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： , Y- j9 z+ Q$ G* Y" mName = (WCHAR *) L"Poke"; % t; y# M- j( [' Z5 t 5 d/ |! A0 k# h1 l8 j6 B) X/ a( i, z
hr = m_pDisp->GetIDsOfNames (+ a5 n( G- V* ?9 i" V- Q+ i3 L
IID_NULL, // reserved 8 r0 ?$ L6 F2 m! U. E& U &Name, // Array of names to get IDs for& J: F( K, x0 e/ Z2 e, _9 _+ V
1, // # of names in the array 2 G$ v; C' ^0 C+ N% ?* y' ?* J4 C0 H LOCALE_SYSTEM_DEFAULT, // System locale% d' m* ~9 N3 E V+ e) o
&pokeID); // Array of IDs to fill on output5 j' y' P. }: P m+ W' a
. e$ ^! j/ L, U2 u& R if (hr)# @ H5 i, \) M
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MessageBox ("Get Poke Unsuccessful"); + F6 p9 I! b, [ return; 3 z8 ]6 V5 r1 f' K }2 j L. z( A6 p0 a: A" u' W7 S& j
, K/ `4 s) Y C/**************************传递数据给extend**************************************/0 Q' K! R Z% P2 ` [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & G& \/ P. [! Y' m2 n. s3 ^ ' `6 w7 O( l" p( {4 d) u
valueStr = SysAllocString((WCHAR *) L"1232");2 u6 H9 R8 x' ^
VariantInit(&pokeVariant[0]); 7 ^* {7 ?, D8 }" | f
pokeVariant[0].vt = VT_BSTR; # X7 j, O b+ _8 c pokeVariant[0].bstrVal = valueStr;( N; y, P& D5 u
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& F5 p) \& V0 h
VariantInit(&pokeVariant[1]); & e' a3 Y* M+ l
pokeVariant[1].vt = VT_BSTR;9 }8 _7 k$ a; `) W
pokeVariant[1].bstrVal = itemStr; " U1 }& ~, v3 C g- B" H' P2 h) I/ K- d1 f; ]% c2 v' A# F# u6 o% `7 Q
topicStr = SysAllocString((WCHAR *) L"system"); 6 J% H s/ |) z9 n7 o VariantInit(&pokeVariant[2]); ) \8 X( ?1 I, b+ b9 o4 } pokeVariant[2].vt = VT_BSTR; 9 x8 [3 ^1 N. q. M pokeVariant[2].bstrVal = topicStr;) R5 ~9 i0 ^1 }/ f1 M) O7 b
; N7 M1 b. c, A0 C* Z' H// Set the DISPPARAMS structure that holds the variant. 2 Y5 Q, V4 A4 v3 m 5 k3 X, L e. B! C. l* | dp.rgvarg = pokeVariant;5 S; O+ @; r: {
dp.cArgs = 3; ; k9 j2 `5 K5 u* C2 f, d1 e: _$ e" D dp.rgdispidNamedArgs = NULL;) l1 r4 L/ Y7 a8 F, j/ s$ X; J
dp.cNamedArgs = 0; . k! |+ }* R: H, p2 G. N# ?9 V) C1 Z( h+ H2 P$ @" }& o7 i& @
// Call IDispatch::Invoke() M: {' X8 V" l2 r3 D 5 L$ J% n0 t1 U! L* g9 D hr = m_pDisp->Invoke( - q. k5 A& s* r0 [* L pokeID, ; o# l3 T3 K2 B' `& I/ I7 | _& o IID_NULL,, D$ g4 n7 | o% @/ A+ Q; `
LOCALE_SYSTEM_DEFAULT, . l& q' z% _9 i0 ]* P DISPATCH_METHOD,1 O0 R, A* C$ [( T# P
&dp,% k/ L7 x4 y: D6 u
NULL, & u: ~* |& y. G2 K, [1 W; O' c* { f &ei,( d s6 F6 E, D. H: |
&uiErr);8 `7 e4 ?( G1 k% Y. k: d& O
