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: 9 q, b( h( n( d: j$ y/ i" [5 z+ D6 ?Name = (WCHAR *) L"Poke"; " N+ K8 x- \3 D; f2 I- Z4 C ! T. U: N# E: ~4 U k) [
hr = m_pDisp->GetIDsOfNames (: E$ Y# G. m9 r8 u( t, }. [
IID_NULL, // reserved & S( T* k& h9 f& `2 z2 f* k7 N &Name, // Array of names to get IDs for7 n: X1 g/ h% | @. |: N: y5 [
1, // # of names in the array* U) w' B0 w) j; g+ B
LOCALE_SYSTEM_DEFAULT, // System locale# M, }+ a( s9 i1 y% G2 r. [1 s0 L
&pokeID); // Array of IDs to fill on output & g( Y2 o# h) |- w 4 ~2 V, h( z* @
if (hr) 7 n- V3 g. ?* c! r+ K' {7 F# h6 n {6 ?# y0 }( {4 r
MessageBox ("Get Poke Unsuccessful"); 3 P" P1 Y! y6 G B8 E L: C$ g return;- |; T# X$ D9 `& |) R! l
} 2 {$ j+ u% T6 q' Y: l4 n7 |6 [8 ~& K4 y3 ~6 [% y
/**************************传递数据给extend**************************************/& n" \3 S& E* w9 A2 W' R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 u: A p* u- C; W7 H ?
. K2 h2 Y- D# H) }4 t valueStr = SysAllocString((WCHAR *) L"1232");$ U* x. j. u; _" [
VariantInit(&pokeVariant[0]); 1 l: ]% r1 }: I) _8 S+ P& p pokeVariant[0].vt = VT_BSTR; S/ x0 ~4 ~4 F
pokeVariant[0].bstrVal = valueStr; ' L( ^% W( C3 R. Z9 ?! d : r. ^: s& E5 J# X( Z5 b* D! g( | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- b' X+ E9 x- W. |
VariantInit(&pokeVariant[1]); ! q$ R/ C3 q' N$ B pokeVariant[1].vt = VT_BSTR;4 q9 s. m3 z7 S9 C1 c2 m
pokeVariant[1].bstrVal = itemStr; * H! i& _4 M% X3 Y6 K/ y; X# G+ @% ~8 @$ e
topicStr = SysAllocString((WCHAR *) L"system");! g. [* R3 Q7 d7 Q$ @+ t6 L, y
VariantInit(&pokeVariant[2]); $ X9 W& I1 `+ i8 O- [6 }; } pokeVariant[2].vt = VT_BSTR; 4 u: I, O- q/ }& y: K8 E( y+ P1 c pokeVariant[2].bstrVal = topicStr; ) B/ A7 a5 I* T$ A" i( Z* D0 S* p1 K" G
// Set the DISPPARAMS structure that holds the variant. & n0 A$ N6 i' O0 R. X% v4 U9 k1 Z; W6 W+ i7 |' T( Y; |0 ?
dp.rgvarg = pokeVariant;% E9 W- _5 p7 H) r
dp.cArgs = 3; . \' ?% F/ j" K6 n" g6 a# T dp.rgdispidNamedArgs = NULL; 2 z. I. f3 f6 q5 } dp.cNamedArgs = 0;$ E7 e! `4 l$ y
( v) W5 h) l* t8 f- k; G2 B// Call IDispatch::Invoke() J/ }. }9 v9 B8 o3 i. ~8 n" \ r
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hr = m_pDisp->Invoke( # w! m8 B) }& l" O' l5 s pokeID,; c% E& Y0 B8 R r* B% p
IID_NULL, Q6 r, T0 E0 h" d
LOCALE_SYSTEM_DEFAULT, 0 h |+ M2 W% V6 a0 i5 H# g1 A DISPATCH_METHOD,* p0 E: ~6 P" C# d
&dp,- |0 |0 v% z3 ?: e: s
NULL, 2 D+ U; j0 E* R- C7 c" [- U6 ?& ~ &ei, 2 K: W. V7 c. d, i &uiErr);9 r( B; i$ ^( R4 }# g
' {( C: V- M& S: x) X SysFreeString(topicStr);. b8 x3 A3 z m% l
SysFreeString(itemStr);1 i J# o$ Y P$ s
SysFreeString(valueStr); 3 f. C( u k1 b2 O, U' E3 X, F. c3 B4 ?
