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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:; w7 I; E4 s9 U2 C F
Name = (WCHAR *) L"Poke";* J0 s! ~) w+ X$ l% p, L
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hr = m_pDisp->GetIDsOfNames (
$ J% {+ k7 X% t0 a& e; q IID_NULL, // reserved
2 ~4 }, D; P# q. ~ &Name, // Array of names to get IDs for7 O6 r# [- a8 M6 M, m/ `' A+ T1 s
1, // # of names in the array( [( l) l) L% O9 i6 C* n* k
LOCALE_SYSTEM_DEFAULT, // System locale
' T V! p6 q( R+ K. V6 m% O$ J &pokeID); // Array of IDs to fill on output
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if (hr)$ n% H o' H$ J, c& W% B5 g
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MessageBox ("Get Poke Unsuccessful");$ v @2 j9 o6 K# j& U. Q6 @
return;2 v: u: q; d/ n0 S D# A
}
+ L- |4 k2 h" N3 |9 C1 a% O9 Q: h2 Z7 a1 {
/**************************传递数据给extend**************************************/9 t# k" Z1 d& D3 }* X/ s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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( m' a) k4 Q3 b a8 m/ ^ valueStr = SysAllocString((WCHAR *) L"1232");6 C% O8 ?+ d9 F
VariantInit(&pokeVariant[0]); 2 h" \' |5 E! w# q. W
pokeVariant[0].vt = VT_BSTR;* u. V4 i4 G4 H, v( Z+ D4 o
pokeVariant[0].bstrVal = valueStr;2 F M! n" a9 _4 L; ?& A
& _$ g' h9 G1 m7 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); V3 K* p2 H) E- r% P
VariantInit(&pokeVariant[1]);
/ d# s9 S1 ]% ^2 n5 B pokeVariant[1].vt = VT_BSTR;
; Y9 ?5 o, y8 d; |/ G$ R: r1 | pokeVariant[1].bstrVal = itemStr;) F% Z4 i, G, j) n
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topicStr = SysAllocString((WCHAR *) L"system");
% r! s; y# D& K VariantInit(&pokeVariant[2]);
# B1 S q) d T! s1 q% y pokeVariant[2].vt = VT_BSTR;
5 R2 P: a4 T5 u/ \# t! g pokeVariant[2].bstrVal = topicStr;
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9 }+ q/ ^# D" e9 U" D// Set the DISPPARAMS structure that holds the variant.
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% j4 T+ E* P4 r; J" R* b dp.rgvarg = pokeVariant;
8 K- l. r9 K' Q; q dp.cArgs = 3;+ P) c2 o: b# S2 o: C
dp.rgdispidNamedArgs = NULL;% ` G4 x3 s% }8 n1 i
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
$ R( I( N) T5 T pokeID,/ [8 Q2 Q \9 r4 d& M* q) @ ]; T
IID_NULL,) ^. t; D$ }% G9 e8 a
LOCALE_SYSTEM_DEFAULT,
r& t" V' l- B: j9 G1 N& D DISPATCH_METHOD,; P5 [, q/ N! C2 m6 k& h9 {: P
&dp,7 R! P1 t# Z7 \( g/ ] [
NULL, W8 U5 }- m& q1 ]; \
&ei,4 V* ]; K( o& Y6 C! B4 M9 W+ r8 H; H
&uiErr);7 z- s4 B+ `3 h8 F* U( Q# M2 W0 T
& B6 ^; O1 E a$ Q, u) l SysFreeString(topicStr);
# R$ s( z' t; I( a7 O+ g" E, K SysFreeString(itemStr);
6 W1 {! i$ Y2 Z( W6 r SysFreeString(valueStr);+ [7 @3 m3 J3 U$ S# e& _7 e
& N9 w7 X2 M$ J+ n2 g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???
' M6 H* ^7 ?, R% J- w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????& W( n! }, t" ^) L
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- S0 M9 E1 Q3 P6 n2.这是request的程序
5 A3 U1 a [" I3 E% _// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's Z3 C* n- Q/ u5 F U
// type flag to indicate the fact that this variant holds a BSTR. Place the
e& o$ p/ I/ f+ p. F$ K// BSTR into the variant structure.. r# V: P" X+ A, I( a% I+ R7 l: X1 }
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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' m& _) T7 s, L" Z3 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 _/ `8 J) L W- z
VariantInit(&requestVariant[0]); % a$ V1 a* H- k
requestVariant[0].vt = VT_BSTR;& S& V1 z* }$ r
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");3 W- w( C$ d: y" l' Z! J- A2 [
VariantInit(&requestVariant[1]);
) L/ C$ N2 h# T' C% I requestVariant[1].vt = VT_BSTR;
! J: H9 f/ F- M; x, s C requestVariant[1].bstrVal = topicStr;% B8 ^6 W8 C/ M: O7 ]( {9 x' }; v
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// Set the DISPPARAMS structure that holds the variant.& |3 y+ q" V/ _. }/ w9 n& @$ R
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dp2.rgvarg = requestVariant;
) a3 \0 e6 F' |6 x. [. { dp2.cArgs = 2;
2 r) P, F% @, G4 I; _ dp2.rgdispidNamedArgs = NULL;
) m) M. R+ M1 D" J l3 i dp2.cNamedArgs = 0;9 Y8 s3 }. P# d/ G/ b! Q
! k: n, ^7 ?2 I5 h% V# g( R var.vt = VT_EMPTY;3 u4 d; Y4 |" w' w& W5 C- D
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// Call IDispatch::Invoke()+ {6 T/ \. I! i1 Y4 n2 ?
$ W& i# `5 l+ L hr = m_pDisp->Invoke(
( M/ {! _- K5 p |+ i+ l1 a requestID,
/ M- [0 F% i% _4 P4 K8 P IID_NULL,9 H) o) J3 ^4 ?2 P
LOCALE_SYSTEM_DEFAULT,
7 ?& Z2 R% E1 ?5 ] DISPATCH_METHOD,* ]0 h, d- V3 ~7 k+ y3 ?3 [% l! _" M* N
&dp2,4 o, G# K9 m/ t
&var,
5 {- `( L* M+ m! c! B &ei," W7 f+ L0 @# l" `
&uiErr);
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6 K4 f r8 _8 l" a9 k; |' J; r k SysFreeString(topicStr);
8 l9 u8 m) r3 Z% `3 d; B3 M SysFreeString(itemStr);# R9 N" ]" i1 a$ Z# a
请问该程序是获得extend里面的哪个值?* o- \- B$ n/ B
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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