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:# c, m" k! E3 P) W
Name = (WCHAR *) L"Poke"; / m! v5 A0 C& r: j0 B+ Y * v- z1 u9 L: f$ ]4 o3 |9 a3 w hr = m_pDisp->GetIDsOfNames ( ! b4 z7 U6 g2 d IID_NULL, // reserved& O' [3 J! Q4 E; k
&Name, // Array of names to get IDs for k5 D% y' [7 @! Z) t8 U 1, // # of names in the array5 Q0 |/ w7 w% {7 `2 l1 R
LOCALE_SYSTEM_DEFAULT, // System locale , w; M% T. w+ f$ `% e &pokeID); // Array of IDs to fill on output - K" I6 L0 T5 M/ W" g 7 R" ~, K; l1 Z if (hr) 7 P, t3 q2 f# _3 R4 L* q { , k! j, s+ g) B- i& }) X7 \ MessageBox ("Get Poke Unsuccessful"); 3 G8 B& h. x& w% { R5 q return; 1 k- p+ F: W# i3 C) V: k } . z: b, q+ i: t4 S3 T2 E' F* s5 _0 K9 x) _- o9 J9 B
/**************************传递数据给extend**************************************/3 z" f6 }6 _& g# T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" z; _# `/ |6 a2 y, s5 e5 g& D
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valueStr = SysAllocString((WCHAR *) L"1232");* B( l8 q6 s* ?/ R7 c/ c: S
VariantInit(&pokeVariant[0]); $ w* D! |- n0 d" q2 R3 a0 q
pokeVariant[0].vt = VT_BSTR;- ~( F( I1 {. j6 U
pokeVariant[0].bstrVal = valueStr; 8 _9 W. R! i. r; {. l, f$ B& v9 h# ~' s+ t1 o) L) w# {3 }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , S+ {) G/ [) j" U VariantInit(&pokeVariant[1]); + S7 u t- A$ ]; k: |; _
pokeVariant[1].vt = VT_BSTR;. f5 Q4 H7 k) @) k+ h) e
pokeVariant[1].bstrVal = itemStr;& { z- `+ g8 J1 I4 K F4 u/ C0 Y- ]$ {# m
9 G0 s/ w0 ~& p- o( { topicStr = SysAllocString((WCHAR *) L"system");) |) j }9 {& D4 a/ |# `, e) i1 m
VariantInit(&pokeVariant[2]); " {* Y6 \( Y8 `7 P
pokeVariant[2].vt = VT_BSTR;. a& r& N! A9 U m' B& v
pokeVariant[2].bstrVal = topicStr; 5 d) W' |0 L- ^/ n0 ]0 s( G ; z8 ]) n( P) _1 j' b; t+ h9 ?// Set the DISPPARAMS structure that holds the variant. + W7 y2 Q; [. X & w& H# G) d% v( S% N; x dp.rgvarg = pokeVariant; 0 {! e, v+ K9 \5 F) W. K; ^ dp.cArgs = 3; G+ e; @7 N4 ]
dp.rgdispidNamedArgs = NULL; 3 G: C* a) z- b& K5 P \5 w( K+ f dp.cNamedArgs = 0; 6 G# R' o4 \2 h% J8 Y8 L9 n, ~* t& [0 t" U# D$ x8 h# I
// Call IDispatch::Invoke()) V5 O+ V0 _$ r0 X& V7 o8 N4 C9 g G
+ z8 S$ P$ M6 e: y" o hr = m_pDisp->Invoke( ( n9 ? D6 r M' r pokeID,1 l7 m2 M9 F( f
IID_NULL,( m2 U2 e5 G W' ~7 ?1 u
LOCALE_SYSTEM_DEFAULT, 0 H) C4 S' F0 G$ ? DISPATCH_METHOD,# f% f: E* O! \; a) m
&dp,6 ]1 u; }+ {9 {
NULL,7 C. w) g" N0 U2 Q: m! b
