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: - @" Z2 |( o: a: M3 ^- }* Z7 n* pName = (WCHAR *) L"Poke";" ?' Q) ~& j8 E' P
# S- t+ q- v9 M& `
hr = m_pDisp->GetIDsOfNames ( % {2 ^5 W/ Z, k. I' V IID_NULL, // reserved 6 A8 H- z* l# @" f &Name, // Array of names to get IDs for* g8 h* C: m0 S! V) K
1, // # of names in the array , o% b7 h# {% }3 j/ F" ~ LOCALE_SYSTEM_DEFAULT, // System locale , K0 n. P+ x$ j9 ?2 j &pokeID); // Array of IDs to fill on output * n: D+ F' P: a1 {( `' O7 Z1 Y % c% ?" l* {2 q
if (hr) / _. {5 H2 C. o- p' Y {$ k* v: t$ P2 X) f& i
MessageBox ("Get Poke Unsuccessful");$ q6 [2 y$ B) T' @- M& t. |
return; 4 b6 r/ s; a, }* m; h } Z5 V+ I/ R- Y, `' u7 k& C7 ]% V u
/**************************传递数据给extend**************************************/# {3 @$ I& c( K# g+ j, x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 |9 G' _7 }% \# J! f
7 c6 E5 b- f* A9 n w$ p8 [2 Z" e valueStr = SysAllocString((WCHAR *) L"1232");$ m+ W' `# c7 l# X
VariantInit(&pokeVariant[0]); , \+ ]& a" o9 }3 Y
pokeVariant[0].vt = VT_BSTR;+ L* H' T, E$ V: t% l
pokeVariant[0].bstrVal = valueStr; ' E0 n2 k5 C2 P 5 q, J$ Q% y9 T: F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - J0 C# T% C7 q' f' L1 D$ } VariantInit(&pokeVariant[1]); 4 c" X3 B0 x9 B9 \" J2 K: a2 |! Q pokeVariant[1].vt = VT_BSTR; 2 |+ ^% `& M) ^* V* m4 {) p pokeVariant[1].bstrVal = itemStr;: w% g) @! B5 C) W( d" W" a$ V; {. P
/ [4 P# o% H0 F) D' J+ \& k
topicStr = SysAllocString((WCHAR *) L"system");* T8 P, {: _& {1 _2 y
VariantInit(&pokeVariant[2]); 9 v+ K6 X3 h: r! Z0 a$ d
pokeVariant[2].vt = VT_BSTR;/ h% R. t: z7 g% `
pokeVariant[2].bstrVal = topicStr;; P, K+ [! `# P9 O' t5 j8 i% F
' d! z! {8 o: i; o4 j1 M- K// Set the DISPPARAMS structure that holds the variant.) ?' U2 g ^7 I, l
/ S5 ^% f3 s) {" z5 Z; W dp.rgvarg = pokeVariant; 9 P7 m; p$ J; z( H6 R0 @& q dp.cArgs = 3;1 f$ n, T- [# D/ j
dp.rgdispidNamedArgs = NULL;6 y3 q+ w2 f$ j' I7 e" Q
dp.cNamedArgs = 0;) q7 ]- P8 @4 u3 e' J6 g# B
1 U2 |1 y2 }; v/ ^6 e
// Call IDispatch::Invoke() " f7 g# u( ?/ `5 w M3 G3 g% [; `2 ]* Y! J1 h S
hr = m_pDisp->Invoke( 8 k2 l" `6 \( ^4 x9 ? pokeID,: d! X2 u* ]) Y h- h1 D
IID_NULL, ; I! u8 w9 V2 V! K6 g LOCALE_SYSTEM_DEFAULT, $ e1 t k0 t+ C4 f r DISPATCH_METHOD, % G* h( F( e+ U1 y, o- V" N4 ^ &dp,8 x6 e- C9 C; q' O' Q1 m# Y3 U
NULL, y6 \/ I2 w) U2 ]0 w3 Y+ `; g
&ei,: R9 h$ L( m3 Y6 E! O- B
&uiErr);5 Y, ?# E0 q% |# y% b3 z
