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： 9 W/ C" R; `9 Z$ oName = (WCHAR *) L"Poke"; / Z; C* @+ F" ^1 X8 { ) z" `3 Y2 A; O- J) [+ H `
hr = m_pDisp->GetIDsOfNames ( 2 n8 t5 \4 w2 h# K/ b" x IID_NULL, // reserved % @* V7 [! p- D$ z8 @) o7 L1 b &Name, // Array of names to get IDs for ' O, Q4 B( Q0 f7 Y 1, // # of names in the array; l4 B( N$ M- j
LOCALE_SYSTEM_DEFAULT, // System locale $ ?+ `9 x# p5 S; V3 R7 N &pokeID); // Array of IDs to fill on output9 \+ x) [$ m% N/ S8 b
9 H: d0 x p, K if (hr) 6 Q' j/ A* _* `6 y {+ R2 y2 L3 M( Y$ K0 x
MessageBox ("Get Poke Unsuccessful");( @$ J! x! d) V% w
return;' V4 n/ F7 m E' a
}) D i* K0 Z- F1 J. U+ f( ?
& G/ ~: |2 h. W" {
/**************************传递数据给extend**************************************/. j! ^* M+ O5 ^3 y" y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, f1 m, g2 y- x+ b; R" R
3 `0 B8 {" M/ ?- i6 e/ Q2 Z3 } valueStr = SysAllocString((WCHAR *) L"1232"); 4 I3 |$ U+ M1 a2 ? VariantInit(&pokeVariant[0]); 5 C7 t1 I/ g0 Y3 G R- P8 `& v$ Y pokeVariant[0].vt = VT_BSTR;6 W# { f) H- G/ d
pokeVariant[0].bstrVal = valueStr; r2 N: m0 Q3 H' q. s & X/ D# h6 m3 _; F2 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" g6 ^7 F" @- T4 Y$ F& \
VariantInit(&pokeVariant[1]); ! q! z/ N% |- Q$ C pokeVariant[1].vt = VT_BSTR; ( o$ G/ x2 O( K* b7 v+ H4 e pokeVariant[1].bstrVal = itemStr; $ f2 M0 J2 M4 ~$ u/ r" D% U ! v0 ?& J6 ~$ | topicStr = SysAllocString((WCHAR *) L"system");+ C$ ? o+ t- d x& r
VariantInit(&pokeVariant[2]); 8 G0 F* B1 b) d* w7 i
pokeVariant[2].vt = VT_BSTR;( [1 d# V! m8 n0 l( \, O" N
pokeVariant[2].bstrVal = topicStr;% ?4 I; P3 X" A3 Q$ S& R
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// Set the DISPPARAMS structure that holds the variant. ! `3 P; R6 h7 a, u* ?$ j3 a4 p j+ H3 t9 ~% S9 k* F, l i( U% _
dp.rgvarg = pokeVariant; & _6 P7 p# k, }, ^9 z: v" i dp.cArgs = 3; 4 l- W; w2 i& ] ~5 a5 ?' ^( X' `0 e dp.rgdispidNamedArgs = NULL;* E4 T8 g3 g- L, z8 Q- N4 {8 h
dp.cNamedArgs = 0; C' ^$ S9 u" Q6 B7 Z& H
; p$ R' A0 w3 S8 ^' F# Y5 k @ ~, O// Call IDispatch::Invoke() & l, f" r4 g. {& Z0 U. P. i, d5 e1 l" v
hr = m_pDisp->Invoke( 5 K# o% v8 p. C3 e( R6 X) `# I pokeID, ' W2 f' P' P3 M! B1 M! S IID_NULL, 4 }% |* Q: g& G, ^ LOCALE_SYSTEM_DEFAULT,* v7 \8 e: x: C9 S
DISPATCH_METHOD," j3 W9 @( o0 H" R$ G
&dp," P0 J+ u2 V' L# N7 }0 K5 k
NULL,+ `* R. r. D5 }+ n3 i
&ei,% }, B" i) }% h1 g' U. \
&uiErr); . D' e( Z. Y* P0 G! u( s/ j9 N' H# K) z: [- R; B! z! Q
