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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:
$ t- k, Y' ~$ \. {8 u- {% iName = (WCHAR *) L"Poke";
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. [. P% H: j, O( @) o$ t hr = m_pDisp->GetIDsOfNames (
$ D: n! }1 d, A+ i* ]! ^ IID_NULL, // reserved
, ~5 S! ] Q* p3 q) b5 z& g* N &Name, // Array of names to get IDs for
. z( o! y+ G1 F4 u: U# Q 1, // # of names in the array
d$ j( k9 @$ j; c% q9 F0 J2 y9 y LOCALE_SYSTEM_DEFAULT, // System locale0 q8 \+ O0 l7 U) T, F( `6 f
&pokeID); // Array of IDs to fill on output
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4 }+ s4 \0 o4 h* P5 K if (hr)
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MessageBox ("Get Poke Unsuccessful");
6 p% T) \: N! p return;
" i, _3 U9 L- `! F }
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. x' q4 x" H7 X3 `( f! X/**************************传递数据给extend**************************************/
+ D1 Q/ C8 M6 B2 J# Q' _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
$ R( g6 k& e( W! [) e; w, ]& H% I VariantInit(&pokeVariant[0]); - M: w" Q$ @6 r3 P n
pokeVariant[0].vt = VT_BSTR;6 h# K/ B/ s4 Q% K0 X
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
$ {8 {+ y7 \# X9 S VariantInit(&pokeVariant[1]); 1 v5 Z( P, g# x
pokeVariant[1].vt = VT_BSTR;
* N/ W* a9 t. ?5 ], H1 f pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");9 C9 H6 O5 Q, f# N; R
VariantInit(&pokeVariant[2]);
8 ?; Q3 I L, o8 l4 a+ W pokeVariant[2].vt = VT_BSTR;
+ j' X# T8 r2 U c pokeVariant[2].bstrVal = topicStr;
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7 H3 o5 D2 I: W5 Q2 J// Set the DISPPARAMS structure that holds the variant.
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$ z4 w) |" Q; V9 g' d' a dp.rgvarg = pokeVariant;* H( y" ~1 q( ^# S
dp.cArgs = 3;8 [ ?! g9 ~9 l
dp.rgdispidNamedArgs = NULL;" h9 p1 Q" A5 I0 [% S* I
dp.cNamedArgs = 0;# S6 ?0 y8 i+ e" U# _0 \, O, V# U
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// Call IDispatch::Invoke()- x. z7 x) q% ?6 o4 T
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hr = m_pDisp->Invoke(2 S' [2 v2 U. q6 `) p0 V8 M& D, B
pokeID,# E. }" h8 x7 B0 L0 |
IID_NULL,- p+ {7 f e% k( p& L% \8 Y" z# L
LOCALE_SYSTEM_DEFAULT, s6 X% u+ L* q( W' Z2 e7 g
DISPATCH_METHOD,1 Q# W0 V1 J6 n1 l# v' S* p; {
&dp,, A; u8 b2 D0 ?7 I* s( E
NULL,
0 @6 {9 S. y+ b: }0 @( s &ei,
6 j9 m. D# o6 W" A &uiErr);
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SysFreeString(topicStr);5 x! L* x6 S1 Z% s& ^$ ?
SysFreeString(itemStr);
" X4 c& E) Z- {9 \5 y SysFreeString(valueStr);
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9 X. a, }; t& s* q K6 d+ W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???2 ]1 `9 s* f4 X7 s K& ~- z5 U
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????! o5 i" F/ |" n5 _# K% o+ b
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, Q0 B' q, z# ~/ N2.这是request的程序- Y4 a5 t- D' ^' A5 C$ @3 }: e
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's. l4 `: y" w b! ~; D+ K. D
// type flag to indicate the fact that this variant holds a BSTR. Place the
3 w$ s1 K' Z/ F; r! U. t: Y* k* D// BSTR into the variant structure.
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! ?- b; g6 x) f% }- R! o: Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 |/ X7 @2 R( S0 m
VariantInit(&requestVariant[0]); 9 `; Y) z- \ {$ X( T7 V- z
requestVariant[0].vt = VT_BSTR;. f+ H! Z* }* d- J2 J
requestVariant[0].bstrVal = itemStr;
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; R. ^2 G- e U4 D topicStr = SysAllocString((WCHAR *) L"system");% C4 |3 {; N) t* g) A+ z! y* p
VariantInit(&requestVariant[1]);
4 t. b K% _& \2 v6 j7 L. W requestVariant[1].vt = VT_BSTR;
$ m5 ~' p# [* ^7 H requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.: q4 H5 Z- h6 p# u; {
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dp2.rgvarg = requestVariant;) F. H B1 G" x( S, A* M9 z
dp2.cArgs = 2;4 L7 h/ z4 |7 ?8 m5 e2 x4 k( S/ B
dp2.rgdispidNamedArgs = NULL;5 H$ `) J* B0 M) I, g9 F( I8 N
dp2.cNamedArgs = 0;1 x* i% Z5 g/ S2 J+ w! X* j- [" D. U
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var.vt = VT_EMPTY;: k9 q* v+ m5 m% ~4 \# y6 {
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// Call IDispatch::Invoke()0 m$ y! E( `. }5 A! X! z' F$ d! d
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hr = m_pDisp->Invoke(9 j, T9 r& c) {# ^& l& Z
requestID,; I; A7 I5 I& N" S
IID_NULL,
9 e0 `* t4 @% Q7 B. D2 |9 f LOCALE_SYSTEM_DEFAULT,- C: N! w+ B$ F- }
DISPATCH_METHOD,9 K/ }4 w x' n1 O" o$ S
&dp2,
5 n; F2 N( W* l% C &var,
4 j8 M D w! Z' b+ Z &ei,
( b2 f( Z0 F" ]& K! A &uiErr);
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SysFreeString(topicStr);
! U: K) P5 n- f; [+ T9 O SysFreeString(itemStr);
0 e$ i! g$ m: B) ~+ K& o4 _5 c请问该程序是获得extend里面的哪个值?
5 h7 C% p# r6 Y( M: z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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