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:2 q+ n& T1 m0 ~# _2 m9 j. K
Name = (WCHAR *) L"Poke";7 r4 O2 r: Y# o: y5 C
1 m0 N; T. z8 @4 P0 G hr = m_pDisp->GetIDsOfNames ( 6 x, n7 h- U( q* ^, s/ g IID_NULL, // reserved7 y7 m% n- f) ]4 a/ y/ n
&Name, // Array of names to get IDs for : f5 N3 {2 V) C, V9 { 1, // # of names in the array 1 e" h6 L( v3 ^. w3 I LOCALE_SYSTEM_DEFAULT, // System locale4 T; L2 S0 u: w+ F$ H1 S7 D
&pokeID); // Array of IDs to fill on output 0 z5 |) B* D/ l4 ^3 a2 ]/ B/ `6 F a 7 Q' ^ g( P+ }* C, _ if (hr) : p$ @8 \, k2 ~: X$ { {( W _" E# P8 x7 Y. `
MessageBox ("Get Poke Unsuccessful"); ' h! p) F+ G* E) V return; . U- h! a) x* A S5 |& E1 H4 K }3 U8 Y7 q6 J; Q% f* k) D
( b- c) Z0 d" j) R' A/**************************传递数据给extend**************************************/ 2 Z4 u/ c' t" `4 R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - z* V0 D4 `" D( a) @* z @/ p2 E/ ?" f# M7 R* i
valueStr = SysAllocString((WCHAR *) L"1232"); ! w- {, y. h: x# x! v! b0 x' A0 A VariantInit(&pokeVariant[0]); ! ~ _6 U8 K' n& i& r
pokeVariant[0].vt = VT_BSTR; 0 [7 U1 A7 D6 h$ p' }* z/ K pokeVariant[0].bstrVal = valueStr; ; k9 _+ c; _! D6 Z' u$ n( [% S [# W9 J. y5 z( x, o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 K8 W% f ]; n' S. {
VariantInit(&pokeVariant[1]); / r, [6 v+ A# O$ W, u7 D pokeVariant[1].vt = VT_BSTR;( }0 J, H4 C3 d+ y3 l7 V6 S: m
pokeVariant[1].bstrVal = itemStr;2 z. ^6 j$ D7 C; m! l; I- F. W
7 \7 e# Z. o3 {, C7 i+ S topicStr = SysAllocString((WCHAR *) L"system"); % p" t4 H4 y J S1 U VariantInit(&pokeVariant[2]); ( N% z- C6 S1 M pokeVariant[2].vt = VT_BSTR;% |/ ?# W8 e# E
pokeVariant[2].bstrVal = topicStr; + O3 z/ ^* X6 R* g& u 6 R' b' O5 h) s6 m$ a4 i// Set the DISPPARAMS structure that holds the variant. 5 p0 E) n; x0 q8 \- @( {" t0 O$ v$ K1 }# x* @
dp.rgvarg = pokeVariant;: b. J: G# J+ ^
dp.cArgs = 3; j: G, G4 V& F, w dp.rgdispidNamedArgs = NULL; ( W& \0 e; p% i3 ^4 n: J dp.cNamedArgs = 0;8 V5 R: I- r2 W# z
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// Call IDispatch::Invoke()+ ~( M* T ~7 j- ~3 B$ }; Z
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hr = m_pDisp->Invoke( 4 z \ }0 k* G y( v- y. d pokeID, ) i( P8 b. Q2 U& m' P6 [+ x IID_NULL, ! D% {' m$ r+ M/ l LOCALE_SYSTEM_DEFAULT, 7 F& t* P) x* R- B" e/ Y" S DISPATCH_METHOD, 1 B$ M- P3 d& D9 M t3 i N' s8 @ &dp, 8 R7 w0 a% V. u$ L! y1 f NULL,* f! r2 E3 U" J( z6 V
&ei,/ M- C3 A6 X1 B i2 n
&uiErr); ' G5 K4 v) C) O, Q# e% g1 n! ~- P c. G# }, o' U
SysFreeString(topicStr);: R [) ~" h2 r m4 K% G
