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: * r8 F/ V. L% }0 P+ T( a! n5 D UName = (WCHAR *) L"Poke"; , p* k& `. M$ F; R# i G3 ] 7 G& {8 X1 c8 I7 W) W1 O8 L hr = m_pDisp->GetIDsOfNames (3 l+ O# V. | O
IID_NULL, // reserved D* Y0 D8 y3 E S9 w9 z' [5 n &Name, // Array of names to get IDs for 0 V( V. j/ N# F$ g 1, // # of names in the array8 ^) w7 }9 _+ Y6 d" m, {
LOCALE_SYSTEM_DEFAULT, // System locale2 O. B# F; h; z4 Y
&pokeID); // Array of IDs to fill on output8 F9 M$ N$ _; d }. c" E
3 c7 d/ m6 f& a# U- c7 P if (hr)& k. ^7 i/ p! l) c8 K
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MessageBox ("Get Poke Unsuccessful"); % v" T+ G; y. s$ q return;2 N" h+ E- |# V8 W3 O2 X9 J2 j* x
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/**************************传递数据给extend**************************************/6 N1 V; Y! Q: t1 \2 ?. E5 M& S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , i4 s" b2 I c! \/ t6 P1 G # G1 c! I1 Y6 ~+ h/ c valueStr = SysAllocString((WCHAR *) L"1232");1 c; C9 |* d! f$ T. G; `
VariantInit(&pokeVariant[0]); * K: J9 G" [7 F% E/ I) S- ~
pokeVariant[0].vt = VT_BSTR; ' @( L; C0 j+ X+ Z+ S pokeVariant[0].bstrVal = valueStr;. j6 y9 @. V8 h$ ~0 M) T% i
# A# P" c- G G2 ^* S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 R7 u( h4 J* W1 F$ f- P" _
VariantInit(&pokeVariant[1]); 1 @1 K5 s. M& a9 F+ ?* H
pokeVariant[1].vt = VT_BSTR;" r- h, v" S% }: ?2 }$ m# j
pokeVariant[1].bstrVal = itemStr;0 ~' K# x, m5 K4 m' ^: X
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topicStr = SysAllocString((WCHAR *) L"system"); 6 a( g: x1 x K% S2 m VariantInit(&pokeVariant[2]); ) U& T% @: M1 q2 P1 M pokeVariant[2].vt = VT_BSTR; 5 j0 X ^+ r3 h* E, k6 W pokeVariant[2].bstrVal = topicStr;8 E P0 t$ T) E
( V u8 [" R, M- _5 H0 d3 z e// Set the DISPPARAMS structure that holds the variant., @ T) {, F5 D. ~) k
( z- e8 w' ]4 }. P dp.rgvarg = pokeVariant;) i1 U" A+ ^8 ]2 N- C5 X
dp.cArgs = 3; % f# J+ ?& H; w dp.rgdispidNamedArgs = NULL; + l4 _! W7 O U; q dp.cNamedArgs = 0;) v7 N; h' E! A' M! v
, |, m" B1 Z. {. {
// Call IDispatch::Invoke()4 N' q9 e3 C U5 {4 Y; W5 H
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hr = m_pDisp->Invoke(& P* _$ M R% l7 O, P* B1 ~! y$ X
pokeID,; X* Y) {9 y0 [( a. y( |0 V4 _
IID_NULL,5 J/ V8 [2 L# t( f. l# Y. u9 ~' i
LOCALE_SYSTEM_DEFAULT, 3 A) u* a3 q6 k3 q8 X; H7 o DISPATCH_METHOD, . _6 {! p+ N) X: \ f &dp,+ H& h1 Z6 z+ R) K
NULL,6 d' D7 R) P P7 m; i8 ~$ ?
&ei,. U. } a& T4 U3 {- Q
&uiErr); / M" h0 t, }4 N& n( r8 g- G+ s 2 W5 e& b7 Q$ G, I SysFreeString(topicStr);1 |. D" M2 E1 H* ^" ^1 p
SysFreeString(itemStr);% k. k1 N% e& d/ Y
SysFreeString(valueStr);0 r' u" x% Z' H' g9 O5 L% Q2 P% P
( w: C$ a/ @* \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??? / F7 F. j. u2 a: K! J% Y9 |& 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???? . z* m5 k$ j/ V% Y& V4 @) Q; b, C( B1 \) h
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2.这是request的程序 / ~" E! @ `- _// Request a value from Extend ) n* k& h+ n9 K" m, x' J+ w// , I8 n& B0 ^* C( ?3 T) \% U1 g// Initialize the variant that will hold the BSTR. Set the variant's % ~/ Z# L4 J2 |# K/ ~4 _- P& @// type flag to indicate the fact that this variant holds a BSTR. Place the2 |" v" ~- g. w; B; z% L
// BSTR into the variant structure.$ W. m+ x- l2 \/ k; }3 v: h
7 u s: y( J+ k8 U5 Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ v; x$ n9 v1 I5 R3 E4 ^1 D * n) E1 s" i1 Z" n2 C' J% }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, g/ v! o* S$ p
VariantInit(&requestVariant[0]); . Q/ f# K7 F4 v1 R: u1 |/ S4 i
requestVariant[0].vt = VT_BSTR; 7 }% z) e9 W, W: b; S; R: S requestVariant[0].bstrVal = itemStr;+ W* X. Q2 Z# }! ]- E
3 g0 A X" H } topicStr = SysAllocString((WCHAR *) L"system"); " y/ _7 q4 Z+ M; }, B5 Q6 L' z VariantInit(&requestVariant[1]); . F. S6 y% f( h8 O% o requestVariant[1].vt = VT_BSTR;# ?& O) D6 B6 Y. F6 t9 A" o9 `
requestVariant[1].bstrVal = topicStr; 3 e- v1 e5 A; b8 ~7 D7 c" N: S. c* w* y: E& X! L: G% q
// Set the DISPPARAMS structure that holds the variant. ) y- \. P1 O3 C1 j4 V* S ; Z; H5 v. K( R9 H7 N: o dp2.rgvarg = requestVariant;$ y; k' J9 s3 y, a
dp2.cArgs = 2;! U7 f+ M5 K. u7 v
dp2.rgdispidNamedArgs = NULL; ) W( v2 {5 }# @7 F" K& f dp2.cNamedArgs = 0;+ L; ?8 j3 ~) }& L9 V" Z0 {
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var.vt = VT_EMPTY; 3 Z6 C$ i9 h U+ b6 x1 r# C5 ^1 g2 f7 ~: V& T
// Call IDispatch::Invoke() + Y' z% |$ m+ @" M" R- ^0 A j6 F, u/ M; M/ x3 k3 y
hr = m_pDisp->Invoke(5 b4 m; J* b F$ J
requestID, ! D8 e, a- I9 K IID_NULL,/ B. G& E% ?* w \: F3 v% D$ m5 _
LOCALE_SYSTEM_DEFAULT,' Y. z* }$ K+ T8 a7 p
DISPATCH_METHOD,- y) v7 w( @9 ]; b
&dp2,# `. V! X% s. p9 b5 l
&var, % _2 R: N c4 z- G &ei, 0 n8 j6 P- m# g. n4 B2 Y1 V4 S &uiErr); 3 Y: t/ U* M0 N0 o# V# b+ b6 S: T; R# l6 c& m
SysFreeString(topicStr); 9 `$ i/ h! i" V2 G: W& @ SysFreeString(itemStr); % ^& B; ^, a2 h请问该程序是获得extend里面的哪个值?# T9 w$ ?5 T Q1 o5 d6 y1 u5 c
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????