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:( Q" g' a- ?# s; H ^
Name = (WCHAR *) L"Poke"; + u1 P* F# @4 v+ h) F6 B 4 O7 h5 I6 {1 I' `0 _# y hr = m_pDisp->GetIDsOfNames (' v! ^0 @8 h+ _; @+ H
IID_NULL, // reserved8 R' c' J' g/ U5 T# W+ w
&Name, // Array of names to get IDs for * d1 @9 K" Y' }# A 1, // # of names in the array- B2 M9 E2 i3 h( W
LOCALE_SYSTEM_DEFAULT, // System locale# f; ^/ K- W- \( m
&pokeID); // Array of IDs to fill on output1 v9 J' [% \# w; }- h$ V( D) a
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if (hr)4 l3 e6 Q: O- W& S
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MessageBox ("Get Poke Unsuccessful");# C% u/ n' j0 C# w) G/ C
return;" m0 i; W, ~6 O- ?
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8 L2 Z1 V- L+ @/**************************传递数据给extend**************************************/. V/ |7 B1 d/ U* o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 G4 a/ j! [# L7 z7 ~
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valueStr = SysAllocString((WCHAR *) L"1232"); " F! o6 m! S+ E" g: j. K1 K" q" Z$ N% G VariantInit(&pokeVariant[0]); ! j5 k5 E7 \" u4 Q, _
pokeVariant[0].vt = VT_BSTR;! |- z9 |+ @6 b& ^; g2 m, e) F
pokeVariant[0].bstrVal = valueStr;; y* U3 }5 ?: n3 {+ e, W+ _# y
# E- R6 A. G: b* n& f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. n: t# N& Y. l% a* J: f2 P" X$ A
VariantInit(&pokeVariant[1]); ! [1 h7 C) S; { pokeVariant[1].vt = VT_BSTR; ! ?, V& n! Q% ^* B' Q$ A' l pokeVariant[1].bstrVal = itemStr; 8 i# N. P7 h5 [* n- h 9 e8 K0 g( R* }" }1 W& } topicStr = SysAllocString((WCHAR *) L"system");! g9 }$ _2 y( G4 \% l2 O
VariantInit(&pokeVariant[2]); 1 Z U e m6 ]. D* ] pokeVariant[2].vt = VT_BSTR; % Q+ G& U3 w- p8 l1 ~ pokeVariant[2].bstrVal = topicStr;6 c' e9 Q2 a }5 s: L- r
w9 G" c' B1 R: Q5 e k3 {// Set the DISPPARAMS structure that holds the variant.5 h+ F$ H3 S3 l4 F# e8 m4 N8 D
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dp.rgvarg = pokeVariant; 6 _" [: m! I3 k dp.cArgs = 3; # j( P! T' @& a. b- q$ ^+ Z dp.rgdispidNamedArgs = NULL;! c+ k# i# d( m- a* i; D% V
dp.cNamedArgs = 0;- ~$ b' l( Q. O* j1 @: N8 A9 S
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// Call IDispatch::Invoke(): k- R8 [; q: f3 o' M" L
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hr = m_pDisp->Invoke(# e/ p5 X K8 d- F8 b. l
pokeID, , k' Q. e9 P0 H" P/ D IID_NULL, . R; {% k* x- h$ Y! l$ ~9 o LOCALE_SYSTEM_DEFAULT,; x+ P# ]$ _! F) Y. g9 _
DISPATCH_METHOD,3 Y8 N- P/ B+ c8 s3 w4 _) }# Q$ |
&dp, # O# k. z0 D. X, l2 ?( z NULL,, i+ e# z& l' E" P" m& A# Q: g
&ei, 4 _" R% a) N: [0 d' ~; g# _7 k; R &uiErr);+ t( I; o( R( W
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SysFreeString(topicStr); : [# f& G0 a1 Y" A SysFreeString(itemStr); 7 N, ]/ _0 P5 W. {: V, q SysFreeString(valueStr);2 @- t6 l9 g# [
; P! o& W4 R9 b; I. m8 B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???$ H* f8 G5 Y; |7 L$ \
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& \ w+ B9 N V
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, z" t0 i( ?3 [7 y( p8 z8 j2.这是request的程序) }' [! Z2 j/ O6 R' N5 d2 L
// Request a value from Extend- |$ U9 W% T$ D7 L, Z- Z3 k4 X0 Z
//7 T! m/ |. j! k2 v, q1 S
// Initialize the variant that will hold the BSTR. Set the variant's 0 o1 ~( n G" q7 q# d) V. O// type flag to indicate the fact that this variant holds a BSTR. Place the 7 F$ G, [4 e4 j4 u// BSTR into the variant structure. + K7 ]# B5 S, Q) x6 Z9 J# e) ~ # B) L1 B( c9 v: n0 z8 n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % x% g: K; l5 A ] C `3 K$ X$ O5 y( L9 V: v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) j( i- f# S) u6 g/ f" s VariantInit(&requestVariant[0]); - u+ s2 d2 ~$ w9 O; h4 Y
requestVariant[0].vt = VT_BSTR;' m$ w/ _" U. g7 G' k. B
requestVariant[0].bstrVal = itemStr;) N e ]! m3 J