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SysFreeString(topicStr);# P3 w* e0 ^' F* B
SysFreeString(itemStr);7 A2 L j6 w/ z r3 E
SysFreeString(valueStr);$ y# T" X* F$ x8 l
3 K3 R7 C1 y, j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？？？2 {% r7 f" U; E3 ]9 J% 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？？？？: c' J$ @) g* \/ I
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2.这是request的程序 6 n: v. G( ~- T9 {: @4 _7 \// Request a value from Extend 5 A( e. ^1 ?+ O2 M8 |3 a, R- z& ?//) i) q( H) ^+ ~9 J4 R0 B( |# {& w
// Initialize the variant that will hold the BSTR. Set the variant's " J$ k. N3 n6 i5 h; E, F// type flag to indicate the fact that this variant holds a BSTR. Place the& Y+ W N/ m1 @. X9 J9 o8 Z
// BSTR into the variant structure.3 _& _1 q3 B$ I( A
* ~9 @0 C/ N+ |; o3 o7 y: O, A& Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 o t& E0 X+ q1 i {3 G4 i# |# e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( b+ c' X7 T0 l+ @# P" s VariantInit(&requestVariant[0]); * U: p# d* k% `9 C. j+ J4 X/ q
requestVariant[0].vt = VT_BSTR;( X+ o% t/ S% B9 J. {: M/ D ^6 _
requestVariant[0].bstrVal = itemStr; : X n" x5 U) D+ o/ e& H. X3 ?4 P0 U: l, Y
topicStr = SysAllocString((WCHAR *) L"system"); 6 ~5 u k( B% l! l9 h) d VariantInit(&requestVariant[1]); # Z" d; H4 r. s% H5 I) j! Y9 c
requestVariant[1].vt = VT_BSTR;6 K3 \4 x$ d. ?+ g" f
requestVariant[1].bstrVal = topicStr;' v1 J# _# X6 N- x# M
8 l4 C4 w: a) ~6 _$ f- M! R// Set the DISPPARAMS structure that holds the variant.$ D! N+ s8 _2 e5 [. ?6 I- Q. Y: L
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dp2.rgvarg = requestVariant;9 y6 J3 T h. z- ]7 P( I5 D
dp2.cArgs = 2; 6 c5 @2 r) j# @ dp2.rgdispidNamedArgs = NULL;* H) a: [6 D- j, ^8 {# F
dp2.cNamedArgs = 0;) t5 G+ E$ x$ a* t; M. K9 \
# f. K2 x0 e- Y: C var.vt = VT_EMPTY; " H5 j% l8 |: H+ e4 e . g8 J% K7 ~7 Y- z; p$ |) v// Call IDispatch::Invoke() ' i1 v! T3 ]; ?4 v2 q ( G% g$ J, `5 s9 `) x hr = m_pDisp->Invoke( B7 M6 L2 l0 L$ R: V
requestID, ' H4 ?2 f2 h$ [5 M- j; } IID_NULL,8 r$ y4 q9 l" F+ ^
LOCALE_SYSTEM_DEFAULT, ?5 F( [) N- a2 x0 K9 d7 O$ K
DISPATCH_METHOD, ' O, R' u$ ^9 l2 D- d3 ~1 Q &dp2,* a: p4 f, f# i( y* F W
&var, 9 V9 p% A1 f' I# F &ei, 7 E3 Z) [6 ?$ |" {) J' G+ _ &uiErr); 9 }! B O, M5 w: v 8 P5 w# x$ w: W SysFreeString(topicStr); : ~3 u; R# r Y" n9 O SysFreeString(itemStr); 6 T( K- ]0 I7 {$ T请问该程序是获得extend里面的哪个值？' p8 x2 k7 ^% X- X% m
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？？？？
发表于 2008-11-25 19:37:03
