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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:# N, A! G3 [; u6 ^. R
Name = (WCHAR *) L"Poke";
7 L$ p6 {) K4 Y! p5 c" G
4 L$ B6 T* t/ S0 I; [0 l hr = m_pDisp->GetIDsOfNames (
) G2 K; V. E/ b1 P8 P IID_NULL, // reserved& S) }. H, C% C, A, q2 T% n* d
&Name, // Array of names to get IDs for, G/ Q$ @/ W; @: [: m; E1 p! _7 Q" r
1, // # of names in the array7 j% G! i( k) G% c' Z4 j8 D' O* M
LOCALE_SYSTEM_DEFAULT, // System locale
3 M% z/ z# C1 o6 ? }5 ` F &pokeID); // Array of IDs to fill on output0 e" ^" a, j) D7 w6 r
+ F( Y1 D, N8 {* o
if (hr)) d4 }! v0 `- n
{
$ p" D& {9 ?& @! O MessageBox ("Get Poke Unsuccessful");
1 r9 Z4 ~! W7 ~0 X+ y return;6 G' H% S3 D& Z
}
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# V% z; X8 N: c' |# H- x0 M/**************************传递数据给extend**************************************/
- ]- [6 f: c% K/ C: ?, Y. H pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
& M& d; o6 d+ L' s! P: D% }
2 P, S$ {: j2 x: {3 n: ^* {( f valueStr = SysAllocString((WCHAR *) L"1232");" {3 E% W& L% X' D; t
VariantInit(&pokeVariant[0]);
5 ^( `. _6 ] s( ~2 r L a ~5 L pokeVariant[0].vt = VT_BSTR;
4 i2 W! x! z: t pokeVariant[0].bstrVal = valueStr;2 O& M |+ s w3 U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, ^: \3 _" o) k. r
VariantInit(&pokeVariant[1]);
* `1 s7 l9 p M7 S9 l' d, n pokeVariant[1].vt = VT_BSTR;
- C* F6 V. `: N7 D$ V pokeVariant[1].bstrVal = itemStr;
! ~8 D, ]0 |; G, N8 \3 ~
6 S( M3 A: a0 e9 o) ?+ s2 C5 y topicStr = SysAllocString((WCHAR *) L"system");3 U' H/ h" x& p. q& ?4 |& }: Y
VariantInit(&pokeVariant[2]);
4 K. t3 H) } R& @ pokeVariant[2].vt = VT_BSTR;4 {% g) W6 }, _7 Q
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.! p3 u% G; n" U) X
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dp.rgvarg = pokeVariant;
$ H/ p4 R9 K9 X# {/ x1 v$ o dp.cArgs = 3;0 O. i8 w. o- y9 U6 t
dp.rgdispidNamedArgs = NULL;9 M2 g4 k, S& a: ~) ]" [! [8 h) O
dp.cNamedArgs = 0;$ e1 `" F& j# B. y4 o
" ^! i: C7 a4 U. o. K# A) Y
// Call IDispatch::Invoke()- ]6 F: d% O* g9 g: R8 ^
1 W* J) l# Q; M# y3 T2 E
hr = m_pDisp->Invoke(
1 `& c% j7 w" d' I pokeID,
1 d7 E/ y% U, v# J$ _. C IID_NULL,
" M1 N! o5 R+ @: [0 q LOCALE_SYSTEM_DEFAULT,% P. c. ~3 n( z7 m1 J. v
DISPATCH_METHOD,
$ |% n" b; s2 I3 O0 S8 B &dp,, h; d2 S- |9 q T! v
NULL,- |; G" U! ~# h' t% b" M2 I
&ei,2 }& p0 O2 D4 p% R
&uiErr);
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SysFreeString(topicStr);8 p+ z/ K9 |; g0 B+ K6 Y8 l6 h
SysFreeString(itemStr);
j$ `; t: L0 @ ? SysFreeString(valueStr);
+ M7 P8 N6 }# r- V
: E& E7 N" U# |/ q4 ?4 l- L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???
, D0 u2 [/ r, {# a0 Y9 ~3 Y1 {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????
- J5 @$ K. O7 n! z/ R0 i$ e2 N/ }0 y) o/ O# D4 k
k* r5 ~" q$ B: ~8 T" O- I
2.这是request的程序
: A- s) s2 w/ i// Request a value from Extend
! B7 w4 u: l+ c9 c! U: W//
- O4 \3 ?0 `$ M1 k& b& O// Initialize the variant that will hold the BSTR. Set the variant's
) T! _& H6 h3 R$ V Y+ x8 s// type flag to indicate the fact that this variant holds a BSTR. Place the u9 @# Z" f- v! K! Z% t' O0 G
// BSTR into the variant structure.% f3 g0 L/ P$ h9 e) \& ]# z, Z
; i1 A4 C, q0 }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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5 L. d$ P8 f' O4 y$ J9 J% X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
+ N# i* P+ V/ ?/ T6 A" ]! s$ l, F: d; i VariantInit(&requestVariant[0]); / x' @6 @8 G+ y N; j5 g( j E
requestVariant[0].vt = VT_BSTR;
7 n, b, B; `3 f/ S. W7 f% Y requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
8 M" ]6 d/ t2 w6 |; P t# Z6 _ VariantInit(&requestVariant[1]); & R4 p- }9 ~8 h1 @
requestVariant[1].vt = VT_BSTR;" r6 l. g# ~4 m! u
requestVariant[1].bstrVal = topicStr;
$ {! t& L. {: E0 S3 w
Y; D( f. X* S- X: d' S// Set the DISPPARAMS structure that holds the variant.6 o) Q" |) ~' `- d" a) `% k- U9 w
! n* v, |9 t' F
dp2.rgvarg = requestVariant;
* ^1 D5 U5 \) t3 ` dp2.cArgs = 2;" l- l3 d0 z2 f6 X$ {
dp2.rgdispidNamedArgs = NULL;
* S" N- A! \/ `$ j c% V7 u, M dp2.cNamedArgs = 0;- X- V' S) [. {- N1 j
$ |9 g% b" F; K' y/ H# b$ V
var.vt = VT_EMPTY;
; T/ O* K$ ]% w" U% @. \
8 v4 t2 F; g: g- l* ?3 q7 f: N// Call IDispatch::Invoke()9 I0 Z# P8 Q8 k
- F- o" f# s& ], `- \) q$ v; @4 v# H
hr = m_pDisp->Invoke(
) @" G8 N* u9 _4 |( \8 L requestID,
0 A1 @8 P; [3 w3 J* G# q$ Q5 b IID_NULL,5 p; U& e% |: t
LOCALE_SYSTEM_DEFAULT,
6 c7 R9 h+ {8 T% } _$ ^. j, X% f4 t DISPATCH_METHOD,: }- n6 b, E" |/ |7 b4 D
&dp2,; B3 O9 I6 z" \# h3 Y/ A# P
&var,
y6 `# n$ J* B. N, ] &ei,# U( e- ~/ B1 r) u/ @; U0 Y* e
&uiErr);
6 Z6 i7 I: X- n- j+ n& ?$ p
1 i/ p: \9 X* Y. |9 a7 f SysFreeString(topicStr);
V9 J: f F8 y6 B1 i SysFreeString(itemStr);1 g! W* A0 ]+ J/ G1 |
请问该程序是获得extend里面的哪个值?
8 R( q( q) `; n9 H" C* J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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