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 Y2 F$ ]' ]$ A) O
Name = (WCHAR *) L"Poke";1 z) w; P* t1 S% K1 F5 u+ q7 b; D
& G a1 }) D, C0 G- D3 u; E hr = m_pDisp->GetIDsOfNames ( 8 j- N* t: Y$ P1 Y IID_NULL, // reserved 7 ~3 w& I; ?! @9 ` &Name, // Array of names to get IDs for8 s$ e, B; j8 n; ^9 o7 N
1, // # of names in the array : P: t$ n* I1 H( I/ B LOCALE_SYSTEM_DEFAULT, // System locale / E6 `) n& N* h: F" X' b3 F &pokeID); // Array of IDs to fill on output/ { ^+ ^$ p9 h, Q- v
. i) g; P( |# n7 E- r( I& f if (hr) 1 |6 y9 `5 n% w0 z) g* [ {% \- M2 c6 V5 c" L
MessageBox ("Get Poke Unsuccessful"); ! F* R5 |+ b; ^7 f& c' v# d2 O$ w return; " G i2 n# s M; U% @7 R! ` }1 H/ s: I3 S* j
/ L% w4 e5 C% s& m& j0 I/ ]/**************************传递数据给extend**************************************/' ?% T0 f# S" ?, T2 Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; q" R, x E& o. t: r* S* @# K9 h 4 y* k7 p6 m1 U
valueStr = SysAllocString((WCHAR *) L"1232");9 ]$ p& N) o# J( N8 D& a
VariantInit(&pokeVariant[0]); * g8 B( d/ X/ K8 @. Q pokeVariant[0].vt = VT_BSTR;$ \# {, U7 f" j6 g: B) l' U/ f) t
pokeVariant[0].bstrVal = valueStr;+ u8 B5 V$ I9 w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( ^3 R3 w5 V! w! Y( j
VariantInit(&pokeVariant[1]); 3 }5 M" h' R4 {$ [# i
pokeVariant[1].vt = VT_BSTR; - a) {+ { O \, i. D pokeVariant[1].bstrVal = itemStr; 8 o" e( P2 U4 Y6 ?3 f$ c7 h$ N. |" |: @1 f* i+ k' h2 D9 k2 W+ ^
topicStr = SysAllocString((WCHAR *) L"system");6 O8 _# l: V. B1 M7 ]+ [* d
VariantInit(&pokeVariant[2]); % E4 h4 D9 H4 u. l8 @ pokeVariant[2].vt = VT_BSTR;# F8 M+ `/ P' v, V! U+ X$ H6 t
pokeVariant[2].bstrVal = topicStr;0 }2 u# K5 v! n) C) d
. Z; h8 d: J6 T& {8 b8 O; H// Set the DISPPARAMS structure that holds the variant. m4 ^- \- } y% Z5 P- D5 t ) v9 S" N! X9 h5 i dp.rgvarg = pokeVariant; & I* q l7 r; K! L dp.cArgs = 3; ) N4 ~( n: b6 v. r/ A$ ? dp.rgdispidNamedArgs = NULL; & b; D" b" x6 W8 \" s0 a) _. C3 J dp.cNamedArgs = 0; 0 c/ Z. [8 l$ y 2 K5 K6 v% d: `) e' D. ]7 B1 J// Call IDispatch::Invoke() ) b9 f" M R! h 4 t0 P0 Z: B; s9 D$ D- H hr = m_pDisp->Invoke( 3 s& h* Y& B, i pokeID, D9 D1 ^; ~9 ?1 P
IID_NULL, , y+ K& s2 h9 K, w0 i ^ LOCALE_SYSTEM_DEFAULT, 6 Q% H1 L" p+ _1 B/ \! y; l* o DISPATCH_METHOD,. M O E9 J! F5 T( h$ X( o
&dp, 5 a/ q+ b4 Q; n, y+ a NULL,% C2 Y |6 _( ]1 B4 g4 f
&ei, : u' ^, k/ a2 u! r &uiErr); 6 ~$ H% ] {* a# i5 a 7 e- s3 O" s3 b) |. ]1 n# x8 V- i/ e SysFreeString(topicStr);# {: {! s' [4 t& i
