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: 1 l1 ^* R2 U. X# @Name = (WCHAR *) L"Poke"; & f. @! P) O- m$ F3 L8 h/ u ' I( ~5 s' J5 C# E6 h hr = m_pDisp->GetIDsOfNames ( ( c. ^- l4 ]+ B h IID_NULL, // reserved0 a% v0 _; O) D4 d
&Name, // Array of names to get IDs for 0 [; R9 o8 \) W8 t5 E 1, // # of names in the array% w2 B- b7 i& P1 M
LOCALE_SYSTEM_DEFAULT, // System locale) m' `( H) \8 E/ o
&pokeID); // Array of IDs to fill on output- W) y) u- S# _% ?1 C* g* o+ U2 _
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if (hr) , o5 [& a+ p% K" [. B, W { y: V2 E# p7 U+ R' M MessageBox ("Get Poke Unsuccessful");/ S) Y2 M8 ?! r' Z/ c( \
return; ! p2 n. G( J4 m* u: |# v$ {. G }- {( k- v/ \. k. |9 @
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/**************************传递数据给extend**************************************/ ' i. e: b9 @! ?3 ?- G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & n% ~& z) }6 i+ N0 t6 R / |! W. a- _* j
valueStr = SysAllocString((WCHAR *) L"1232"); 7 T6 h9 a' O, l8 d e7 n, ` VariantInit(&pokeVariant[0]); , b. x! @& p6 a0 {; G pokeVariant[0].vt = VT_BSTR;& v4 D/ y( s+ R6 I' z7 a
pokeVariant[0].bstrVal = valueStr; . D1 H0 N# G7 U & g9 L z; d. V3 x' ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - o1 C$ S8 d" \6 d VariantInit(&pokeVariant[1]); & h1 u1 I; z' r, f# Y9 e
pokeVariant[1].vt = VT_BSTR; . e* k- p' }3 t1 {4 w0 G& y" d pokeVariant[1].bstrVal = itemStr; : n, J0 Q. y: d! H5 f: h' {7 f: G' e2 |- _, u% a
topicStr = SysAllocString((WCHAR *) L"system"); z' _" i; \# ]
VariantInit(&pokeVariant[2]); . ]! S/ W+ J8 X* }. J8 L& u$ s
pokeVariant[2].vt = VT_BSTR;; A! H' D1 s3 n8 e' I$ O
pokeVariant[2].bstrVal = topicStr;$ U: J3 n. R/ M5 Q: \4 F
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// Set the DISPPARAMS structure that holds the variant.9 _% |) Z5 `8 `* A0 C$ P1 b1 T# k
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dp.rgvarg = pokeVariant;+ b1 Y2 j' I; V' Q+ W8 U& z
dp.cArgs = 3; 8 O. o: a* w& u1 [. ?# S dp.rgdispidNamedArgs = NULL; - T6 f" U# d# X3 k8 r9 C dp.cNamedArgs = 0; 0 L6 B$ W1 k7 P9 b- H- z , m1 a( {* P6 l" U* w, a l$ x# T- S; _// Call IDispatch::Invoke() ) o- p) T! l: J) N + b; E" k* r e) z( e4 P hr = m_pDisp->Invoke() Y% h! c$ R7 P4 W
pokeID, 1 A8 I5 ]# l' Z7 Z+ ~ IID_NULL, " m* D4 Q) [( m7 j% d; A7 c3 Y LOCALE_SYSTEM_DEFAULT, % v4 f# R3 j! \7 }1 u3 g `/ G0 Q DISPATCH_METHOD, $ M5 G. E4 X9 N ` &dp,/ V) F/ U0 u* l3 P( V; `% _
NULL,0 Q. q8 f& a. ]+ R# l% r/ W# t
&ei,0 z; ~5 _, p- r, ]6 q1 {# I
&uiErr); ; L: i4 P7 Q: J' y* u) M- y( a/ U& s& M( i9 M3 w) N8 M
SysFreeString(topicStr); 8 F6 t6 |) {2 m' Z- }2 g2 R& q SysFreeString(itemStr); ! [# w2 T2 g) t' ~1 @! E5 a SysFreeString(valueStr); % G/ \2 [8 l' m8 @9 e) l' d% U! w2 M, L
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???3 \ N2 w* f5 J+ L2 c
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????5 Z i1 p; `6 c: U
2 T$ t$ c, C! p3 M6 ^ 8 t; L$ T3 `; \9 G2.这是request的程序 - E2 _( g2 U, I// Request a value from Extend ; l9 F( A& a* r+ V& v( U//+ i' n/ V+ u) D7 I
// Initialize the variant that will hold the BSTR. Set the variant's; Y4 ^% `/ ]$ M8 o E
// type flag to indicate the fact that this variant holds a BSTR. Place the / E. t# i8 E* ?" r# `$ |; p// BSTR into the variant structure.2 e4 G5 S8 @. q1 b& X
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% @( y* \ C- j/ n! o; r1 [6 {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 z3 A9 o" b2 L) {; J VariantInit(&requestVariant[0]); ( p. C9 v' ] g# s' z, b: |! I
requestVariant[0].vt = VT_BSTR; ' D/ x* e5 x4 z: K# Y4 s& g requestVariant[0].bstrVal = itemStr; 1 ]6 E. ] k& `5 k8 w5 E ( p1 U5 [0 X/ \' g topicStr = SysAllocString((WCHAR *) L"system");5 C. E8 x ^/ q+ H
VariantInit(&requestVariant[1]); 8 V- S6 K9 G2 y6 l requestVariant[1].vt = VT_BSTR; 1 n7 h1 b' m% r) a7 k; @; n+ O requestVariant[1].bstrVal = topicStr;% Q( U& { T0 X6 b7 m9 X7 s
7 V) D, r/ ~+ n4 X// Set the DISPPARAMS structure that holds the variant.) [ C2 G: C8 F- C6 X4 y
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dp2.rgvarg = requestVariant;7 n+ n; g" q3 u. W( E6 P& J
dp2.cArgs = 2; 3 L a6 g2 L! N9 `6 b, ^ dp2.rgdispidNamedArgs = NULL;; U% U! Q$ d2 t& z3 k* f6 r
dp2.cNamedArgs = 0; / J8 X6 t7 U1 W# L1 E1 U8 v2 q3 `+ B# o h# C# `6 D
var.vt = VT_EMPTY;1 k% m8 |8 U0 F r. t% i
6 b' h; n6 j$ {$ J, A2 Q// Call IDispatch::Invoke()0 x* i. f' N2 a0 q6 O. |
/ X2 a$ ^8 {2 E, ]- Z2 M hr = m_pDisp->Invoke( : h I* m" d5 r. _- i( v5 U" ~ requestID,, p# ] o8 l" s% B# Y: p3 L9 z
IID_NULL, & s7 e0 X3 L+ p; ~3 d& Y- g LOCALE_SYSTEM_DEFAULT, 7 y1 V1 ^' Y' D! L9 ]0 _ DISPATCH_METHOD, . }7 T: d7 r7 ?6 f &dp2, : }& B( c: P$ u/ F4 ^' _ &var, - ~6 z8 f4 G6 r& I &ei, & b- J+ p& U; M. n3 e' V* \9 b% n &uiErr);7 ]4 }! B4 e4 ?
- a+ F9 g) @( F; r$ P SysFreeString(topicStr);" u+ P: Z' H6 y1 s C
SysFreeString(itemStr);! c7 Z+ ^* f9 h1 _( J$ B; J. Z& _$ n4 W
请问该程序是获得extend里面的哪个值?3 x, ^9 \: ]. z- ]0 T% l
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????