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:# g0 p z, Q+ H9 `* l! I
Name = (WCHAR *) L"Poke";6 E/ @3 [+ j K+ L" S# z9 s2 o
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hr = m_pDisp->GetIDsOfNames ( / X3 a- x( ?- s2 h" h, k IID_NULL, // reserved ; V/ r9 V. k# E/ a8 i &Name, // Array of names to get IDs for* S, D* Y2 g; E- ?3 w- C. |: C3 O
1, // # of names in the array 9 H& Y# i E. f8 s0 A6 P LOCALE_SYSTEM_DEFAULT, // System locale* Z3 ^/ j3 i) H3 h8 T1 q% P
&pokeID); // Array of IDs to fill on output + J8 s5 U- `$ ?2 q, a6 \ ' m- `( J. \1 N# e' S
if (hr) 9 Z! O+ J9 B( V$ T& {8 _ R9 x {2 \! j; n7 V& L6 R& W
MessageBox ("Get Poke Unsuccessful"); ) D4 p7 \5 r3 c# F! P: Y) i, h return; - k! _" a2 A" C2 \' U* G* ^ }" g+ O: S0 V1 l2 s0 [$ ]+ |
+ Y2 c( l3 g3 ^, e/**************************传递数据给extend**************************************// i2 K- p+ E, l/ h. o, z e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: Z7 {0 U7 m- f2 O. h
6 H9 x3 W5 k( l* o G valueStr = SysAllocString((WCHAR *) L"1232");- U4 I, ?, C/ C) D9 q5 x+ ^# p
VariantInit(&pokeVariant[0]); $ `! C% Z+ X/ D pokeVariant[0].vt = VT_BSTR; 9 r K7 z" v% o6 C7 K pokeVariant[0].bstrVal = valueStr;1 S; u* g% o$ B* D" l* q
6 x# s6 _- m y# ~" \5 L; P" H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 b( `: i: S9 F+ A
VariantInit(&pokeVariant[1]); 5 L1 N& E- L9 T& r( g# D1 _ pokeVariant[1].vt = VT_BSTR; ( W: S& G% P) h pokeVariant[1].bstrVal = itemStr;- b; }" T. D$ I7 S z: t8 R) T
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topicStr = SysAllocString((WCHAR *) L"system"); ' L" |$ {3 k; K! P8 e3 R VariantInit(&pokeVariant[2]); , h k* O6 M6 d pokeVariant[2].vt = VT_BSTR;; J# k! M0 B4 t5 J
pokeVariant[2].bstrVal = topicStr;( m/ U' R. z$ t9 Y; \3 Q, {% U1 c/ p
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// Set the DISPPARAMS structure that holds the variant. / M# Y1 ?8 J' r% U4 g& N" y y. N7 D9 n$ @
dp.rgvarg = pokeVariant; * X9 t$ B. j# h5 z. h dp.cArgs = 3; 3 y' j9 c" `' Z5 Z0 l dp.rgdispidNamedArgs = NULL;, \2 B% X+ v! n" r
dp.cNamedArgs = 0; ' N# L0 {1 k7 ^1 ~. m9 }+ w4 S* n; p: e/ @/ h
// Call IDispatch::Invoke() $ u3 E8 G' q2 J- s # {+ x8 R4 n' | hr = m_pDisp->Invoke(. r% q$ k# n; n1 W5 u. l
pokeID,# i9 f9 G. h/ V5 ~6 A. Q5 `& w
IID_NULL,6 `, O' F) |; s' s
LOCALE_SYSTEM_DEFAULT," @) b# C8 b0 i4 S- O2 U y K2 d
DISPATCH_METHOD, 1 R: m; `2 m' X I, T& p' D &dp,; J1 I; D7 M- [) F W
NULL,% M3 p, d3 ?/ y
&ei, 1 H2 i( x( v8 [- \" ^ &uiErr); " g, U9 f5 |; _$ K5 v/ i& K( T) s$ I
