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: 1 u ]1 p" W% F- u! K. GName = (WCHAR *) L"Poke";. X0 C: d! Q2 P
$ r! L$ l4 e& S9 u! H! M hr = m_pDisp->GetIDsOfNames (6 Z$ k/ \# I) @& S% G
IID_NULL, // reserved: T6 e2 ?3 k% I: B# J& Y0 y6 ]( W
&Name, // Array of names to get IDs for 8 y5 f5 S2 S6 E0 @0 H$ f5 C( h. s 1, // # of names in the array. N: W4 E- p. l2 h
LOCALE_SYSTEM_DEFAULT, // System locale 4 u4 |6 g8 {7 ^+ ~& A &pokeID); // Array of IDs to fill on output8 {/ d6 Y, E2 m g( B1 X
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if (hr) ^6 c' b2 S: d- i7 a
{ 9 g( o, ]6 C8 `& z1 G" R& F5 D MessageBox ("Get Poke Unsuccessful"); * o+ b @) `) u0 p5 T return;/ d; @. U% ?: W4 n
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1 E9 @. H( L* d, s3 B2 E valueStr = SysAllocString((WCHAR *) L"1232"); & w! Q( |+ [) B9 I# @& j/ ]9 I VariantInit(&pokeVariant[0]); ' v2 V! Q5 U, Q; t
pokeVariant[0].vt = VT_BSTR; 1 Y7 \" m! k4 W' g; U pokeVariant[0].bstrVal = valueStr;2 V3 I p* ? i+ n7 P: m- _
9 `+ P+ r$ a. V0 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& g% J' p: a% U0 Q
VariantInit(&pokeVariant[1]); 5 u! W5 J- X6 s
pokeVariant[1].vt = VT_BSTR; - I# j3 b& d; d6 b pokeVariant[1].bstrVal = itemStr; / x1 y9 d1 j$ C6 G$ d5 C. z4 D5 x* q( F6 B8 z
topicStr = SysAllocString((WCHAR *) L"system");; k. ?+ e( U3 D! ^
VariantInit(&pokeVariant[2]); 9 h- F& z9 u/ [3 j3 ?: T( K; z pokeVariant[2].vt = VT_BSTR;6 y5 [7 ^) v* L7 Y
pokeVariant[2].bstrVal = topicStr; ; v/ [7 f. G* y) ]9 P: k 6 Y/ N5 K! { \' N1 g& h// Set the DISPPARAMS structure that holds the variant.# U1 r( P4 i: H3 y: X7 C* ~
+ b( p& @0 k# V0 a9 l+ a dp.rgvarg = pokeVariant; : @, R z4 U! |0 X0 a" p9 Y' Z# Q/ o* k dp.cArgs = 3; ; M0 z5 @% m) d, r. {. ^2 N dp.rgdispidNamedArgs = NULL;8 s+ r7 r" Y" t# ]% ^' U, p5 C
dp.cNamedArgs = 0; 6 X; G) b; O5 x+ }9 w& r # J# g& |) t0 S8 N V, X$ f, S// Call IDispatch::Invoke() * f9 W% E1 {4 X% p ) Q$ x# l+ u0 p2 K hr = m_pDisp->Invoke( 8 k) h: r8 B% O) F: g- F pokeID," q+ W. a6 t9 p* b6 I0 `$ i% F
IID_NULL, ( _' q7 R% y+ c/ X$ C5 V( E LOCALE_SYSTEM_DEFAULT, % }3 Y9 o7 D$ u C, _- u9 [ DISPATCH_METHOD, . R) T2 m# x& g& H' U &dp, + @6 d, x% K0 j- @: M) b NULL,- g2 ^4 ~% R" V
&ei,& ? P7 K+ v1 P$ l# d A: S& ?
&uiErr);9 d% q3 u9 U& A P
& v: ^) Z% l" k2 ^- k SysFreeString(topicStr); , F5 ^* D. k& z! g1 r5 K* I SysFreeString(itemStr);/ |/ K+ R. v0 I9 [
SysFreeString(valueStr);! d& g% F' e9 g# O6 _2 Q& t r
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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??? 3 [, O$ F8 y- c6 {% I- q6 }0 K7 k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???? 6 N$ u+ K: w* k- A3 R& D. |- p/ B5 g& I' G
. O) I- u: w# t! T4 n: V3 Z8 H2 T2.这是request的程序# {0 ^, y* S$ K3 w* f
// Request a value from Extend9 \* d, |( ?2 O( _, t3 \& U5 B* n4 h$ m
//2 f) @0 l e J; `/ l; [
// Initialize the variant that will hold the BSTR. Set the variant's/ Y. o9 ~1 K9 ^+ @& Y- _2 A- j
// type flag to indicate the fact that this variant holds a BSTR. Place the7 F8 ?; \) q. O6 k, X; b9 d) |2 h: h
// BSTR into the variant structure.# K0 u- }( D1 n' z# a" V
: a2 B/ a/ l5 f2 { j; w: { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( Z$ @- m7 w6 U, s7 n - Y1 M1 P; U" \1 ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' x% Z7 W( J# ? c9 I
VariantInit(&requestVariant[0]); 0 |1 D& D0 ^7 |3 w& e3 \
requestVariant[0].vt = VT_BSTR; 0 M2 l; t) i3 @: U/ S requestVariant[0].bstrVal = itemStr;. m, c8 p4 Z, F( B
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topicStr = SysAllocString((WCHAR *) L"system"); " K/ ^! a* \8 }0 |$ C. ? VariantInit(&requestVariant[1]); 3 [4 n1 z) H# T" D* H( V- ~' c
requestVariant[1].vt = VT_BSTR; 8 X& d( @& h3 Z, F: e2 d' x6 K requestVariant[1].bstrVal = topicStr;( n" h5 x8 k6 X! B% v/ b
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// Set the DISPPARAMS structure that holds the variant. 6 O; \. ]$ A2 G& D8 y 6 A: b& x1 S; y! r; ^ dp2.rgvarg = requestVariant; ; C# n& j- t6 A! Z* s dp2.cArgs = 2; 3 [# A' x. @5 |' \. n: _' K8 T! ~ dp2.rgdispidNamedArgs = NULL; , w7 @, L0 z' {( z/ h dp2.cNamedArgs = 0; 1 \4 F' g. V* a# e$ x( a! q9 A4 j! v8 X: t; n: Q
var.vt = VT_EMPTY;; @0 Z. d Q/ V& Q# T5 P# g) _- m
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// Call IDispatch::Invoke()0 C3 U4 N( H6 H; Y- |1 v5 ^' h: C9 S
% ], U0 C" s- a( \# c: Y hr = m_pDisp->Invoke( . s& e- r* B3 d6 {' s requestID, 6 I5 S. T/ v' b E IID_NULL,. y1 ?7 i6 z2 `- S9 f0 N
LOCALE_SYSTEM_DEFAULT,7 F' b- a) ~6 \+ w: N H/ F
DISPATCH_METHOD,1 R3 d& V1 g0 ?5 k: c& u# |2 Z
&dp2, ' _7 I$ c/ h9 C! d &var, # Q( [* x# p! E3 k0 d- T8 \4 y" U &ei, 0 h9 N/ w# ~* C0 L& ] &uiErr); % g$ Y" }. }0 |; O( i) {! J) C O# _( a+ m7 |
SysFreeString(topicStr); i5 l! C- ~7 \; b SysFreeString(itemStr);% y) v: i# L i+ J' N, B, K
请问该程序是获得extend里面的哪个值? 5 b2 p6 F$ ]' h! n) y7 R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????