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??? 4 V5 w1 N& a% ?, M' b4 s, 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????9 o1 F! V: E1 ~
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2.这是request的程序# F) E; D# `, ?5 O
// Request a value from Extend1 j0 {+ }) ], t; W" A) W8 q4 v
// $ P# U& p) c' o3 i6 n+ N3 Q// Initialize the variant that will hold the BSTR. Set the variant's + U' R! y: p1 J4 W# \// type flag to indicate the fact that this variant holds a BSTR. Place the ( j( ^6 S( ]9 X2 C// BSTR into the variant structure. ; n! l6 V4 J7 e2 F ( C. {3 f* {& j, \; H4 e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ c( O) l0 t' \! U
) e0 j( o( h9 N+ J ]4 X7 C" p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & \7 V/ d. o# O7 _! B VariantInit(&requestVariant[0]); * g0 Q' ?( ?4 R: g0 n8 i. q! x requestVariant[0].vt = VT_BSTR; ; r5 Q+ m: d' [' O- O- e requestVariant[0].bstrVal = itemStr; 8 ^! W% I1 P0 p8 y: B ( a3 n# M; A7 }) Y) M" X! e. k topicStr = SysAllocString((WCHAR *) L"system"); 6 Y V. @) ]5 j* L! j: V& G VariantInit(&requestVariant[1]); : Y1 o8 C4 s, [; T& b requestVariant[1].vt = VT_BSTR; # w$ [& s& Z% D5 s% k requestVariant[1].bstrVal = topicStr; 2 J2 N# ^0 d* E& N, b/ O 4 r7 B+ u1 d P) `// Set the DISPPARAMS structure that holds the variant.& _; u, _3 {* x3 U1 F1 U5 b
' R! a" n) K: i0 Y) ^
dp2.rgvarg = requestVariant; # i3 z8 q2 i( \ dp2.cArgs = 2;3 N: Y/ }- V, _) T7 N+ J5 I# C
dp2.rgdispidNamedArgs = NULL; 0 v* ^' k6 M: }( K! w& _ dp2.cNamedArgs = 0;4 z" |7 y, x) t5 G; O( {# b
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var.vt = VT_EMPTY;0 j/ l& p/ @( H: l
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// Call IDispatch::Invoke()1 R/ {4 o5 Q( h
g& A5 {! d% e& _9 K hr = m_pDisp->Invoke( ! G5 F; V, o- I) d, O0 C requestID,% E- Q) o+ S8 H7 m; ]* n' k' w8 A# D
IID_NULL, / C \9 P2 K# S8 \ LOCALE_SYSTEM_DEFAULT,' j9 q A# {, e* t# [. J3 g# y
DISPATCH_METHOD,! r+ ]/ B6 [& f+ U! [- D( _! {6 b
&dp2,. i! S+ C& z* B* C' j' M0 i5 S
&var, 1 W1 h4 `' c9 q% N# h5 w0 J1 s' M &ei,+ F) ~2 _" O( S/ O! _" R
&uiErr); $ r! o7 _" E+ M H ' t1 B8 q6 {; k1 {& G8 |0 ]% D/ k9 k8 r SysFreeString(topicStr); ! o% D# w: x. P9 ^0 }" J SysFreeString(itemStr);5 ?: ]1 Y' x) u7 o$ \
请问该程序是获得extend里面的哪个值? " g: }% |; i, 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????