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: ) O" t8 d2 p( {5 L. vName = (WCHAR *) L"Poke";7 G) Q6 b4 I# L" S5 K X
/ J$ r9 `( |% w5 B; B4 y$ } hr = m_pDisp->GetIDsOfNames (# \3 c$ S K* V7 J
IID_NULL, // reserved1 l4 D4 c h3 y
&Name, // Array of names to get IDs for# K5 ?/ y! b& X( { P
1, // # of names in the array 8 p/ A" P/ j1 O LOCALE_SYSTEM_DEFAULT, // System locale ) c9 T/ U! ~: M6 L &pokeID); // Array of IDs to fill on output5 L1 W2 T: V% B
! N8 @7 x+ d7 U8 F if (hr)6 l% J! K0 k3 P
{ ' i/ K& @* h& h$ k MessageBox ("Get Poke Unsuccessful"); + w+ i* z$ K, T# k return;4 k# h4 `; B9 `* v4 _; P* c$ f" v5 E
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/**************************传递数据给extend**************************************/, L a6 Y8 R3 H* d4 P6 ?2 |
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 j2 n$ S, u: C' l- R ! r. r+ u8 x6 s w valueStr = SysAllocString((WCHAR *) L"1232"); 0 b. U! g {) q+ F- E7 t2 u& {' K& i VariantInit(&pokeVariant[0]); ( V8 \' d$ j2 t5 p! D
pokeVariant[0].vt = VT_BSTR; & R' M+ T& `- T5 O0 K6 N pokeVariant[0].bstrVal = valueStr;* o% |$ l. M: e7 N. a
: o2 T$ K% m. z0 f3 S$ y9 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 f3 y) _! f0 Q9 y VariantInit(&pokeVariant[1]); 1 r' K" O+ x2 V4 P1 ^ pokeVariant[1].vt = VT_BSTR;' L) ~, u" s* X5 S: T9 ] o0 m
pokeVariant[1].bstrVal = itemStr; 4 P' m% B1 u1 A. B& K9 g+ Y4 |) k+ H) I c/ Z
topicStr = SysAllocString((WCHAR *) L"system"); 0 I2 X0 X; L) u8 | VariantInit(&pokeVariant[2]); 1 `; m L; M$ H. h% W, y pokeVariant[2].vt = VT_BSTR;" D5 _/ k) \. C8 Y/ c
pokeVariant[2].bstrVal = topicStr; ; j2 i( S% f5 a" {% V0 e# F4 ~; ^5 C" m' Q: r
// Set the DISPPARAMS structure that holds the variant. ' e/ E# ]: k0 f5 ~2 @( P/ `' B, v* _1 W0 J% l; Z
dp.rgvarg = pokeVariant; . r( |; x: u: r3 _) S' N dp.cArgs = 3; : G$ T: O- ]: G; p7 g dp.rgdispidNamedArgs = NULL;/ p) l. L( J1 h0 \; S4 R
dp.cNamedArgs = 0; 1 s. o( A" Q9 r6 l* d7 W+ Y8 m* \: L; Q7 N
// Call IDispatch::Invoke() " ^! r( V; X3 ^) W4 U p4 c' K1 d9 @8 H hr = m_pDisp->Invoke( 4 P" t& r' O8 ?1 l9 I" [$ A7 H \6 G pokeID, 2 U* [# e+ h5 r5 v IID_NULL, 0 U1 Q* W8 t) [4 C! m LOCALE_SYSTEM_DEFAULT,7 P4 A! H" Y; U- H ^: M) V
DISPATCH_METHOD, . ^6 m3 k6 u; @8 L+ c% {9 E &dp, ^# {2 {5 r' Y `7 l) s8 b+ h NULL,- l# i6 C/ C1 ~$ O; f$ Z! W5 Z7 n
&ei, , A/ b9 a1 P3 c+ P+ T: z4 b &uiErr); - f8 H/ u2 m/ w5 n: E5 @9 V4 U( C& l1 g
