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：$ r# G/ c, Q/ Y6 k
Name = (WCHAR *) L"Poke";5 T) Z6 Z i: s" P6 _8 {
( F* z& ^" ]& x( J: r" n hr = m_pDisp->GetIDsOfNames (- c: D% i4 V* z& G' v# e. O0 v
IID_NULL, // reserved Q3 J5 T1 ~/ k7 m &Name, // Array of names to get IDs for - H+ {2 y5 y: A' l h# M0 x) ~9 H 1, // # of names in the array ( K) s" l |. ~( v. ~: i8 v7 {. w LOCALE_SYSTEM_DEFAULT, // System locale 4 v( I1 D5 h9 o% w1 ~0 ` &pokeID); // Array of IDs to fill on output9 ?5 j5 @- q) Y# _7 k) g+ `
" I0 z* k, g! X c, C1 A if (hr) / m7 M3 H6 z6 v% y: E {' h3 i9 V+ z8 u K, n7 ?) ], v
MessageBox ("Get Poke Unsuccessful");4 i" I; I8 j9 k* O
return; 1 [7 R) m9 P5 Z& k& |" \- v } ' p0 j+ }, ~5 v" {0 T$ R5 R 6 M1 v5 v2 q* {. o/**************************传递数据给extend**************************************/ / b [8 J) E9 O: W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% }) F; W+ G: b$ a
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valueStr = SysAllocString((WCHAR *) L"1232");' x. Q: r1 D7 J* _% l
VariantInit(&pokeVariant[0]); 6 ^& b! I' [. m0 k2 I: H pokeVariant[0].vt = VT_BSTR;( h1 v: v8 h( G
pokeVariant[0].bstrVal = valueStr; & f5 I* I* f5 q8 u9 m- U# L5 y3 ]: M3 J, [; S0 N, H0 Z# V+ n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! o2 u7 E2 a' y VariantInit(&pokeVariant[1]); - X' M' [. [5 Y pokeVariant[1].vt = VT_BSTR; ' @4 @) z8 A9 n% y$ F1 G$ u3 a" ^1 {+ D pokeVariant[1].bstrVal = itemStr; 8 P9 \$ j9 Q. ~ y1 d7 [' o: R7 r) n9 t' k" f7 Q: l
topicStr = SysAllocString((WCHAR *) L"system"); Y6 b" d8 R; J2 W- d% A9 t; Q3 B% `% o
VariantInit(&pokeVariant[2]); ( n6 Y. t. T# ~ n$ Q5 ?
pokeVariant[2].vt = VT_BSTR; ' d+ F; p' F% B% ^7 M0 | pokeVariant[2].bstrVal = topicStr; : |5 K: _0 N# l$ p % p' \1 A- P7 X8 s// Set the DISPPARAMS structure that holds the variant. + ~+ G. @; y+ a7 t) h2 O # n6 \9 z: p% { F dp.rgvarg = pokeVariant;( C3 F; d S# R6 ^
dp.cArgs = 3;& r6 |) i" K, @ X5 j! h$ O0 m' B
dp.rgdispidNamedArgs = NULL; 0 M, v7 Q: W' ], Y* \# A2 d _ dp.cNamedArgs = 0;6 `+ \+ H+ w5 d8 F0 h9 `
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// Call IDispatch::Invoke()& L, a, I, J1 g) O' D3 N9 O5 T
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hr = m_pDisp->Invoke( 1 ]) j& k5 n! v0 P5 W0 V pokeID, ) |$ F5 T6 p( L% [+ \7 j3 n+ l. k IID_NULL, $ s/ F. F- m; ?: A* y7 b3 a% l LOCALE_SYSTEM_DEFAULT,) J$ a4 W: k8 W# a# G8 y; s" g
DISPATCH_METHOD, 0 q3 F' `+ N& D# ~+ ~2 u7 p& C &dp, : `9 ^" r4 @) k7 M. l! l0 q NULL, 1 ]6 {. {# `3 G8 ~/ v( F' E &ei,/ c( v9 g- |' w+ C
