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: 4 G$ y6 f5 }% N$ |2 u) R3 qName = (WCHAR *) L"Poke"; 9 k& H1 G1 }" A, [& l2 \$ X' k" i . |- c- L- B' |% q, d hr = m_pDisp->GetIDsOfNames () ], n8 b* k+ x
IID_NULL, // reserved : H, u: u$ e, t: t. V$ m `7 w &Name, // Array of names to get IDs for ; \& p2 ]/ v0 w9 \) i 1, // # of names in the array % [% j1 }: Y J5 m* m LOCALE_SYSTEM_DEFAULT, // System locale3 `$ J* x2 O+ F# z
&pokeID); // Array of IDs to fill on output 7 T" N! J: o, k ; v6 s D' _4 E. R/ s; p/ T! Y* K if (hr) 7 x6 _2 t% D3 z' k A {) y% I- W: c0 l7 h$ _
MessageBox ("Get Poke Unsuccessful");( X! ]$ b H& m' Y f: [; p
return;7 v+ `8 N" l% H5 f2 b! W8 `8 S5 {
} ' D9 X" Q! K! X L5 F9 x 6 C2 T4 s( U/ z- a5 C+ G7 J/**************************传递数据给extend**************************************/ 6 d/ Y# K7 c" K: n* D: l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: @) t9 E. h. V
4 o; x3 d+ r8 p# B valueStr = SysAllocString((WCHAR *) L"1232"); " I! v( |& X1 R; w VariantInit(&pokeVariant[0]); / Q ~0 x3 L/ _/ @' `1 s* i* u
pokeVariant[0].vt = VT_BSTR; / ]( @* M8 q: b8 B6 S pokeVariant[0].bstrVal = valueStr; : w/ q, k2 p, \; S K: C$ e. h7 t/ g. A0 D5 B, L& m1 ]$ F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& V* t8 R2 d( A
VariantInit(&pokeVariant[1]); . q& x5 Q2 K& q( Q: R7 u pokeVariant[1].vt = VT_BSTR;3 |: E e; |& B: Y! h( c- q5 o
pokeVariant[1].bstrVal = itemStr; : S, o. I6 G- b) P- m- z8 ^' s! T: {) r* H. ^( B
topicStr = SysAllocString((WCHAR *) L"system");: M% i5 P: f- g' R
VariantInit(&pokeVariant[2]); 6 e( }. K8 y8 e2 m
pokeVariant[2].vt = VT_BSTR; - O& l$ M8 ?8 @. x1 r7 V9 c pokeVariant[2].bstrVal = topicStr; ' Z, R+ ~, C1 [: g9 N4 i & ^+ ]; x9 }$ e+ O$ N' |// Set the DISPPARAMS structure that holds the variant. 4 s3 S+ c% [- I! q" B, | % ~0 {3 Q6 [ y dp.rgvarg = pokeVariant;' E& `8 V7 d" v/ a4 }
dp.cArgs = 3;8 E9 S: Q2 `2 |- u1 r4 q+ T
dp.rgdispidNamedArgs = NULL;; v0 F# _0 j- C, ^
dp.cNamedArgs = 0; 3 f7 ?/ e% R! Q2 H+ I) G ; o) z2 r+ L" |' V' t6 C+ d5 j// Call IDispatch::Invoke()& i4 I7 p# N% W* Z. i1 {/ b' i+ P
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hr = m_pDisp->Invoke(% n! t- N g% X# n; Z5 p
pokeID,! L* i' V, S1 `# d: `2 i, Q/ _
IID_NULL,! S$ H/ D% e8 k {& J3 P$ o9 Z
LOCALE_SYSTEM_DEFAULT, 5 s4 I# u7 P- l' O8 C# @) f DISPATCH_METHOD,8 Q o- ]+ F( g- j* X
&dp,9 f, ]% U. F( J2 W' g
NULL, . `- J- t5 a* b: a' t$ N &ei,7 w: k, n% v" P
&uiErr);* m5 g w9 M1 L' V
" |/ j) f+ I* K# r5 ^- n; B2 L
