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:0 s9 z9 n' K! s% J+ x) ^6 d) ]% w5 G
Name = (WCHAR *) L"Poke"; 2 B: q1 } u( B/ A0 q / i& Y2 y c+ j4 Z5 A1 \8 o+ h
hr = m_pDisp->GetIDsOfNames (0 M7 X# d: o: U3 F! W2 Y
IID_NULL, // reserved5 N3 }8 o* B3 s+ H7 }5 v5 C# k; i: n
&Name, // Array of names to get IDs for 3 H6 E8 ^& ^- x& z* ~ 1, // # of names in the array/ b( A. q! c2 j- X, }8 ~
LOCALE_SYSTEM_DEFAULT, // System locale W- e9 c" f$ \4 v8 e; l) T( L &pokeID); // Array of IDs to fill on output) C3 s7 G/ ^( Z( b. ?6 L
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if (hr) 2 q' H3 _& S4 y9 `" J4 a5 U { : u' `% W5 c$ ~5 C! n MessageBox ("Get Poke Unsuccessful"); $ V* L; x+ N% E, }" S( g return; ' U# g3 f7 C! _2 Z3 x" T, x9 B$ W } ' Z3 ^3 \) j# T T8 w/ g) C0 `% {0 e3 X0 }2 M+ W) `
/**************************传递数据给extend**************************************/ 9 \+ C& S$ i% `1 x6 | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 v+ u6 F% e8 | 6 y: V6 q o9 u' | valueStr = SysAllocString((WCHAR *) L"1232");! a- z5 B3 R& t5 U% F, d9 ?9 E
VariantInit(&pokeVariant[0]); 2 j4 A x s# O3 R pokeVariant[0].vt = VT_BSTR; : i# u9 H- K* S, t1 `% S/ ]0 { pokeVariant[0].bstrVal = valueStr; 6 [; N6 z r5 }$ L* h6 K0 m" J% [& n% i. G- L. k2 V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 r" u1 L* o& W# y4 U4 @8 q, D VariantInit(&pokeVariant[1]); . r7 i1 J6 B+ F5 q9 R4 P2 |
pokeVariant[1].vt = VT_BSTR; 6 ?8 ~3 k# C0 |6 ?7 @9 i pokeVariant[1].bstrVal = itemStr; ' Q" }5 T& T* u2 C j/ k# L' h% K topicStr = SysAllocString((WCHAR *) L"system"); a/ }$ O- N# g. X- `, L8 H
VariantInit(&pokeVariant[2]); . `5 c' i! u5 j/ k# F: n pokeVariant[2].vt = VT_BSTR;* W" X5 ~1 J4 f8 S7 ^
pokeVariant[2].bstrVal = topicStr; 3 P) O k6 z# X% X0 B" X8 w8 N; O1 n9 O D7 ^8 K0 G' D. ? z( [0 [
// Set the DISPPARAMS structure that holds the variant. * N3 P! v: N8 B1 S. J, Q( B! p0 y% a1 k! X& r4 M
dp.rgvarg = pokeVariant; / V. p1 C9 A1 \0 e F& E' R d5 `. |3 ` dp.cArgs = 3;0 @2 A$ z }8 c: C! V' \) a" f
dp.rgdispidNamedArgs = NULL;! f$ v' E* f' N
dp.cNamedArgs = 0;; @; Z' m# R2 h6 A2 n9 G+ u. X
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// Call IDispatch::Invoke()' f) g8 B3 f, h+ H
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hr = m_pDisp->Invoke( : E, L2 ]( P- w" z& [- A0 p+ K pokeID, * r4 d0 e3 c9 w IID_NULL," |$ P- `: `* D* K
LOCALE_SYSTEM_DEFAULT, + r6 F4 I# u* M. p7 q5 y% o% i DISPATCH_METHOD, 0 t+ W, {$ X' G5 R( q5 ` g &dp,/ D6 q$ y c% r- D
NULL, 7 W8 C6 {) q( R9 | &ei,: y' ~/ k$ C& l
&uiErr);3 D' j* G S. T" |. A& B: K, p5 m
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SysFreeString(topicStr);6 u- V7 y* [$ H( I
SysFreeString(itemStr); 7 ]' H. j$ _3 b O9 n$ M8 A SysFreeString(valueStr); / z7 Y# K% l( m5 l7 D N% Q: ~2 e3 M h
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???( d4 i" ?2 t0 r0 v3 z( a4 \
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????% L0 I! j, m6 \; l, r
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, \; t! _% B, d: a7 M2.这是request的程序' M! S% d5 V( P8 E+ G
// Request a value from Extend 7 r( [2 H8 U: [) ]/ D$ o2 G5 i% ~//+ w7 S; _! E. z' R9 S5 x* z" U _
// Initialize the variant that will hold the BSTR. Set the variant's- W8 q9 i( U( _7 c# b7 l
// type flag to indicate the fact that this variant holds a BSTR. Place the n: s4 V ?% {% |1 `2 L- B( V// BSTR into the variant structure. 4 b+ N0 B2 n! J3 D0 y 6 R3 N% N6 ~7 N( O' R4 h* E' @8 M8 W requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 h* |# j& E* @$ U / O, l7 c. j* c# N9 Y4 K( _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 F I5 D! n- i/ G8 f VariantInit(&requestVariant[0]); ) ]0 B/ [2 Z6 \% m2 J
requestVariant[0].vt = VT_BSTR; 1 Q- |0 ?3 O+ `+ I requestVariant[0].bstrVal = itemStr;3 n9 n6 T5 n3 s* X
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topicStr = SysAllocString((WCHAR *) L"system"); 8 \4 D- S" k& ?6 h. q5 { VariantInit(&requestVariant[1]); * q- F- z7 R7 @( f requestVariant[1].vt = VT_BSTR; % Z* R; y/ a! O. A' z requestVariant[1].bstrVal = topicStr; 4 i M1 L8 }: Y8 a( K # q/ A# O' F* _& Q0 y5 o2 v// Set the DISPPARAMS structure that holds the variant.( P" Q! `6 @( J+ z3 C! X