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:
D! A) S( y- @3 I; j' [ Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (& ?) l5 s& q: d e1 r8 B7 O$ J8 F
IID_NULL, // reserved
9 y, Q% g4 v3 p &Name, // Array of names to get IDs for, H1 F% L# V, @7 k4 p
1, // # of names in the array
* A( X. ~' Z: k LOCALE_SYSTEM_DEFAULT, // System locale+ ?" I* |6 Y. L* F( k, n' P0 h
&pokeID); // Array of IDs to fill on output' C5 Y% l/ q( D A9 I2 r3 v
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if (hr)
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MessageBox ("Get Poke Unsuccessful");/ m, k/ t* ]" }9 q3 V4 C% V W: b
return;
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/**************************传递数据给extend**************************************/
- J6 q1 p/ U0 Z2 x& p0 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" S8 m# [6 H% Q& `
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valueStr = SysAllocString((WCHAR *) L"1232");5 V b! {& `5 U5 t1 I0 W
VariantInit(&pokeVariant[0]); ^2 W, x2 w, x% g. Z& ?
pokeVariant[0].vt = VT_BSTR;
( @* b$ w _' H; {# ~' c% o pokeVariant[0].bstrVal = valueStr;- z, l# J9 c# ~' |" e
: _8 G2 F! C% m3 m9 X" v; ]3 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 b( M1 W$ Z$ k7 Z7 _ VariantInit(&pokeVariant[1]);
1 S% k- q" x( l9 Z pokeVariant[1].vt = VT_BSTR;
. S+ U" m* n$ M) a pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
. o& ]3 G& N% z5 [2 g2 X VariantInit(&pokeVariant[2]);
+ T! v6 P3 T* o$ |7 H# O pokeVariant[2].vt = VT_BSTR;4 w: i( K' y; s! {# l, ~
pokeVariant[2].bstrVal = topicStr;, @' D- r$ i, A7 j5 L0 O
; b6 \. C1 A" |) Z* w3 {
// Set the DISPPARAMS structure that holds the variant.
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; n4 Y: t) a$ E6 ^ dp.rgvarg = pokeVariant;
6 V2 R: a! O/ J2 H4 e) |7 \/ O. \ dp.cArgs = 3;
' F0 S# P1 m4 @) e dp.rgdispidNamedArgs = NULL;: ]; |; J+ D3 ?7 s
dp.cNamedArgs = 0;# }! f' @; Q3 d0 }; S0 ^ }
! l) k8 I) O3 u# E. I // Call IDispatch::Invoke()
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$ [/ a+ u: [1 L3 J( ?7 |: O! |1 W hr = m_pDisp->Invoke(
) d6 t8 E% U3 }: `, |. U pokeID,, m% B" ~! r( y# R+ ~( u
IID_NULL,; {) n7 U* U6 X m" y5 c! }
LOCALE_SYSTEM_DEFAULT, o. G& X6 u i, b" f/ s3 @
DISPATCH_METHOD,! i2 h5 L+ i. r2 `- v
&dp,+ Y* G9 W4 M0 ?+ a
NULL,' k6 L$ ?# _2 B8 s2 p h B9 E
&ei,
7 ~& z9 |; j* z* j &uiErr);8 N8 i, I1 G. h/ \% t6 [
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SysFreeString(topicStr);
+ Z6 F( p, E) i+ ^ SysFreeString(itemStr);
' T# S% `6 u; N. z! A& B8 i SysFreeString(valueStr);! J1 k+ ^$ m$ r0 ~, n- s* l! l
( g" L- S1 O) C* Q" v 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???
0 h# {9 _4 [; E% Z6 n# | 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????+ G" V3 ^) k$ |# g
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2.这是request的程序: e5 s" `. ^, t4 O
// Request a value from Extend
- s# K) n A- o! q% z* m //
" S' s) F9 P$ ~) N7 S // Initialize the variant that will hold the BSTR. Set the variant's! ~7 B+ z( d. Z" ?
// type flag to indicate the fact that this variant holds a BSTR. Place the
8 M' l, c7 V# o0 D" ?+ y% V1 F5 F // BSTR into the variant structure.6 o# |& i9 @& a' b A
! j+ m( A ]8 ?' `0 j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: c; Q ?$ p# q* w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 ? Z% M' O+ @2 }8 { u. I, ~6 {( D- q
VariantInit(&requestVariant[0]);
, P0 |$ l4 k# `0 s, i! S4 L+ ^ requestVariant[0].vt = VT_BSTR;
% p* {$ D: x! o# p# g+ a requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
3 L4 y( F% u0 n! y- e$ ^ VariantInit(&requestVariant[1]);
& H; U% L+ K( U* Q8 N, x' ?, X requestVariant[1].vt = VT_BSTR;' b. r9 z& ^+ B6 o* K
requestVariant[1].bstrVal = topicStr; K7 ]5 t; W& V& W1 _6 G" {
1 M* k; W" i+ N7 H // Set the DISPPARAMS structure that holds the variant.
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3 y" J8 j$ \- v8 v0 J1 I7 M x dp2.rgvarg = requestVariant;
z7 Y; u" j% u( W1 O" q$ U dp2.cArgs = 2;
$ L, R2 Q2 g9 u3 N1 ]! _ dp2.rgdispidNamedArgs = NULL;
+ W8 H+ M) W; a# b6 a; B dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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; G/ ?9 E* n- ?4 O: R* f2 m // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(8 c% v2 q$ }) z' r
requestID,
3 }- l7 z8 \% ?2 {: R R, B IID_NULL,
0 B5 i4 p. J: o4 c) o% v; T LOCALE_SYSTEM_DEFAULT,3 C w5 H7 a6 s9 I
DISPATCH_METHOD,/ e7 m+ C" g5 f4 G+ i: u. l; O
&dp2,
! K7 j2 ?; x2 q) A8 v. N &var,# l. N l/ ^6 L8 X% g, B
&ei,+ C% z7 I6 X+ y" g* `
&uiErr);
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SysFreeString(topicStr);
/ d0 K, ?3 l3 d/ i. u SysFreeString(itemStr);( x1 @% m/ x1 A# W/ ]2 B# ^
请问该程序是获得extend里面的哪个值?
$ r, a) H* ] o8 X3 L/ c 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