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:, \! l( [/ y) F3 U$ N ^
Name = (WCHAR *) L"Poke";8 w m1 \' n9 A; K: a: g
! s5 A/ d+ ^! B1 d: A hr = m_pDisp->GetIDsOfNames ( 5 Z3 _% g( F, h, K D IID_NULL, // reserved ) P7 k5 M+ N, j, C( T$ k; I9 T &Name, // Array of names to get IDs for 4 q7 t; b% \5 y 1, // # of names in the array ! M# X* m8 `0 Y5 k. e6 Y# Q$ R8 F7 Z LOCALE_SYSTEM_DEFAULT, // System locale: g9 q: _" s: U( L" P
&pokeID); // Array of IDs to fill on output A8 O" z) v0 x5 g3 a- j
5 U) q% v8 g! r: d% t if (hr) ; E; w# m7 G( P7 S# p: Z {8 F& }- i/ m& d+ _4 a7 X! O: s! c
MessageBox ("Get Poke Unsuccessful");6 z: f% F7 R- n2 a9 `1 h& g
return;- e2 ^+ ^( I' D% Q: M) O a
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6 K/ y+ X# w/ e! N% r x/**************************传递数据给extend**************************************/ , i' ~6 U8 `2 d2 T) Y+ C! V! D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 z" I8 I' i4 o8 w2 } 3 j4 V4 u* @7 _8 ^+ z% U1 Y valueStr = SysAllocString((WCHAR *) L"1232"); `4 ]7 h8 C% E; l
VariantInit(&pokeVariant[0]); 5 U" V4 L& ]+ ^% b
pokeVariant[0].vt = VT_BSTR; # S) t B4 J: H+ B6 p! w pokeVariant[0].bstrVal = valueStr;6 P& Z/ X8 U R" T
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ Z8 W/ a6 e/ g$ L. [+ U' H A( J2 u; W
VariantInit(&pokeVariant[1]); $ @; B; E, A1 c8 M# @ pokeVariant[1].vt = VT_BSTR; ( H# ~1 x- w7 R# N; T5 O' A pokeVariant[1].bstrVal = itemStr; / m0 d; g6 N7 l5 R3 N3 X1 L' U6 Y; f3 `- N8 S5 V5 t& U6 U
topicStr = SysAllocString((WCHAR *) L"system");1 N# g" K: N1 k3 p9 q1 t
VariantInit(&pokeVariant[2]); + ?3 y Z2 v) g9 s3 ~, o4 |1 }
pokeVariant[2].vt = VT_BSTR;, L2 x% m5 f4 d& \7 M, D; ]$ t* u
pokeVariant[2].bstrVal = topicStr; ' Z: f3 v! _7 C8 r1 [* O* h3 ^6 u: J% g9 g
// Set the DISPPARAMS structure that holds the variant.0 a) E ~3 c) E
5 t+ |+ H% {- m4 Q9 u1 d6 | dp.rgvarg = pokeVariant; & b0 k# e6 w F) d5 ?/ y dp.cArgs = 3;9 Y3 W) J( Q6 k' o7 O6 O* n
dp.rgdispidNamedArgs = NULL;; w# u% J" w3 g9 u- w5 H/ V
dp.cNamedArgs = 0; / o; i6 y2 I2 |& C! y Z0 B- ?1 b8 B5 M/ C+ {, g7 c9 t
// Call IDispatch::Invoke(); o, X+ l6 i$ T) f, m
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hr = m_pDisp->Invoke(! r& y- I" m0 A; v! s' p7 [4 Y* J
pokeID,) T; N( {* v( j
IID_NULL, D( p5 Q2 G8 P7 c; q! Z LOCALE_SYSTEM_DEFAULT,% N8 d& n" l: c
DISPATCH_METHOD,4 ?. i$ P4 W5 X# B0 E3 _4 P
&dp, ( }, b8 N4 c! u. w( g- X" P NULL,9 ^, V2 v$ h2 }1 d9 n
&ei, $ p" _" _# \4 a7 M$ w &uiErr); 7 _5 m) }/ X4 g- ~8 a# P& j+ v/ x! O! ^' V2 _