5 v' \4 i4 [6 x" n* S SysFreeString(topicStr);. [: ^6 l+ v% U5 R: M
SysFreeString(itemStr); , }6 A: V! ~: H3 ^ Z. p/ M1 t SysFreeString(valueStr);8 D6 ~: q4 v! v8 r; e3 x
% t' ~6 G. ?" U+ z$ ]
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???5 o x$ ~, T8 Q+ b3 {* r
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????9 P, h" e% F# c. C5 M& W& W: u
4 ~2 B4 I j1 K! d: `) `8 |' l5 D! Q; Y0 c
2.这是request的程序 ' j" k% T: A& |- S' o// Request a value from Extend: h2 c- J. z% r$ P2 i& G
//# e% N7 C- e+ Z3 d; V
// Initialize the variant that will hold the BSTR. Set the variant's 2 L* R2 ?( \7 u& Y9 J! E// type flag to indicate the fact that this variant holds a BSTR. Place the ) t' Y- w- q" ~, u" F// BSTR into the variant structure.' d5 E5 O! N! H; N" {
8 ]. b1 B; w( b E8 _0 Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 G4 ]2 d$ ^& \ i- c" E
* A1 `3 ^, H; C* s: X, W+ j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) `6 {) y$ E9 m$ w2 a# C R
VariantInit(&requestVariant[0]); 7 @" E6 i5 c. z8 w requestVariant[0].vt = VT_BSTR; 3 o2 ]' I) m( q) l7 O requestVariant[0].bstrVal = itemStr; 9 X: \0 R) x4 Z8 G& Q6 ?, Z" F
topicStr = SysAllocString((WCHAR *) L"system");& _' Z5 y+ Z, }0 G
VariantInit(&requestVariant[1]); 5 e' J6 {1 J3 B |
requestVariant[1].vt = VT_BSTR;2 X; z" a4 A8 ]$ l# \" \3 o$ q
requestVariant[1].bstrVal = topicStr;4 ?; b1 A6 W& r' K
7 ~+ R+ K7 \: M" z% d
// Set the DISPPARAMS structure that holds the variant./ @7 `5 i* U( D4 {0 u
, g9 L {0 V5 x% Y" E dp2.rgvarg = requestVariant;! n0 ~: e0 w; y% v, S
dp2.cArgs = 2; R* W. I. y8 h) i |6 B! n4 x- | dp2.rgdispidNamedArgs = NULL; ^ X7 T1 K S. F; l( v4 v dp2.cNamedArgs = 0;- i+ @2 @* ~- i
% Y; g# k! Y# u) [% {2 D, J
var.vt = VT_EMPTY; 5 N) O$ _' P; ]% l5 {% f. k: j5 G) t# x; F$ g2 L5 d9 E6 U j
// Call IDispatch::Invoke()$ Z7 w8 D' ^. l' a2 g- T4 ~
0 w; J# O6 W9 C$ C! P hr = m_pDisp->Invoke( 9 Y$ o( Y+ i ]/ K* s requestID,8 S) E1 @: Z3 D3 G) h( d
IID_NULL,& v( e6 P$ N4 \; \
LOCALE_SYSTEM_DEFAULT, 0 h4 i- y# d! E) S7 ~9 J9 y DISPATCH_METHOD, 7 \: L' x- v- H9 ?9 W) M! T: j &dp2,# ]$ `) q) d6 \4 `+ t+ G- [$ ]2 c
&var, 6 o; I s! z/ U' k &ei, ! v; B: F m' z) o0 ]+ W0 R, e &uiErr); ) [6 j" X. k# L* D8 M7 |1 c. ?0 Y% e- {1 @+ i" {: [
SysFreeString(topicStr);: I! D2 x+ z1 v1 A. y
SysFreeString(itemStr);) i V6 b' s- }. w$ H/ `
请问该程序是获得extend里面的哪个值?# r1 t; V: P# |0 }) t. _
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????