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:8 w w) O* `0 l7 b
Name = (WCHAR *) L"Poke"; " |6 V8 t8 q( ?; q # o; H+ M: O4 Q: P
hr = m_pDisp->GetIDsOfNames ( ( D) L1 A2 {8 i2 y. g2 d$ g5 J3 E IID_NULL, // reserved6 b! w; R& t2 O6 s3 R! j& Q. b
&Name, // Array of names to get IDs for2 L. s. N1 o0 m1 q
1, // # of names in the array 4 }' c2 b( \% Q! e% X5 _) K LOCALE_SYSTEM_DEFAULT, // System locale # ^- ]9 V9 l; m) {/ _" h &pokeID); // Array of IDs to fill on output$ j3 G/ ^2 r8 s6 D. y3 |
_& t- w# q5 H/ A3 t/ b if (hr)9 S# x: F1 [, {. w9 M
{ ) w- S7 W# A2 ~- O MessageBox ("Get Poke Unsuccessful"); ! h5 J- f4 \, w+ P return;: O. b: Z- e6 z
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/**************************传递数据给extend**************************************/ / \1 b) e" L# T7 M( Z0 k pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: O/ j' w4 }* P) ]( A$ u# i
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valueStr = SysAllocString((WCHAR *) L"1232"); , P! T6 r2 a4 l1 i- z VariantInit(&pokeVariant[0]); ' O9 Q/ E! a/ _7 [4 E( z1 | pokeVariant[0].vt = VT_BSTR;) J5 g e7 n/ Q% z' D
pokeVariant[0].bstrVal = valueStr;2 T8 U+ P2 W4 G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* V: c- f( O4 S, C( v
VariantInit(&pokeVariant[1]); - z6 u6 }+ x s3 E pokeVariant[1].vt = VT_BSTR; ) y5 Y0 D( N- U# v. t. X pokeVariant[1].bstrVal = itemStr;0 G8 i! y; U+ X
( u% Q; n6 P2 U; d7 h& p$ k topicStr = SysAllocString((WCHAR *) L"system");. ~: o6 q6 ?- W0 L$ @% p
VariantInit(&pokeVariant[2]); 7 |' K# z) P, _4 \% N' E o) G
pokeVariant[2].vt = VT_BSTR; 5 v3 \& w. N- K- E. `9 f pokeVariant[2].bstrVal = topicStr; , T/ c' g2 j- k/ V2 J % }, h' x; f# _// Set the DISPPARAMS structure that holds the variant.) b6 D7 a$ J' R+ m0 q3 E1 F
* x# J9 F- ]) X dp.rgvarg = pokeVariant; ' R7 |, t8 I# I. p) a+ s1 W dp.cArgs = 3; 9 | w: g/ T1 r: T4 c, T7 I dp.rgdispidNamedArgs = NULL; ( g' d! b3 x& i4 U0 c! L dp.cNamedArgs = 0; + f$ `) Z! O2 I. b, t2 u' d4 z " m# X% N) {: r. q6 J( a( E// Call IDispatch::Invoke() 4 x' Q/ Y: d& S9 y) _ & C+ o" Y' c, R" l, V' G6 U, l0 A hr = m_pDisp->Invoke( # m2 T* Z. T* S0 ^ pokeID, 3 j& x) @6 v- | IID_NULL,2 l7 }8 n5 _1 l9 G" Z
LOCALE_SYSTEM_DEFAULT,7 U& _+ A3 b \0 t, B& H
DISPATCH_METHOD,. y% m* E1 m* b8 k+ d
&dp,, o9 p! U# |( }* I" A7 V$ c
NULL, # j! W6 x& ^0 r/ m2 U &ei, # ], W! x& l( m+ n: l &uiErr); - E' X; }" A; u; h. a: L/ A7 m7 H, H
SysFreeString(topicStr); $ @* y$ y, g6 K" J+ T8 U SysFreeString(itemStr); 4 p+ {- z+ n* J9 E5 r SysFreeString(valueStr); 7 B5 b: R" q* Z. u8 a- U. }# ~3 h1 e& V |
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??? " q$ c+ K) m( O) q8 f0 F8 z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???? " ]4 r) u$ T4 C9 J, Z: X* _8 I# K8 \ w9 G
- W2 ^ N* N1 E+ [4 l+ h2.这是request的程序+ l) j3 M. k! Z0 P( J4 y
// Request a value from Extend7 Q3 k& R8 y' E6 P3 g
//% T, |. n5 Z3 F
// Initialize the variant that will hold the BSTR. Set the variant's : ~$ I! _; @4 g5 Z// type flag to indicate the fact that this variant holds a BSTR. Place the ; ^3 t5 D* m8 h& J$ J' r9 ^( M$ W/ _/ y// BSTR into the variant structure.! I4 \" {( N; d
7 ?8 z) m/ b% d0 S& u4 n1 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , Y, x0 k3 u" @4 r- k( t& A- _8 R ! P8 a: t( l# D: Y' x+ P2 ]8 { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & q9 D6 X( E1 c VariantInit(&requestVariant[0]); Z8 J0 ^; s2 b% y1 S3 ~* Y requestVariant[0].vt = VT_BSTR; + V: |4 H& i5 K: B" J5 z7 |( [6 L8 } requestVariant[0].bstrVal = itemStr; 3 n- F/ R. M/ r2 F7 ?7 a# D5 P, O! p- c7 I* [0 N6 [9 k
topicStr = SysAllocString((WCHAR *) L"system"); 3 U/ s3 y( H+ K; ?" J# c VariantInit(&requestVariant[1]); . b9 `: y7 N5 T( s2 E& J' _
requestVariant[1].vt = VT_BSTR;3 H, {2 E& f0 F
requestVariant[1].bstrVal = topicStr;1 G6 C9 x. @& g/ s
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// Set the DISPPARAMS structure that holds the variant.' a9 y5 l* N0 Y( Z, Y, J# S1 |
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dp2.rgvarg = requestVariant;+ L/ ]; ~/ r$ B+ A0 f$ o
dp2.cArgs = 2;# a% p- Y# ?) b! F
dp2.rgdispidNamedArgs = NULL;. U3 d+ d/ l2 M: ]# m6 G) I% c
dp2.cNamedArgs = 0; 8 K) d+ R( C2 r, \% ` 2 ~( N0 D( c# v9 j; z" m0 @ var.vt = VT_EMPTY; + F* f. H/ S% X( x1 j$ a0 I( \9 [4 k0 l& c4 i C
// Call IDispatch::Invoke() " f$ Z- I: ~ w! W. e' A5 u / l8 C4 x& q4 t+ C7 w( R hr = m_pDisp->Invoke( 8 M3 F* O( b1 a2 @ X& D8 U requestID, F+ N( C# g) ^' n IID_NULL, ) K/ K3 A/ g3 ` LOCALE_SYSTEM_DEFAULT,- Y& a5 l+ E( T- G
DISPATCH_METHOD," _2 t7 } j4 ^9 `! ^8 U' f/ Y) G4 d- [
&dp2, 2 m* Y( X" V- K6 f* r5 f7 W! X: D &var,/ {0 U( Y4 o7 N/ F. d8 T3 i4 N `/ ^
&ei, # j* R3 ?9 o# h &uiErr); J! { [ v1 U& t! j% @3 v8 ^& N& W; `. ^6 P
SysFreeString(topicStr);1 U) E! }* l4 D l
SysFreeString(itemStr); , b% t% E( H& x+ |' U3 i6 ]请问该程序是获得extend里面的哪个值?: t# u2 C( S; `' N
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????