SysFreeString(topicStr); - p. a7 X2 j( v* g; M @ SysFreeString(itemStr); * h4 H2 t3 O4 X3 d/ n0 B! m8 y# @" a SysFreeString(valueStr);' s" N: F. U& V+ I, g" Z
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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???( V7 d9 J+ ?/ z4 N
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 _" Q$ ]3 [& `' t4 f' E+ ^* X6 A$ ^" \- V1 L
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2.这是request的程序# _0 K3 r n8 g) R) @
// Request a value from Extend0 |9 L0 `% d& H( j+ M. x
// 0 O/ a* s5 J: Y( ^. X" v// Initialize the variant that will hold the BSTR. Set the variant's $ l% l! L" {$ w( @6 _9 [// type flag to indicate the fact that this variant holds a BSTR. Place the / ?$ ]1 C' p- l; u* n/ S0 ?// BSTR into the variant structure. ( _# S+ V# e- n6 w7 n ' Y% ?5 H% D2 n, a% N5 m- U/ B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) f. ^% l- w4 D* N; C * i( z3 i2 H, F9 ^$ H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! s9 f- r; D/ D* n
VariantInit(&requestVariant[0]); 6 j3 S) ~3 u8 y4 O6 G+ Q% q requestVariant[0].vt = VT_BSTR;. ]6 n" v6 g; I K" w/ u. b! ]
requestVariant[0].bstrVal = itemStr;7 t8 O4 c2 a* S, z$ O2 M
, t8 h( z) y+ t. a topicStr = SysAllocString((WCHAR *) L"system"); * S8 u2 Q1 t; d* ^( ~- f, {9 C VariantInit(&requestVariant[1]); % E! u6 ~1 B/ L requestVariant[1].vt = VT_BSTR;7 @8 a8 j- @4 t
requestVariant[1].bstrVal = topicStr; & M# _. i4 h' ~4 T% C+ p. L% L1 i9 W6 {: b/ w5 b0 }
// Set the DISPPARAMS structure that holds the variant. 5 I& t0 `$ y. h% s5 c 6 P- W( N. N1 y: |' Z3 x3 ]; @8 D dp2.rgvarg = requestVariant;" U* s6 L! i' Z T$ U+ m5 a
dp2.cArgs = 2; # \9 O+ u0 y3 F. [1 P: Z( L dp2.rgdispidNamedArgs = NULL; # }4 f8 J: c: X+ `; @0 Y1 M dp2.cNamedArgs = 0;3 q* Z& U8 G0 A4 b1 g/ R$ K- F
Z5 j7 e' I# X9 l8 n) @ var.vt = VT_EMPTY; ( T5 Q' w0 A5 X4 O& V 9 y2 c8 f7 j0 l// Call IDispatch::Invoke() - G5 b) H3 f: R' Y( E' v: a $ [3 ~! ?- m. c2 w1 b hr = m_pDisp->Invoke( : |5 |, h* v2 y: I& }. ~ requestID, ! T4 L7 W% w3 U6 p: j IID_NULL,! K2 r% h4 x2 o2 C5 H& e, R- s
LOCALE_SYSTEM_DEFAULT, 6 h" s3 o: R" G, F; c4 l6 { DISPATCH_METHOD, - x+ x& q3 q! f8 _4 O9 F &dp2,8 O8 n+ z$ D/ \6 K) u! D' U
&var,! R* [$ T& q& }. j W! P
&ei,) M9 R# ]8 P5 P6 w" E" w
&uiErr); ( ?: Y* [/ Z. j4 P8 H' O4 C% Z. F2 t! r
SysFreeString(topicStr);2 T- T$ t! V. ~! h+ W
SysFreeString(itemStr);6 d! l# K( M2 L: ?
请问该程序是获得extend里面的哪个值? b* A8 o' H+ [1 i2 e& ^ i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????