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： # x% |, L3 k' y9 `. A; FName = (WCHAR *) L"Poke";1 I; I$ t0 m; e6 r
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hr = m_pDisp->GetIDsOfNames () r* N$ q, j6 [2 Y8 F) u
IID_NULL, // reserved- K* Q8 M8 I, m2 j: K* U3 j: U
&Name, // Array of names to get IDs for, L( ?/ h9 I& @0 P
1, // # of names in the array ' F7 W( Q. v" K+ { LOCALE_SYSTEM_DEFAULT, // System locale 8 _+ V1 q" @) g1 J. T &pokeID); // Array of IDs to fill on output0 \4 _ r7 j: R: s% O$ y
/ [% w5 R% O% ^6 z% H if (hr)' J0 k1 P" O$ l# h) I) ?
{ & `$ M3 \( _' }1 ^3 {4 h MessageBox ("Get Poke Unsuccessful");: y3 B$ X$ d) |0 P3 J- T, g
return; N0 r2 m" s2 [* N4 _
} ( Y0 Z* f' p3 w1 M+ |' E- ]$ W/ E+ d. O! y
/**************************传递数据给extend**************************************/* y# X4 W8 ^- z+ x& p. j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . m: K" k' P6 s9 M, M ) B' \/ u2 f2 P/ X( b
valueStr = SysAllocString((WCHAR *) L"1232"); 6 |6 L; c: h$ _' u R- [ VariantInit(&pokeVariant[0]); + X! B! v% D8 H9 s# h* K
pokeVariant[0].vt = VT_BSTR; 6 W2 M9 r. K- }6 W pokeVariant[0].bstrVal = valueStr; ' q5 N3 @1 O" Y: E7 s 5 E* m$ E; t2 g% t& y2 x) J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # P" D8 O0 t0 \ | VariantInit(&pokeVariant[1]); " w! ~1 w6 y4 \; |9 g% `
pokeVariant[1].vt = VT_BSTR;2 j- {* J/ ?) U7 y
pokeVariant[1].bstrVal = itemStr; # P# [ [7 z/ r. x4 D+ K9 i+ c& @& n0 s ]) s( Y0 W$ l, T# G topicStr = SysAllocString((WCHAR *) L"system");2 @% o2 o# o7 C- H2 A
VariantInit(&pokeVariant[2]); 9 W4 x( `/ W2 D! G, { pokeVariant[2].vt = VT_BSTR;1 V. p! v! o: }; D3 A
pokeVariant[2].bstrVal = topicStr; 2 M- t+ ] _( I4 q3 |4 B6 E7 b4 u 5 L) P& @0 x8 J+ W3 b! A// Set the DISPPARAMS structure that holds the variant. ! L5 I" r. C% b, t: |7 S: e$ L+ _3 V ~; p, S
dp.rgvarg = pokeVariant; " b6 _# J7 b8 q8 [% @- g dp.cArgs = 3;- v# m/ K+ N4 _% A. Z- O1 t- C% u
dp.rgdispidNamedArgs = NULL;" }* w. g0 a# F$ Q- q6 g' z
dp.cNamedArgs = 0;* b; }* a1 T, w2 u
' D8 W- a: C$ ~// Call IDispatch::Invoke() 3 S6 O v2 a7 v# \6 Z& `2 v- O . ]0 o2 r! q/ [0 q+ m& G( f$ x! x hr = m_pDisp->Invoke(1 W* V$ l( e, l, d4 F
pokeID,2 G) a# [# C! i8 b) u* S, {
IID_NULL,' N) R+ w; O: D" \9 c% y! }* ]
LOCALE_SYSTEM_DEFAULT, 7 F$ o6 Q- a( {7 F: i DISPATCH_METHOD,2 J" x9 u1 s- e$ v$ v4 Y1 r
&dp," Q. C; E5 u' Q9 k8 Q' c9 ?