SysFreeString(itemStr);4 X/ g1 Y6 S% S A9 K) e
SysFreeString(valueStr); $ ]- V" R8 Z' p) e4 N- y; s5 F* G9 G4 m( `4 `& T' h5 }
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??? % ]6 w+ l9 P, I6 z7 \" o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????6 B+ Q0 z+ q* T5 R( I
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2.这是request的程序 0 e. P' u) U. g1 r5 X4 i// Request a value from Extend/ I8 z1 J+ s9 a7 P- O$ I
//. q' `$ t' f6 N \
// Initialize the variant that will hold the BSTR. Set the variant's4 Y2 K6 V2 M+ D8 F( E9 N0 a0 K
// type flag to indicate the fact that this variant holds a BSTR. Place the7 C$ N+ P/ k0 c4 o* W/ G- k
// BSTR into the variant structure. - j7 `. X6 A' D5 s1 h2 Y0 o. S9 ]( r5 i, H& Q5 D
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 l5 f7 u+ s/ P- o# m; }8 @
6 F1 Q5 T& q1 [$ a4 g4 e) U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( F! f9 ]% R. L" D. ~0 o VariantInit(&requestVariant[0]); # l+ k% Y, w- @$ p
requestVariant[0].vt = VT_BSTR; % y. j& m4 M. K requestVariant[0].bstrVal = itemStr; * |% D" a; L `: ~+ B) j/ |4 ~* J6 b- {2 F
topicStr = SysAllocString((WCHAR *) L"system"); `3 W( \$ M4 E. r9 |" I# V v! E6 F
VariantInit(&requestVariant[1]); 9 m8 i+ ]& m' T" X& S( ?6 M, z requestVariant[1].vt = VT_BSTR;6 y" w+ i6 M9 [) D% L" h
requestVariant[1].bstrVal = topicStr;7 ]# |3 @3 y8 w4 H4 B
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// Set the DISPPARAMS structure that holds the variant. # k. n( y2 D2 P; B' J6 R( z( J# I( [- V1 Y# e, ?8 X# h
dp2.rgvarg = requestVariant;! J% n/ |+ j# r1 Y+ J: Q8 }
dp2.cArgs = 2;3 _7 N' n! |/ H$ w
dp2.rgdispidNamedArgs = NULL; ' {/ G$ `5 N; k: G+ S+ p/ S dp2.cNamedArgs = 0; " l: q0 r* g( F7 k$ C0 H2 K8 z6 L. H6 Z) f% s
var.vt = VT_EMPTY; ) a$ T; n* p# O: f4 A3 Z* t - q/ S2 L- K8 ?// Call IDispatch::Invoke()# A% c9 k `: P1 a
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hr = m_pDisp->Invoke( % V! l: Z+ u: q) P+ y( j/ V requestID, 1 a% U! s) A8 k2 @$ t3 ^9 f# } IID_NULL,( y; s p8 A0 z8 ~6 Y
LOCALE_SYSTEM_DEFAULT,3 z5 y8 M/ k5 B! p2 L
DISPATCH_METHOD, , z, u+ y% ^4 Y# k) B* `( t! P3 p) h &dp2, . }( g. F4 n2 M; r5 I- O/ ~, \ &var,/ V7 |: B. d: t6 q' L! F B, G0 @$ }+ N
&ei, * B& c5 [% h& g8 Z- D &uiErr); $ K- x2 I9 G5 i) r# }+ U0 y: p/ U' X3 u$ U S, X1 i
SysFreeString(topicStr); 9 F5 C+ }& \- Q- |7 X, c: O2 O SysFreeString(itemStr); , v; r; D5 b, U d. k请问该程序是获得extend里面的哪个值?1 W& B0 X: c E- J4 @
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????