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:2 |+ A- q6 h8 B0 j* d
Name = (WCHAR *) L"Poke";3 W- s* W! F5 C5 Z8 y; X
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hr = m_pDisp->GetIDsOfNames (9 y X X# S! m$ N
IID_NULL, // reserved 9 o! b/ I: R5 K, `+ H& ] &Name, // Array of names to get IDs for - |" q+ I2 T0 d+ {6 g- D' O 1, // # of names in the array ! P( \7 a% z) F; T; H3 E; D$ O LOCALE_SYSTEM_DEFAULT, // System locale 1 G/ d, f6 @5 n7 c. i &pokeID); // Array of IDs to fill on output 4 i9 M( x. Q5 A. G D " M3 {8 u( Y# H% r) X5 B3 ^ if (hr)- O! I3 {; Y' r; A- b
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MessageBox ("Get Poke Unsuccessful"); 4 W5 w O$ M0 }( n return; % q: k" x5 [9 d) Y* x } 8 `; U* N3 X6 M0 g, ~# R- y& ^1 I4 q$ H& m. r+ _
/**************************传递数据给extend**************************************/: q6 d t# z4 j* y, |! T2 M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 Y% ^1 g, a3 F0 m, A6 r: Q
9 D8 o1 M7 J z! m6 H& M2 A valueStr = SysAllocString((WCHAR *) L"1232");. \9 M, c% t V' ?7 O+ F- y
VariantInit(&pokeVariant[0]); : y7 i: A9 L% {
pokeVariant[0].vt = VT_BSTR;5 p' M9 P( a. s" P/ c# {9 i
pokeVariant[0].bstrVal = valueStr;0 H$ j* p$ s( U! q6 H: k
' ^2 O" T }5 r5 L1 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) ?% q- N& p- h! w( m( w
VariantInit(&pokeVariant[1]); : t1 q* G/ B* o pokeVariant[1].vt = VT_BSTR;/ ]3 k8 y; O2 L+ X! Z
pokeVariant[1].bstrVal = itemStr; + L- J2 _1 f, A A& b ( c& V' H2 q+ E/ F% d" O topicStr = SysAllocString((WCHAR *) L"system"); ) c/ ]3 Y1 W! _1 ?, F VariantInit(&pokeVariant[2]); * L8 _% `! W+ D- n" Q pokeVariant[2].vt = VT_BSTR; x6 R7 |* z4 s' u; Z pokeVariant[2].bstrVal = topicStr; 2 X0 D* V. o* n# V$ [$ g* E" i) e, j& J8 q
// Set the DISPPARAMS structure that holds the variant.3 F# [2 I# j( o6 [ B C9 _
3 Q- F1 s4 Q/ N7 O, ?' ] dp.rgvarg = pokeVariant;, m4 L, O' x3 Z9 U& {5 L
dp.cArgs = 3; ( l7 W% O$ O8 @9 F- e dp.rgdispidNamedArgs = NULL;1 L/ O5 m( H6 f+ k5 M$ ]& z
dp.cNamedArgs = 0;8 p+ M/ \/ U3 m8 [' r% t& m# Y
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// Call IDispatch::Invoke() , u% ~, r+ E% r1 L3 k9 b+ H1 } % }+ @' q; G' X" h hr = m_pDisp->Invoke( * |5 h/ E+ y/ _3 N4 { pokeID, , V. f! Z7 ^' ?) z IID_NULL, " H) M- o/ W. U9 v! J LOCALE_SYSTEM_DEFAULT, ! t9 @# S# `7 m' S2 K DISPATCH_METHOD, * R# f5 Q% D r# W' D/ t &dp, ]4 V. j1 J0 X NULL, ! y0 J& D$ l4 @5 G. G$ G &ei,) J+ @ t: A3 I
&uiErr); . ^" K# ?% N' e# o0 C. i: ]" I' r6 {$ I7 c/ F& k" X6 G7 l0 B3 _
SysFreeString(topicStr); , L) ~# `! `% b3 Y SysFreeString(itemStr); 5 v: }& E2 s# B+ G* o+ u! T( Z$ l SysFreeString(valueStr); $ j) F2 d; \7 ^$ o 2 U2 a# K- M( H% m! C8 U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??? + G2 I4 a+ F% b; n, h5 j6 E4 }3 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????" o, R" y y6 P; Y9 z
8 ?- v# |5 }& w" h. r( h/ }0 o * m2 B1 D( t, {! R7 F4 J% K2.这是request的程序, R. j4 e9 Q! k0 I. q0 L3 `
// Request a value from Extend5 \ R8 c, e1 z2 _; G- s) I
// 4 W, q* B$ y) u$ C: `, O// Initialize the variant that will hold the BSTR. Set the variant's8 `$ s- h. ?6 s# e: w/ s
// type flag to indicate the fact that this variant holds a BSTR. Place the5 I8 ^, i+ X$ z: A
// BSTR into the variant structure.9 v' T& Y" ?" v+ ~/ \5 V, K
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % O; _1 s; I" k* R$ w : z4 }. d1 n9 u/ M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 R' a, g3 L( Z' L4 c VariantInit(&requestVariant[0]); ' S+ C/ u, f! p9 @0 ?% z: R0 y requestVariant[0].vt = VT_BSTR;$ j. T; c. c( s3 ~5 \
requestVariant[0].bstrVal = itemStr;8 s2 M: N. D# I( D0 G! B
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topicStr = SysAllocString((WCHAR *) L"system");3 k: f+ Y2 m5 e8 M l* D; N3 Q, f
VariantInit(&requestVariant[1]); 0 w, a, s o3 U6 q, t, y" K
requestVariant[1].vt = VT_BSTR;5 I8 _ w" \. x: o' O1 Q' R
requestVariant[1].bstrVal = topicStr;9 K# I9 X" y0 `; U2 H
- c) }% T4 @1 L8 I& q* C; |// Set the DISPPARAMS structure that holds the variant. l; S) s+ t* L" P+ G% r+ z; W) Y