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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：
9 u8 y1 |5 y! t# i7 R8 C3 S! i; DName = (WCHAR *) L"Poke";
" K* V" X; u/ u$ B
8 K( s" N r b5 X7 T hr = m_pDisp->GetIDsOfNames (5 r7 v" o* C- l& d
IID_NULL, // reserved, C6 X$ |' ~ _" L* X6 a
&Name, // Array of names to get IDs for
( Z5 D+ n1 ^8 P R0 a 1, // # of names in the array/ G! l% @$ h* e
LOCALE_SYSTEM_DEFAULT, // System locale
v0 }4 N' l) Y# v4 _9 u5 k &pokeID); // Array of IDs to fill on output$ `! N- r( b5 @/ e1 `# n# |: X
8 X; _; S. l0 [9 B
if (hr)
( d# m4 X# y- f. U( n: X0 w {
/ B4 [. H+ u! N6 P8 B* p$ q ~6 b MessageBox ("Get Poke Unsuccessful"); R2 M% I* q. ?2 D2 k' |
return;
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/**************************传递数据给extend**************************************/
- s, W& \' |- y; `$ d# a! k. I1 {% @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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e. t2 ]! f7 c* ^ valueStr = SysAllocString((WCHAR *) L"1232");
, w3 @: I7 G2 { VariantInit(&pokeVariant[0]); 3 T2 V$ r B* a; c6 z6 y" |
pokeVariant[0].vt = VT_BSTR;+ ^* M* @! _4 U3 c, ?$ q! ?
pokeVariant[0].bstrVal = valueStr;
: F( [# L3 F# H/ c7 c' ?
. g, h8 V+ r/ N/ h5 z/ p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% ~9 R/ ^& J% u- g& ?5 |7 C7 [
VariantInit(&pokeVariant[1]);
3 U2 H4 G1 Q+ f9 {) y; ^ pokeVariant[1].vt = VT_BSTR;
+ i' G0 X0 {1 e, e R6 ^1 y* b9 J: u pokeVariant[1].bstrVal = itemStr;
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. p6 c; n# v% `0 [1 [9 m topicStr = SysAllocString((WCHAR *) L"system");, V/ } R- a# \- h7 I
VariantInit(&pokeVariant[2]); c2 k+ I: f& c% V( c
pokeVariant[2].vt = VT_BSTR;
8 N( e' v4 Z2 C7 Y3 J1 R7 p pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;+ H3 ~) p6 v4 g" u
dp.cArgs = 3;
1 }3 A" } u& a2 {6 B% @ dp.rgdispidNamedArgs = NULL;0 G: } w) `5 y
dp.cNamedArgs = 0;- N. s9 A' m7 f; Q% |7 s
3 y8 f1 I$ n& Z0 G/ |6 N/ V// Call IDispatch::Invoke()
% M! z5 g( W8 R: J; W. f
5 N! t; V: \$ B% Z- i! b+ { hr = m_pDisp->Invoke(
# z: Z& ?; _$ p1 q% `& Q) Z3 L. s5 x pokeID,1 b# K k" t' r( E8 ~& l
IID_NULL,
1 C1 x! k8 o3 e. P: K( J4 ~3 _3 q LOCALE_SYSTEM_DEFAULT,
' V/ P J) Q; s2 i. Z! h3 D- D6 ?6 `' ^ DISPATCH_METHOD,# i6 v. }: c& K) a( ]; F5 m
&dp,& y2 ^- _2 U+ G+ S+ y2 U' Q( H
NULL,: w; l3 Y9 R S, m3 h! P
&ei,
' }& {% v2 I. A ~ &uiErr);
. H8 w/ ]. r) {, q" W1 B& f
& D& B- \1 C: [# _3 }0 m J: U' l SysFreeString(topicStr);) v- r. Q: m6 E7 t0 N) c3 g
SysFreeString(itemStr);4 O+ a+ J6 O9 S# s- } u
SysFreeString(valueStr);. T$ d7 g% d' \5 {% y" G4 x
5 Z( T, Y; V) W" Q' G( h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？？？
y; N1 O" j7 a) b' Y. X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？？？？" u v! \3 w0 P: I3 n( q9 l
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8 w+ `" o! b ~. r2.这是request的程序
; w$ M9 J- y% |/ G: U1 P: I9 Q4 ]. R// Request a value from Extend
$ q" _: A$ X: B8 F, p: a$ K//
" V: M Y: y3 U' R3 j6 k1 n// Initialize the variant that will hold the BSTR. Set the variant's
% ~! m$ C! e8 A3 r$ O// type flag to indicate the fact that this variant holds a BSTR. Place the4 X" }7 d, \* {0 I9 H; A
// BSTR into the variant structure.
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& T. D q3 X, R% B% P" J1 Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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& E# S' _9 s: u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); x3 P" P# W2 W( ?' W
VariantInit(&requestVariant[0]); 2 @' m8 r* E: N* K' N
requestVariant[0].vt = VT_BSTR;- J" Y0 F8 B0 d- ~# e
requestVariant[0].bstrVal = itemStr;
# _8 J6 N3 r9 ?! i! K- n/ W
! q* @8 B$ T6 t; e n) Q topicStr = SysAllocString((WCHAR *) L"system");
* p$ G$ {3 J4 ~/ q" U, j C" |1 `: p VariantInit(&requestVariant[1]);
- ^4 R% S" r* t/ W4 P requestVariant[1].vt = VT_BSTR;
/ g& r7 q1 I- w5 |; I) U! b- Z requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant./ w$ W, _/ X, t c2 N' t6 }
/ z$ G4 a* z+ G6 m' T( Z dp2.rgvarg = requestVariant; [# ~5 R/ a7 V$ {1 z3 ^& y7 ?: ]
dp2.cArgs = 2;# {. n) f* }% C$ C3 f& a' y
dp2.rgdispidNamedArgs = NULL;
/ _) B0 H. q6 N0 s. Z% U0 p dp2.cNamedArgs = 0;
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m0 A( H8 a% p7 f+ e var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
' j* M# x2 P) y
0 Q% M9 U2 A2 X/ ? hr = m_pDisp->Invoke(
' S6 Z" l0 j9 n3 l requestID,# {5 X1 z2 P' W+ V @! u+ Q/ X
IID_NULL,) r [& S+ p2 J
LOCALE_SYSTEM_DEFAULT,- o, ]. ?. W7 t6 U! d) f
DISPATCH_METHOD,
; N. k. a# w* _( O% Z# {. s4 s &dp2,7 N$ B a: H0 C6 j
&var,9 ^5 M' w# K/ ^; U) M; p
&ei,' i4 Z% Y5 Z' `4 E3 e
&uiErr);! g& S7 B! q. f) ]4 m, c$ j
% ^6 T3 J' s# ?3 o" q SysFreeString(topicStr);
) Z$ A/ l$ r3 e. a( q& J( [ SysFreeString(itemStr);
/ ?) N$ u" _1 v请问该程序是获得extend里面的哪个值？# y* [# r& G: N0 A- E
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
