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:5 l. d W/ ~1 D
Name = (WCHAR *) L"Poke";" N& r) v: k/ F
7 m; p2 n+ \5 f3 d# E$ i' n+ v hr = m_pDisp->GetIDsOfNames () m0 _- @: K3 J; H! l- {: c2 o
IID_NULL, // reserved4 q: V7 a+ N# ?, [
&Name, // Array of names to get IDs for/ N6 [8 m( b/ L$ I) s
1, // # of names in the array8 R, t* c% M. k7 \( z P- I
LOCALE_SYSTEM_DEFAULT, // System locale; J! L# W- v* z/ g) M; Y8 `% m
&pokeID); // Array of IDs to fill on output4 z: c7 P p- a9 {. V0 j
8 `7 y+ m/ C. T8 }0 d# E+ S$ ^ if (hr) % {$ ]0 X( j% v1 m$ v* t { + a3 ]) w( n6 |/ q! p MessageBox ("Get Poke Unsuccessful");3 J J! G9 w1 f) F8 {
return;5 g; n1 V; a: R: {, b2 r. z! t) ~
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/**************************传递数据给extend**************************************/$ O B6 J5 x) v9 t6 ~( I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! A7 V) T! s- B# F
1 A5 Y W0 d- z/ m, j l# X6 n valueStr = SysAllocString((WCHAR *) L"1232");! ^' ~: a( } q8 r5 s( q
VariantInit(&pokeVariant[0]); ; q, I8 T" p2 Z3 b
pokeVariant[0].vt = VT_BSTR;6 |: d3 h2 P; U
pokeVariant[0].bstrVal = valueStr;5 Q" g2 M6 ~, R% f4 D6 i; M
7 j- g' [2 b* x j& M+ } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / Z6 s7 a) b' `& d: [3 s, F/ Q VariantInit(&pokeVariant[1]); $ x- j# U3 w: r0 k/ x" c- n
pokeVariant[1].vt = VT_BSTR; 6 H2 s5 @: K% C pokeVariant[1].bstrVal = itemStr; , {/ I4 `3 q/ Z! H; A/ y7 f2 @7 g/ E% M8 b
topicStr = SysAllocString((WCHAR *) L"system"); & N) ]0 ~, E. X7 g* ` VariantInit(&pokeVariant[2]); 9 O- g4 k+ Z) Z1 k
pokeVariant[2].vt = VT_BSTR;) n- K0 [* Y3 ]! X* d+ @2 M1 {
pokeVariant[2].bstrVal = topicStr;6 w/ D+ v1 r0 e
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// Set the DISPPARAMS structure that holds the variant.: \8 X, j! A& H+ B1 X
, ?" U* @* n* v1 W dp.rgvarg = pokeVariant;" p7 B6 b+ P* H6 L9 D9 m6 @& @' c6 s& y3 V
dp.cArgs = 3;, N- w+ N& y2 G. m' q! z X
dp.rgdispidNamedArgs = NULL; 0 H: C( [; P& i+ ?) j8 G0 V" j dp.cNamedArgs = 0;- z3 z* |: R1 o& e
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// Call IDispatch::Invoke()5 R* x+ m; q; Y& F+ I/ E h3 \/ ~' x
: r1 w2 I" y9 p/ i$ w hr = m_pDisp->Invoke(& q5 w/ S% U+ A& g8 ]
pokeID, / u/ A* t' K A# E IID_NULL, 6 w$ D4 B/ N$ p5 U$ a LOCALE_SYSTEM_DEFAULT,% ?2 V" M4 N7 f! S2 Q
DISPATCH_METHOD,1 R6 X. s. h$ B
&dp,. c4 j- K/ T' R/ c7 I/ ~' G
NULL,* n- u, ]& v1 V
&ei," D( r# m/ s/ X3 j; x, u
&uiErr); & @ Y5 Y. ~' ~: A) N6 X7 K/ w5 {0 F6 U& r! O$ w( p: p
SysFreeString(topicStr); . w" p# e6 h+ t% y h SysFreeString(itemStr);7 {. G: Y: C, f. `7 K& O: w, H
SysFreeString(valueStr);: W, j c' N& @! _: z& y; o% R& {
+ B3 j1 `' z5 V r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??? ! `. ]5 a ^! m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???? 7 a( F8 [/ w8 J- c" E( T3 N : M- n, h; C" x% h0 E. _1 n) j" h / d+ }7 ^! T' N2 |2 |2.这是request的程序 0 d0 G% y: j0 o0 w7 T0 F// Request a value from Extend 9 w$ n+ O9 R% A// 5 x5 R2 O% I g% w% o- \+ f// Initialize the variant that will hold the BSTR. Set the variant's. o- W q6 ]( V, q z( g9 S+ e+ ~( W n
// type flag to indicate the fact that this variant holds a BSTR. Place the , Q4 n- Y; ~ V" d// BSTR into the variant structure.. P$ m) K2 K) W& ?6 o
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 b0 d$ @+ E( ^8 C% H3 j! W ^ + @. b: x! M- H7 @# B y. z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) a# i9 H0 o W VariantInit(&requestVariant[0]); , }5 H" W4 ~4 I- a# P
requestVariant[0].vt = VT_BSTR; 5 S9 l) ^- w! Q! L requestVariant[0].bstrVal = itemStr;* t: @) `- y0 k v7 P7 r% i
% A0 c, n; P% {, C9 J( D topicStr = SysAllocString((WCHAR *) L"system");3 [" V" |0 A: j. u$ _2 Z7 ^; \% x( @
VariantInit(&requestVariant[1]); _5 S! l$ ~# P$ G S" O requestVariant[1].vt = VT_BSTR;& {6 f7 J+ K/ C* Q" \2 v5 Q
requestVariant[1].bstrVal = topicStr; 4 e) Y' v3 H' c. k+ w7 d ?- y' ?( x$ V; S y) S2 }. K
// Set the DISPPARAMS structure that holds the variant. # q- P. U( f0 k* @# z; f7 T% \8 D8 D( A( @1 Q' K
dp2.rgvarg = requestVariant;3 Y% M( G7 f/ {
dp2.cArgs = 2;$ D) \0 R K G; p3 p* B* ]# i
dp2.rgdispidNamedArgs = NULL;8 Z, G: J) e! C- @: T. P3 @
dp2.cNamedArgs = 0;# Y8 P, W% f! ] @2 H5 E/ S
( x6 I3 f; I2 `( f var.vt = VT_EMPTY;, _3 V: O6 a* ]1 i
# }4 U. W0 v# j// Call IDispatch::Invoke() 9 t1 d, p: z/ u5 N" m- e) l! J% t# Q
hr = m_pDisp->Invoke(5 p9 F* f' F5 N. u" }/ |
requestID, 5 u3 R h; f- }- W/ W IID_NULL,% D% M$ [5 E3 I( i5 {8 g
LOCALE_SYSTEM_DEFAULT,) u A2 S6 |) X P8 e% }) Y% b- _1 W
DISPATCH_METHOD, ' Q5 j& |9 C. V3 o) Z# e. Z5 z' u &dp2, - X: H4 E2 K* w) H2 G1 V i R2 B! N &var,9 F( x. l2 y# R! }
&ei,* C" g; a7 M; z& d
&uiErr);- N( _9 o& k9 X) l: }, ~
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SysFreeString(topicStr); 1 f7 m* S% r5 H& a$ F; E1 V; j0 { SysFreeString(itemStr);* d0 F1 b! N7 w9 A0 _& X
请问该程序是获得extend里面的哪个值?) d3 }5 X X& F! V( w
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????