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:7 a, n8 C" Z, u
Name = (WCHAR *) L"Poke";& I/ M' J4 X8 O) D- F! F
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hr = m_pDisp->GetIDsOfNames ( * }! _+ {4 J2 ? IID_NULL, // reserved' I& A7 D7 v) E
&Name, // Array of names to get IDs for * O* P9 z* d N$ l [ 1, // # of names in the array+ |) `. w: u4 s6 x& H
LOCALE_SYSTEM_DEFAULT, // System locale / }1 A' Z- |; V! r9 [* w &pokeID); // Array of IDs to fill on output! S1 P1 m7 `8 s8 W0 A
: Y2 ]% K8 t. d& Q- V( s! S- O if (hr)2 l% H: |& \( Z6 _$ f! q
{ , g+ ~" S, o& W# P) g6 T& p: C C MessageBox ("Get Poke Unsuccessful"); ) |9 d x! [. g! u. D) u return; # Q4 U) W+ R( L/ x- m- d } / F1 A4 R" s& p+ K$ K3 W" U, K& K; z8 f+ A2 P# X
/**************************传递数据给extend**************************************// p8 O, L8 J' V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . x! K3 X0 w+ D5 Y [ q- ~2 R# A3 z8 w( `8 \( G valueStr = SysAllocString((WCHAR *) L"1232"); 5 y: `+ U# x% b. l& \* \: m VariantInit(&pokeVariant[0]); * R2 q" Y, [. }+ v# q
pokeVariant[0].vt = VT_BSTR;& W/ `+ ~, L3 p4 V
pokeVariant[0].bstrVal = valueStr;; O: J( ^8 B# _+ Y9 a3 S% _4 J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ ]" X4 n% l" X2 r
VariantInit(&pokeVariant[1]); . E4 d9 l p2 I$ ^& b% d+ }
pokeVariant[1].vt = VT_BSTR; 3 L. o) ~- Y. Z( s pokeVariant[1].bstrVal = itemStr;* N% {! ]( K/ }- ~: v* F
! q5 m0 Q4 _" N% n" A( h5 f topicStr = SysAllocString((WCHAR *) L"system"); ! S6 l( m! ], a8 C0 J6 `4 { VariantInit(&pokeVariant[2]); ( o' V7 P4 _; z0 u( M0 @ pokeVariant[2].vt = VT_BSTR; 4 ?- M& F8 ?% Z, C- ?* l pokeVariant[2].bstrVal = topicStr;2 ^; T6 f+ x9 J/ j$ Z
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// Set the DISPPARAMS structure that holds the variant. ' N; a4 _) K& E0 \8 s 4 O `3 M4 ~ ^8 N. V dp.rgvarg = pokeVariant; + q4 ~0 v' ?: O, C dp.cArgs = 3;/ \+ R8 u$ P- P( B; X n6 K
dp.rgdispidNamedArgs = NULL;% d5 d/ M! R. |
dp.cNamedArgs = 0;; \$ l$ l2 _2 W, q5 k. f
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// Call IDispatch::Invoke() ) k! h/ ]. e. |( @: S; M0 n) }* ?5 Y; r( v
hr = m_pDisp->Invoke(5 s2 B1 P5 K8 A# \
pokeID, ; }& x: s$ c8 g+ S IID_NULL,5 L; `/ A( O/ f; g2 f' \
LOCALE_SYSTEM_DEFAULT, : c/ `# i V' j3 f$ s DISPATCH_METHOD, k/ r/ g$ i* `7 p+ [2 @5 E
&dp, 3 I* d% J4 l2 z) P& ^! I# w NULL, * S1 j8 A; G) Z4 u! t, ] &ei,1 |6 Z- ?' q* x2 }
&uiErr); % `% O! X( ^& ~7 i+ U3 ~ / |8 _* G" J; f SysFreeString(topicStr);4 Y3 l% j* C+ k6 b. Z+ Z1 h% I
SysFreeString(itemStr);3 F+ [2 m5 U: D/ |( v o4 a
SysFreeString(valueStr);8 {' B/ ?7 b! } u6 U6 o* g
" b* i1 ~$ `, q$ d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 r/ H: |# Y: x: G7 `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???? + D8 w: A$ @ R4 } x4 m * F5 T" \9 s- ?; ~( \. e) q. W 5 G/ k3 P( g; [7 |7 z2.这是request的程序7 u& Y4 g8 c: K+ u& { \
// Request a value from Extend7 \5 p- Q$ J+ p) |5 u
// ' H5 h+ n# I; H/ J7 y) K// Initialize the variant that will hold the BSTR. Set the variant's 5 P2 |$ ~% b- y' x4 h6 n% Z5 I// type flag to indicate the fact that this variant holds a BSTR. Place the9 o! @/ W. U% N' L0 T
// BSTR into the variant structure. " g% D! \$ o- Y7 a# e 8 |( [ y, Z( f1 b' y5 q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : i3 P0 Q7 {- z8 J2 N2 i. ^" Y 7 j9 \ ?+ A; ], U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& X& a+ {$ v% \& `
VariantInit(&requestVariant[0]); * }: W. G/ J$ j5 q% h) u" h; Y requestVariant[0].vt = VT_BSTR; 5 U; ?* |5 M* E- B4 J requestVariant[0].bstrVal = itemStr;: o$ L) @' w* V$ W; {9 ` Y: L5 m* o
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topicStr = SysAllocString((WCHAR *) L"system");/ a1 c! p; G. D% s% S# W
VariantInit(&requestVariant[1]); 0 I: e- \, Q5 m+ M
requestVariant[1].vt = VT_BSTR;+ p4 N7 V& e" l* d
requestVariant[1].bstrVal = topicStr;& t$ g4 u9 C: G7 p
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// Set the DISPPARAMS structure that holds the variant. 1 B- ]! x, T5 j5 z, C4 r; p 7 m8 W) @: o# C5 p dp2.rgvarg = requestVariant; 8 X5 a& T2 _# v" v9 @) a) e dp2.cArgs = 2; 8 I6 A0 X' y; w; d5 {& Q) I b dp2.rgdispidNamedArgs = NULL; o2 F8 x [) j) z! V, e dp2.cNamedArgs = 0; ' J5 q% s, s; r; x7 F& r4 A( }5 ^6 F( @. y
var.vt = VT_EMPTY;' S" O: a, g+ @7 K( l. J) f
3 _2 e' B- \( U& [0 H// Call IDispatch::Invoke()# p$ i2 ]) B# f! }2 ^% s
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hr = m_pDisp->Invoke( " t) Q2 z' P' d. m5 l( t4 q requestID,8 P \% o- Z/ T9 S7 J( {1 l
IID_NULL, ! w& x, i8 V* |4 ^+ B LOCALE_SYSTEM_DEFAULT,# h2 v: [9 Z# l* W. I
DISPATCH_METHOD,7 m' u/ q/ |" F# A
&dp2,! H% Y* u" [! R# D
&var,5 ], m5 a: x- h! c$ F
&ei,$ u/ w) U6 Q" y8 J9 T8 X
&uiErr); - u! H$ k1 j6 W6 ^' ~& K+ B s- n2 Z! Y( R
SysFreeString(topicStr);3 H, l! m' P0 O& N
SysFreeString(itemStr); ; k" \" a9 t% H& k: H& v请问该程序是获得extend里面的哪个值? 8 d! ]5 g, N/ 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????