&uiErr); : f {( Q: ?( c3 [! D: y- R* _" [7 a* p: _) K E
SysFreeString(topicStr); , R3 H* z+ d! H' w7 S2 U SysFreeString(itemStr);! v5 V1 h2 ]" R$ M) C
SysFreeString(valueStr); * A) P9 r9 E8 b) M& b _# \( Y2 Q7 y2 i' s! G) `. x' i
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？？？ 1 {& D3 W! F$ r; M; t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？？？？ * V/ g; ]3 _9 Q# H " O% ?! @; X2 Y6 A5 Z% [) ~2 ^/ y" h o
2.这是request的程序$ F8 K2 J5 C: |$ c
// Request a value from Extend + x4 e# w* r: n+ t0 r//9 B+ u8 y* C, L z" z" |# m
// Initialize the variant that will hold the BSTR. Set the variant's/ I: d# D" V2 T: o, }
// type flag to indicate the fact that this variant holds a BSTR. Place the( l/ f- @" e7 s- C1 I
// BSTR into the variant structure.. A" {& {7 d/ ?/ A
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 g# e5 B$ A9 { 9 p+ f$ T, N0 C" L, d6 L% k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 r' ]' i' [$ ] h" g8 e
VariantInit(&requestVariant[0]); 6 h& n/ A- V) B) f+ F J# ?2 E& ? requestVariant[0].vt = VT_BSTR; 5 y; _- V Y2 C" y* o requestVariant[0].bstrVal = itemStr; d# R" e( m) G1 |6 |
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topicStr = SysAllocString((WCHAR *) L"system"); c" A) Q1 \; @# F/ S
VariantInit(&requestVariant[1]); l3 c' F5 O' C. U# O$ X+ d8 w
requestVariant[1].vt = VT_BSTR; 7 j, V( R( x9 a& m( F/ ]5 n4 ` requestVariant[1].bstrVal = topicStr;; L* H& U; r& o* J# W7 _- R
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// Set the DISPPARAMS structure that holds the variant.) t# X% t$ ?, J9 s5 H5 G+ V
$ s$ V+ O) M- C$ [
dp2.rgvarg = requestVariant; & j; D7 `' F- ]/ A+ [; y7 G0 m) a5 Z dp2.cArgs = 2; w, T" y4 p: s& C dp2.rgdispidNamedArgs = NULL;' E+ m7 t/ ]" P1 \3 d6 H& H# w0 g
dp2.cNamedArgs = 0; 3 y3 o# z5 `9 b; W: w5 ]" G3 v, [8 V- b/ |
var.vt = VT_EMPTY; % O/ H5 B6 r1 G' ]8 `) K & T( S9 }' A: _& h// Call IDispatch::Invoke()3 ~7 h" D% C3 {+ w; E ^( ~4 }
" q9 c2 e5 k9 _( C0 g hr = m_pDisp->Invoke( " X3 l- J3 r C+ ?" ?# |7 L requestID, 9 v# ]5 S; M0 M% C+ J IID_NULL,: A, t3 }, W: @ L: E( O' ?7 N4 X* i
LOCALE_SYSTEM_DEFAULT, ( i* X* g( {9 `5 H: ] DISPATCH_METHOD, }2 D k* {( B9 a &dp2, 6 j+ j% z9 J I. m) w. a &var,! ~% u7 a; m+ p3 B+ d5 {# b6 z
&ei,8 d; |$ `! d' s" l' p) E B
&uiErr);+ Z( g. T" b: i! s
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SysFreeString(topicStr); . |- \! A& `: x( y SysFreeString(itemStr); ! O/ i! g; N; h请问该程序是获得extend里面的哪个值？ # _ ~: I" I }" A8 G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？？？？
发表于 2008-11-25 19:37:03
