2 @ }; M9 j+ @: s0 J C6 N( M- h
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/**************************传递数据给extend**************************************/) M) q& Y" Y' Z+ _3 t _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' }1 R9 S/ R. x q & w: w2 [: ^8 x2 Q" b+ b valueStr = SysAllocString((WCHAR *) L"1232");6 ]" E0 O R% l3 c& i
VariantInit(&pokeVariant[0]); ' t6 v. G+ R( H. `. j
pokeVariant[0].vt = VT_BSTR; & z# ` ~; [ u( @9 g! x& F pokeVariant[0].bstrVal = valueStr; # C6 b. C, L6 z6 {2 w& ^0 m0 U& H% ]" ?/ N- ?) Z+ {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& Y$ Q) c3 K! {+ c. U! _
VariantInit(&pokeVariant[1]); 3 R- ~, s7 y( \$ _; }! b pokeVariant[1].vt = VT_BSTR; 2 X7 v. \! A+ q9 Y4 B, k( M" W pokeVariant[1].bstrVal = itemStr;6 S% [* d8 U! o
9 X0 k7 C$ c/ W: o% J4 K topicStr = SysAllocString((WCHAR *) L"system");2 ~. F& f, T# o
VariantInit(&pokeVariant[2]); * _! q: E2 H; V. L- c! x pokeVariant[2].vt = VT_BSTR; . b; @$ \* J4 U$ Y pokeVariant[2].bstrVal = topicStr; * L' D) y9 [. L9 P: X! u. L * d, o D" O" X( P- N0 v// Set the DISPPARAMS structure that holds the variant.* Q0 i% L( V2 M$ Q4 S/ k2 \
! g5 N5 b. |# s dp.rgvarg = pokeVariant;$ [# C# ?: p# P. D+ L; e; X
dp.cArgs = 3;& D5 Z6 I) S6 ~- p" M5 k5 \5 V: S; W
dp.rgdispidNamedArgs = NULL; % x! d1 D7 F9 X5 K5 k( h dp.cNamedArgs = 0;" x$ A1 @2 @* r- j3 M* k
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// Call IDispatch::Invoke()2 H! ?; H) e# k6 A$ _) F) ~& R
L& T5 u; o& a4 n! [7 j' [, D hr = m_pDisp->Invoke( 2 x* \# V; q' _8 B8 _5 D pokeID, ) N/ c X4 ?) y' f; c IID_NULL, \ ~5 M% l3 g) m T LOCALE_SYSTEM_DEFAULT,/ T! [9 F8 @1 G6 d+ }: r
DISPATCH_METHOD, & V0 r: B% q( [3 D6 M, m &dp, 3 }3 S2 o" Z9 q. v$ r, L NULL, : n+ g; n, o, k" J' y &ei, + J1 U# ]* H5 m7 i/ ~0 i3 N/ k &uiErr);4 Z1 v2 l, r: V! \
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SysFreeString(topicStr);9 t- \. A: `+ Y$ ]4 P! q
SysFreeString(itemStr);8 m# {$ U+ l+ g0 S
SysFreeString(valueStr);& u( h+ V* G3 o- ]" p, }5 t: p, K" ^
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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??? 8 B) X7 w* }% V* F l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????- b* ~" m2 P$ h) Z0 O- y5 U7 D# y
- x" u8 ]- n9 a / B' }& \$ w) K1 q& _2 }2.这是request的程序 0 |9 t% R# D9 B& b+ H# N% i" S1 T// Request a value from Extend% q" V0 y" o# H. [8 f& _
//. _4 m7 P% S0 N' q
// Initialize the variant that will hold the BSTR. Set the variant's n4 i' q5 ?6 b! T# E: H// type flag to indicate the fact that this variant holds a BSTR. Place the+ o' a6 }+ N* L% N/ o. _7 o$ Q- q
// BSTR into the variant structure. 7 N( ?, f; d5 W" B m 7 ]. p; ?, g; R0 \* h& \# c( T$ u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! \2 J: `& Q4 z# H& _9 y" V" H3 ^( s
8 k& B- a, h; A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & V2 o" i8 ^' m) k! D9 Q8 G/ l VariantInit(&requestVariant[0]); 7 k3 i1 J" y2 ~ requestVariant[0].vt = VT_BSTR;7 l) k- D) H6 D1 H' }
requestVariant[0].bstrVal = itemStr;5 o0 e$ X2 d) M) P9 q ]; c
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topicStr = SysAllocString((WCHAR *) L"system");/ q5 L( }* t4 m. N# u. U( n
VariantInit(&requestVariant[1]); . C- ~' U9 u" z4 c9 { requestVariant[1].vt = VT_BSTR; $ S7 k% @8 g; D5 ?, C requestVariant[1].bstrVal = topicStr; 4 b* [9 x, ?8 r6 {; j. ~5 ]5 g& P6 ~; ] G" W4 c' L- u
// Set the DISPPARAMS structure that holds the variant. " e X& [$ u+ P5 j2 N: r* v( ]/ E, ^: D & R- z, Q' ?& a7 d0 o: v dp2.rgvarg = requestVariant;5 C; `# D1 w z
dp2.cArgs = 2;- x t) V+ K; ^! H) s
dp2.rgdispidNamedArgs = NULL;5 b# z5 k; I( j
dp2.cNamedArgs = 0;% j6 n4 X2 q& G7 K, z
4 y J: A) ]9 @& r, ] var.vt = VT_EMPTY; 2 U: G& r& [2 Q& h3 J# F/ Y) O3 f" Y- ^# o! e N
// Call IDispatch::Invoke() 2 s U& v" ~. g, B- O! q1 z: N& W! G6 x
hr = m_pDisp->Invoke(. u& {: P; k; b2 s! l8 A
requestID, ?; e8 W3 t: H3 r$ l5 j2 H/ E% {
IID_NULL, , t9 a1 j+ L) p+ b; i LOCALE_SYSTEM_DEFAULT,3 }9 X% s: s$ a2 n! O9 o* C
DISPATCH_METHOD, ; ]1 [9 t h" C2 d6 Z3 V R. c% }1 f &dp2,, N9 P) h' p$ ~6 a1 H; N$ a5 O
&var,0 d! A# G. g4 s# G" E1 O. W6 d! s
&ei,4 O/ W% r6 \' v; C4 V
&uiErr);! q- X) z* t, l% u' R
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SysFreeString(topicStr);9 t, @/ q; r/ R7 g0 C5 f
SysFreeString(itemStr);7 b' i+ R$ a, d. u8 O( e
请问该程序是获得extend里面的哪个值? 0 D+ o6 j1 ^6 F( a3 ]3 y$ `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????