SysFreeString(topicStr);7 v7 ~/ s: `0 s: a8 s' @8 u
SysFreeString(itemStr);! r. }) Z; P5 b7 G& d) w
SysFreeString(valueStr); z, f9 k# Q5 l9 b5 g& z: k/ m' a, {" [8 }, o
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???) V* W) Z9 O; _4 G
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???? + E3 a9 m0 G' @) o* X, @8 z4 S9 E5 C! c4 J+ h; g: T
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2.这是request的程序4 V9 I% ~$ f l7 f0 S0 p. w8 P
// Request a value from Extend# I2 _, i7 I+ d4 O6 X# o+ W
//' `) i J0 w; f4 }/ I. ?# }4 ?# J
// Initialize the variant that will hold the BSTR. Set the variant's: [; E: g8 E4 V' Q' P* n- I6 T9 g
// type flag to indicate the fact that this variant holds a BSTR. Place the0 j" d% O. A2 ^7 B% K" G2 W
// BSTR into the variant structure.% [, o2 \" }' I# E6 y2 ^! {
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& w+ o: n/ h3 q+ C. \
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 s+ s6 z V* m c& A2 n# j
VariantInit(&requestVariant[0]); * v- e' V0 y5 V" j m' } requestVariant[0].vt = VT_BSTR; : F; l0 g) `2 f: `# N requestVariant[0].bstrVal = itemStr; 2 f- e) E) \7 `1 }3 a M1 S: `( M" q
topicStr = SysAllocString((WCHAR *) L"system");( O7 p. d& v! E/ w
VariantInit(&requestVariant[1]); - I( u E }2 U9 K2 F
requestVariant[1].vt = VT_BSTR; # B: f! {1 l( z5 a' P3 l3 K2 A requestVariant[1].bstrVal = topicStr; $ M. ]4 B/ f! z) I) ]3 e # V+ T( r, P) F, ?: X5 {// Set the DISPPARAMS structure that holds the variant.( P/ `9 b6 c0 f9 u8 {( R
8 X1 R& }8 r& ]9 l& g9 { dp2.rgvarg = requestVariant;) K8 B1 j9 V- g7 f9 o
dp2.cArgs = 2;7 X' [& U( F K. z
dp2.rgdispidNamedArgs = NULL; 6 Y; [7 k- u+ Q' d0 ~ dp2.cNamedArgs = 0;- L7 i; T" g8 X2 q$ G: N, Y
% }9 R z2 ]+ r8 { var.vt = VT_EMPTY;$ M' q3 A* Y1 o% ?, G) u
% u( d7 a' F9 [ c// Call IDispatch::Invoke(); q+ v7 h, C. \/ l5 C
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hr = m_pDisp->Invoke( * F& p# y5 H+ @+ W, X* S8 g requestID, 7 O7 i. }4 y8 i# I% T IID_NULL, * Q9 L% i9 P$ ?$ U; L+ e LOCALE_SYSTEM_DEFAULT,6 y) w( F6 W( o- W
DISPATCH_METHOD, 0 ?0 N$ t# g4 m# p( }+ c9 Z2 a &dp2,( ?5 R6 f* g7 f5 L. U
&var, 5 [+ ], z3 A9 l. q# v &ei,# Y8 b$ B0 s7 o, W
&uiErr); . s6 P. C& [/ D& Y3 a, }- _: ]( r( C, g% r+ b* _
SysFreeString(topicStr); 8 F3 Y1 q3 @5 G8 x% W6 g+ U5 a6 C SysFreeString(itemStr); ! [: U/ }( f- n5 z; ^5 I- a请问该程序是获得extend里面的哪个值? ; I3 P4 C, J- E. a) @7 s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????