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5仿真币
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:
9 X4 G2 f' T% E" o. D; uName = (WCHAR *) L"Poke";& p% q5 {8 ^; \7 l6 [7 F9 |
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hr = m_pDisp->GetIDsOfNames ($ f" M7 o! W; b) N6 m9 d; m# e
IID_NULL, // reserved
% g& i) w+ z" J- E &Name, // Array of names to get IDs for
& Z3 C' v. p' c& E3 `4 p 1, // # of names in the array& m: r/ i8 }8 R0 H7 l% ^1 y9 m$ h; W
LOCALE_SYSTEM_DEFAULT, // System locale6 f3 d/ ?* M' [$ c8 u
&pokeID); // Array of IDs to fill on output
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+ v+ S7 \* e/ Z# B. S5 s if (hr)
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MessageBox ("Get Poke Unsuccessful");
+ p2 [$ Q! G+ Q$ C2 p return;
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8 I9 n) G' C8 ]8 L0 h/**************************传递数据给extend**************************************// Q/ c! L, j: W* I* \' t# u6 {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ `" d+ u; R7 [* A
1 g# J$ v( p- J: ]3 a valueStr = SysAllocString((WCHAR *) L"1232");
. {/ C5 d& _5 Z: T9 V# }0 n VariantInit(&pokeVariant[0]);
2 Y, I( u3 ~. W. H+ A2 p4 l pokeVariant[0].vt = VT_BSTR;
4 x# ?0 ^6 O3 b0 d pokeVariant[0].bstrVal = valueStr;* S. g. q. u! i4 j7 a2 \0 k
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
, m7 u$ h2 U4 D) Y2 S9 l VariantInit(&pokeVariant[1]); 0 _; d: P! N, M5 q! r
pokeVariant[1].vt = VT_BSTR;9 L2 U" J) M; s3 _9 J5 e
pokeVariant[1].bstrVal = itemStr;8 X, G4 I+ z: W! U% J i
2 }* e* f l; C" l topicStr = SysAllocString((WCHAR *) L"system"); c3 w0 u& S- ~5 G- L! R
VariantInit(&pokeVariant[2]); : g8 H" R, v6 e# p
pokeVariant[2].vt = VT_BSTR;! y9 y% ~5 j( Q5 c/ H
pokeVariant[2].bstrVal = topicStr;
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7 z3 n8 h7 B* N) y. m// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;1 ~# J4 J/ g7 o
dp.cArgs = 3;
" C. W- ^. l1 |( W# w. {0 Q8 c dp.rgdispidNamedArgs = NULL;6 m% R' a- p/ d( r; j
dp.cNamedArgs = 0;
+ f( L% |5 f" V/ E
- Q9 n, y* n! j8 v; q- O// Call IDispatch::Invoke()
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. \) f2 O( Y& w: I hr = m_pDisp->Invoke(
2 X) o# q, j; g8 U+ {( w. a pokeID, s& ?: @: l" \5 C
IID_NULL,
' c. \; y) |2 |' r9 V LOCALE_SYSTEM_DEFAULT,
* j4 }3 K- Q6 \3 X" P5 L& k: z DISPATCH_METHOD,
, P/ Z( ^( b9 q: y &dp,
6 t& ?& ?+ Q& V0 ]0 @ NULL,
7 n7 { T. E8 m. ~$ p &ei,
4 ]. y* d: W" l* a! {9 ?- Y &uiErr);
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SysFreeString(topicStr); ^3 r/ b& R+ y! [" F
SysFreeString(itemStr);2 J' V5 n, n0 g! t2 Z E1 y0 F e7 F
SysFreeString(valueStr);/ |" r( L8 F: O# B7 Y! p6 n1 ~
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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???
" e' \ ^7 k- C8 i8 e) B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????: p1 s+ w, E! [5 s! R$ J8 X
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2.这是request的程序+ k9 Z& `/ J0 ]# m/ `; N. y
// Request a value from Extend
6 l) c. c7 @) t( j* G8 m* S//. D: ^% B: Q) M/ Y; L
// Initialize the variant that will hold the BSTR. Set the variant's6 l$ M+ K1 p: U6 |: V
// type flag to indicate the fact that this variant holds a BSTR. Place the; B5 X* g) x3 b3 u( Q8 O. d! f
// BSTR into the variant structure.0 u6 x R) l( h
Y5 }; H" y2 E$ x$ F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* _7 e5 o9 v- f
6 v; a- c2 A5 b! g- \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 y) F* q) N3 L9 s5 m( j4 a
VariantInit(&requestVariant[0]); 0 @- y) x7 k0 l
requestVariant[0].vt = VT_BSTR;/ w2 c, g; P% @ c; C% O
requestVariant[0].bstrVal = itemStr;
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! F9 ?4 a9 K) W' p topicStr = SysAllocString((WCHAR *) L"system");+ E9 e/ i1 p t. _, ^2 \
VariantInit(&requestVariant[1]); ; w K/ P& f3 h
requestVariant[1].vt = VT_BSTR;! P+ b3 l P: d
requestVariant[1].bstrVal = topicStr;
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3 j3 E2 J4 f0 Q! g# [7 {// Set the DISPPARAMS structure that holds the variant.
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' S* A6 d' C! U9 c+ v; E& L7 } dp2.rgvarg = requestVariant;
# R6 j' z7 [; ?+ `) V, g: B dp2.cArgs = 2;1 ~0 C! w1 v, p3 m. T
dp2.rgdispidNamedArgs = NULL;: H" h" G5 ~' |2 @
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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, M' I& w" n5 Y% [0 e. @// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
; w8 s2 A" a9 w requestID,
! v' @* [0 m/ X IID_NULL,- q3 [" a* p. B& }! {$ P( K
LOCALE_SYSTEM_DEFAULT,; z4 R$ c& K( d+ X/ \. o2 t5 u
DISPATCH_METHOD,9 d+ L% V! T" {" c s
&dp2,
; c" w; s$ `* g &var,
' B3 t& R) {6 n: R' F+ A7 ^ &ei,1 y* u/ n9 c, E8 {8 e4 G! s0 t
&uiErr);- H8 F! p* D2 G/ w( `
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SysFreeString(topicStr);2 i8 ^& j! @- M8 Q
SysFreeString(itemStr);) ]$ c" p4 y& w( u1 I
请问该程序是获得extend里面的哪个值?! a' D3 f5 J. P: a# N
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???? |
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