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:( U0 w& x! w8 a
Name = (WCHAR *) L"Poke"; 6 L4 I' }1 X) P% g c7 P - o# u1 @1 ^8 o" C7 h; M, E! S3 i hr = m_pDisp->GetIDsOfNames (" D8 K- {) A5 H6 Z6 R$ \+ y) K( m
IID_NULL, // reserved& T0 |8 [- O, P
&Name, // Array of names to get IDs for " R: ~( t/ H1 j+ M" V4 H$ U 1, // # of names in the array ! V' t/ @, @- J* ]- _; _ LOCALE_SYSTEM_DEFAULT, // System locale + U/ D8 |1 T+ W, K! j8 h3 c( L- F &pokeID); // Array of IDs to fill on output 8 U0 E9 z* b; W6 b4 ~' n" B 7 Z7 i O/ C. O) D. Z1 v9 b
if (hr) ! n. \9 l N7 C. u: M/ A {( N# J3 `) f; d+ X2 U' V8 b5 x7 I
MessageBox ("Get Poke Unsuccessful"); $ Y8 {9 d9 [) R( a' n& R return; & V# q/ f7 x8 @* Z } 5 i# x9 ]+ q0 G 2 E+ k& _* M6 W* C+ ~& Y6 O/**************************传递数据给extend**************************************/0 h$ {4 y% Z% Z1 {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ C5 J3 U" [* V/ a; y; \3 g $ z, `; E+ t- R5 B, [
valueStr = SysAllocString((WCHAR *) L"1232"); 8 X [' t; @0 z2 Q VariantInit(&pokeVariant[0]); 7 Q7 H) B/ `( G; y p6 X! P6 [2 `
pokeVariant[0].vt = VT_BSTR;! _0 |2 B( k% T/ T
pokeVariant[0].bstrVal = valueStr; 5 a# V, ]9 h# m9 E, ` - J2 A. t" O: a Z7 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 t# [: Q1 B# d2 X" a* y) J' F
VariantInit(&pokeVariant[1]); 4 N# N$ f" E2 w% [' l* c
pokeVariant[1].vt = VT_BSTR; 3 T3 S2 |+ [* v# `9 F pokeVariant[1].bstrVal = itemStr;1 y4 L+ [$ L0 W& _1 P+ v( b
" Z$ s* S3 ^6 I9 p# r
topicStr = SysAllocString((WCHAR *) L"system"); 1 q1 G& {3 `$ M, G& E. J* f# H VariantInit(&pokeVariant[2]); , |. ]' [8 U; z; K! | pokeVariant[2].vt = VT_BSTR;. Z7 o1 _. A: Z# D: [
pokeVariant[2].bstrVal = topicStr; ' {' J6 }! X& L# ]( \* h C. R; `4 X& D" D) E2 R// Set the DISPPARAMS structure that holds the variant./ ]2 }# V( k/ n( {+ F/ n' s0 \
; W& D C& W+ o5 M3 F dp.rgvarg = pokeVariant; u5 V& j* [$ x* N3 K6 _
dp.cArgs = 3;$ _- o, V9 ]4 P3 M
dp.rgdispidNamedArgs = NULL;) U' U* z! Y3 j2 k( i
dp.cNamedArgs = 0;! y2 x, P4 H+ r( t g% k
! ~2 j" B8 G' f! E: Y// Call IDispatch::Invoke()8 i2 A) ]) A3 U! q
+ s5 H0 G# V0 e# Q
hr = m_pDisp->Invoke(& r/ T$ e/ T; D' @ S% G
pokeID,5 i9 m/ }. p! Z
IID_NULL, , W% h- v8 n7 J7 M/ J LOCALE_SYSTEM_DEFAULT,* ?* n9 b. A' a ]0 v K+ G# M
DISPATCH_METHOD, # Z( Z& E { T4 b &dp,% o6 ~/ ?. I" B1 S- L
NULL, / R& i6 F5 K, G7 w &ei, 8 h+ R4 Q8 }+ S- X5 g& K( z. f8 D) h &uiErr);- {5 e. J; |$ C! p$ f
