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5仿真币
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：
' U) U6 C" N [5 k+ H L' EName = (WCHAR *) L"Poke";
! [9 n# H* @6 r0 O5 \
% Z) s2 \; F/ B hr = m_pDisp->GetIDsOfNames (
! ]+ l; ]8 b* m6 H5 Q- n- K IID_NULL, // reserved
) v6 g8 [0 |1 {1 n &Name, // Array of names to get IDs for) r* s1 A9 Q @) ^3 A
1, // # of names in the array
S' o- W( @4 @( b2 x LOCALE_SYSTEM_DEFAULT, // System locale4 W9 u" X5 i+ Z. y, x& E: x
&pokeID); // Array of IDs to fill on output
: C, f2 q6 x; X S: }8 k
* \* J T' y, b) L0 g& w4 [ if (hr) F8 [! l+ E* P0 m% l! M
{1 W; u0 [ G! `3 v
MessageBox ("Get Poke Unsuccessful");/ H, {" j: I$ m- q8 K) y
return;
; n, }2 x* X2 d7 z d9 J3 O }
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/**************************传递数据给extend**************************************/# P) P8 W" \- u8 |0 ?8 k8 ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 q$ ?* i9 `: U2 e* K. d3 J5 K5 [
" I ]: V1 D" e! o valueStr = SysAllocString((WCHAR *) L"1232");
3 j$ Z6 c, L7 M VariantInit(&pokeVariant[0]); - x4 ?* r1 {0 H. o/ |6 Q8 \
pokeVariant[0].vt = VT_BSTR;$ o+ l- O2 Y, A, p2 @
pokeVariant[0].bstrVal = valueStr;. b- w( Y( l1 j6 a3 Z ~
* e/ g& X4 y0 b6 F% h2 g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 L! `& ^8 l. M: ?5 y! u" h: p2 G
VariantInit(&pokeVariant[1]);
' h2 d' o% J5 f3 X" T/ N7 ~7 f7 Z pokeVariant[1].vt = VT_BSTR;8 f3 X, Z& _, F; _- ~* @
pokeVariant[1].bstrVal = itemStr;9 Z) X3 B" _8 j2 D7 I
; O3 z3 J% H4 L9 z9 I6 \
topicStr = SysAllocString((WCHAR *) L"system");
+ y9 d( f! M! h! v* h VariantInit(&pokeVariant[2]); $ g# L: p5 D. }
pokeVariant[2].vt = VT_BSTR;
E, I8 H# ~8 L0 O* G pokeVariant[2].bstrVal = topicStr;
3 [( J$ z0 y* i; I. ^8 K) R: g0 L6 l) \2 d2 |2 \% E
// Set the DISPPARAMS structure that holds the variant.
( a0 h0 n. \3 s1 ^3 o" z- u
1 J6 `: v! G8 K2 c+ { dp.rgvarg = pokeVariant;4 ^7 f! ~/ f. E6 y8 P
dp.cArgs = 3;8 |' }2 g' e. }( |& l
dp.rgdispidNamedArgs = NULL;6 ^4 @* }4 O1 H* L- N
dp.cNamedArgs = 0;
3 D" i. W( x Q6 q3 [
0 v9 s: |1 I3 q" y( H ~1 r// Call IDispatch::Invoke()1 ~% V0 l u- r5 z& d
8 O- \. R& D+ O2 N$ X hr = m_pDisp->Invoke(
/ w) e; g5 ?- ~5 \) f2 C5 P3 C" q7 i pokeID,2 p7 t% D* J2 x& M! Q9 C
IID_NULL,
& h5 Q; L) P2 S6 v3 C- Y LOCALE_SYSTEM_DEFAULT,# N! D/ R" | ~3 S. k
DISPATCH_METHOD,5 A" G7 V! S5 h6 C0 r
&dp,
& J" h' r) j% c4 x0 h NULL,8 G! x8 x' I6 Y8 J/ X
&ei, k6 o6 c# X9 } |+ [
&uiErr);
1 V! K7 l8 {0 h% S% K. P
# K# V# M" P: g! c' `9 N+ C SysFreeString(topicStr);
- i: I0 n+ P/ O SysFreeString(itemStr);; F- B) \4 `+ X, W
SysFreeString(valueStr);: d, r1 T0 t% x: U5 y9 r
% p/ l; k! ^9 ]2 p/ w* d# }" X$ J
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？？？
/ {) J3 W3 w7 i/ g6 G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？？？？, f0 O( T& w' b* L0 \
" c; F! Z+ p2 |* r: h+ }# Z6 E
3 M& D$ J7 ^: I% y2.这是request的程序+ g) k, b! Y* ~, V/ I3 n
// Request a value from Extend7 W1 @- R1 B& `. V
//
5 ~6 V& z3 v$ I3 \9 q// Initialize the variant that will hold the BSTR. Set the variant's
# g2 q9 {& I" @// type flag to indicate the fact that this variant holds a BSTR. Place the
8 k. H6 |2 C) F) E5 }& g) R) \// BSTR into the variant structure.