NULL, / R2 h# h% f' q7 ] &ei, # V4 T5 x1 i/ B- I1 e &uiErr);9 F' x4 d/ h6 c! b7 Z
' F! Z9 v6 c9 H2 Y SysFreeString(topicStr); {1 {- u! }8 y7 G' I
SysFreeString(itemStr); 4 K# _/ }0 h- X SysFreeString(valueStr);- e' X5 q B/ y& r" p7 D) @$ j
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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？？？1 a/ U3 x& `5 I/ T" 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？？？？ ' }% z% d; X G( x/ m: k% ]) V/ `+ b
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2.这是request的程序7 v2 G5 @! a! V% C4 \- X) Q9 s
// Request a value from Extend ; g# W* k/ b+ U0 m: E! \1 `// 5 g+ Z- x' ~! K* [& q- G// Initialize the variant that will hold the BSTR. Set the variant's; O0 E- L6 _+ d7 n
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 h" d1 H' h* \ ^# O& u% c8 ]+ j, P// BSTR into the variant structure. & [ o8 A! E. K6 t4 N/ I7 G) t- P 7 L1 b0 c. d$ L5 @ o requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 L* c2 h- G T
3 d. d2 i% [; n" w! A9 v) |2 [1 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; ^% n/ o7 z m" D. Z
VariantInit(&requestVariant[0]); : v& t+ N3 s! b* P1 H/ Z8 ^# w1 r
requestVariant[0].vt = VT_BSTR; ( ]% L- O/ C8 Q/ ~% @ requestVariant[0].bstrVal = itemStr; - c7 ^& e; A& @; J; {# r" Z, C2 h& F, _; E5 u3 Q" I! [
topicStr = SysAllocString((WCHAR *) L"system");4 \3 ]6 H B/ V8 w
VariantInit(&requestVariant[1]); 9 R2 [. t* C% \/ R2 t M requestVariant[1].vt = VT_BSTR;" f& i4 e7 [0 T1 Z7 b
requestVariant[1].bstrVal = topicStr; 3 t R1 x5 N) b1 }! _. V. I6 Z; c A+ T9 N: M- l5 T
// Set the DISPPARAMS structure that holds the variant. , Z6 L4 u0 L5 i: H) [ & d# w4 h" T G% _ dp2.rgvarg = requestVariant;3 Y8 e$ m, B& B+ d
dp2.cArgs = 2;! p0 V2 C6 x5 O; O; y& o# i! R U
dp2.rgdispidNamedArgs = NULL; 8 u; C/ T4 i9 b' A5 q dp2.cNamedArgs = 0; 2 u9 c. Z3 t# ~/ H& F% v0 _4 S! @ I+ J4 v7 ~
var.vt = VT_EMPTY; $ w; ]5 R* E3 g0 U/ M, ]8 |1 @, N4 {5 Q4 G6 [5 m
// Call IDispatch::Invoke()& J, C6 O1 b! x
6 ]4 l9 S- B8 ~0 S; M4 @* @& p; h hr = m_pDisp->Invoke( 5 D3 b1 C, v* I$ _, r requestID, * `' W* W: P/ U" G0 ^7 u1 V IID_NULL,+ e D/ B, [, a
LOCALE_SYSTEM_DEFAULT, ; X3 [8 ]4 b G DISPATCH_METHOD,* y _# T& M: ^9 Z" Z
&dp2,7 _" v0 M5 q' X5 X- x' E6 c* E
&var, & W" I2 |+ {+ K) [: l7 G# k7 m! K &ei,7 X, n8 k8 \* C
&uiErr);# ?( ^) F; ~- y. s; B3 B0 Z' n
/ f. z- p; _- G1 ]& X( E5 L* v* {" _2 t SysFreeString(topicStr); / _4 r4 H U+ x SysFreeString(itemStr);9 j7 h d) Q- n; Y5 f% D: o
请问该程序是获得extend里面的哪个值？ 7 J9 B5 e, p2 l p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？？？？
发表于 2008-11-25 19:37:03
