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: : Y" F3 y. G) f; `) QName = (WCHAR *) L"Poke"; 4 R! j; e5 r# v4 j. U6 x! w ' S% ~( @" u2 V
hr = m_pDisp->GetIDsOfNames ( # P3 l! a1 s9 o! G8 e IID_NULL, // reserved, D: w7 ?1 x0 |# c) q4 @
&Name, // Array of names to get IDs for : Q# e; Y( \3 ]+ [+ H# i 1, // # of names in the array ' P( F0 r2 [! r% } LOCALE_SYSTEM_DEFAULT, // System locale 9 g, S" X* o. O& L( ^" R &pokeID); // Array of IDs to fill on output1 Y9 q# P$ y% W# T, `
, a" m0 ]# [; J! P if (hr) ( t& b- I7 Z! k {# s1 q; i$ l8 U: m6 \. I) _" s
MessageBox ("Get Poke Unsuccessful"); ) i Y7 y% m- t! x$ M% U$ V5 N- A' g return; % ?6 x4 f& ?2 U5 G; R A$ s# n } 8 |+ |# Z" U" r" | 3 X1 J) s; W2 D5 R) A% a6 c/**************************传递数据给extend**************************************/; e6 k2 h3 O7 J* T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / D+ l7 w+ L! ]2 F/ ^" Z/ ]" g 3 Y) G% P, l. | valueStr = SysAllocString((WCHAR *) L"1232");& Y4 u: P4 N' x
VariantInit(&pokeVariant[0]); ' E& I* v% R- O* R7 a% n
pokeVariant[0].vt = VT_BSTR; ; `/ E! }2 j1 `, W pokeVariant[0].bstrVal = valueStr; 3 A5 Z; @ ~& ^9 a1 q/ \, A * ]3 K5 ~' s* f5 ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 H) }) s4 ]# N
VariantInit(&pokeVariant[1]); Z% U$ R1 a3 f8 K6 x
pokeVariant[1].vt = VT_BSTR;( W0 d) P8 Q6 n- Q* N
pokeVariant[1].bstrVal = itemStr;) j/ G7 [. {3 ], v8 G
9 P+ U, C/ @0 U4 B topicStr = SysAllocString((WCHAR *) L"system"); 0 j$ }2 V0 x8 X$ u& o3 Y! J VariantInit(&pokeVariant[2]); # C8 I5 b: ]6 L* ?+ i* X4 x pokeVariant[2].vt = VT_BSTR; 1 Z" b5 a9 e* t/ J: J pokeVariant[2].bstrVal = topicStr;7 l" |" s0 z5 d5 \
7 m [( d4 v! R
// Set the DISPPARAMS structure that holds the variant.( A7 ^7 p) X7 D7 Y& {
; G- i' F- i8 v) J9 Z( _ v
dp.rgvarg = pokeVariant; " F* s+ Q! V, F& _) L dp.cArgs = 3;( k' ~' I" e5 i
dp.rgdispidNamedArgs = NULL; 7 z, @" b! [+ f6 f2 z' D dp.cNamedArgs = 0; 3 W! n& l p: K5 A0 l3 `4 k2 V# w' ]; h: V8 z
// Call IDispatch::Invoke()4 m- G& L- r. q" `# M1 Z9 y- W
4 M& Y; R7 X! {! R! z# q7 I
hr = m_pDisp->Invoke(% f- q* }: P7 t+ n% _
pokeID, 3 D% o7 q/ l- k; j IID_NULL,8 C, r! K: w2 Q( N( H* N) T4 t' I6 D
LOCALE_SYSTEM_DEFAULT, / P6 d1 M7 |$ a' a) ] DISPATCH_METHOD,- u2 R, [0 A7 M2 A( u; {# A+ P) B
&dp, ) Z' }& K/ I( Z. B1 \- `( r NULL,7 ?+ g" \9 U8 V
&ei," I7 i# d$ l* s
&uiErr);% o/ F* Z7 w! n/ u+ |
- S* m) P' T3 ^' Q$ |
SysFreeString(topicStr); 0 A; A5 j4 F( o6 f% | SysFreeString(itemStr);: e8 X$ X1 l! F
SysFreeString(valueStr); " p2 ^, e; J0 p/ t! T. v' B2 ~
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???) A' ^" u% L2 V7 v
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 O: b/ Z) `) P; U. L7 D9 h- `- c* W; b7 |) Q
. p/ Y4 o0 N2 c. ]2.这是request的程序 m- N* [; F ?