SysFreeString(topicStr); & r8 p: J: `! w: q6 Y SysFreeString(itemStr); " W8 ] d4 ] J; F7 P( C SysFreeString(valueStr);* O* V3 [ r& S2 h0 j4 y
9 R4 R6 n' s$ e5 _$ [
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???( T6 ?1 A( H3 N8 F
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???? 6 ?( x0 H" p5 V) f' a* n7 ^9 r2 A2 [
O1 w( \; t; z# d2.这是request的程序! z( R1 I w( c( n: U H* F
// Request a value from Extend; p6 z9 V9 \' y% X
// " ]0 t; @ i. ]* U// Initialize the variant that will hold the BSTR. Set the variant's* A0 ]+ n. D9 e# E' n' x- H
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 s0 }" p* z0 U6 V6 N// BSTR into the variant structure.' m1 Z9 U9 S0 X: }) [; b$ s/ f
8 W, |8 m" P+ u5 z5 L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 ]8 X+ g; C7 o2 }, m3 ~ 1 j- L' C- p. R6 ?1 ?$ t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. e8 Y( O! h. A9 g6 [6 {
VariantInit(&requestVariant[0]); , d0 A1 a9 N8 V& Q; w( L
requestVariant[0].vt = VT_BSTR; - b5 O2 K2 J8 V0 Z5 ]0 C3 O requestVariant[0].bstrVal = itemStr;. g8 u! G" g1 j/ L
5 z! Y* ]# S5 L$ v' ?6 G3 d2 |
topicStr = SysAllocString((WCHAR *) L"system");2 H5 Z7 a2 o2 }3 N& A
VariantInit(&requestVariant[1]); ) y. e, t! l. D6 Z1 m0 l6 N/ ^1 W/ U* `
requestVariant[1].vt = VT_BSTR;. V1 r6 \. U( n6 Q$ o! n( r& j
requestVariant[1].bstrVal = topicStr;. p' D. G2 F+ B2 n. `- X' C
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// Set the DISPPARAMS structure that holds the variant.- A1 o2 {" ?( u8 [% a& o! t: z
' ? `: e! u) x j+ g& m( |+ I dp2.rgvarg = requestVariant; 9 y2 p. _( J+ E: x dp2.cArgs = 2;9 d6 X! {% d. N7 [, x
dp2.rgdispidNamedArgs = NULL;6 P" C M O: s9 b- h- b- D4 H
dp2.cNamedArgs = 0; 0 m% x+ G; q6 s+ r9 t6 p: B4 V1 [ - _- W u/ M- k) u6 V: _; P- l var.vt = VT_EMPTY; 9 e2 v( L) \9 D4 r% }2 a7 i ( R( n) c" m' x' q// Call IDispatch::Invoke() . _0 Q0 r# V6 L# P5 n ~/ z! e! X+ H% t
hr = m_pDisp->Invoke( 0 R+ f1 y2 d+ c0 L/ [+ c2 U2 S- j requestID, " r0 a2 k3 r& V IID_NULL,/ K; j: [; z: G: ]6 i* N2 ?$ h2 O
LOCALE_SYSTEM_DEFAULT,1 Y1 a6 m% w! i' S2 r1 y6 P" w
DISPATCH_METHOD,4 @$ v8 r/ z) d6 R8 |
&dp2,$ w% j* l6 ~8 ^8 G* }3 a& f
&var, & m, J% c7 i' `$ K# B &ei, * Y% _4 M( v' z/ o- h* ~ &uiErr); & ^% f# ^! s- I; s; S* e0 X 5 l1 J: s6 ~ V" ~4 q SysFreeString(topicStr); B! E/ }! G. Z) F' x& ^$ a
SysFreeString(itemStr); + _! R# U/ P' e# J请问该程序是获得extend里面的哪个值?% ~; M/ P7 H2 B% V
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????