f& o7 F; T2 p; z; l/ a2 k SysFreeString(topicStr); R) M5 F* Y2 J/ B6 p) j
SysFreeString(itemStr);/ L q* J+ V- W" L; V
SysFreeString(valueStr);8 u. g0 {1 D: s2 c! Y4 x4 D
6 g. l' ]5 ~1 A6 J! e1 v& Q6 u) F
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??? & M$ z. M4 Y- \/ w& O7 } c( R- t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???? # c0 j8 \: x" w; P. B) ?2 @5 } , p5 D9 t B9 e7 s" v0 O$ d0 b1 }! u1 g- H- P4 i& ^
2.这是request的程序- `/ c3 {: n9 b z0 \4 b1 W
// Request a value from Extend ; s! A8 L4 j( _) D) p( b0 `5 P& E//+ U* f/ H; d8 g/ ~" H" @
// Initialize the variant that will hold the BSTR. Set the variant's8 G! m: R/ b3 J X: |
// type flag to indicate the fact that this variant holds a BSTR. Place the' N; I$ Z; b1 g
// BSTR into the variant structure.5 t$ ]! T3 y$ [9 u ~; p& W
) r$ k: q& v# `' G$ V9 c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 P- l/ k# c/ d : s: d `; H1 s' }! m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; F- @( |! W& r' {5 J! U
VariantInit(&requestVariant[0]); 3 a; t+ o* o% t requestVariant[0].vt = VT_BSTR;$ X4 o+ H: O2 j! ~
requestVariant[0].bstrVal = itemStr;: a& V e' ]/ S4 }# P
) s' k1 M3 O4 s. f4 g6 M- i topicStr = SysAllocString((WCHAR *) L"system"); 3 i T( A6 v/ Q4 Z: Y( `& p( a! Q VariantInit(&requestVariant[1]); ! X( U& X! _2 {2 _, F requestVariant[1].vt = VT_BSTR;1 E3 P o# H& D$ N
requestVariant[1].bstrVal = topicStr; 9 D& a9 b. E& S5 {# d% F- G % ~& j5 K9 J% ]- |& ?' l. [// Set the DISPPARAMS structure that holds the variant. 5 A5 F7 C, @% r) z3 @ 6 z5 E9 Y0 Z! j3 d- {* _ dp2.rgvarg = requestVariant; ( W0 T7 t) \: ^. c8 v8 Q. K dp2.cArgs = 2;! p! z2 I4 ]& b% R- L8 F
dp2.rgdispidNamedArgs = NULL; / p7 D' K% l7 K4 |7 ?3 w) }" q# G dp2.cNamedArgs = 0;) K2 J# Y4 V& S
" H/ D% s$ l" m: D
var.vt = VT_EMPTY; ! N, ` I: ? @( c2 r! m: q6 [ 2 I! z5 R2 ^" l# c8 e// Call IDispatch::Invoke() p4 L4 a" {& _* l P8 d& F
+ {% t' p" T* k3 r3 j hr = m_pDisp->Invoke( $ B$ y$ I% c7 a* [' n requestID,: B+ s$ O0 ]! V+ [0 e
IID_NULL,' R5 Y* d5 c. i0 N
LOCALE_SYSTEM_DEFAULT,9 n' \% o& X0 N9 N2 a+ Z
DISPATCH_METHOD,/ X+ _0 W/ \. O: C5 n2 t
&dp2, / L9 C4 x% T& @( v( k &var,3 A- ~( |+ i+ u/ v. @- e7 V5 T
&ei,+ I- W c# z% ~ M: R
&uiErr);$ g6 ]! w& Z" R$ L* Q2 M2 s/ P# b0 `
, _! Q# Z; G( j8 e SysFreeString(topicStr); ; S, o& K' k+ Y2 @, C SysFreeString(itemStr);' I! l& H0 \- A* w$ s1 K( L6 r1 Z9 I0 q
请问该程序是获得extend里面的哪个值? 4 }) R9 C l- |8 c. \/ s4 D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????