// Request a value from Extend * @* A ^, g5 W. [; Z" \// ( _6 q6 r& @* F. c// Initialize the variant that will hold the BSTR. Set the variant's: l6 S" T- t: J- z8 ?0 O' t
// type flag to indicate the fact that this variant holds a BSTR. Place the$ p' S$ Q# I! k7 n- F) x
// BSTR into the variant structure. 2 [' t6 ^$ g ?- U2 V* z- [7 S& C $ I& v! l% l; P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 r1 E6 p. K2 l/ A# \+ j: o* i; J
% Z; p( c3 C/ \4 `5 J* Q" {& N5 S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 |- Q* S W+ o* R
VariantInit(&requestVariant[0]); 0 e- U- [5 F: b( q8 U9 u) A
requestVariant[0].vt = VT_BSTR; k- O0 H- g* f% m requestVariant[0].bstrVal = itemStr; + U m! m: J$ R) {; I9 l ! j( o4 H( G( g. U- q3 F$ W topicStr = SysAllocString((WCHAR *) L"system");# M, u: B2 W6 z* l( Z* }3 I7 e
VariantInit(&requestVariant[1]); : K, B0 A4 o% F# E' s5 _+ j
requestVariant[1].vt = VT_BSTR;; j! C; ~& N4 ~# v; i% i. w
requestVariant[1].bstrVal = topicStr;; e/ ^& i2 e+ b" m9 a0 T% v
T2 |" B) Z+ `: H8 w3 H, Z( m" Y
// Set the DISPPARAMS structure that holds the variant. - q6 B. m, e- a1 L, w4 E' g6 `3 _0 R/ n
dp2.rgvarg = requestVariant; $ |5 [7 D( l) D- M( d- U2 Z! F dp2.cArgs = 2; ; w. p; S2 m) B" h0 Y8 \+ S" \ dp2.rgdispidNamedArgs = NULL;; R1 ] k: d+ G; c! A9 x4 E
dp2.cNamedArgs = 0;" c4 c, _% E6 G% I- X- f
, B4 ^2 w, K8 T2 r3 p/ e var.vt = VT_EMPTY;6 T. E) i9 x, U5 }& J& w
; j B/ z6 y% q/ ^
// Call IDispatch::Invoke()) Q- S! o( ^3 n$ \+ S6 F
% M: V- l6 @ e6 _! Z) f8 B- Q hr = m_pDisp->Invoke( + F, w6 Z% X+ B( j, Y: M% W requestID,6 y$ |$ N/ O& j4 _7 x& I
IID_NULL, - R) v' ]/ r- @5 f- w+ t LOCALE_SYSTEM_DEFAULT,3 H. B& z2 b) B9 U/ k
DISPATCH_METHOD,4 p; z n5 w- N3 \3 i" x
&dp2, 2 u% P7 L. Q7 D5 a" i- R &var,( d& [+ l6 j+ X6 g: Z( S/ H2 I5 }% h
&ei, . V/ e) [2 d# s* u& I &uiErr); " p$ R' d" y+ t5 o 2 M3 K0 k; m- E$ r' \' X" x SysFreeString(topicStr); t, U" D+ [9 x. i SysFreeString(itemStr); 6 G9 d( i- \0 \8 V* g请问该程序是获得extend里面的哪个值? 3 j# W% v+ s: s3 u7 p8 g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????