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 O: Z' \; j8 T& v2 C) G
Name = (WCHAR *) L"Poke"; ; v3 l( p% a: X. j8 }% V : U4 s9 @& b9 A3 d
hr = m_pDisp->GetIDsOfNames (8 c% k% x! u4 O: K& B% `
IID_NULL, // reserved - [4 A$ N9 B: X &Name, // Array of names to get IDs for / ]/ b& W' T) i% k8 j! ~ 1, // # of names in the array+ _8 p1 }* }6 J4 y
LOCALE_SYSTEM_DEFAULT, // System locale$ F0 X- n1 n9 m; p/ V8 k/ ~
&pokeID); // Array of IDs to fill on output + N/ G& ~' u d( T , ~1 k8 X, P5 t7 G if (hr)1 r0 C+ O) l m3 O" D+ {
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MessageBox ("Get Poke Unsuccessful"); 4 A- e# p- m+ v& T2 G6 q* a7 f return; 9 a& b$ h$ G/ {& |" j }; i3 p, O4 M; m$ y" k
( {; q: h0 N4 s4 _4 i* x' K/**************************传递数据给extend**************************************/7 k+ J' _5 J6 M. v2 U0 y: r T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 Z, q8 Y ^' z# h2 R
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valueStr = SysAllocString((WCHAR *) L"1232"); 4 c( s$ ~( W( ^: m VariantInit(&pokeVariant[0]); . E# j6 K. i. S4 T! Q4 }5 k pokeVariant[0].vt = VT_BSTR;6 | F, @& k( v' {. M/ S9 L' M
pokeVariant[0].bstrVal = valueStr;& N8 Q6 |, o5 Q( V* K
( _# d' |( Z$ k3 J, g/ z1 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); T+ A! a' X& m
VariantInit(&pokeVariant[1]); % _2 Q. I) @+ k! i Z
pokeVariant[1].vt = VT_BSTR; p8 M, L8 J9 O8 g4 u" x
pokeVariant[1].bstrVal = itemStr;+ d9 `/ s0 \ l) [
) J T# q, C9 C+ {6 X1 O topicStr = SysAllocString((WCHAR *) L"system"); # {# E5 D+ y" v% @ VariantInit(&pokeVariant[2]); ) i; G- I5 e# E pokeVariant[2].vt = VT_BSTR;, ^) I3 z* K" K }/ X
pokeVariant[2].bstrVal = topicStr;/ _; l& J u/ Q
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// Set the DISPPARAMS structure that holds the variant.; V: h5 u7 H) z1 y
1 N: {2 a9 K% f0 @. d1 b$ W* I dp.rgvarg = pokeVariant;4 b; V. n3 i" I. i2 m. Y- P0 X
dp.cArgs = 3; / C+ t- t6 [& @& t9 F. w5 \8 _ dp.rgdispidNamedArgs = NULL;7 n" a3 _+ U% E$ M1 r0 A
dp.cNamedArgs = 0;! S. d8 O% @4 n* w& s! n$ v: t8 a
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// Call IDispatch::Invoke()' u0 `! | c8 ~. j( f: m3 Q
; f7 y( P6 _- ]. C8 b9 l& g hr = m_pDisp->Invoke( 9 P0 X: s3 a7 f5 N pokeID, . [1 j/ J" T8 P) m IID_NULL,/ o9 ?4 r. B7 j3 |
LOCALE_SYSTEM_DEFAULT, : O W5 C. f( F! w. M$ C; e: ^; n DISPATCH_METHOD, 2 D4 O, x' J/ j2 ~ &dp,: R+ s0 g, A1 d6 l
NULL,3 n( P- X" r! \
&ei, 2 g7 G% n0 n4 n3 T/ z4 n! J &uiErr);* ~0 c2 _% _" j6 Q/ b: d; K6 K
+ o1 }' ^3 j7 G3 h* C SysFreeString(topicStr); # k* `& b, N$ Q SysFreeString(itemStr);: \# v) g) c6 I
SysFreeString(valueStr);* A$ n) H p- {2 f; ?
; U( S9 X$ Y- ^* b) a: {' d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???& q7 N# b0 |* |* {
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???? + E( ^0 ~6 ?6 a2 M m& I$ e( ?( k D4 G
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2.这是request的程序2 U; n( _& {! `+ k
// Request a value from Extend / O& ~$ [* I, Q//0 Q6 _% I/ U1 L
// Initialize the variant that will hold the BSTR. Set the variant's 2 |4 a1 K7 K' d7 w2 j+ L// type flag to indicate the fact that this variant holds a BSTR. Place the ) F0 c8 { T P3 O: ?7 D* i// BSTR into the variant structure. 0 D- a! `- ~! y% a- I: H7 A. S9 ^7 o& t5 H
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' ^4 E c. p, a; D; x9 @
: M( |; \* m5 v+ m0 E7 `: J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" @. O7 C4 S, j* h2 B
VariantInit(&requestVariant[0]); $ Z/ M' I0 O: ` s
requestVariant[0].vt = VT_BSTR;$ c4 [# W; Q, @2 J4 _& r3 O5 L
requestVariant[0].bstrVal = itemStr; - V1 R; Q- |; L6 }# _/ Y6 N% V( I. Q9 o8 g8 L5 l5 ~$ Y
topicStr = SysAllocString((WCHAR *) L"system");( L) B, h0 a3 O: J
VariantInit(&requestVariant[1]); ' ~" v: V2 M' y$ i6 P requestVariant[1].vt = VT_BSTR; ! |4 f8 }4 i2 Q$ D; R/ O' g/ D5 A requestVariant[1].bstrVal = topicStr;( Z f5 z: P$ }0 j P
: c9 j/ |# W+ m6 t0 H$ A8 Z// Set the DISPPARAMS structure that holds the variant. 0 o' ^# ? S7 Q- R2 {% t / q0 W' z6 z; ?, Q8 f1 L8 ` dp2.rgvarg = requestVariant; ' H( ^+ t1 u+ ]. c- d5 [8 i dp2.cArgs = 2; 7 D& v+ p( f1 n dp2.rgdispidNamedArgs = NULL;2 a& e( j2 K$ h! O" X4 I4 b
dp2.cNamedArgs = 0;- j' C* s- R7 X- ]
2 b# u# T: t2 n8 d7 ? var.vt = VT_EMPTY; W Y+ S$ b1 Y7 n& @# v. F1 r7 w# t2 x
// Call IDispatch::Invoke() 4 N/ p+ v0 B. ]) U& X 3 ~3 z6 d: H( i. J! K& b8 _ hr = m_pDisp->Invoke(5 G" X9 I1 u0 o
requestID, ! {, H$ X9 N7 B/ B u IID_NULL, 1 e/ C& [4 o1 Q3 ^ LOCALE_SYSTEM_DEFAULT,2 x) X! F" X) x4 u) L
DISPATCH_METHOD, ) F6 Z4 F( j( o# \ &dp2, 0 Y0 ^/ d5 R$ |- D. A+ y &var,+ F6 N6 i3 P; w8 M2 u1 g' Q
&ei,- M' x" e! K9 H$ ~" U' u
&uiErr); 6 d& @1 F# V( k , F! q, Z% T9 V: H SysFreeString(topicStr);' h/ S- {8 j# ^, N1 F
SysFreeString(itemStr);* z( F! ]5 ?% S
请问该程序是获得extend里面的哪个值? " u6 s- d! W+ Q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????