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:/ s! y4 x9 c7 p# w/ M, Q' \
Name = (WCHAR *) L"Poke"; 5 n6 w4 T8 K) j 3 v% H- z0 |4 i7 e5 X5 s
hr = m_pDisp->GetIDsOfNames ( 6 A1 U+ A. ]( O: s, C IID_NULL, // reserved $ {. {9 B& @ T# D &Name, // Array of names to get IDs for 5 D; \9 E; O( B% Z' B, r 1, // # of names in the array& e7 s/ H2 b1 b2 w
LOCALE_SYSTEM_DEFAULT, // System locale" C$ ^; g7 N" i
&pokeID); // Array of IDs to fill on output* g: ]' V; D; \
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if (hr) ; \% a- i* t }% f {7 F f9 ]; H1 J7 N8 v$ s
MessageBox ("Get Poke Unsuccessful"); , |& l' o2 F* R8 T return;7 Y. O6 E9 k0 ~; h
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# U5 q, ?8 C4 ]/ ^$ f4 j/**************************传递数据给extend**************************************/ % x8 v+ Z2 R: H6 l$ T! A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " l: o4 M7 d3 x6 C/ J+ d $ j+ O4 h$ b/ `5 }% r+ h valueStr = SysAllocString((WCHAR *) L"1232"); 7 |5 f) v+ g: D6 g VariantInit(&pokeVariant[0]); / S1 g# D5 ?# q" f
pokeVariant[0].vt = VT_BSTR; $ F! Z* A! {2 s! b a% P pokeVariant[0].bstrVal = valueStr;( f) s$ b) B m8 a! s8 L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; f. J. S7 H0 H0 H* [
VariantInit(&pokeVariant[1]); - U: @' H/ L% y- y& w# p
pokeVariant[1].vt = VT_BSTR; . h* [" k" o% Y pokeVariant[1].bstrVal = itemStr;. ?7 v+ @2 A' E# x u2 O
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topicStr = SysAllocString((WCHAR *) L"system");9 }- c5 j8 H; M2 M9 P2 T- W `
VariantInit(&pokeVariant[2]); % o& E) F- |5 _ pokeVariant[2].vt = VT_BSTR; - _. v" k) @- X: w2 W2 S+ O! K pokeVariant[2].bstrVal = topicStr; ! u1 q) W+ Z* ^( p. v# F# D: K5 {- ^2 p: B( {+ ?
// Set the DISPPARAMS structure that holds the variant. + | k# Z& |5 M% T) M 9 I; |& l) _* V' v0 ?( m; D dp.rgvarg = pokeVariant; . P5 [. v. r. X/ J2 Q* W- D dp.cArgs = 3;- Q5 R2 }' ~; D. U1 |% g- {6 M
dp.rgdispidNamedArgs = NULL;# I+ D, b I5 G# ? `: p o4 d0 i
dp.cNamedArgs = 0; O& E# d4 x4 U/ L. m$ I" Z 1 L6 l1 n4 {$ ?) q, R1 |3 ]// Call IDispatch::Invoke() 2 w3 F. z) c% Z5 N + `/ V4 C' `, ^$ [& e. B hr = m_pDisp->Invoke(8 Z2 Z1 [& ]+ E5 ?) M
pokeID, $ A+ }+ _9 U Z' v1 t. G0 g: f IID_NULL,/ }, G% H* O5 \5 g) ?- f2 q
LOCALE_SYSTEM_DEFAULT, ; M7 _& e8 j% @) d8 K DISPATCH_METHOD, % c" z9 u6 J9 z &dp, " n, O6 u8 T4 \ NULL,+ w x0 r V7 ]* A1 u/ C) ~( Q) s
&ei,# Q* P' d- f2 _) R _6 g+ j
&uiErr); $ s. h, @! ?- o9 o3 D4 P 2 |- d6 r7 A1 {. f9 U0 o% o SysFreeString(topicStr); ! j, j. \% ^- t: N/ _! P SysFreeString(itemStr); - |1 a2 q2 _7 F0 O SysFreeString(valueStr); , V+ T% {' p% h% r! e/ L s' Z1 k+ H. x1 o d4 D1 `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??? " w0 b" P$ ^- A+ u3 \4 z* |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????8 M& J* g7 `5 L) }9 ~# E; f: H& ]
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% b. D3 n4 k _! t! @* F9 g2 {2.这是request的程序+ `$ x+ Y: u# A3 R/ b0 G) m# f1 ~4 G
// Request a value from Extend 2 [! c; P8 X" D2 y* F// Y) _9 x% c2 ?2 T7 _// Initialize the variant that will hold the BSTR. Set the variant's6 G4 M, B8 l2 W' ?7 ]1 @
// type flag to indicate the fact that this variant holds a BSTR. Place the9 {0 h: ]& W& A m- Y5 w7 q& S
// BSTR into the variant structure." }" a# ]. ^/ m }
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 u) v4 \" x0 c; Z8 _7 C # A5 q% c0 A6 ~" B
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; y4 J2 ^9 e3 ?( N
VariantInit(&requestVariant[0]); % q1 e4 | K. m# W/ f requestVariant[0].vt = VT_BSTR;# s1 c1 D) n3 t4 P! b( S" D
requestVariant[0].bstrVal = itemStr; * H! @- O! r/ b4 v B2 l, ?1 F0 \6 e1 l
topicStr = SysAllocString((WCHAR *) L"system"); ( i" g6 U% D4 c: ^2 `2 R VariantInit(&requestVariant[1]); ) t# p' [, v$ ^5 W$ W" h4 u6 n requestVariant[1].vt = VT_BSTR;2 {0 O. \( s. O# E) u0 ~
requestVariant[1].bstrVal = topicStr;. U$ D: k! [. |% L8 w Z* P5 D9 K
5 @- i7 {$ y p) U% i// Set the DISPPARAMS structure that holds the variant.1 w% K9 T! M- s5 |# V; B! a
1 ~$ \: W. D: \+ }' r dp2.rgvarg = requestVariant; ! q, i9 h" C; x9 O) n dp2.cArgs = 2; 4 M0 L; ` X6 p9 }! t% U dp2.rgdispidNamedArgs = NULL; : Z& F0 B$ K. B5 s. G dp2.cNamedArgs = 0; 7 O1 D/ n; U8 e$ P: p- s% F( [- k 4 z" h1 C9 ~1 Q. V" o) }) m8 m var.vt = VT_EMPTY; 7 d7 q, l: X0 s9 ~3 X4 _: g' j r1 z 5 X }0 k9 {( B& s) Y// Call IDispatch::Invoke() # i5 a$ I& E/ q& H& d3 g! |( s% R9 O
hr = m_pDisp->Invoke( ; U6 F2 A: F3 D! ]; B7 A$ _# X, I requestID,0 e% {; M$ p7 p- W, j& ?
IID_NULL, - \8 @- t: { z! x LOCALE_SYSTEM_DEFAULT, * F% A1 l7 x" ~: y+ R DISPATCH_METHOD,. G# ?: h7 V+ Y$ w! b
&dp2,/ R6 g9 s0 o9 f8 N/ q( m. R
&var,7 H4 G& Y, @/ W. u
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&uiErr);7 N- S2 @. b/ y
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SysFreeString(topicStr);" t9 |7 b& o* F) ^9 s) Y
SysFreeString(itemStr); 6 M) w! ?2 I. l; Z7 v+ k+ M, Z请问该程序是获得extend里面的哪个值? ; D& J6 k9 D4 q8 @, r6 W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????