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:; x3 k& }8 C& a
Name = (WCHAR *) L"Poke"; ' n2 S, F, A2 }8 D ! N7 ^" C3 Q& K; [: G" V
hr = m_pDisp->GetIDsOfNames ( ' F+ W- V* E+ W+ K) }8 j6 o( z$ C6 ~ IID_NULL, // reserved/ r0 Q H* `- l$ _7 s
&Name, // Array of names to get IDs for% {9 R2 t3 L X; w
1, // # of names in the array n1 t+ _3 K- g
LOCALE_SYSTEM_DEFAULT, // System locale* A3 P( H* \$ N2 @
&pokeID); // Array of IDs to fill on output! J/ c; u& F' S
7 d* }' Q6 D4 h3 T5 E: o
if (hr)/ T9 X. E$ F' C: w$ A$ X' @" l+ D
{ 9 Z& a& V+ v( B MessageBox ("Get Poke Unsuccessful");& @. y: ^4 A6 t
return; % W* I2 x0 F' u; y+ V" g } 9 Y; @% `" T1 E( T; ^' V9 V- C3 {) B7 a; ?; K$ q& [- |
/**************************传递数据给extend**************************************/ 8 T3 g6 E( a2 f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * _7 {6 o, o# V) g4 E' j; c8 l + W4 c; Z- t" \9 k7 k, U valueStr = SysAllocString((WCHAR *) L"1232");5 o% @8 e( ^6 w) y' I- s
VariantInit(&pokeVariant[0]); $ b) G5 u; ]( @' } pokeVariant[0].vt = VT_BSTR; ! R% f. P/ U9 m" F Y pokeVariant[0].bstrVal = valueStr; ! ]$ d6 S5 F/ [" [' `$ }1 O: @$ _9 c: L9 P# e9 A+ V9 A( m
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 r6 `) G+ E R2 | f
VariantInit(&pokeVariant[1]); 0 w h4 d+ i, U6 D2 y' d5 x. S8 t pokeVariant[1].vt = VT_BSTR;6 t& N9 ? M' a* U; l) r# f
pokeVariant[1].bstrVal = itemStr;/ h9 y' ~5 X( L7 r7 X0 o! N
# Q% A" M$ X% P) l9 v4 y/ R4 p
topicStr = SysAllocString((WCHAR *) L"system"); * C! `, X8 @9 V! M VariantInit(&pokeVariant[2]); & Q' V! _4 N; Q3 N# p' }
pokeVariant[2].vt = VT_BSTR;0 j# ^" j G# P z4 |
pokeVariant[2].bstrVal = topicStr; 3 H B$ ]: B3 l% K" v4 r5 O+ K- l$ g7 {
// Set the DISPPARAMS structure that holds the variant. # F2 a" e. C' d9 U6 s* R: d ) x! @' V" Y. ^; z" { dp.rgvarg = pokeVariant;8 R) Z# a, m7 @7 Y' ]7 Y
dp.cArgs = 3; ' K, t) U" y# A$ Y0 c0 F/ v dp.rgdispidNamedArgs = NULL; : |$ R* N S# a( r2 N: [- s( k dp.cNamedArgs = 0;* h# B# Y; o9 X! Q. Q, v
G3 D( n9 n# \5 }
// Call IDispatch::Invoke()6 h$ P3 F# Z1 Q4 f: d) W0 [
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hr = m_pDisp->Invoke(, f0 ~3 m3 i, T) u
pokeID,4 Z3 p) }2 U2 } |1 t! \3 T
IID_NULL,1 J( k9 d7 P; N8 P- [
LOCALE_SYSTEM_DEFAULT,) k' S! r9 N7 |! z d" |/ J
DISPATCH_METHOD, 1 v1 b: S# b ]; w# T( [ &dp,1 y i6 y$ G$ m
NULL, " P6 O' O5 ]; p3 | &ei," i8 p2 M" Y$ s9 x
&uiErr);' U9 {5 m# ~% _; [$ ], F: M& D
, I! b. O2 w2 `- Z1 R; E% u
SysFreeString(topicStr);3 X3 N# i8 l. c4 h& h9 X1 S" u
SysFreeString(itemStr);# _, O) S0 E/ z* n$ C) G1 g f
SysFreeString(valueStr); & R, x7 k2 W# O/ H2 h; _6 j9 |7 g; y7 U: J3 o1 s0 V; i8 b
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??? 7 u2 B9 h9 S0 a6 s1 C- \& }+ K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???? & o* P5 t" w/ ~! S2 J; m4 F% u: l. R8 r4 g) i7 M6 l; o) a; p
, |# | U& b% Q; n/ T' Y2.这是request的程序 / I1 g, ~- `) k: }3 u3 ^0 [, o. G// Request a value from Extend * c& h/ ?$ L) E1 i# o// " v0 {: o$ _. v% y% C3 P5 R! L- _// Initialize the variant that will hold the BSTR. Set the variant's8 C3 ]- K5 F* S' c1 M
// type flag to indicate the fact that this variant holds a BSTR. Place the( h* s& Q. C# D$ z: T7 T$ I
// BSTR into the variant structure. 7 L& T- V" i9 k) y4 z/ P& d$ V8 U6 J& m) O; k( [7 C* X( A/ N
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 u! L1 \5 T5 j
: u7 { g; j' v0 z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- ?! ^5 j9 b# c. p
VariantInit(&requestVariant[0]); 3 q- J& b0 s9 D# y% v- v requestVariant[0].vt = VT_BSTR;/ ?% a" B* J9 G+ F( W P. t
requestVariant[0].bstrVal = itemStr; 0 ]8 }4 `/ F3 C 1 d r( J: e; F! X2 | topicStr = SysAllocString((WCHAR *) L"system"); * V5 j' C5 ~5 T$ c' r VariantInit(&requestVariant[1]); . i& _1 b3 n/ B E: B/ a5 x requestVariant[1].vt = VT_BSTR; ( B1 ]8 E/ s5 \8 W" p% x1 t requestVariant[1].bstrVal = topicStr;1 T$ d2 L% T5 d
& a: Z* o7 V% t X4 q
// Set the DISPPARAMS structure that holds the variant. 2 m; E+ a( Y! M( B ) N# T% k8 M6 J/ F dp2.rgvarg = requestVariant;1 V& G* ]5 y" C/ Q
dp2.cArgs = 2;6 K! C7 [) o+ c: }! O
dp2.rgdispidNamedArgs = NULL; 4 U8 @2 F! u( L1 m dp2.cNamedArgs = 0; / n6 Z. {! ^: A % [* i1 l ^# W2 L7 O5 D5 S var.vt = VT_EMPTY;6 j) e& V% ]- C F/ s! _' [" V
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// Call IDispatch::Invoke() ( s- J. B$ a+ p, a6 [$ \0 K2 h# W& G$ u9 ?
hr = m_pDisp->Invoke(8 G# {# J9 P1 H3 _% j
requestID,7 a. Q( I; K$ W. u
IID_NULL,. H \8 A( r- p6 c" w
LOCALE_SYSTEM_DEFAULT,) X2 L! C" C' C$ K' n* ?+ s, v: M
DISPATCH_METHOD,9 \$ q( N" ^+ ]. a8 e$ G# x
&dp2, 0 l8 M+ T, V6 o5 F# i &var, `5 c: Q) D6 b9 }, r2 i &ei,* L8 P6 \" ? g
&uiErr);' `4 P- X2 g) n+ @7 h) t9 Y