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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:# G7 K5 z9 x3 t+ _( l4 }! K
Name = (WCHAR *) L"Poke";
+ t- k- m) w, X) | o& ? , w% f5 i1 H+ [1 n {( {
hr = m_pDisp->GetIDsOfNames (
9 w. p+ P% L3 }; I4 x- @ IID_NULL, // reserved
@& z# z: @5 j g" Z! w# M &Name, // Array of names to get IDs for
0 M# T) c$ Z* ~; F d 1, // # of names in the array F/ O( V7 e8 e% d- p' t
LOCALE_SYSTEM_DEFAULT, // System locale
% R# T4 m* g3 c2 q &pokeID); // Array of IDs to fill on output a; [4 X0 W& B8 A, T& Q0 C# L
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if (hr)2 {! U1 l' I* q
{
4 F+ V1 n, U' t! k- `% u MessageBox ("Get Poke Unsuccessful");
5 K! w* Y, d3 F# U, P return;
! M0 @: m+ ?& O( K* O }
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/**************************传递数据给extend**************************************/
& G% s2 [% c9 M: A3 e9 x+ f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
( c6 l* h) N5 o+ r. e7 p # Y5 f* P0 }8 i" b: y% i
valueStr = SysAllocString((WCHAR *) L"1232");. p H D s: J" s6 X& z' N
VariantInit(&pokeVariant[0]);
* [$ ~; G' Z3 c- | pokeVariant[0].vt = VT_BSTR;# R5 n' F: L' a' {+ s
pokeVariant[0].bstrVal = valueStr;
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. H" G# P: O* s" x8 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; K8 P" L- C3 @5 }% e" s& p4 l VariantInit(&pokeVariant[1]); N) o: B2 i; D, l+ B8 p5 F
pokeVariant[1].vt = VT_BSTR;
$ c. ]1 P: k, [4 ^) b pokeVariant[1].bstrVal = itemStr;
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9 ^- N* g w/ N% s6 {4 E( P topicStr = SysAllocString((WCHAR *) L"system");/ {! ~* w# r. _+ V1 X) x
VariantInit(&pokeVariant[2]); / S [& h6 s/ y% ^( `* p
pokeVariant[2].vt = VT_BSTR;. U, p0 O" A7 k9 Z' ^5 X+ x" p
pokeVariant[2].bstrVal = topicStr;# D1 D( j: e7 ^! B" X. B
1 Y$ K1 f2 K# C// Set the DISPPARAMS structure that holds the variant.
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: \9 q; k2 [% w k2 W dp.rgvarg = pokeVariant;% V0 r, b: ?4 M1 {% U2 I
dp.cArgs = 3;
- F- _: |( K5 @ dp.rgdispidNamedArgs = NULL;
4 f6 E3 X0 G/ u dp.cNamedArgs = 0;0 W K! I3 m3 k' r5 `
$ a1 ~/ B$ c5 v1 Y7 X// Call IDispatch::Invoke()3 g, N9 |# i, R
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hr = m_pDisp->Invoke(1 m- P# C* x* U5 l ?
pokeID,2 G. V, {6 l# H6 M
IID_NULL,
5 v% A' ?" H: @7 m8 R3 Z LOCALE_SYSTEM_DEFAULT,+ s) }% x9 |- u/ L; ~3 r
DISPATCH_METHOD," V5 B- T: q2 G; C& E, K! f) p i
&dp,
5 z$ s- T Z( s: Y- @- { NULL,; u9 S) B) l: q& h
&ei,
. D2 v: w2 l- ^9 n &uiErr);
, V) m$ D5 N( a1 @4 S8 e. L. \; ^& p( t
SysFreeString(topicStr);
8 X9 g& w3 m% W9 s' W: a SysFreeString(itemStr);
7 W* I5 y0 ^$ X2 W7 c2 f SysFreeString(valueStr);
, W0 _; q: L$ d1 _* W ~7 |, s3 f) x
+ j' v8 l' N$ J" k* N, r/ x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???$ k& e! C% z6 w7 u2 A1 Y
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????* ]3 |7 T$ {' P" r/ I
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2.这是request的程序
5 m$ s3 d7 p& S7 K+ P' N" `* V: F// Request a value from Extend" d5 P% _3 P+ w, E
//% {( Z/ d) I' {1 s
// Initialize the variant that will hold the BSTR. Set the variant's
; a4 g- l$ ?1 w* n0 n" |4 [ W3 M// type flag to indicate the fact that this variant holds a BSTR. Place the! ]" b5 \) _# c1 O) {$ u
// BSTR into the variant structure.* [. m' c7 [6 S& M; \7 l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# Z( g" M( L& K9 ~& q
; g0 P/ [; L6 m& P6 p5 a% l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
2 y- F6 l# ^; A& M VariantInit(&requestVariant[0]); 9 Z: T4 F1 G$ A6 d
requestVariant[0].vt = VT_BSTR;7 p- ?4 j/ ^- W1 M* d9 Q5 ^( _
requestVariant[0].bstrVal = itemStr;- p* F5 ]! R0 o) c; f
: k% j) O9 u7 y9 H- ^; Z1 e! E# I2 b topicStr = SysAllocString((WCHAR *) L"system");5 x. W1 `5 k& }/ ^
VariantInit(&requestVariant[1]);
/ C/ }, M, F+ M- o4 b requestVariant[1].vt = VT_BSTR;
! C$ A$ U' ^# V8 m7 `2 R, D: g requestVariant[1].bstrVal = topicStr;+ e: y) L, y! N7 \3 ?/ J* n5 U- Y
1 G! S; w) U5 Z// Set the DISPPARAMS structure that holds the variant.0 f }% A9 k3 i! X1 s F
2 Y) S" v0 S# v# O
dp2.rgvarg = requestVariant;
5 ^2 l. n9 A. v2 g dp2.cArgs = 2;
5 z" b% h n, m5 I! } dp2.rgdispidNamedArgs = NULL;" e& v/ N8 Y) H5 R) }+ Z- t
dp2.cNamedArgs = 0;! }: c9 l/ w5 h( @; X
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()$ p- I) {, h9 P: M* C, s
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hr = m_pDisp->Invoke(
4 S( L9 r: G- ^6 j' l9 f0 B requestID,
% t- X5 a6 q* i IID_NULL,
D, X8 J# s0 u! g LOCALE_SYSTEM_DEFAULT,
" r) U7 N/ B& F* H% R/ b DISPATCH_METHOD,
- ~! @3 ? l+ J$ }$ `2 x" t; Q &dp2,3 m% A- I: A3 x0 C8 o
&var," B7 }9 j Y/ x9 a# ?! W
&ei,
: ?& `4 ~6 h9 h' i0 [# @; L3 L &uiErr);
( K* B) a- ?! L# B2 l5 I: P
# R+ P: T* U! ?; q) W8 B! O/ ^ SysFreeString(topicStr);3 k* d- E) V! U) N$ N
SysFreeString(itemStr);. c$ f# ~- t$ o' T* M
请问该程序是获得extend里面的哪个值?
( V. U9 Q$ z5 B7 ^2 t2 ~2 \& g: W! ^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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