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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:# ^; D! [2 Z! p$ d+ F
Name = (WCHAR *) L"Poke";$ N3 p( a, A" t6 [2 r7 B4 {
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hr = m_pDisp->GetIDsOfNames (0 ~+ ^* V8 P, ?* a( F9 V
IID_NULL, // reserved) @+ }/ V' A' h- b& N9 E
&Name, // Array of names to get IDs for
7 o2 v+ ]+ Y* B+ B 1, // # of names in the array
5 j9 m, i* p7 _; O1 u LOCALE_SYSTEM_DEFAULT, // System locale5 k% f W. l7 n# h. h8 ~
&pokeID); // Array of IDs to fill on output. K$ q: B" y! k- s, Q3 R6 }0 O
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if (hr)
0 Y$ X! y$ m! l {
6 u: c* F6 {; V U" C F MessageBox ("Get Poke Unsuccessful");
, Q1 B8 T" m5 p$ F2 R return;
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6 T& t1 M) Q( f, D) C, L2 b/**************************传递数据给extend**************************************/
' }4 o! a& C; z- P7 m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
* ]/ |' G1 H' p% g) F" x
2 C( ?5 L a0 |$ f3 } valueStr = SysAllocString((WCHAR *) L"1232");
+ W/ Y, q+ }$ b$ t, m VariantInit(&pokeVariant[0]);
1 M5 y* \* D) n* ? pokeVariant[0].vt = VT_BSTR;5 d! F7 W* k4 G& f3 j
pokeVariant[0].bstrVal = valueStr;
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6 B9 w$ f/ C! r8 c+ E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 G& V* J! t$ H% B9 R6 e# s VariantInit(&pokeVariant[1]); # `: ~) o! c& S3 v- m( S' ?' c, u
pokeVariant[1].vt = VT_BSTR;
+ b2 I" ], ^" r% P- O pokeVariant[1].bstrVal = itemStr;8 U9 z1 K8 I0 r7 \' s1 `. m; T4 Z1 f) O7 C
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topicStr = SysAllocString((WCHAR *) L"system");. N8 |$ R B g" N4 h% V4 \2 a# `" s
VariantInit(&pokeVariant[2]);
% h5 A3 Q0 s0 b" Y$ ?# K pokeVariant[2].vt = VT_BSTR;
& n+ }" I! G$ f; b pokeVariant[2].bstrVal = topicStr;
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5 E6 T# d4 T# C3 t7 B3 S0 W// Set the DISPPARAMS structure that holds the variant.
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& m4 ^& B: G# E: u* a, M/ ? dp.rgvarg = pokeVariant;
! L' k$ R( N @+ v3 A: | dp.cArgs = 3;8 {+ b/ {4 q" I
dp.rgdispidNamedArgs = NULL;
# ]% Q7 G V; Q, r dp.cNamedArgs = 0;
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" c% r; ^5 V8 ?' x F// Call IDispatch::Invoke()0 L& o3 m7 n6 K, N8 d3 G# J
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hr = m_pDisp->Invoke(
/ {& i( Z& `3 H1 b% t1 R pokeID,
+ f0 F6 Z: v" j/ {6 L: [' b IID_NULL,
9 [: W x8 O$ v6 e LOCALE_SYSTEM_DEFAULT,, G' G- F& P. b/ a- I
DISPATCH_METHOD,4 ~7 }4 q- ]& K; g! o! i6 k
&dp,
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&ei,' \1 b* w0 i/ U4 c
&uiErr);* Z' e5 F- C# u
1 V+ J" w4 g) q& a: } SysFreeString(topicStr);3 Y C3 d; l; ~0 M0 d# L3 u) C. X4 g
SysFreeString(itemStr);
5 y7 X6 H0 L" R, C; X SysFreeString(valueStr);
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! V) b# M; ]& E. \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???. P6 N L# l4 D, |& O
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????
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2.这是request的程序
" z$ h9 x1 c" \: G9 u& @// Request a value from Extend
( Q8 j3 c! b4 {3 _4 Q- R: R//
/ Y0 t; `" x0 z9 V// Initialize the variant that will hold the BSTR. Set the variant's
2 ]6 l6 Q% ^8 z4 i9 X% ~// type flag to indicate the fact that this variant holds a BSTR. Place the- @4 b5 F0 G. `' K1 y' w! L
// BSTR into the variant structure.2 f* g7 I. s& M/ U" u) A' }
# @4 X5 v9 r2 }8 R" f
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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" { ~7 t8 H+ H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# e6 G& H* O6 a0 g5 n* [3 I8 J VariantInit(&requestVariant[0]);
( h7 k) u% J% Y H9 [7 \ requestVariant[0].vt = VT_BSTR;. |. K3 y6 e$ R1 \& T% K* l0 |; n0 l
requestVariant[0].bstrVal = itemStr;0 P0 u1 z! H& U+ o- h2 c; w
% h! e6 o; {* W topicStr = SysAllocString((WCHAR *) L"system");8 P4 y3 ?$ |$ x1 Y4 U% Y# H
VariantInit(&requestVariant[1]); # C" f% Y% n( ?6 c
requestVariant[1].vt = VT_BSTR;% u& n0 B* o' R* T4 c
requestVariant[1].bstrVal = topicStr;& _$ Z% c8 @" N7 K7 `- b1 S
, p3 @/ U& u5 M0 k) w* c0 X// Set the DISPPARAMS structure that holds the variant." Q9 S1 {4 v$ R& Z9 y
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dp2.rgvarg = requestVariant;
4 s! y- r/ K7 U7 l; {0 q dp2.cArgs = 2;, ?+ j9 {' h$ S
dp2.rgdispidNamedArgs = NULL;- m# C8 q N+ |) r' O$ l
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;5 Z$ w" Y3 Z7 L. k
# [6 m" Q4 Y* s
// Call IDispatch::Invoke()
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5 a: o2 N* e5 S. j; `! a hr = m_pDisp->Invoke(
c0 Q- z( S7 R* U6 \8 p4 w requestID,
( k* Q4 `2 q- Q3 F% g. F2 O IID_NULL,
. Q. H/ |: V z LOCALE_SYSTEM_DEFAULT,
2 S2 q; l% K: m" @! s DISPATCH_METHOD,% A2 O3 q1 l9 p
&dp2,
1 V0 f1 G; ?' U &var,* g$ q/ v3 Q7 d P7 G0 P5 {
&ei,
o9 _( J7 l& o; S7 d0 Q/ X &uiErr);5 Z+ M0 _* T, r6 {
- k2 J0 z+ w6 j4 U/ c) D- Z* F SysFreeString(topicStr);
2 n% G) n# G/ S SysFreeString(itemStr);. W* |1 l% l$ J z8 A; E" X3 s
请问该程序是获得extend里面的哪个值?
/ g; u, G Q A4 {! U& r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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