7 D+ V/ x- X/ X$ \; ]
- P- m( O' r- w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. l6 _# V6 X3 j" A3 H, e
1 C4 m8 J- c( E4 F: r
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 h1 q4 T+ X# {0 b i
VariantInit(&requestVariant[0]);
$ ]3 o- T5 }0 v requestVariant[0].vt = VT_BSTR;& a( {2 O. E: @, T/ M" Q \1 V
requestVariant[0].bstrVal = itemStr;; l- d) d# E D% j3 a& G
& T$ z4 F% j( ~2 M8 g
topicStr = SysAllocString((WCHAR *) L"system");: T' t2 y0 G+ L4 l' S Y# K
VariantInit(&requestVariant[1]); " \5 W. t% [. r; h
requestVariant[1].vt = VT_BSTR;
! O' K- N2 [& h# X requestVariant[1].bstrVal = topicStr;
6 V$ C) J" P2 _1 f9 Z7 z3 H2 X0 V D3 N6 @. X9 H6 n1 A
// Set the DISPPARAMS structure that holds the variant.
- A- Z5 G) z9 @" M5 m; `' V$ G% J' A" ]) W _# j% F" d
dp2.rgvarg = requestVariant;
" l. i k% o, Z7 X( I0 q% C dp2.cArgs = 2;
# @7 a: o* X7 c" h7 S dp2.rgdispidNamedArgs = NULL;1 K/ C$ c* W4 ~ n
dp2.cNamedArgs = 0;
# a! g- d. l' z& n5 M% f' \+ _' |3 C5 ~' Y/ ]; H
var.vt = VT_EMPTY;. _$ P; h% O# Z. q! m) ]
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// Call IDispatch::Invoke()) S0 P H! @" [( M% b
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hr = m_pDisp->Invoke(! p0 P9 {$ R% D' g1 n" q, X9 k
requestID,
% t2 ~! n! y% N/ @& a, R# x t IID_NULL,
, y! G' c. R4 E7 a! x& w: `2 }7 z LOCALE_SYSTEM_DEFAULT,( M0 n7 T, _$ Z5 b
DISPATCH_METHOD,
& \' u3 z" @4 `% D" }, O &dp2,
0 w8 g! z. a+ |5 K! ~4 @( U: `9 y &var, N& ~& n p$ r
&ei,5 ~4 e/ Y& ~% g" ]2 O/ S6 x3 e
&uiErr);
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SysFreeString(topicStr);- ?6 h& d* L e z" ^) M9 V# L
SysFreeString(itemStr);
( ^( L3 o/ S' ^1 j- W( y$ f/ a请问该程序是获得extend里面的哪个值？. i+ V0 m& |6 D, d- 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？？？？ |
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发表于 2008-11-25 19:37:03
