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: , a& g3 B: Y; a: G! eName = (WCHAR *) L"Poke"; 7 I% c: l y+ C' Z3 ] + `0 r) b& Y" n( m4 N& S
hr = m_pDisp->GetIDsOfNames ( : d6 u/ u# j8 L1 V$ u& K1 b IID_NULL, // reserved # K% J, v5 \/ W2 n6 Q &Name, // Array of names to get IDs for" ?& U- m5 g0 f; h
1, // # of names in the array / w; {" I F0 @- V4 }2 x& _. ] LOCALE_SYSTEM_DEFAULT, // System locale: r9 T/ m& C0 _' S9 X' [
&pokeID); // Array of IDs to fill on output5 I- |( y* ]7 F+ T$ c. p( K
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if (hr)6 \& M" E$ G4 W! S' K- D
{ 9 m/ K1 c- r8 V MessageBox ("Get Poke Unsuccessful"); 9 G6 |% b6 V' i3 u return;- ~$ f* H0 Q. Q
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; ~ C) c/ ]7 a( J9 g/**************************传递数据给extend**************************************/ 6 X7 `1 j3 f" @9 K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ U2 w. e- u! b/ M+ m% U% d# w; N
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valueStr = SysAllocString((WCHAR *) L"1232");* r& f1 ^) _3 t' n+ ~- K0 x8 `- V
VariantInit(&pokeVariant[0]); ' I; k5 c9 ~' F+ r0 q8 i& v" |/ t
pokeVariant[0].vt = VT_BSTR; # }; k5 N8 q4 J2 `% A pokeVariant[0].bstrVal = valueStr;0 S, Y# x, l; j6 W
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) r8 _8 w9 t+ s VariantInit(&pokeVariant[1]); 1 O7 a# K! i4 r( ?1 z7 m+ C. _
pokeVariant[1].vt = VT_BSTR; / d7 {0 | J5 |1 z' ^: w pokeVariant[1].bstrVal = itemStr; 0 k! O6 m0 |; L% W- s3 N + B+ V) u3 t2 v; C& ? topicStr = SysAllocString((WCHAR *) L"system"); ' _7 H3 y* B3 p9 O% R5 a VariantInit(&pokeVariant[2]); 7 r8 Z- C% f7 B! H v- Y" l pokeVariant[2].vt = VT_BSTR; $ m+ g2 ?9 k, @4 F+ o& P& I" J8 b pokeVariant[2].bstrVal = topicStr;# h, l$ C/ d Q# h& w
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// Set the DISPPARAMS structure that holds the variant. ( O1 R7 A8 c+ z: z/ X; D! d6 P1 ^% M+ f4 B- F
dp.rgvarg = pokeVariant;% z; F. x7 N6 V+ D/ b8 r# p$ J2 I
dp.cArgs = 3; " u: [) N$ C5 _$ k) j$ o dp.rgdispidNamedArgs = NULL;, O3 H# }! H- |! O, ^4 H5 V
dp.cNamedArgs = 0; " ?* T# n% e4 |: S9 Y9 y% r! w0 [; e% H5 D( @# b! J2 k
// Call IDispatch::Invoke() 8 G7 U" x6 R# ~) D 6 \1 E+ A) L# u, n* o6 b2 P& d hr = m_pDisp->Invoke(: c1 j* U& _9 D: f) }& U% z
pokeID, 5 A& j$ q2 A& J& f5 L+ Z: [ IID_NULL,. H r6 j4 k7 z E- j, L9 M
LOCALE_SYSTEM_DEFAULT, / r3 t) {* T. S2 k DISPATCH_METHOD,* l- G" K: ^: H: _
&dp,: o; g- Q1 P/ \5 Z# j5 W; `
NULL,' ?5 i- D: Z2 y! F# V% g
&ei, $ {" j- `% l+ E! i2 ]( A &uiErr); - _. l" p6 L7 ~* S2 E+ `# D $ v+ [. C# H/ J% O6 s, [ | SysFreeString(topicStr); * W/ P4 b/ B3 I8 A( L/ M5 J SysFreeString(itemStr); 4 v. m- g6 h% a. J6 H1 L SysFreeString(valueStr); ' Z2 ~7 E) L7 z% E+ O+ b# n$ A5 Q$ @' @3 n
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 h& c/ v- p N' m1 R3 J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????0 n& Y2 y7 V8 Z- h0 a' r8 Z5 c! U
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2.这是request的程序! `! D# m4 }# X' S
// Request a value from Extend 4 i- z# d9 l9 @/ ^6 m1 P" [//& i5 w o% b! p- M( Y8 I
// Initialize the variant that will hold the BSTR. Set the variant's+ L- h5 u1 g# a/ l- s4 I
// type flag to indicate the fact that this variant holds a BSTR. Place the 8 { E+ |* c8 T- r: G [* E// BSTR into the variant structure./ L) M2 C& x& ^1 i5 [
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% m+ [, [% i7 e: h t
+ `/ M9 X* B+ V. o, h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! j8 H' I7 d6 t! t9 ~
VariantInit(&requestVariant[0]); . ^2 ]5 n% m+ }. O
requestVariant[0].vt = VT_BSTR;4 x8 Y* ^0 B9 N. M' R
requestVariant[0].bstrVal = itemStr; ) I0 m& ]& O# N6 Y- _8 n' A+ {$ f3 F- S+ h2 @4 p/ p; ~
topicStr = SysAllocString((WCHAR *) L"system");5 p, w7 }. S% T/ D1 O" p& i
VariantInit(&requestVariant[1]); ! \$ r4 g/ A* G3 M% I requestVariant[1].vt = VT_BSTR;- T [5 U' j6 e3 I! q
requestVariant[1].bstrVal = topicStr;' _- d0 b/ u" |' [: f
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// Set the DISPPARAMS structure that holds the variant.8 c% }* s. v3 p( j& _ }# `
9 d2 ~' w3 I/ L dp2.rgvarg = requestVariant;5 k" ?; f s# V/ f* V9 c& Q7 y
dp2.cArgs = 2;) O2 ]: A! F: W$ b& {- T1 @' B# J+ A
dp2.rgdispidNamedArgs = NULL; , N3 }# d% V0 X6 x$ y8 w* R8 M dp2.cNamedArgs = 0;; v# _. o/ L2 R2 Y. y
+ Q+ N1 {9 M/ a5 i! c0 g var.vt = VT_EMPTY;5 m/ e0 x q7 s: y