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:2 X( a1 k9 ~3 Q2 m+ a
Name = (WCHAR *) L"Poke";, i7 t( j3 {* x0 P& ?( Q
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hr = m_pDisp->GetIDsOfNames ( ( e" M+ y& ?6 m- a, K- k5 O IID_NULL, // reserved" m+ p, ]. _: N$ C3 B
&Name, // Array of names to get IDs for $ b6 h0 `7 m9 ~- T( P$ [" h, T 1, // # of names in the array0 k0 J3 \! h- n5 b4 l: }
LOCALE_SYSTEM_DEFAULT, // System locale $ Y5 z; g/ V5 l( K, x &pokeID); // Array of IDs to fill on output # x6 C. J+ S& t8 y! ~) g9 e 7 K0 F& Q3 |- I6 J! `$ O4 t
if (hr) 9 s# T+ g7 |" l: o3 v- u { ; d) \4 m- X( x- l; A% } MessageBox ("Get Poke Unsuccessful"); 5 G" a; R* w- y- @9 y return;% N7 C: n& i3 V- g
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/**************************传递数据给extend**************************************/- c2 a. Z4 p, `8 [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 a5 Q) Q4 ~8 ~1 C1 R' B R! i- k4 d% X8 u valueStr = SysAllocString((WCHAR *) L"1232"); % ]& T6 d+ @) z/ J, V; X+ ? v) x VariantInit(&pokeVariant[0]); + H* _. c8 `# ^ pokeVariant[0].vt = VT_BSTR; 7 B7 u7 _. I' Z pokeVariant[0].bstrVal = valueStr;; |% v4 r/ J2 f. ~' t% V
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 H! N) |! e" e$ y0 h VariantInit(&pokeVariant[1]); 1 K6 ]" q7 @) k* D& C) v
pokeVariant[1].vt = VT_BSTR; ( j" ^" n( Q$ \( x9 y3 @& M pokeVariant[1].bstrVal = itemStr;) r0 U! J" y; y9 f0 O: I4 [
6 m/ }0 Q% w% R: w6 Z6 M, v topicStr = SysAllocString((WCHAR *) L"system"); , s1 N5 ?' x' u# n8 S$ U VariantInit(&pokeVariant[2]); 8 Y. b! T( D8 Z% i2 F) b* T
pokeVariant[2].vt = VT_BSTR; 5 `0 V& ^: I1 C pokeVariant[2].bstrVal = topicStr; 0 D# s$ H+ T0 y N) s0 o 9 ]: L$ f: g0 P1 J3 z// Set the DISPPARAMS structure that holds the variant.! b# L6 z0 q( u, w. _/ d
( }7 L/ a% b5 _6 u dp.rgvarg = pokeVariant;. b- K. N& W3 C( O9 E. H: V8 {6 ~
dp.cArgs = 3;8 I0 |* h2 O: W& |' c6 N' M- @
dp.rgdispidNamedArgs = NULL;3 T4 c6 e+ ]9 a! o
dp.cNamedArgs = 0; # H1 \7 ?. h. Q1 B2 Q " y* }7 z, Z4 S; e6 `* T3 \// Call IDispatch::Invoke() ' j$ m, x4 |' e# m! M ?! y0 V4 u0 q. ~' H2 r" S, R% U% m
hr = m_pDisp->Invoke( 6 B$ R# s- t% C0 m! Z pokeID,4 j9 X3 |; r& m" Z: |% C
IID_NULL, ) V) j7 i0 D+ H. N8 S LOCALE_SYSTEM_DEFAULT, - @$ Y% V1 s3 {7 Z0 W DISPATCH_METHOD, ( V' }" S' T/ i' A" t* f &dp,- e& a/ \1 z# x/ n" w' y
NULL, ! v; Y) L1 K$ R! q& C; D" L3 e &ei, + U: g* i. m8 w &uiErr); " }1 a3 B U0 @1 p- a' n/ f( a) K3 U( p& R S M7 ?) h ?3 A1 l
SysFreeString(topicStr); 9 b W+ O7 u/ X; C1 L; M SysFreeString(itemStr);- ?) X6 Y5 Y0 m1 x- i
SysFreeString(valueStr); 5 l% L' |1 k8 J# h% S# g2 ~9 H, l7 C7 I+ U5 i
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???* L( P+ z# j$ Z5 p, ^- K! a
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????+ R9 I+ U, U' {* X( M
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4 g% s% T1 U {* @2 n3 B" k3 ?2.这是request的程序 & J! P" |: B- W# C$ Q5 Y5 t. I* c// Request a value from Extend 8 @- n3 n; l% H0 X7 }% e// ) @, ?7 j% \0 X: l) d0 B8 g/ i// Initialize the variant that will hold the BSTR. Set the variant's 3 K- Q+ W: h' D$ I' O6 V// type flag to indicate the fact that this variant holds a BSTR. Place the$ o2 e& O; ^" Q; y
// BSTR into the variant structure. 8 v* X2 {2 V, v 0 ]/ S: R$ h8 @0 L% h# o8 n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# C$ C. `4 ^: H" B% ~6 q
9 n- y# C: O& s' Q0 }- [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 [( `. M9 e& f4 F) S5 a9 n VariantInit(&requestVariant[0]); 1 G2 l g, K& u: S requestVariant[0].vt = VT_BSTR;& h" a {# j; i- N/ R. F
requestVariant[0].bstrVal = itemStr; / r9 s+ K, ]) C9 o1 Q. ]0 D' c1 B' s6 R' J1 l
topicStr = SysAllocString((WCHAR *) L"system");* N# z/ `6 G2 z" H, S, A
VariantInit(&requestVariant[1]); : a1 L4 w4 ?3 `4 t* M& m5 T9 [
requestVariant[1].vt = VT_BSTR; 9 K4 A! S. i. z% E4 r requestVariant[1].bstrVal = topicStr;* O# p" j) @, s$ z6 m
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// Set the DISPPARAMS structure that holds the variant.( ^3 _& d9 v- J6 A9 R x. y. G
3 H# H, o8 _* Q, a9 M9 D dp2.rgvarg = requestVariant;, c& ?) X! U8 ^2 ^* ^+ V
dp2.cArgs = 2; 0 z! M8 \! F+ ]& ]9 H dp2.rgdispidNamedArgs = NULL; i# p: S/ w% p
dp2.cNamedArgs = 0;" ^# R; {9 O. a+ |' j: L! ^
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var.vt = VT_EMPTY; g- t% f; `( a! f, ]; I0 K: ]1 s$ E
// Call IDispatch::Invoke()& ~: p# e3 ^5 Y4 z8 {: a5 V
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hr = m_pDisp->Invoke(8 ~, P1 p* T9 Y6 D/ k. ^
requestID, , V7 \' F6 C. g# J% C IID_NULL, , Z3 r: U8 k) u" E) C N8 R LOCALE_SYSTEM_DEFAULT, 9 O) m' h4 l/ B- B DISPATCH_METHOD,1 I1 B4 P' z5 K q7 n
&dp2," u+ J/ W6 ~1 U; i
&var, 3 p/ u/ d( s4 a &ei,7 b5 C2 {& M7 |, H1 b3 S
&uiErr); ( m- v/ Q L; u, S: ^" q, G* T& i* P: i# T! D
SysFreeString(topicStr); / P. ], g/ o9 C$ C7 v4 ? SysFreeString(itemStr);: P" x7 n' d( |+ i" S$ U' O
请问该程序是获得extend里面的哪个值?% h2 `+ k+ p5 B! L9 l
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????