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: 7 G4 }$ r% h/ W. v/ JName = (WCHAR *) L"Poke"; 6 I$ Y1 I# I% z+ o$ j# }, q 5 c2 E/ X i% b; G4 `; m- U hr = m_pDisp->GetIDsOfNames (1 R3 ?3 X/ v# j' _: L9 k# B
IID_NULL, // reserved9 ]8 N, d2 J& D2 ~0 h) ]
&Name, // Array of names to get IDs for! d% l( @# B0 @- k
1, // # of names in the array3 O2 I- y! d W
LOCALE_SYSTEM_DEFAULT, // System locale1 B. _% P+ A! X: V+ t
&pokeID); // Array of IDs to fill on output* ]0 F* Y* s. D# O" O. K+ Q2 d& S
) ~3 P/ @. Z+ ^ if (hr) 6 e$ @1 K# \$ e { & ]4 q5 l- M& e4 ?: O MessageBox ("Get Poke Unsuccessful"); 6 W' m! l/ J! ?" m' R% U return;2 G' \9 ?0 q+ B' h; i6 T9 ]; p
} * F6 y$ [$ w& ]3 ^( w/ B# T6 D3 q
/**************************传递数据给extend**************************************/ 7 j3 V. z- I; ^. b+ D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- j O$ @' `) {% r: F
# K7 p! T7 g0 N2 B5 K. Y1 b! k
valueStr = SysAllocString((WCHAR *) L"1232");& J# ~/ r; ?! y- v* G8 g- }
VariantInit(&pokeVariant[0]); / K) p, t4 ~5 S( v1 E4 c% Z) b4 M pokeVariant[0].vt = VT_BSTR; 9 Q. j2 n0 S/ S; x8 d' C' E0 A8 b pokeVariant[0].bstrVal = valueStr; ( P) h; C, t: o3 d4 w- h6 V# }" _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 D- F$ N6 j+ _3 j
VariantInit(&pokeVariant[1]); ( ?/ p1 r$ v+ R# ]$ H; @8 C b
pokeVariant[1].vt = VT_BSTR; + Q( [% G7 q! }: H5 `* v! g pokeVariant[1].bstrVal = itemStr; + N }; p0 F9 g" I% _: i* v' _! n7 M6 w: V/ h0 H
topicStr = SysAllocString((WCHAR *) L"system"); 6 \1 i8 j+ l3 }6 [9 H7 a VariantInit(&pokeVariant[2]); 8 t+ F* l- |2 \* s4 t; U5 Y
pokeVariant[2].vt = VT_BSTR; # l/ J7 Q! r. F! a( L1 Z1 D pokeVariant[2].bstrVal = topicStr; ' ^5 i- T' m2 L2 G. X" P ' V# L. u' M4 R7 ^) U, Z) w// Set the DISPPARAMS structure that holds the variant. 2 y! ?' L2 B' T$ i: e. L0 { \3 s+ ]1 x* I5 \+ }8 G
dp.rgvarg = pokeVariant; ' B" M- d: I5 ?+ F/ o( _' k dp.cArgs = 3;$ l/ ~; y! \7 h8 X5 B
dp.rgdispidNamedArgs = NULL; ) C* F9 `0 i. F) }' w# E dp.cNamedArgs = 0;5 `+ \6 `3 R( E
! k* v6 ]% e, p8 z* S) p& K hr = m_pDisp->Invoke( ; U/ S+ N5 x" V- l pokeID, 0 [9 n& o. G- j4 O/ g IID_NULL, & ~- {( H- w) e3 ` LOCALE_SYSTEM_DEFAULT,. }. c2 L5 x2 r/ f+ X L
DISPATCH_METHOD, & v x1 P8 f9 N3 e0 l &dp, r1 o$ u* u4 [3 j/ C9 x
NULL, 7 }; s, r( X9 g2 v &ei, - M$ \4 z b7 w* {) g8 V) L &uiErr); ?/ P) E6 `( z* c/ W: _ K, O* O! n: T. C) s% p! [5 |