SysFreeString(itemStr); + `7 U' h# e% b( a9 \! d SysFreeString(valueStr);* P$ O, ^) e+ E& S9 }3 E
8 [ \+ c4 V2 u. P @0 ]3 W
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???2 M2 ]# Y; y% X5 P
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- H9 s/ v6 }" b( }! Y. ^7 M/ A ( k* E/ K1 S+ t+ o* g6 }8 B$ C+ T0 u4 ?' z7 U7 ^6 K/ w
2.这是request的程序- y# {) E* p" G& y, P4 p
// Request a value from Extend # A7 G) J9 G& g' m7 w* o0 e& `2 J// # O( h- z( i9 Q/ u4 f// Initialize the variant that will hold the BSTR. Set the variant's $ W: H5 {$ F7 I6 V" m' O0 L7 P// type flag to indicate the fact that this variant holds a BSTR. Place the2 h+ N, ^$ f* l7 p3 ?6 E
// BSTR into the variant structure.# K; | r( s: e
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 {- S: Q# n8 s3 z+ F. `
8 r" l6 S5 K* a8 c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# d* f+ A/ F' S" o3 U
VariantInit(&requestVariant[0]); . G9 C9 Q! r4 y1 Z8 x' ?
requestVariant[0].vt = VT_BSTR;% o7 z, } {- y; V
requestVariant[0].bstrVal = itemStr; 3 v0 L- C5 y. y/ h9 R/ I: \. I' Z% @; x6 ^* u6 T
topicStr = SysAllocString((WCHAR *) L"system");) _/ N, G: c8 V% H9 `9 O
VariantInit(&requestVariant[1]); ; _! `+ n" \7 y! l" N: z requestVariant[1].vt = VT_BSTR; 2 y" ]. }2 V$ V( l4 O requestVariant[1].bstrVal = topicStr;8 O2 U5 A6 o; g$ s7 g* G9 B
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// Set the DISPPARAMS structure that holds the variant. ( t1 n6 g" c! i" B. R/ K / W1 a) V" i6 m dp2.rgvarg = requestVariant;: n8 N6 M# W9 r7 N
dp2.cArgs = 2; : ^/ r: ~0 k6 K% ~, h dp2.rgdispidNamedArgs = NULL; , B# h: X& G! P: ?2 k5 ~% E dp2.cNamedArgs = 0; 3 I& u! i$ g1 n1 c+ o, H, @ 9 f' w0 r" p* x9 Q' B& w var.vt = VT_EMPTY;! [& S, y3 V; U
{ a2 I s6 A/ V0 c" Y// Call IDispatch::Invoke()- I" I, v* h! f) j- G8 L' ?
+ {+ s3 @& _! [0 O! \8 {: U, z/ P hr = m_pDisp->Invoke(6 B& G4 s# w. T1 l! i% w
requestID, 1 X8 p: Q/ S/ B$ J+ V8 N IID_NULL,: `$ y s* N% ]
LOCALE_SYSTEM_DEFAULT,6 a9 ^# \: E8 {
DISPATCH_METHOD,3 C% o: R! e- U
&dp2,9 p& Z0 y+ v, X: h$ T+ z. ?. g
&var,, v* L5 ~* J( X' y! S$ M
&ei, : T. A' T, x' d W( Z, i) Z% p: ` &uiErr); ! V, l; ^# A+ W j0 N- x1 }( F3 |7 O8 u6 y1 R- W
SysFreeString(topicStr); 7 z$ M& i( s" k9 K' C. V: t h! P SysFreeString(itemStr);, p7 J( Q$ s/ }4 r f, g- L
请问该程序是获得extend里面的哪个值?- T T, k" m( w" h. [1 D
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????