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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：
* I; H& ^5 E% ZName = (WCHAR *) L"Poke";
4 ~" j. A( m% m+ ?
7 I9 k- s! ]- a/ y$ B8 z) N/ x" N hr = m_pDisp->GetIDsOfNames (
: ?4 M) c! ~6 A2 x IID_NULL, // reserved2 V7 `+ Q7 Z4 P/ U% H
&Name, // Array of names to get IDs for
9 {$ G( }* `/ {& x* l3 E 1, // # of names in the array- Q- O; P+ \9 x: {
LOCALE_SYSTEM_DEFAULT, // System locale, k) ?, J) ^0 E9 p1 M
&pokeID); // Array of IDs to fill on output
+ P# ^( `1 v% k& M
5 r7 o# i5 M$ J, U% U if (hr)
3 H! t9 e! T3 F( Y$ D2 V5 \* C {
0 u/ [- `$ z5 A" l3 G) I MessageBox ("Get Poke Unsuccessful");3 o. A0 q) J& V. ~ k9 }
return;1 j) E7 n1 ^% g" D# A8 f
}
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/**************************传递数据给extend**************************************/: ]- m" c' Q* J4 _9 E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 `7 x2 h! q: O5 N( x; L
6 G3 A' g4 P0 _ C4 n2 Z
valueStr = SysAllocString((WCHAR *) L"1232");
7 o7 i8 E+ ?% O" Q VariantInit(&pokeVariant[0]); ( c5 e. m; }7 i- v M
pokeVariant[0].vt = VT_BSTR;
# ~% ~- {! b0 L" q( Z pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 x/ g' e+ w4 T. R; H$ e* T
VariantInit(&pokeVariant[1]);
3 L' H6 a, K6 m8 M G' w pokeVariant[1].vt = VT_BSTR;
+ J# b5 U& l( h- w% G4 U! | pokeVariant[1].bstrVal = itemStr;
" `$ w( p2 w& s5 {0 u' b* M2 ]
topicStr = SysAllocString((WCHAR *) L"system");: A6 J9 |+ k* t1 c+ x
VariantInit(&pokeVariant[2]);
- u7 H& l; @ }( m0 w& _* D pokeVariant[2].vt = VT_BSTR;
5 S \8 w9 @5 k pokeVariant[2].bstrVal = topicStr;& k9 P( b" E/ N( s
( ~% o* m/ W: {1 Z4 a// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
9 U4 j# H5 O+ `7 P! ]& D* s dp.cArgs = 3;) r' \" D+ z' c7 r% p( x
dp.rgdispidNamedArgs = NULL;1 x/ M0 N, P' U/ t2 m. \0 V
dp.cNamedArgs = 0;
5 u4 D# @ X3 y4 {
. |/ f1 p( u3 I& A// Call IDispatch::Invoke()
. V$ k" E, r; V7 ?5 i* t+ e3 Y
5 n7 @5 @* k$ x- M0 X. w hr = m_pDisp->Invoke(8 a( |- k2 z! t
pokeID,, ?- U7 ^) r% q* {3 L0 x3 k
IID_NULL,' M1 L2 r! O# p' `% W
LOCALE_SYSTEM_DEFAULT,2 G" C6 N* k8 m+ J8 L9 c. N
DISPATCH_METHOD,. O5 ]+ x- H, \. P7 g7 m3 r# }
&dp,2 I$ V! g0 B: b5 B+ q. X7 N
NULL,
- X- X5 `( u% e" y% `5 t) x &ei,' T: W2 x* N6 Q
&uiErr);2 W5 j% R7 W$ Q- ?6 L6 V* W
+ H! f- i2 I9 A, \5 ~- t& [
SysFreeString(topicStr);
! R' M; W3 \0 ^2 T SysFreeString(itemStr);
9 _) ?% {% t8 T7 y6 l8 C4 s3 e b SysFreeString(valueStr);6 U, P' M) t. s1 U& k
8 ?# ?) A- q* ]# u9 Q
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？？？
; d) f/ w. u6 k8 V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？？？？
0 L/ E8 H- v2 k! N, ]3 G
. u/ A4 G; Z1 Y: b" m* y- r- c1 U4 g5 n3 O3 P# ?
2.这是request的程序
! }% B' p' Z1 }: v+ t. D// Request a value from Extend. h, c0 [+ e1 ^& N4 K8 a6 V- L
//
7 O, j: W( T0 y, X& i8 C// Initialize the variant that will hold the BSTR. Set the variant's
3 G. h9 q' t5 L* G7 f, l// type flag to indicate the fact that this variant holds a BSTR. Place the
4 s0 j4 M5 |" `8 p0 I3 }* `4 f// BSTR into the variant structure.1 c- r; \' K1 v# e1 Q3 w
# F- W/ |- ] _ ~6 S' M
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 e) d3 o1 O/ y' L8 T |8 A/ K& M0 \
; ?7 K! I/ a; w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 v- K& z. S& a; z VariantInit(&requestVariant[0]); 3 ~: I5 n7 q G( N
requestVariant[0].vt = VT_BSTR;9 H z" w6 x$ r. J. v$ W+ {
requestVariant[0].bstrVal = itemStr;
8 C! p# @$ S+ [: q9 Y9 j% M! @) Z
8 K3 k( j- r1 k; _& z; s: A topicStr = SysAllocString((WCHAR *) L"system");) F6 f9 O" u, @
VariantInit(&requestVariant[1]);
3 `% a0 }: g' ?- X+ P' X$ E3 | requestVariant[1].vt = VT_BSTR;3 \- O( J6 u6 H/ d j! e
requestVariant[1].bstrVal = topicStr;
) `4 g; U; p- k1 s/ v' L3 r) W& P( `% V1 b7 R* o
// Set the DISPPARAMS structure that holds the variant.
! ^. a+ S- I" u9 A% Z8 F0 ?: ?2 {: k5 |
dp2.rgvarg = requestVariant;
2 e; K! b/ A1 ~: h3 C, D dp2.cArgs = 2;5 \& a( r2 }0 ~- |; E7 d- R6 \8 j
dp2.rgdispidNamedArgs = NULL;7 I3 O( X) d1 Y; _
dp2.cNamedArgs = 0;( u& h/ U9 }+ @, n4 U* U: p0 G4 |
4 o& q1 C% D/ N% h1 F
var.vt = VT_EMPTY;9 ?$ i0 b5 Z2 l% J! C4 A
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(# `1 f1 ?8 S/ f7 \
requestID,: K- i! D ?- v) _1 S7 I% F' {- _
IID_NULL,& }4 D* A) i$ d9 I4 ?& ?
LOCALE_SYSTEM_DEFAULT,; O# h. {& f$ v0 j
DISPATCH_METHOD,* t& D3 O" _( ~& p% x& r B' a
&dp2,
/ A! F3 S) V/ R1 T &var,) D" t) ` A: Z! Q3 H' |7 S
&ei,
v* w4 E% O5 \( A &uiErr);
$ W1 P( P9 w. w) d( u' P
6 @7 H! D" Z$ Y* K# t7 B SysFreeString(topicStr);7 p* P ~$ T* Y
SysFreeString(itemStr);6 S+ R% l) J+ Z7 K. ~3 J/ d
请问该程序是获得extend里面的哪个值？: K/ p! S3 _2 F1 ]
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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发表于 2008-11-25 19:37:03
