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: V7 q! j( b L" M! R' u
Name = (WCHAR *) L"Poke";6 {, ?- a6 p1 A
! H% D! u2 m% ]. W3 a6 s hr = m_pDisp->GetIDsOfNames ( 6 ?( l3 Z* h. p4 z" M7 j7 ^ IID_NULL, // reserved * w) M0 d' E$ a+ l &Name, // Array of names to get IDs for' K. X- L2 @7 ~8 z
1, // # of names in the array 6 D( j1 }) u2 H& v/ ~- d% v, s4 E, G LOCALE_SYSTEM_DEFAULT, // System locale 3 I8 Q1 L: c6 g) @ &pokeID); // Array of IDs to fill on output& W* B' h; p, e" \* E+ [
& P l% E7 T; _/ X% Z+ K/ O( Q if (hr) 1 o* N* n O% Z$ t { / R1 R |0 j! U. r- K1 @" P MessageBox ("Get Poke Unsuccessful"); ) Y9 C {0 s( F return; 7 |9 L& i' g2 u; g2 O! k; k } 7 r( S: }5 B: b4 g2 q3 \0 K% y$ ~
/**************************传递数据给extend**************************************/ , l% y, t/ O2 [4 d) y! J2 A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 ?1 E# Q1 {: Y- `. R - y) E) S6 c) R valueStr = SysAllocString((WCHAR *) L"1232"); 9 k" t& F- m. i: H0 N VariantInit(&pokeVariant[0]); 7 p+ ~6 g U' E
pokeVariant[0].vt = VT_BSTR; 3 ?% u, i9 k6 D: @ pokeVariant[0].bstrVal = valueStr;( F- W5 Q3 q' C
2 K9 T2 F7 |2 @9 h& }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 z2 g; m! P6 t% q# k$ G/ E
VariantInit(&pokeVariant[1]); ( P1 y2 ]9 ?' q3 H1 b0 I
pokeVariant[1].vt = VT_BSTR;: y- x6 _% |) a' p
pokeVariant[1].bstrVal = itemStr;, ~' h: N9 x4 ?
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topicStr = SysAllocString((WCHAR *) L"system");2 o6 z( N, z y2 W. J3 m4 L6 d9 K
VariantInit(&pokeVariant[2]); 5 U; r5 n! `5 M3 J
pokeVariant[2].vt = VT_BSTR; % a- v4 ^3 W, G Y$ f: I' `& p pokeVariant[2].bstrVal = topicStr;3 L# V* \5 K7 T8 s7 L8 m
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// Set the DISPPARAMS structure that holds the variant. , }% h- C* C" I- w- N % u5 X4 |) s4 V- U) }- b# W dp.rgvarg = pokeVariant;2 w; W( V0 M3 Z: v, h
dp.cArgs = 3;" N( C+ u: W! y' L
dp.rgdispidNamedArgs = NULL; % p n! ^* D, a) g dp.cNamedArgs = 0; 8 h) e- w+ m6 }. m ' ] Z! W! A3 u/ y5 K. g$ i// Call IDispatch::Invoke() ! y, |' f( ~8 [- a9 Z$ P" m; E' P0 K5 [1 g- W
hr = m_pDisp->Invoke( % n2 ^% _) J, n0 T o5 ? pokeID, k8 l+ ]& U- C2 D IID_NULL, + m( ]4 ~6 r- c; F LOCALE_SYSTEM_DEFAULT, 1 `) Z9 X& o9 ^/ m/ s( g' O DISPATCH_METHOD, 4 U& j7 L) `+ k) d &dp, 3 E+ q9 k, L* _- g2 n NULL,. L/ S: b" o2 ^; R5 _3 N
&ei, # n8 b+ y& x3 `; ` &uiErr); / L3 E8 `! C- I; E( }+ x+ O2 q. k! n, D2 X! \) I
SysFreeString(topicStr); $ R$ m D9 I! T9 r% o" }( f SysFreeString(itemStr);! m! t5 E" k6 w& q- }
SysFreeString(valueStr);( H( y/ ]' F2 P. z. E& 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???) ]! A5 N: v2 b4 G1 Z. Q
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???? }. A1 F" E6 @6 _% v9 k% S8 J + _( [0 f' r$ X5 e& p' X, h 3 {$ ?$ N- U2 \4 E- ^0 e+ I: E2.这是request的程序 - w4 C% W, e7 E+ J. j: v// Request a value from Extend7 ~. E3 y" X7 g/ O# S
// 5 K- n) P. K5 @5 F5 p% q// Initialize the variant that will hold the BSTR. Set the variant's ) A7 K k2 ^7 d# l* K# A4 f. p8 v4 g- n. e// type flag to indicate the fact that this variant holds a BSTR. Place the 5 j: p; M& ~' @0 Y" b& H// BSTR into the variant structure. & x# j# n" @& G- E* y # q) L) `6 ]! \' f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . x3 N; y4 a x. U8 X2 A . k% y5 e/ G; P- Y0 Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) W7 p( m4 F9 a3 q VariantInit(&requestVariant[0]); 1 s) h7 F" V8 S9 [6 d requestVariant[0].vt = VT_BSTR;6 b/ H" s' Z G8 X8 Q! X: \
requestVariant[0].bstrVal = itemStr;' C/ h6 M* a# ^, l! \" O
) e# b; h' O. j topicStr = SysAllocString((WCHAR *) L"system"); 6 ~ ]$ @. n, K' s2 W VariantInit(&requestVariant[1]); , }3 \4 z+ X2 E C6 A0 K requestVariant[1].vt = VT_BSTR; + a3 s* W/ [% m; g3 i* [ requestVariant[1].bstrVal = topicStr; 1 M$ Q. u N9 ]+ \( h5 u& X9 a! w8 D" P, z0 S6 T! v
// Set the DISPPARAMS structure that holds the variant. 0 L9 R, H& ^) b! C% \+ \ L5 y# s7 ?4 @3 E! U3 n
dp2.rgvarg = requestVariant;7 P0 r R. D: j7 v4 \ a; }
dp2.cArgs = 2; * A4 \( \- j# W! m' q5 c T4 Z, D dp2.rgdispidNamedArgs = NULL; 3 s( E5 n h* d! C: h: x! I dp2.cNamedArgs = 0; N) Y7 L1 c" h, n0 n8 S. x2 {; P. [1 f9 J% ?% V3 _
var.vt = VT_EMPTY; $ J& f; ?! g! V" E) k9 W1 E7 v) g2 \9 N' u1 K1 b$ L% P
// Call IDispatch::Invoke() V2 f+ i& J$ o* O. M2 R. _8 m. { " F$ X/ b/ G3 Q1 u hr = m_pDisp->Invoke(6 O7 k! o2 @" \) ^
requestID," h$ W$ E9 n2 b, g
IID_NULL, ) o7 P5 d w% h3 e: `; q) K LOCALE_SYSTEM_DEFAULT,6 T- k! Q* s2 J: a1 q
DISPATCH_METHOD, ]' A N+ D" u5 m
&dp2,; O3 P& v+ Q; X8 X
&var, ; Q- k5 V+ T% [' C4 b+ Q- ~7 o &ei, , j* w' I, Z/ g; y0 Y &uiErr); ( u, I2 z7 y# h& }7 @6 r4 J7 `9 C8 o+ Z |7 K9 k! N" }
SysFreeString(topicStr); ) F! v2 {; }: F7 V; m r SysFreeString(itemStr); 0 \# O4 _$ l6 e7 ^% p9 B( w0 @请问该程序是获得extend里面的哪个值? 2 I0 T5 A; a9 H0 }- K, }6 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????