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: ; F( C# _: b9 l' f5 yName = (WCHAR *) L"Poke";0 U) F3 m! f2 q$ {5 _: S+ t) R
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hr = m_pDisp->GetIDsOfNames (' h) _0 M4 E7 ?* F& x+ Z( I
IID_NULL, // reserved $ [! T: o: `' Y( v! u &Name, // Array of names to get IDs for * e4 u k- D( S* v0 C ~1 g6 h; F 1, // # of names in the array M! d- G5 V/ i5 n* l- R+ M$ N LOCALE_SYSTEM_DEFAULT, // System locale* A2 f( V0 o# N& p0 m' f
&pokeID); // Array of IDs to fill on output' }2 B g2 n( f1 Y
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if (hr)! C% c/ W1 A- n A: Y, J8 g) ]
{ # R8 H' ]1 g8 d5 G$ d$ F MessageBox ("Get Poke Unsuccessful"); ! o5 b& J2 g& x; @& |) N. C return; * X3 G' @1 p# T' ] } 6 D# \- }7 t, n4 m" n0 _( \: h, }% \# ~! W: m
/**************************传递数据给extend**************************************/ 3 |, Z0 ~( q9 f5 { pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 ^1 M! ^/ ?& V( y) j : j5 r! t5 d/ G- z5 _" ^1 V valueStr = SysAllocString((WCHAR *) L"1232"); + |! S% f1 O: _ O8 z VariantInit(&pokeVariant[0]); & U' D( p* }$ }$ P pokeVariant[0].vt = VT_BSTR;5 J$ |5 G) \1 @: @: z- S! T* G8 A
pokeVariant[0].bstrVal = valueStr;9 ?2 K. U( K' u7 e! [: \) C- j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ d2 W, T n0 X* w2 o* h. {
VariantInit(&pokeVariant[1]); ; V6 k' D4 X( D
pokeVariant[1].vt = VT_BSTR;+ T7 @/ B% [5 }: L( y z
pokeVariant[1].bstrVal = itemStr; + _0 E1 I2 _" I1 z5 J9 G' X2 C7 p% O! X) |6 w8 o
topicStr = SysAllocString((WCHAR *) L"system");/ r. |) D/ i! j: ^
VariantInit(&pokeVariant[2]); $ Y3 P8 _$ V5 @2 W pokeVariant[2].vt = VT_BSTR;- D! G2 G" e' B$ Q2 S
pokeVariant[2].bstrVal = topicStr;- q9 _8 [' y; N7 G% }; R5 m1 o
1 U) Z I: \1 J& w3 v// Set the DISPPARAMS structure that holds the variant.5 Q& \5 T3 w/ h
# ~$ n9 M) A$ e! W4 R dp.rgvarg = pokeVariant;$ U+ {( I1 X* j) E
dp.cArgs = 3; 2 P/ w9 ^& r: U$ ?- }+ y! V dp.rgdispidNamedArgs = NULL;- S' S" k1 R+ k! h( E
dp.cNamedArgs = 0; 6 Z! u- f' ?4 I6 m' Q: L' y: n( `) c: o+ m
// Call IDispatch::Invoke() + c# p: i! ?9 B( N7 }& n9 M$ c4 M9 W! L* X+ z/ [
hr = m_pDisp->Invoke(+ e( D# o# w1 p5 x
pokeID, ' s3 V( d5 j; _8 q+ I1 ]: r IID_NULL, / R! O; }6 Q( `; t4 y0 n LOCALE_SYSTEM_DEFAULT, 8 o4 R2 o6 t8 L- g X DISPATCH_METHOD, 6 K/ k8 B) |9 `8 S, X: D4 W. t &dp, ' T# B; e" X" b( {# } NULL,5 `* b5 u0 R K9 r
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&uiErr); G: m* n o1 ~. @/ i. J 9 m9 V2 D; |8 B* p( x$ c SysFreeString(topicStr);. ~$ e# q. x% t( K2 c( ]! E
SysFreeString(itemStr);# [0 V- g7 A# V7 [' [
SysFreeString(valueStr);& y/ `7 v- u1 ?3 c+ p
6 B3 d$ b: D' f; n. X6 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??? 5 H, n6 E8 [ x. ]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???? ! E6 C2 T& s! @: T$ B; n * v$ j( |- u; g& y: C/ T! L5 N7 o+ J4 c
2.这是request的程序 9 |" V7 Z9 R. W0 a// Request a value from Extend 3 n4 ?- f6 L9 n3 a// ; W# _ n" v) A" m2 F3 [' o- J5 P// Initialize the variant that will hold the BSTR. Set the variant's & x2 C! G7 q- @: r// type flag to indicate the fact that this variant holds a BSTR. Place the# e1 b% D- P/ O6 R7 {- x: n
// BSTR into the variant structure. / X K$ X2 N1 |2 D' q . {) o$ Q5 _6 k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: A; P0 t/ T4 S* ]" `% X2 O
! k' Q$ K& m# Y9 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ l3 M4 ]2 l) }1 t2 I* `" L( `6 `
VariantInit(&requestVariant[0]); ) ^ ^1 ` I" G+ J' z+ w
requestVariant[0].vt = VT_BSTR; 7 c6 D: Q% T# ^: Q/ ^: ? z requestVariant[0].bstrVal = itemStr;6 ?6 \ T( d8 C; p- x* l Q
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topicStr = SysAllocString((WCHAR *) L"system");/ f: k& f+ w0 d5 ]& [
VariantInit(&requestVariant[1]); 2 ?! E$ Y. I5 ^
requestVariant[1].vt = VT_BSTR; # i' q* Q* }3 y requestVariant[1].bstrVal = topicStr; 9 o2 U( s4 F- p5 F6 i 3 g @+ C, W& ~8 l" p# f: h// Set the DISPPARAMS structure that holds the variant.- ^ o9 L: F! W' Y( `& G, G9 c1 |
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dp2.rgvarg = requestVariant;% h. z2 Q$ l- F ]. R
dp2.cArgs = 2;+ V; y+ g8 F; V
dp2.rgdispidNamedArgs = NULL; n1 H) C6 y! o- Q- [0 Q dp2.cNamedArgs = 0;- v x: m* d* d& ]! M$ |. [