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:- h8 L5 J% b0 ?
Name = (WCHAR *) L"Poke";
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4 J" m6 f! j8 G( b; L5 X hr = m_pDisp->GetIDsOfNames (( }1 Z$ y; l3 X6 L9 b C
IID_NULL, // reserved
8 R5 i, [8 D F2 z& {; I &Name, // Array of names to get IDs for
2 h0 B' @$ ]& d6 T- k( } 1, // # of names in the array, ^$ X% v7 u- ]* O0 g
LOCALE_SYSTEM_DEFAULT, // System locale y3 ]5 b+ y0 m) b& I5 e
&pokeID); // Array of IDs to fill on output. F, j- z; r8 K7 I
U# R @, p! n7 H0 x% {
if (hr)
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MessageBox ("Get Poke Unsuccessful");
. q( }6 y) v/ l$ H# \& [5 u* S# H return;
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/**************************传递数据给extend**************************************/. g' ~$ p* c4 a7 }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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& ~6 P( Y5 |5 x valueStr = SysAllocString((WCHAR *) L"1232");
; d; \7 S3 \) [& Y VariantInit(&pokeVariant[0]); 3 k& ~7 i+ q; _, \
pokeVariant[0].vt = VT_BSTR;4 W9 q4 I/ l* ?7 L2 Q# n# E
pokeVariant[0].bstrVal = valueStr;+ @) [3 p/ C _7 T; U$ L
* X- y+ n" \4 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
5 r v& u2 S8 G VariantInit(&pokeVariant[1]);
1 u: R% r5 _7 Z; i pokeVariant[1].vt = VT_BSTR;; P! w8 M& T* j. M
pokeVariant[1].bstrVal = itemStr;
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% q8 x$ z C+ M F6 P3 s topicStr = SysAllocString((WCHAR *) L"system");1 T0 C9 d5 M' F5 P( y8 W- q
VariantInit(&pokeVariant[2]);
* p. r# Q1 r+ }1 U$ { pokeVariant[2].vt = VT_BSTR;
i1 C" b/ h: [! z, |( T, @ pokeVariant[2].bstrVal = topicStr;
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8 z0 p, C) ^3 c; w! g# ]* i0 J // Set the DISPPARAMS structure that holds the variant.5 I; ]3 ~7 A( G) x* Z3 y1 |
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dp.rgvarg = pokeVariant;
+ w h( K3 X! q; a dp.cArgs = 3;
% F# F' c% p: D; z! n3 B, s dp.rgdispidNamedArgs = NULL;4 ^& @& c( n: y6 f- |& X1 \
dp.cNamedArgs = 0;
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) n8 i% \. X |5 A4 v // Call IDispatch::Invoke()
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: K9 e5 t# ?: L1 V; O7 r hr = m_pDisp->Invoke(, x! V8 A+ V% _- W" t; j: A
pokeID,
" m, Q/ ]- k; k* M& t IID_NULL,
% f, g v* h( j' A, S LOCALE_SYSTEM_DEFAULT,
t: w; x0 F4 r3 q/ } DISPATCH_METHOD,
1 [& v7 Y. \. M1 r4 k &dp,1 V, J9 t! l" j+ l6 |" ]# m) V1 u
NULL,
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&uiErr);
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SysFreeString(topicStr);
/ o7 n' ^) l) ?' S, [. p2 d. C4 f SysFreeString(itemStr);
: q1 O, x# R& X' `% T SysFreeString(valueStr);" B& }% X, }" v4 b! h
1 }) q3 d: t& e, _+ C* U/ S 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???4 m' S2 ]1 j1 Z4 `
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????
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" j& l: a% V% t) U+ V& u# |8 G7 ] 2.这是request的程序
- u+ L5 c5 z% c, I; K. j // Request a value from Extend. n0 O# u; t& k/ A* |8 o9 g
//
( t: Z, E: l5 ]% E) Y // Initialize the variant that will hold the BSTR. Set the variant's
1 J7 d3 t* J9 [2 Y5 w5 V // type flag to indicate the fact that this variant holds a BSTR. Place the; |) F! X, L* a4 m$ W' y5 c" _
// BSTR into the variant structure./ ` q" X! O$ v6 D" E- E. M
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- A+ P+ R! y" a8 V/ w& U3 H
w% H/ ?( P. ~4 L" q$ o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! B6 E) ]" m: I5 }2 e2 d
VariantInit(&requestVariant[0]); 9 L* K5 C4 U( ]* C/ F- t" m
requestVariant[0].vt = VT_BSTR;4 y1 U+ P6 [4 H% Z' \4 T% A
requestVariant[0].bstrVal = itemStr;- [6 _) X, m3 i2 m- o
4 }- ?. k3 }; m0 E& X- T! M topicStr = SysAllocString((WCHAR *) L"system");- _+ v; t, V3 }/ j9 J& }3 y& F8 @
VariantInit(&requestVariant[1]); ' J' ^ b- z- B& k9 _: w
requestVariant[1].vt = VT_BSTR;5 e9 w0 W7 L @0 r6 U: D
requestVariant[1].bstrVal = topicStr;4 _& P" r8 |5 e4 T7 g4 `
, M3 e2 P* H5 `* m2 t' J // Set the DISPPARAMS structure that holds the variant.
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6 C1 o9 d6 V" g* v# I% F4 R5 b dp2.rgvarg = requestVariant;
1 o9 ]+ s5 W% P) X$ R6 E3 g5 |: q dp2.cArgs = 2;
7 @# }0 N& c, W) y dp2.rgdispidNamedArgs = NULL;( f2 o8 @7 u6 O' K' Y
dp2.cNamedArgs = 0;" g' [# W5 c: L1 o5 C% ~' x
0 b$ v4 L! Z) e var.vt = VT_EMPTY;$ J2 g; H/ Q4 K
/ F+ ~. x2 }5 O. Q* f1 k% N0 s // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke() z7 P9 _: `; z% R9 W
requestID,0 e% ?5 X/ a( |" a. |( x7 ~
IID_NULL,
1 c& v; l- p6 o/ a- F$ J- S LOCALE_SYSTEM_DEFAULT,/ ~+ m5 b5 e) m& X
DISPATCH_METHOD,# G- i& H8 j* G1 y/ H
&dp2,
/ k3 w8 |$ n1 n &var,7 `; @9 C$ L8 v6 ~
&ei,0 ]" i* f/ }' G: `4 u9 q
&uiErr);2 K* f# f! D3 h# t* e4 U+ K- d
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SysFreeString(topicStr);* j# Y& O7 g1 x# X
SysFreeString(itemStr);
/ w6 z! }( M! f1 V) u 请问该程序是获得extend里面的哪个值?
+ E( ^0 t7 u$ Y' L$ {5 t7 \ 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????
我来回答