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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: }! l( n$ m3 _, q& ~0 g3 [0 e
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
0 _& B0 A: U+ D2 S- z; m IID_NULL, // reserved
0 d1 }: M0 w6 C2 P4 T& G0 }$ _- o0 a2 v! z &Name, // Array of names to get IDs for$ R1 u0 b. f% k" f" Q$ f5 I1 u% o
1, // # of names in the array
+ T# j% b! I3 q% p, [/ x2 n LOCALE_SYSTEM_DEFAULT, // System locale* k$ D. _$ c4 u( g- t1 y$ o
&pokeID); // Array of IDs to fill on output) l8 x8 a8 C! v! y0 e" w
\9 A; q& P3 \% A+ g9 A* M$ k- Z
if (hr)
- q3 D& h: \$ Z; j# C" b {
; z# H. ]) H3 g MessageBox ("Get Poke Unsuccessful");
. b! ` x# I1 \* [ return;
2 o& [( O# p7 w3 S }
1 a$ r l. Y$ n: |& u
7 O ^- x9 o& ]6 z( [; b, }/**************************传递数据给extend**************************************/& ^/ \/ d# Z ^/ c
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
+ t" |2 J' E+ `# e0 Z) U 8 r/ I$ V1 o4 U
valueStr = SysAllocString((WCHAR *) L"1232");5 S6 @$ a ]* l2 @; M$ b
VariantInit(&pokeVariant[0]);
q8 ]; O0 @1 ~+ {* T pokeVariant[0].vt = VT_BSTR;
& n4 ]- U3 |3 {; Y) y; w" \ pokeVariant[0].bstrVal = valueStr;& e F- ~5 k2 a% z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ V! O L) r ]: x) y; j \
VariantInit(&pokeVariant[1]);
1 y: R& s$ Z1 K R pokeVariant[1].vt = VT_BSTR;
F: F, D Y) V/ h+ G) L! o pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");8 Z$ H# t6 M- H! m$ x+ n+ {
VariantInit(&pokeVariant[2]);
3 e, P5 \9 t4 i) D$ ?$ R) h pokeVariant[2].vt = VT_BSTR;
' L5 I& k8 l) J, t8 I6 F* N pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant. I4 K; F+ ~$ T. a
$ |; T, L% \' V dp.rgvarg = pokeVariant;! ~6 E3 u# {9 t; `9 R, s, K. b
dp.cArgs = 3;
. D- K( q6 z7 ]2 p dp.rgdispidNamedArgs = NULL;$ X+ L- Q1 L* g3 p' v1 @! o1 e
dp.cNamedArgs = 0;. q8 X. ?: @# D: W3 k
! u! j: C6 T2 ?% ]; F// Call IDispatch::Invoke()
% Q0 q* Q( \4 m; T2 q$ L, K+ v: f) y4 u0 B% \
hr = m_pDisp->Invoke(
" h$ S3 r$ X+ k: }9 T pokeID,2 b9 C. f) j1 J) ^9 A2 |0 i
IID_NULL,# U9 n9 o* \3 T* G" o
LOCALE_SYSTEM_DEFAULT,. S; `, ~$ r, d- i
DISPATCH_METHOD,
' U3 U3 o) r; D) h7 C; x &dp,' T+ o, Z: \& C3 A
NULL,
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&uiErr);4 Q. b" F9 A) c- H' @0 ^ C
: E- a# I" ^$ g* h2 o
SysFreeString(topicStr);( D+ e* H; l M+ w, Y) k' Y
SysFreeString(itemStr);' t: Y" F! ^5 O0 n0 ]
SysFreeString(valueStr);7 k& C* }4 ?+ W! z( Z7 n" [
) n- L/ b. I& u6 h' ?
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???7 W* J+ D. F# k- S
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????! g3 u; \ B& O: s; }8 K/ x
f6 g' u( i# P$ h. I: C
( `3 L8 N7 f+ u t# ]
2.这是request的程序
. j b% _6 b7 y" Z% m7 G% a// Request a value from Extend
+ @8 @' K3 t& @: V//
5 W) x. k) {% s5 M. ?% }. z! k8 i// Initialize the variant that will hold the BSTR. Set the variant's. P8 T5 @, a; ~4 B
// type flag to indicate the fact that this variant holds a BSTR. Place the
7 V7 s$ q/ z6 A. v( p// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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, F5 J# J, G7 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
2 e* [; E7 N2 a; B' @/ O% ^3 t VariantInit(&requestVariant[0]);
: F& _) y% U% R& N) X9 U. z requestVariant[0].vt = VT_BSTR;
, ?5 M1 C5 `6 p; q- t requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
+ [% x9 t u6 H$ v# x+ h+ j. {& y VariantInit(&requestVariant[1]);
. b& k/ `/ m5 [0 m( _3 Z: S& _ requestVariant[1].vt = VT_BSTR;
+ q8 D4 I6 {& Y. \, H& C0 ^3 \ requestVariant[1].bstrVal = topicStr;# r! ^+ L/ S# N+ _6 Z
7 l9 U! W9 E. l. S/ I( W5 Q7 t$ d u// Set the DISPPARAMS structure that holds the variant.
# S0 \8 n$ K6 w) G
) U6 [3 J: @8 w dp2.rgvarg = requestVariant;
# |; f6 x) y" p5 I dp2.cArgs = 2;6 p! O7 A& W( `2 K
dp2.rgdispidNamedArgs = NULL;
# l& w; m3 M" q6 D dp2.cNamedArgs = 0;, s* J, j- _* Y6 Q1 Z }: ^# `
+ K+ c1 F2 p# y* }, s' x- A var.vt = VT_EMPTY;8 Z1 w7 w% I: M' ], E
3 y# n' ^6 \! ~8 L' w9 o! f, |// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
( o# D& S0 w) |1 R# A& z requestID,, A/ u0 S" O7 p4 U9 \4 y9 z
IID_NULL,. |. F H. Q$ T" f: ~# D& W
LOCALE_SYSTEM_DEFAULT,/ o {+ F5 x2 X$ H( o) u3 b0 V
DISPATCH_METHOD,
$ f D" Y8 _! Y8 X7 O/ T: J &dp2,) u$ H2 _6 h/ ^1 H/ c9 ^
&var,
( b. k$ O0 b q" L* H* C f6 O9 I &ei,
, [9 X9 X H! R# {/ X( ] &uiErr);8 |8 k7 O( G; t5 g4 t
( ]4 T5 U! `" G: G- ]$ s SysFreeString(topicStr);
: @7 U& q( j: c SysFreeString(itemStr);
' k1 T! N' q7 j请问该程序是获得extend里面的哪个值?: o* M/ r1 x% U# a
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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