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:0 H: Z$ n0 O7 r4 B0 t; }% s
Name = (WCHAR *) L"Poke";8 C4 c( p& ~, s' n! f( r( Z
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hr = m_pDisp->GetIDsOfNames ( 4 C. p: b& Z1 }6 o. { IID_NULL, // reserved . {9 I) u3 _% w. y &Name, // Array of names to get IDs for: Z' D! j6 o0 `- \ v1 `
1, // # of names in the array 8 E6 B4 b& J4 a0 {9 |5 d: w2 A LOCALE_SYSTEM_DEFAULT, // System locale 6 O& J9 {# L3 }6 j. s &pokeID); // Array of IDs to fill on output 3 v+ s* U2 q& m9 g Z- R 5 }2 Y$ L* t* Z" J; V5 z if (hr) " v9 W) L, \( V8 a i; h5 v {3 k0 p( ^0 x3 g, I/ C$ @
MessageBox ("Get Poke Unsuccessful"); 6 u& P) h/ _' T1 [ return; M6 \2 F e0 M# J- F } 8 H" f& ^2 r c" h" y' V) k! K5 k2 A7 |+ l% E
/**************************传递数据给extend**************************************/ : D! s0 R7 G7 [4 C. R/ t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: B% G( I$ i7 R
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valueStr = SysAllocString((WCHAR *) L"1232");+ M" c" }0 C9 y: K5 N8 l2 A$ _
VariantInit(&pokeVariant[0]); ) c9 r: S; ~6 X) r
pokeVariant[0].vt = VT_BSTR; 0 n* ^+ _- c2 y7 K0 P) e! b8 o pokeVariant[0].bstrVal = valueStr;; O$ a" s6 V( L6 I3 z
8 I6 b% l+ W% M" o: ]+ N$ { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / N8 b; H& Z7 p VariantInit(&pokeVariant[1]); & E: F' n0 M9 A pokeVariant[1].vt = VT_BSTR; H- P) p. S. J5 n5 h pokeVariant[1].bstrVal = itemStr; 0 h: n; @4 P8 C" d: z2 T/ A' h7 |3 Q& v1 g* U' T2 u7 r8 |; }! o
topicStr = SysAllocString((WCHAR *) L"system");* s, l; K( Z" }* A2 `, q: D
VariantInit(&pokeVariant[2]); 3 |9 P, n" E5 m- b" U& z pokeVariant[2].vt = VT_BSTR;- b- S4 K. M! o ?
pokeVariant[2].bstrVal = topicStr; 2 ?$ u8 Q% P. f0 M% e' w, k( ~- @+ A0 c
// Set the DISPPARAMS structure that holds the variant. R) P' k2 y3 f" x) \7 O( V6 |- f+ w* S6 A( a
dp.rgvarg = pokeVariant; ; K" m8 a$ N$ P1 }/ X8 F dp.cArgs = 3; . ?: W0 R# ?: i dp.rgdispidNamedArgs = NULL; 7 s z; S4 C/ v$ g6 P: g5 A9 y dp.cNamedArgs = 0;: v8 B: k1 R2 t7 j4 Y! ^# L
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// Call IDispatch::Invoke() # w# }+ j1 H9 R7 G! B9 ~ m% X 0 r. Q. g) {' [# R+ c( ^ hr = m_pDisp->Invoke(# D, l9 X! Z- |9 f- O
pokeID,# x b Q& `6 d1 p# X( {( t @' L
IID_NULL,* J- f8 o' U3 P. q$ A
LOCALE_SYSTEM_DEFAULT,& ?: v, [0 n1 P6 `2 c( c
DISPATCH_METHOD, A4 x4 L5 D% e; s y &dp,, p( k2 R! Q4 X8 G: y6 @
NULL, ) J3 x$ _) {, h: b2 C &ei,% N3 J1 e7 f0 ?. ~
&uiErr);6 X7 V9 r, A6 P1 p" o
# V$ o% y, f0 q* h) z SysFreeString(topicStr); 6 `3 T2 `1 U; i. O: S SysFreeString(itemStr);' Z2 Y. y( D: ^5 r: a) Y, C" ~$ I
SysFreeString(valueStr);' }$ w. ]1 ?' f4 L. [
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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??? }* r4 o4 q+ m v- M/ @7 ^' J1 j
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????. D2 i/ M% b/ C& g7 z
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2.这是request的程序 . g1 s) X `0 C) l// Request a value from Extend $ t+ Q" C( C& p// `6 p4 B) R$ U4 Z) E* t
// Initialize the variant that will hold the BSTR. Set the variant's * d6 ^6 _4 |2 J" b9 z$ t// type flag to indicate the fact that this variant holds a BSTR. Place the " ]; ?( a4 }* k// BSTR into the variant structure. - F- q' M u3 F/ b+ q9 [! U% w. e / _9 l& I1 V7 w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! S) p' C& g- |2 A( S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); `: n2 @8 N' s- N# ~4 U" s
VariantInit(&requestVariant[0]); & y# I; c1 W" E$ X) A
requestVariant[0].vt = VT_BSTR;" B1 t% a2 l/ q( r7 v9 X# P
requestVariant[0].bstrVal = itemStr;5 k! s6 S& u8 T4 a
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topicStr = SysAllocString((WCHAR *) L"system"); . Y$ n. `: r# y! s8 m4 J$ G VariantInit(&requestVariant[1]); ( \4 ^( o1 ?; a- V1 Y3 U0 x requestVariant[1].vt = VT_BSTR;- I. f" d r% C. U
requestVariant[1].bstrVal = topicStr; " u3 p9 u. j6 e5 _' {% u/ ^" B4 `6 n1 n
// Set the DISPPARAMS structure that holds the variant.8 `& `% v9 h( Z
+ F+ F4 d0 R$ I dp2.rgvarg = requestVariant; v! }; b( I9 {& Y2 m
dp2.cArgs = 2; ( G- c: ~9 z6 U4 c dp2.rgdispidNamedArgs = NULL;1 ^3 d$ c$ `& b% a# B& e
dp2.cNamedArgs = 0; ) b. {- A6 Z7 i! q1 A0 J3 N# h& K1 N" ] w3 w
var.vt = VT_EMPTY;$ _8 {( J" C$ N' J- D$ B: P& T
; i/ h5 f0 h3 K) Z" u( ?/ K// Call IDispatch::Invoke() " q" n% g$ b0 a" y [9 w- t3 w4 h5 H! V, a9 I* }9 g/ {7 B0 \
hr = m_pDisp->Invoke( x" M1 g5 m! J6 _6 h3 ~% T4 E
requestID,6 ~& K* T J$ I5 v
IID_NULL,# B* H8 _5 f2 W9 ]8 \9 p8 h6 b5 {
LOCALE_SYSTEM_DEFAULT,3 h) e' l3 J! Y% k- I% D1 y
DISPATCH_METHOD,4 C3 u( S4 y1 U8 \) Y S
&dp2, ; n4 j; F. u3 a &var, , r2 [& D- B, K: L( J &ei, 8 Z9 }/ `% n O1 E' M &uiErr); ' S. T; o& ~+ N, t' g* Y8 z o" R3 h6 U( S& Y3 }6 y
SysFreeString(topicStr);' C8 s+ H$ s8 b4 A
SysFreeString(itemStr);$ M4 x( j. z5 F! ~
请问该程序是获得extend里面的哪个值? - ^3 T8 f% b0 a. I" t, C" q% k: ^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????