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: ' S8 _$ x& B/ o, Q7 A C0 d( S# gName = (WCHAR *) L"Poke";! S# G, a- e ~. L9 {& m
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hr = m_pDisp->GetIDsOfNames ( * ^1 U7 o# Y/ f" ~* |: m6 f1 s IID_NULL, // reserved- ^- w2 j7 x4 l' F) E
&Name, // Array of names to get IDs for/ k' |% p6 Y7 m3 Q8 L
1, // # of names in the array4 n9 q3 c2 U, m8 B' V6 o
LOCALE_SYSTEM_DEFAULT, // System locale ) X0 ?5 k( t$ @5 j &pokeID); // Array of IDs to fill on output6 O/ t" _4 ], X/ g$ K5 t* q0 `) o
4 Q3 P4 K8 \' [3 f2 z( S if (hr) 5 n8 r. T- F3 x2 I9 \/ d ~: C { Z0 M" w$ y4 |2 P" h
MessageBox ("Get Poke Unsuccessful"); C2 U ]9 K# J% x: _- q8 ^
return;! \; c& S' O( c* @" X5 T% b
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/**************************传递数据给extend**************************************/. k" L2 v4 x& n8 \' S; u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) B u2 z( P! g. Q / u% S7 Q8 P4 \3 r( h- R" g valueStr = SysAllocString((WCHAR *) L"1232"); # C4 i; l& T/ s% m, ]5 R ^" q+ o VariantInit(&pokeVariant[0]); 5 n+ b3 r1 `8 G1 p pokeVariant[0].vt = VT_BSTR;' H% r7 r7 H. r+ E
pokeVariant[0].bstrVal = valueStr;# q- N. E3 h9 e2 {. q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 v" @! }% t. X VariantInit(&pokeVariant[1]); . e% n% s/ H* B0 @: H" J
pokeVariant[1].vt = VT_BSTR; , Y1 n3 ]6 `' X+ u, g# U" E pokeVariant[1].bstrVal = itemStr; 1 z( c5 G( a) f* p; R. B& d1 v4 j% M* v; r
topicStr = SysAllocString((WCHAR *) L"system"); $ K5 \9 h, r9 S; x" l VariantInit(&pokeVariant[2]); + V, r! S# |! Z0 i9 s pokeVariant[2].vt = VT_BSTR; 9 W, \/ Q- N7 v pokeVariant[2].bstrVal = topicStr;, U Z. Y! q; u5 R- Y( N0 w
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// Set the DISPPARAMS structure that holds the variant. $ Y% ?* W" p/ s) E# b e4 |0 v- K
dp.rgvarg = pokeVariant; 3 \# ^( J4 U, j L. s0 s dp.cArgs = 3; 3 y3 y3 w% M8 B dp.rgdispidNamedArgs = NULL; ' q1 t& k" ]9 z7 ~0 g/ B4 _ dp.cNamedArgs = 0; : {7 ?8 @5 b) ^& A( y% e0 v) o9 a2 j
// Call IDispatch::Invoke() 7 e5 `: w) N) d; Q% H' i# ]8 |$ \) ~& k( s. z" U% F
hr = m_pDisp->Invoke( 7 a) `" w* r$ R) a8 D pokeID, # c* t; M: J, H4 y( m( @$ b IID_NULL, & g; \& }7 M3 f/ R |% y LOCALE_SYSTEM_DEFAULT, 8 Z$ B8 _* A k1 J* L DISPATCH_METHOD, 7 u: }# k2 s" k6 J# Q &dp, 5 [$ z" b! Z% k5 [. A2 u: e: n, a9 K NULL,$ k6 v4 L6 I) W
&ei, ; Q& }; E2 y% s &uiErr);7 i, q0 \) {6 ?) ]( B9 f
4 A# B& @1 {2 V( X; T SysFreeString(topicStr);. ?9 Q+ D4 l9 D+ C2 f
SysFreeString(itemStr);# i0 B% b" r! f4 y0 x2 s4 M2 C
SysFreeString(valueStr);4 i7 f S* b- j1 C5 E9 m
$ M7 ]! E5 U, o" I9 J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???) A% l7 K% _7 q M5 h9 A
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???? {/ _' q2 u- J; |3 O' v
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" z$ y* n0 j& ?; _* C6 }7 \9 Y2.这是request的程序 ) K4 L! j! u' Z// Request a value from Extend 5 ?% z& Z+ c7 Y! S7 B' k$ t- }/ ^+ o//8 ?5 D5 y f$ `
// Initialize the variant that will hold the BSTR. Set the variant's % c, }6 C0 |" a- O/ k! U5 e( O1 S8 }// type flag to indicate the fact that this variant holds a BSTR. Place the8 z/ W7 V% a) t- J' V5 {* H: ~
// BSTR into the variant structure. 8 z/ r* U3 O* S4 Q I: x$ _( t3 U0 O+ S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 f% J7 s2 ~2 e- Q
+ h4 e; C% @$ M- |3 R: `! { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 ^' q5 ]% E" O VariantInit(&requestVariant[0]); ( W' H9 [7 m, Z3 m- X/ [
requestVariant[0].vt = VT_BSTR; : m+ @$ h. `: K- \7 f; m requestVariant[0].bstrVal = itemStr; 3 E" |3 p- r" H/ h1 C% a* I4 R, @8 q, T6 g2 t
topicStr = SysAllocString((WCHAR *) L"system");- S+ l. Y6 R' @8 s
VariantInit(&requestVariant[1]); 0 o: ]) Z0 U! O$ R7 L5 J+ p9 u
requestVariant[1].vt = VT_BSTR;/ W5 K( A$ I* t9 c0 G3 w4 ?
requestVariant[1].bstrVal = topicStr; " ]% R5 t) H9 I: e/ `) J 7 F: a# O' m% h4 `/ e4 X// Set the DISPPARAMS structure that holds the variant. 1 o8 h. u0 O' i; h, S4 W/ s" [ " g1 m2 k+ e4 p& z% P6 v dp2.rgvarg = requestVariant; * q/ D8 w0 Y) k) x. `3 E/ P0 N% k dp2.cArgs = 2; " a' ]* T2 P! z) \4 D; v dp2.rgdispidNamedArgs = NULL; 6 F- P* O( c _+ k' z$ R; T* C dp2.cNamedArgs = 0;/ _" Q, D/ e. s5 t
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var.vt = VT_EMPTY;1 S& P5 z' }6 v! r" M
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// Call IDispatch::Invoke()# Q7 A/ ]* ^+ s5 ?# q, J7 G. w
; O5 r+ k3 i, @; m- A% _ hr = m_pDisp->Invoke( 8 M+ ~$ e. M+ a; x- u( W- d# l: _ requestID,- _! w0 q$ D/ {& n- r
IID_NULL, 1 \% U$ _ U$ `0 c4 H LOCALE_SYSTEM_DEFAULT, + m) I% t, Y9 t. g& i! R DISPATCH_METHOD, / W B) s; [* }/ ~7 L0 c2 `# t &dp2, $ e5 M# M$ E( ?6 b8 W0 W &var, 8 A$ r4 I9 ?. M' D& B &ei, : V5 _4 Z$ e+ r; | &uiErr);, X' s" }$ C2 ~$ X
\* `* f5 N/ R# B j/ v F6 C SysFreeString(topicStr);) f) @/ A7 H" @# J# P
SysFreeString(itemStr);7 }$ u) u( j' t% B4 G
请问该程序是获得extend里面的哪个值? , K9 L$ @5 U8 y, X& 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????