SysFreeString(topicStr);$ m3 P) h8 i4 t. ?6 w% x9 j
SysFreeString(itemStr);, l q6 \/ h( ?, P1 ^' e
SysFreeString(valueStr); 8 Z/ N+ x! z& X/ j) f4 R9 _ 9 R( a$ c( u1 w3 l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???- k r: ?. I# F8 v
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???? 1 U; C) h. }: M$ k) X7 u5 D # ~; A3 F$ c4 q+ s 9 _) p3 s0 f( M v2.这是request的程序 9 a @; f5 j1 Z3 b |+ n% F// Request a value from Extend 1 ~& b. i$ x8 P6 N2 U" w. W* i//7 R. o* @- X% B) }$ [4 Y
// Initialize the variant that will hold the BSTR. Set the variant's" x/ {: }5 t7 A# b9 b
// type flag to indicate the fact that this variant holds a BSTR. Place the $ T, b+ l/ ~) ~// BSTR into the variant structure. # G: q0 K0 W8 f4 J! H 0 Q8 x/ w3 H% v: P/ i! Z" e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% j6 ]( ~2 Y5 J9 o; W* J
5 H: n, X# L* q. I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 ]: `9 X& r& m- x2 o# B* T
VariantInit(&requestVariant[0]); . i- v! }9 I- }
requestVariant[0].vt = VT_BSTR; 9 W' h0 f: B0 t: Q; W+ q/ ?9 I requestVariant[0].bstrVal = itemStr; : M$ A4 u$ R2 u4 e0 f& B- d1 a3 V+ W& i& L, V1 C! h2 k
topicStr = SysAllocString((WCHAR *) L"system");; ]6 q6 F8 o1 ^: @$ W$ w- p+ e# d
VariantInit(&requestVariant[1]); . T2 W9 [2 Q3 h! p6 b7 S
requestVariant[1].vt = VT_BSTR; * O- p1 F: E' z6 W requestVariant[1].bstrVal = topicStr;$ M& t8 w1 p0 K* |- w b& j7 r- P7 _$ }
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// Set the DISPPARAMS structure that holds the variant.7 S. o9 f5 U6 I/ U3 p! k2 Z
6 f4 d! {4 @5 w+ ]( s, q7 [ dp2.rgvarg = requestVariant; * t3 F e1 w4 u" U$ c" n, M' J dp2.cArgs = 2; I; |1 h y' u. a, Q0 u
dp2.rgdispidNamedArgs = NULL;, L/ f/ X3 R) _8 D( h! a- A5 S9 F2 r
dp2.cNamedArgs = 0; 7 E' f4 n5 X, c: M$ ?7 Q# l( Q ! J, `# m5 K6 V var.vt = VT_EMPTY; 8 U3 d% T. w" m: ]( S$ z ( A3 T# d6 K) e1 ^, a8 \- A) B// Call IDispatch::Invoke() 6 V" y& V3 Y$ w0 A) ]2 o3 ?/ j/ M9 S/ r7 S6 F) r& ~) X
hr = m_pDisp->Invoke(8 r! j5 I# Z" f# m6 u+ m
requestID,! k# B. J9 c8 {3 a5 G0 @
IID_NULL, $ j& `/ E7 q6 f LOCALE_SYSTEM_DEFAULT, ; |( i* v% C! f/ t DISPATCH_METHOD,6 o: j8 H+ H9 Z5 I9 H
&dp2,' i% x; f6 N. t) R
&var, / G0 C+ \, r; m0 T* c2 x &ei,( U1 P) d% q- O- a$ ?8 L, t
&uiErr);2 o; I8 o+ K2 q, b+ e2 S% M+ a' c
! k0 ^7 T5 L5 e! i4 Y; W$ r SysFreeString(topicStr);5 s( ?! K: Q. ^* z: `- P
SysFreeString(itemStr);5 e: ]9 i" z. r2 g1 G& I0 P
请问该程序是获得extend里面的哪个值?% h9 B; f) E5 o! ~; j6 p
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????