SysFreeString(topicStr);; ~" `3 E+ F! q! m
SysFreeString(itemStr);1 o% Q( d5 Q/ f- \6 {* c
SysFreeString(valueStr); $ y3 a8 O8 c1 T% ~7 k1 h- f; p0 d : w2 I% f8 j Y0 f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？？？ 8 U3 M0 J+ M$ f5 A* z6 }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 I6 T& }% r( _ / z9 [6 c3 F" Q0 \2 a % ^( s+ O6 y0 S/ M' U# Z, a2.这是request的程序 4 D% J( ^$ Y6 f% X// Request a value from Extend 6 y1 j8 d0 m; {% Z( G) e// . y! y7 K7 c5 h, ?! a$ G// Initialize the variant that will hold the BSTR. Set the variant's " L8 J; F- v4 M// type flag to indicate the fact that this variant holds a BSTR. Place the6 Q: |( c0 K. ~
// BSTR into the variant structure.: x# v- U+ M; D7 O
+ f Z- M* r7 D! ~& l0 G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - [6 Z4 o A! T6 b/ A0 B" ]" D ; d& ?0 o& L( a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* f: w/ {7 Z. s. W
VariantInit(&requestVariant[0]); + A. _$ M8 h) s$ c A% U7 M4 i requestVariant[0].vt = VT_BSTR; ; Q( C; `! B- b3 k2 a) T! F5 ? requestVariant[0].bstrVal = itemStr; 8 k' Q- k3 @$ _/ @2 z" e3 q( }2 Z0 I% [# _$ y
topicStr = SysAllocString((WCHAR *) L"system"); & u+ S* O( {# q d$ R% q VariantInit(&requestVariant[1]); ; y3 ?$ }1 M! U( H( f6 E
requestVariant[1].vt = VT_BSTR;+ m( p5 v+ Q3 h
requestVariant[1].bstrVal = topicStr;# A6 s% O; o3 \: ]
; b' e( ]+ h1 H' Q
// Set the DISPPARAMS structure that holds the variant. ) M4 M% x g X+ p, M5 J! Z [ 0 \- p' d m4 v, h& b$ I dp2.rgvarg = requestVariant;/ h S/ z2 A8 l' E: @( Z
dp2.cArgs = 2; Q( w$ F0 E4 t. x' E/ }) {
dp2.rgdispidNamedArgs = NULL;+ v9 J3 |: e9 E3 {
dp2.cNamedArgs = 0;0 g) f: y/ D* s' g. a: I9 h
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var.vt = VT_EMPTY; - B4 t4 ^& b1 m" p" v8 r1 ]3 t; q2 y2 t8 A
// Call IDispatch::Invoke()6 H' q$ o; `/ k9 a' q' m1 f) ~
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hr = m_pDisp->Invoke( " c: n- K, x( J) J$ | requestID," [4 r0 V N- L. W4 w b* X5 b. O
IID_NULL, " l! n0 B( Z, @4 {9 v8 J LOCALE_SYSTEM_DEFAULT, & `6 y8 Y' l1 z% x DISPATCH_METHOD, " [8 d9 F! ~. h% j &dp2, / D; u5 ?' J* b" \/ P &var,3 p) x" k% x3 q0 p$ i1 F9 n9 {* y
&ei,2 C3 G' `# j9 j1 ~ M
&uiErr); : l6 r% }# X% i5 D: j9 v& | 1 ?/ [" y+ `1 H SysFreeString(topicStr); , W1 C& c. c6 ]* ?/ R2 {4 @ SysFreeString(itemStr);1 ^5 X9 D2 m0 N
请问该程序是获得extend里面的哪个值？ . \- G4 o8 Z# \9 q2 I% Z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
