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 H+ T9 j+ w6 N2 x s# ~Name = (WCHAR *) L"Poke";8 L3 J) i0 ?( e+ i, @% I1 c
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hr = m_pDisp->GetIDsOfNames (7 x! v0 X& \( ~9 j+ @
IID_NULL, // reserved , `4 b- E4 u& M &Name, // Array of names to get IDs for - F/ H) F9 y! o/ n: v5 [7 w' u 1, // # of names in the array . w8 Q5 y0 A9 Z LOCALE_SYSTEM_DEFAULT, // System locale 7 e. {& F0 H1 Y! }& H, ~& A &pokeID); // Array of IDs to fill on output + z' ]8 z& M5 n2 A 4 C- k+ d0 C. C if (hr) . f" _& Y. Z# j! Y. I1 }" w { ! ~; h( v9 E9 o) Z7 J2 i MessageBox ("Get Poke Unsuccessful");: } F" B5 n0 w. l E% Q
return; 2 m. z8 Y2 e1 Q+ W1 i8 Z }: H% {1 t! F9 X' N9 {" i, g# n
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/**************************传递数据给extend**************************************// V% r/ T4 Y4 a! t( ^7 `* ]) a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ @+ e A& \$ m3 R1 T " |7 O J& |4 V8 w5 W% ]
valueStr = SysAllocString((WCHAR *) L"1232");, ?8 j; x) h3 k1 U+ P
VariantInit(&pokeVariant[0]); 0 G+ `" b6 l' g$ S, O pokeVariant[0].vt = VT_BSTR;" _; l( u' o$ M9 p4 g
pokeVariant[0].bstrVal = valueStr;8 ]5 W2 P- W& b1 S1 ~& ^) W
! x! v, X! a+ [1 {9 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# m$ J* N1 v, Z2 e6 ^1 {- `
VariantInit(&pokeVariant[1]); ) s: M% d' R- h( v5 B1 o* w
pokeVariant[1].vt = VT_BSTR; 4 A+ w6 m8 x2 W! ~ pokeVariant[1].bstrVal = itemStr; t( [! p# w" V, o2 B x0 V8 g$ V9 b2 y% } U& l- h. S5 o; v
topicStr = SysAllocString((WCHAR *) L"system"); ; I, F8 u! u5 I6 B1 q VariantInit(&pokeVariant[2]); - r! w. K/ d6 F0 b1 m" t" | w \
pokeVariant[2].vt = VT_BSTR; . W# z4 ^2 V* c' [/ }! E pokeVariant[2].bstrVal = topicStr; 6 o. r3 m7 k; s/ T . }" Z( c+ z. ?5 t$ O. F// Set the DISPPARAMS structure that holds the variant.! N: M$ D6 Y' H. x6 E
; U' q# | S% s dp.rgvarg = pokeVariant; . K- l" ?" s3 a; U" F& c9 c6 r dp.cArgs = 3;0 D; O6 F; \$ A7 X
dp.rgdispidNamedArgs = NULL; ! I5 J! C. h6 L* F# ? dp.cNamedArgs = 0;- {8 V N" d) @: s$ q j; `) J) i
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// Call IDispatch::Invoke(): ]8 N7 x; ?; c1 w
; q+ o `. i6 R# Q2 l hr = m_pDisp->Invoke( , \! s! _+ [1 J% D; w8 z pokeID, Z0 z/ `0 D4 N; C5 U5 h* f. `, i6 _ IID_NULL,9 n1 V9 K3 M" ] U0 [5 ~! X
LOCALE_SYSTEM_DEFAULT, & k; M9 R9 ?. N9 K/ I( P DISPATCH_METHOD,7 [* q% m$ |; R2 y
&dp, / c X8 a+ Q& e( b2 e; Y5 } NULL, + N. t) f- ^/ I9 `; p$ H. T &ei, . m0 g. |$ x& p& G) T1 ~ &uiErr); 7 k) m6 f% }, X - @5 A: K: g( {0 y( ~3 } SysFreeString(topicStr); 6 I3 C2 E" D" |* h( g SysFreeString(itemStr); 2 `3 n: u: z$ w0 d SysFreeString(valueStr); , v# _4 k/ O: R/ H% E8 { ) l3 V9 U* \) ^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??? ) n3 j' `9 ^7 e8 {- @( q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????) g( q T5 Z* w6 _
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: A( Z* ~: X4 V. ]; q2.这是request的程序 & }/ Z L; ]+ j2 j// Request a value from Extend " ]0 q' u+ L+ [% e// 9 m# n) e- y% a/ b! K4 ]% y, M// Initialize the variant that will hold the BSTR. Set the variant's + [& s) U0 \7 e+ b8 O$ O; Q% A// type flag to indicate the fact that this variant holds a BSTR. Place the+ O' ^& _$ g- X6 Q. S% ~6 A- n
// BSTR into the variant structure. % o- u4 l- w: S- s& F# m5 z, i s% a+ C' I4 O# t
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' V" E3 k0 B. x+ \& ]- f
8 c M) \% n# j$ C7 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% b8 p& p" ?- L% j2 E4 v: X$ V
VariantInit(&requestVariant[0]); : \; n9 s4 v6 o3 d7 P requestVariant[0].vt = VT_BSTR; & O$ r# B; ]' H, C, V4 h! x requestVariant[0].bstrVal = itemStr;8 v' r5 ]4 c9 q! q+ B
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topicStr = SysAllocString((WCHAR *) L"system"); - {2 Y& s, n. k8 s VariantInit(&requestVariant[1]); ! a) w7 H- Q5 v% z( a5 O* N& e, e
requestVariant[1].vt = VT_BSTR; 9 W8 P; B v! l! V: D, P requestVariant[1].bstrVal = topicStr;! L2 {- U: v- h7 P" f
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// Set the DISPPARAMS structure that holds the variant.- X. Z, X2 D3 o4 X. H
; M( C) B, u, y" Y; Y$ W dp2.rgvarg = requestVariant;8 R6 k- h* a' U% B+ Z5 R& e! I
dp2.cArgs = 2;; { y1 r8 P }5 N
dp2.rgdispidNamedArgs = NULL; , S8 ^" d! v8 o5 ~2 q$ k dp2.cNamedArgs = 0; 4 a4 o' s5 d2 @+ b6 W& H y6 y 5 f0 o+ m% v8 P; n var.vt = VT_EMPTY;+ F- G/ l; H1 t7 ~5 L; c! o: P