&ei, , w. w8 X6 q, k8 }2 v% g &uiErr); : ]# r. ~ V W 5 `4 X1 W* j: d" i# A SysFreeString(topicStr);+ I, o* l+ }2 t) j: f# Q0 s
SysFreeString(itemStr);1 J Y3 j) b4 m' V9 U
SysFreeString(valueStr); ; I' j/ r+ a* b) d $ Q/ J% [: _4 q+ G' b( f a9 _现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? 8 d1 C7 |! @2 G1 D此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????; A# Q) R: Y# H$ ^9 t9 s
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* X# R5 z) g/ \. B! [6 ~3 ?) n2.这是request的程序 6 A J8 r' M* G// Request a value from Extend ' }7 u" N W! y7 S7 u" Q//6 h; N6 a4 s. }( n
// Initialize the variant that will hold the BSTR. Set the variant's 6 r" T- [2 m( l! m// type flag to indicate the fact that this variant holds a BSTR. Place the& }: ~& q" I' b' Q
// BSTR into the variant structure.! k8 \) d' b# }2 n1 O+ {) n. }5 `& b
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% o% Q8 I' H* A x+ z* ~2 d3 M
! Y: P5 a/ W9 y# j1 w# p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . L6 A$ _- j# w K VariantInit(&requestVariant[0]); 7 `( e' K% K. L0 h* I# P5 Y requestVariant[0].vt = VT_BSTR;" u9 R9 Y7 j* C& D
requestVariant[0].bstrVal = itemStr;1 {0 t! t2 B" F+ C
% V& M# I1 `# l9 o9 g topicStr = SysAllocString((WCHAR *) L"system"); & B' b6 F9 m0 N1 O' I) a VariantInit(&requestVariant[1]); 8 `$ | B3 G) j2 d: {2 _" R! ?
requestVariant[1].vt = VT_BSTR;1 V4 G6 R" F* Q9 m: n0 N. U( ~. @7 `
requestVariant[1].bstrVal = topicStr; 8 g8 N f; s- z5 j( T 1 [( E. p& E$ k" Y- Y3 {/ E- p% w, H! _# b// Set the DISPPARAMS structure that holds the variant.$ h+ ?8 g* O5 [# R
$ K# p1 y3 f& E W1 e dp2.rgvarg = requestVariant;+ S; ~6 `- g" N* ~
dp2.cArgs = 2; 7 h. \7 P. T& k1 s+ u5 _0 N dp2.rgdispidNamedArgs = NULL;! B6 Y) Y$ r. r& L+ ?
dp2.cNamedArgs = 0;+ }+ F" B0 j x* f) [; I5 f
( r7 Y- \6 I: G; b" D# _! u* {; \9 N var.vt = VT_EMPTY; 5 [# u( u" y8 x \1 z% [3 t + K+ |+ Z/ p5 b' l8 X3 f+ ?// Call IDispatch::Invoke() 8 k! g2 j, O) f2 H3 X0 e! r- L( c% r
hr = m_pDisp->Invoke(# _) ^ j8 O; Z1 c
requestID, 3 O: I" j& s6 S IID_NULL, 3 H( g6 Y+ n2 W% u& ^ LOCALE_SYSTEM_DEFAULT, , Y5 l: N% B: U! f9 a1 c0 J$ S6 G DISPATCH_METHOD,. U, q1 [( m! R6 Y
&dp2, - l1 z1 J+ I& _ &var,- q, n3 c! B; D. A
&ei,3 w6 t7 X' x4 s3 h# H
&uiErr);; V7 s* b3 |9 l% v
# ?" j9 w8 k0 y5 l' T2 `5 G SysFreeString(topicStr); 5 ]; c* C- Q& j- S; e4 e SysFreeString(itemStr);2 C+ U" ]; x: c( V9 Z( F
请问该程序是获得extend里面的哪个值?- o( J. i' o% Q4 D5 K+ r0 f, q5 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????