SysFreeString(topicStr); ' O1 e. z1 A1 h5 _2 ^( H SysFreeString(itemStr); 7 F# @6 G3 x; P SysFreeString(valueStr);& M1 M5 e1 L. Y* V, J# k3 O
' a. X8 b# z# I7 o N6 c6 \! ^
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???! A# X9 ^# C9 l) g
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????: q# G6 a$ B; F' k
W- f9 a# e& e1 ` 4 t8 z9 W- r# }. K, u2.这是request的程序9 S6 A4 r4 Q, ~' x# A
// Request a value from Extend7 ?$ _* v& @1 O( P
//! E0 A) _! A7 e6 y
// Initialize the variant that will hold the BSTR. Set the variant's5 M5 b& O1 |; {7 _* S& ]
// type flag to indicate the fact that this variant holds a BSTR. Place the , }, I8 c7 Q+ r- y) n$ G// BSTR into the variant structure. ! e9 V8 m2 {/ h# V. Y' c- w: r) E4 N% k+ R+ N% f" J1 a3 ^
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ ]- Z" ~+ \9 o2 n" U& i
& N' |# G" R' S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) W* y( e, H+ ^
VariantInit(&requestVariant[0]); * c0 L, h9 [2 G$ y$ _7 a requestVariant[0].vt = VT_BSTR;* [$ ]. `. z. A1 G# O/ E! N% v
requestVariant[0].bstrVal = itemStr;# L0 w* N3 J, i
# x- @$ V4 Q2 n) p7 N
topicStr = SysAllocString((WCHAR *) L"system"); 4 r4 H I) U5 {! I) d VariantInit(&requestVariant[1]); 7 A! h# E0 I# ^! _/ v9 t# q
requestVariant[1].vt = VT_BSTR; ' k' T1 Y+ e% I. M% N p5 U( G/ P9 F) G requestVariant[1].bstrVal = topicStr;8 Y/ L$ Z- S9 \3 T
5 ?0 Z; t+ n/ L* e0 t// Set the DISPPARAMS structure that holds the variant. 1 }1 V% i+ ^$ L3 X . U. y) _' _- r" P' M; Z dp2.rgvarg = requestVariant;$ T( K5 w; l: O0 s
dp2.cArgs = 2; % M# `/ @: l9 V" q) I* w dp2.rgdispidNamedArgs = NULL;, O, I5 b" U2 Y; {8 J$ E6 Y
dp2.cNamedArgs = 0;$ B% O/ E4 F. d2 l/ {$ N- S
4 A. B& V+ F* i* y5 g var.vt = VT_EMPTY; # }4 }) J4 X7 }6 h7 x) g ) {1 ]" g8 E0 N+ o' x9 t! I// Call IDispatch::Invoke() ! [1 T, R* k5 S: K% H" U' [4 m) {: K: p& O5 W# i
hr = m_pDisp->Invoke(8 C7 ]7 z& Q+ ~1 X/ z. ?* d
requestID,5 v' n% d( \( j3 S* G
IID_NULL,3 b( j# D" P% c* t& _
LOCALE_SYSTEM_DEFAULT,5 d5 h$ s) L# \# Q7 _- F$ w
DISPATCH_METHOD,* N: Y$ ^0 {( ]9 ~% m1 d/ N
&dp2,8 q3 J9 b4 R f* O$ T
&var,$ x0 Y6 B9 C# Q! q& y9 D4 R7 @
&ei, / n1 A5 c) Q$ W9 B/ o &uiErr); - b6 ]+ r/ ^6 J$ w6 R6 Z % }) t4 J" K# a: P SysFreeString(topicStr); 6 ]- W. ^7 C- e! Y# l8 s8 B4 d8 w$ p SysFreeString(itemStr); ) K# y% {* `% V; g0 `请问该程序是获得extend里面的哪个值?+ e5 L( G$ ?. Q* R
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????