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:$ Z$ s, a4 Y/ U# j4 I
Name = (WCHAR *) L"Poke";
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/ `) W9 ^8 d- q$ D; _/ V hr = m_pDisp->GetIDsOfNames (. E; f; x1 w- ?
IID_NULL, // reserved
4 F/ v8 h4 q6 X& W &Name, // Array of names to get IDs for
% m8 s- t5 \- b) o% V/ l. H 1, // # of names in the array
: I" O# [) a; a" \ LOCALE_SYSTEM_DEFAULT, // System locale
* t) c* ~& D, ?0 x' d0 }9 D &pokeID); // Array of IDs to fill on output z3 n! N5 q/ ~7 M# W( X8 q/ k" E" }
/ w+ \$ ~. k/ X4 q( s7 X if (hr)
7 a/ U z1 T9 t) o& @& P2 u; T4 K {6 Y" v! x# z/ _ ~
MessageBox ("Get Poke Unsuccessful");
b/ F$ M3 X+ O# |" V return;
8 `$ S7 U9 h6 s2 w }
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/**************************传递数据给extend**************************************/( n, o3 m l I3 y$ Z. N9 H! T) n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 F0 w- K( P D3 z2 `" f
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valueStr = SysAllocString((WCHAR *) L"1232");
5 N' @9 n( M m1 d+ Y VariantInit(&pokeVariant[0]);
- G, W2 u1 f& J! }* c; j pokeVariant[0].vt = VT_BSTR;
) L+ r! P( G* `& ` pokeVariant[0].bstrVal = valueStr;
( \ }" s. s4 d- J5 A5 w+ h
: |" {+ d9 h; [8 B5 h9 T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
_9 n3 F+ i9 t+ t' a% u! z VariantInit(&pokeVariant[1]); Y8 l; t, I3 l) d
pokeVariant[1].vt = VT_BSTR;* ^1 L+ D$ ~9 L' u' ~
pokeVariant[1].bstrVal = itemStr;; i8 d. f6 ]7 k
1 l7 E- r6 f. X, q% h ~$ |, Z% Y! o) u topicStr = SysAllocString((WCHAR *) L"system");( s9 S7 f. w2 ]6 ]; ]5 z3 |
VariantInit(&pokeVariant[2]);
9 l+ P3 d+ f+ u pokeVariant[2].vt = VT_BSTR;3 B9 S' i6 c/ J
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.* A* Y: a% c* h
( x7 K; m- Y9 m1 o; p6 j dp.rgvarg = pokeVariant;# ?% R0 d+ s/ j0 {& e! U. X, K% E
dp.cArgs = 3;
( D3 X# u4 C l! M2 g1 z. c8 a8 } dp.rgdispidNamedArgs = NULL;& Q& y. n2 \1 n
dp.cNamedArgs = 0;+ t7 G% Q# k' A
5 f6 F+ M+ ?" {. ?7 ? // Call IDispatch::Invoke()( V, B# {/ T8 ?
* P3 q, d/ @. c; U6 F hr = m_pDisp->Invoke(
5 v. u o4 i, g. N0 n pokeID,
. v/ T8 x5 q% c8 G+ F5 M: q IID_NULL,
" u9 H) j' k, L LOCALE_SYSTEM_DEFAULT,
* Y$ i& c* a8 I3 O- ^) ?/ p! R% V DISPATCH_METHOD,
# K/ m( _3 a% J3 C &dp,
# l I% R3 z( J8 }; W NULL,6 N5 }, X2 z4 t4 q1 T# c: L+ r; \
&ei,
; w7 V% ]- B$ c2 P# H* d* v: Q' Z &uiErr);
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SysFreeString(topicStr);
$ C8 {9 t' U% n+ j. z, k SysFreeString(itemStr);6 T7 Q p9 p$ e, F0 ~5 R2 x2 J
SysFreeString(valueStr); t0 X1 c- q+ r" w
# N: U* K4 C/ o- k 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???( |6 K4 M( J( ^
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????
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9 _. J# l9 c* M; G/ S: G8 r+ T 2.这是request的程序
/ _2 e5 S6 ?4 b( m" q& [! E // Request a value from Extend
( E+ q2 b) p4 ]1 K) _3 P8 ^ //
6 C1 E7 ^' R# Y+ q& m! @( i# Q // Initialize the variant that will hold the BSTR. Set the variant's
( ?! M7 n }* L& c // type flag to indicate the fact that this variant holds a BSTR. Place the
4 I6 j; |# U" ?4 w# c' ? // BSTR into the variant structure.8 P0 J% t& I# g
# ~2 V) K8 c9 n2 j1 e+ s* v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% s* g4 A/ p8 S7 p( t2 y4 r; p
|/ j) W6 [ M2 H. s v, c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; B% l2 |5 [9 Q$ Y- d9 ]! j VariantInit(&requestVariant[0]); 9 h1 z) T9 h2 |
requestVariant[0].vt = VT_BSTR;2 U% ~; H- v$ Z9 g' H8 Y" [% w
requestVariant[0].bstrVal = itemStr;
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- a. E; ^9 C6 j" b topicStr = SysAllocString((WCHAR *) L"system");6 w8 F4 k( l$ O
VariantInit(&requestVariant[1]);
. @: ]7 T. h! a0 D9 { requestVariant[1].vt = VT_BSTR;; F$ O8 k: [& f5 B/ X$ U
requestVariant[1].bstrVal = topicStr;& ~& Q, F, u+ w9 L P* `- n# P v
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// Set the DISPPARAMS structure that holds the variant." @; \0 `1 p2 G3 ]/ w
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dp2.rgvarg = requestVariant;
S4 ^" m% s) R" s& L dp2.cArgs = 2;2 ^8 _. U# b$ l7 m! e# Y$ [
dp2.rgdispidNamedArgs = NULL;0 w3 q1 r* \! q
dp2.cNamedArgs = 0;5 k" A' {) k7 X! y
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var.vt = VT_EMPTY;$ \' ~5 n8 R/ \4 c" x
7 U# H, g* K+ g // Call IDispatch::Invoke()
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" }( I& U. a- [4 U7 v( l hr = m_pDisp->Invoke(
: e9 d% \/ r. h1 ~ requestID,
- Q- t) }4 Y& l$ J: J, ] IID_NULL,
3 W- D5 v x' q! M LOCALE_SYSTEM_DEFAULT,3 O8 ^/ w* g6 U3 B0 t5 G5 r
DISPATCH_METHOD,) F |% {7 b. ]/ _+ S5 g
&dp2,
* n+ b" _2 }. b. i5 R) h. ? &var,
, H6 ~& w% T( s9 _/ o8 H: _/ f &ei,
. k6 b+ q* S5 M; l# U8 v &uiErr);" _ X T& \" N( H3 g1 N
. x$ d, s+ T1 ~8 z" L0 s SysFreeString(topicStr);- Q7 ?% q9 c" k) y5 {/ ^4 |' D$ ^
SysFreeString(itemStr);
9 @3 ?0 U* G9 `2 ?4 @ 请问该程序是获得extend里面的哪个值?
6 [* K1 O% y1 _3 o* b 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????
我来回答