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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:8 f. e$ P3 v( H- ^- O
Name = (WCHAR *) L"Poke";% R: O! o- W3 N6 p5 R8 \
/ J: p$ B$ K6 t X3 L9 O hr = m_pDisp->GetIDsOfNames (4 ?* x" N1 e/ Z6 q
IID_NULL, // reserved
. J5 X) R0 d5 q' P ~7 \$ s T &Name, // Array of names to get IDs for; h$ q! E* o. ]
1, // # of names in the array
+ q' j. A9 |' Z! y* r1 I LOCALE_SYSTEM_DEFAULT, // System locale
& G# \* P- x' X6 h# E) n I" w &pokeID); // Array of IDs to fill on output+ F8 q' j+ g3 |& s9 p) @( _
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if (hr), `, f/ h0 K- v9 u" {
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MessageBox ("Get Poke Unsuccessful");
( f$ A& ~+ D: Y- U/ X: b return;
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/**************************传递数据给extend**************************************/
& `, s5 h: ?; x+ D6 _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");4 r2 B- q/ [. b* c
VariantInit(&pokeVariant[0]); : O8 U/ q6 Q( v' O& ^ d
pokeVariant[0].vt = VT_BSTR;
0 c. u! r; l$ ^. ^6 @ pokeVariant[0].bstrVal = valueStr;; [( |% P) T" N8 o' a6 t( k
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 g& K% y Z: l( @ VariantInit(&pokeVariant[1]); e& O! R+ Q: W8 s0 u
pokeVariant[1].vt = VT_BSTR;
- ?! Y) h% @1 B pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
1 L) D: M1 f% @' Z VariantInit(&pokeVariant[2]); * S# p1 N( @" O- v& `3 q E
pokeVariant[2].vt = VT_BSTR;8 b) W$ d& F# F: m7 X7 L6 n
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant. k( h8 v5 D1 J1 g1 G8 W5 w
# T- e& N0 s4 w9 Z dp.rgvarg = pokeVariant;5 B& E3 N! ]+ W! I0 q/ ^/ P
dp.cArgs = 3;4 X( l/ ~' I4 C `& N
dp.rgdispidNamedArgs = NULL;
. w G; p' D. f1 [ dp.cNamedArgs = 0;
6 c7 M: p) o+ Y& r
- A' b: o" \$ D% ?5 ?' D. q// Call IDispatch::Invoke()
7 \ H5 A# c* H- V3 G( g& Z
7 k/ m* \# x% }9 L hr = m_pDisp->Invoke(
! m9 Q; }) {0 h. G, L* ~ pokeID,) J! I" K6 S8 B6 t8 U6 T8 Q
IID_NULL,- m& }: X" V8 A
LOCALE_SYSTEM_DEFAULT,. C: r, M. ~& ^( p" ~# K$ q5 o
DISPATCH_METHOD,4 E6 ^1 J$ a* |4 W1 c6 R
&dp,- W$ U3 w4 {2 [/ [8 M2 e5 {( K
NULL,7 q1 W: G) q7 j: I. p
&ei,$ z' W: e a* [
&uiErr);
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SysFreeString(topicStr);
+ m! r$ P1 \, T3 U; S9 Z SysFreeString(itemStr);- _0 v: n( h) I ^- h3 {- Q
SysFreeString(valueStr);; B, i8 Y/ }& N6 B& [( s
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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???8 k3 R M6 D0 |
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????1 n" x; K5 F/ ~" p, l( L
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2.这是request的程序
2 X, g0 H& P2 R# j U# C. A// Request a value from Extend
. `- H4 ^% z) F7 o//- n3 ?! L: Z4 S3 M# ^# a. V# F5 }4 V! t% R
// Initialize the variant that will hold the BSTR. Set the variant's0 V0 v) _# `& f
// type flag to indicate the fact that this variant holds a BSTR. Place the
4 V/ U/ k) z+ d X// BSTR into the variant structure. `3 S w: L* O$ H: w
) x- K9 g8 b9 o! ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: _! i/ J+ O: z0 [
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' E4 M8 r$ d$ e# l& }, I ], V/ T VariantInit(&requestVariant[0]); . a5 p6 R# x8 U. q
requestVariant[0].vt = VT_BSTR;. H5 m5 q# H+ K) |7 d
requestVariant[0].bstrVal = itemStr;1 Q; T8 v: j! ?
$ p7 g% P" p% C8 o topicStr = SysAllocString((WCHAR *) L"system");1 N, G: R% P$ \- p- E
VariantInit(&requestVariant[1]); 3 S' {. Z7 d% r S# V& @5 R
requestVariant[1].vt = VT_BSTR;
/ }% E) I' o# d requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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4 Z6 A7 |. z( V: M) r- | dp2.rgvarg = requestVariant;
+ Q+ J- h( _1 A0 k$ q5 X dp2.cArgs = 2;
1 H: V9 Y2 S0 u; u dp2.rgdispidNamedArgs = NULL;
/ h% B) r4 h- u dp2.cNamedArgs = 0;
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( X& R' u3 d } var.vt = VT_EMPTY;
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# x* B% g% V% e: D% |; G6 q; w// Call IDispatch::Invoke()
# B. k" c, B. B8 X1 W# R" K! k! _6 O; w8 Q( X- m; [
hr = m_pDisp->Invoke(
: V5 P- m* T( I* V: c& K9 m7 L requestID,. O s" K; q* n! V+ }4 y' \: }
IID_NULL,& u" E1 g: h' i- H1 c, I1 Z( T/ u
LOCALE_SYSTEM_DEFAULT,( K8 W; a! l) D, ]$ u
DISPATCH_METHOD,6 D, G0 T3 O+ L- V& w/ @" A
&dp2,
. q/ y" S+ V; O' y &var,: F0 R+ G/ b: I% k+ M
&ei,
8 |% X% K+ G0 `( d3 m, l &uiErr);2 X% Q r. M# F* A8 s5 \3 Z
# G/ j* z$ h$ C) x/ `2 S SysFreeString(topicStr);. l1 j) Q1 M" x& s8 W; O
SysFreeString(itemStr);
' ~$ O$ I$ @2 ~8 H6 F5 t请问该程序是获得extend里面的哪个值?1 A/ h( Q8 t4 H0 S# I
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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