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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:
$ p! q1 p0 {/ A2 VName = (WCHAR *) L"Poke";
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) Z8 z1 [ x. o @8 K hr = m_pDisp->GetIDsOfNames (3 B3 ?. n- d% l( i$ V* z. m
IID_NULL, // reserved
1 D) _. i. X! N, J1 y &Name, // Array of names to get IDs for
5 j4 g0 S; v$ d3 _" E 1, // # of names in the array. K' j+ C9 [! i+ }8 ~/ X. D
LOCALE_SYSTEM_DEFAULT, // System locale
7 U9 E" d+ y0 I% z4 p5 y$ r &pokeID); // Array of IDs to fill on output
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. Y" R r1 g+ M/ n* E3 G if (hr)
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MessageBox ("Get Poke Unsuccessful");
: i! @. A) {, c; C( W* w return;- f) `( g) N) e5 R- K- C
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+ Z6 ~+ K0 }1 w( o, Q/**************************传递数据给extend**************************************/
/ L8 @, {$ c% ^. K; X* \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; H3 O5 N, ?) F- e2 ~% ?+ c
+ S/ {% @6 @: a
valueStr = SysAllocString((WCHAR *) L"1232");
' z/ ^/ S" @0 G VariantInit(&pokeVariant[0]); 8 I$ |3 I( z3 h" y Z' v
pokeVariant[0].vt = VT_BSTR;5 n1 I& S) ^* z9 c( \# y# X/ t
pokeVariant[0].bstrVal = valueStr;8 H7 [! ]7 s3 K8 O- L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( c0 Y# O8 X# o* }0 z, i$ n VariantInit(&pokeVariant[1]);
! h7 {" @. i- `5 `' v5 y pokeVariant[1].vt = VT_BSTR;7 r/ r7 t% |. G9 T* y L" m
pokeVariant[1].bstrVal = itemStr;9 P! D" |6 y/ o3 c2 q; T
k3 c# O7 q7 t/ d- Q; M topicStr = SysAllocString((WCHAR *) L"system");
3 E4 d" g2 n. O U VariantInit(&pokeVariant[2]); 0 I4 z, k/ r' o5 K' M2 a
pokeVariant[2].vt = VT_BSTR;
3 |5 [8 d% o3 {: U6 i& @ pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;/ h3 X8 X$ B; b% |
dp.cArgs = 3;
% b! v6 y$ L6 n" z7 e dp.rgdispidNamedArgs = NULL;
2 ]% [6 E4 v9 ~# S7 S& W4 \ dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()% h& A" ]. W& m# d: U* m2 n
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hr = m_pDisp->Invoke(3 N& p# t3 l" |* `# T
pokeID,' {5 N3 x, X( k9 S, U1 B
IID_NULL,# G. b/ e. [- h7 f7 u* }6 ^% A
LOCALE_SYSTEM_DEFAULT,2 |# x- \6 \7 L6 L* R) l
DISPATCH_METHOD,$ `8 [, c5 l8 g3 o; q
&dp,8 A; r* z5 U4 s% n; Y" k
NULL,
# @% J; \; ~7 y2 ~& v* T/ v &ei,
0 M9 r% c" a' A- e1 ] &uiErr);+ {! E9 `0 K6 y( e; e D) K
1 P0 j1 s' q3 A, M; b SysFreeString(topicStr);! Z( y7 w/ E: Y3 _2 v. Z
SysFreeString(itemStr);
: j$ b, X! t8 S( I/ g9 J7 y SysFreeString(valueStr);
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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- U! u. |3 A5 G" d; ]0 F$ t8 `
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????3 f( M" D* Q+ V9 L$ \
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4 K6 n0 b( `2 N- T2 W/ P: E2 t2.这是request的程序
* n" `( v* k& {// Request a value from Extend% e5 Q* d9 u1 p! |9 y5 a
//
/ L! s8 ?/ U$ D4 E8 g// Initialize the variant that will hold the BSTR. Set the variant's
- |/ I4 m/ t" ]/ Q# [) c// type flag to indicate the fact that this variant holds a BSTR. Place the
' }; @! S; T, [$ _// BSTR into the variant structure.5 B9 l# l' s2 y! f" o* v
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); A% a* H2 T. s4 T1 ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' W; H$ z5 O, ?2 L4 F1 g/ V* [
VariantInit(&requestVariant[0]);
, N$ N; }4 o# Y P requestVariant[0].vt = VT_BSTR;
. {. l( b" ?" j0 ]" i* C4 o) v requestVariant[0].bstrVal = itemStr;* D Q% a. x2 t
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topicStr = SysAllocString((WCHAR *) L"system");: @+ u- k, ]4 L7 f# y- \3 J3 s" x
VariantInit(&requestVariant[1]); % P0 T! x) y' h2 j7 B p! R
requestVariant[1].vt = VT_BSTR;
7 M3 l& } U9 d requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;, T+ p* V# M: B) C4 Y, i
dp2.cArgs = 2;
6 V0 {) j% g" @7 p dp2.rgdispidNamedArgs = NULL;! {" S4 y; v$ z5 s) d9 z
dp2.cNamedArgs = 0;
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# }% ^- C: B7 z- u" s var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()# Q) a* |1 g( L- l/ j5 q- ~0 G2 b
6 \$ ^8 Z" r/ a# W! u hr = m_pDisp->Invoke(2 M& s5 F) O$ t. {' t8 j% e
requestID,
7 C4 t m2 `& M! e IID_NULL,/ B* O- p* n; V( P7 F
LOCALE_SYSTEM_DEFAULT,0 B7 F- Q* \" Y, N, u, m
DISPATCH_METHOD,+ R* g# g7 E7 j0 ^0 Q
&dp2,4 F6 u. @. L' k! K; r: {* R2 ]
&var,9 X+ S5 {4 L3 t4 F+ [; N8 f$ n
&ei,
( m9 p/ I6 h- S$ f) R5 [ &uiErr);
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2 H4 B6 X/ e9 n- a! E; J- Q* l- P SysFreeString(topicStr);
# u$ L/ n4 }0 x! M6 R" s4 X2 C3 A5 z SysFreeString(itemStr);3 U, c# p" X8 S7 a) _' I
请问该程序是获得extend里面的哪个值?- p6 D# w4 @: @1 t9 j
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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