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:8 ~5 M5 P$ b3 y9 v
Name = (WCHAR *) L"Poke"; ) b0 X/ O: o) I- o* j 7 r/ `6 B, L2 ^/ k/ z- A3 x
hr = m_pDisp->GetIDsOfNames ( " Q+ {7 D1 u) C; V! c+ |2 W4 E IID_NULL, // reserved 4 D/ y; J7 t5 B &Name, // Array of names to get IDs for$ R5 D+ f2 t% f$ b
1, // # of names in the array7 D2 V' Z; n2 e7 ]& G8 q( `
LOCALE_SYSTEM_DEFAULT, // System locale# j$ R& k. T" e" \2 B& n9 m
&pokeID); // Array of IDs to fill on output ( ]4 I8 R/ g9 Q6 N6 y% w( w1 } 6 z* R# G5 P: r- J* O if (hr) + }$ U2 d" k# [ P5 t4 V: G1 F/ F { 5 q0 p+ d9 l/ \5 L MessageBox ("Get Poke Unsuccessful");: s! q; a! B; L% ]9 V2 v4 Q
return; $ }6 Y! a+ x% y c2 ?, i! G$ J } % m4 k3 e" l) J, [' Q3 N 8 w2 U$ U' v2 J k( k7 H/**************************传递数据给extend**************************************/; j* n! M2 k1 W) R8 T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * O' P3 o1 \* {6 W! @ ; {1 ~9 I0 g1 b5 H( Q4 `
valueStr = SysAllocString((WCHAR *) L"1232");1 N. k5 j+ ?% q/ X
VariantInit(&pokeVariant[0]); 7 |+ I" _4 A/ V; ~2 V; }8 S
pokeVariant[0].vt = VT_BSTR; , b+ { f: J2 P1 Z X pokeVariant[0].bstrVal = valueStr; 1 O* x Y* _) Q& c4 n- R + P( H0 a5 e8 d% L _; O" [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 N& |/ ?: y4 i: t1 m VariantInit(&pokeVariant[1]); " K" m2 z+ z2 ^8 c* F6 D! q pokeVariant[1].vt = VT_BSTR;" ]/ D/ y) A# |( q1 K
pokeVariant[1].bstrVal = itemStr;! \- s$ C0 L- n1 A! _
! j' A; B2 a; ^9 P( o, y- J) H, D topicStr = SysAllocString((WCHAR *) L"system"); 8 A& t0 y3 i- @: [ VariantInit(&pokeVariant[2]); 7 [% X4 q9 L: D
pokeVariant[2].vt = VT_BSTR; % d. x9 B8 H- A+ a2 T) P1 I! | pokeVariant[2].bstrVal = topicStr;# B. _: v0 a8 c8 u) [6 o* x; r
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// Set the DISPPARAMS structure that holds the variant.- |9 }( s4 w% Y& [& n
1 Y5 D d' }* P dp.rgvarg = pokeVariant;' X8 }5 c) `& m" y! y0 v; `( I
dp.cArgs = 3; ! n I" ?- E/ E2 A% |4 A dp.rgdispidNamedArgs = NULL; 8 x$ v- f8 h. {2 U0 E dp.cNamedArgs = 0;# t1 |( P' G8 ~9 D2 j, Z# |9 C
1 [# C4 D% B- \. j. E& W// Call IDispatch::Invoke() 3 K, c- o% Q6 L+ j' v, N% t; t - e! _2 G5 J0 a hr = m_pDisp->Invoke(+ g4 f3 D' E0 F9 Q: f; Z
pokeID, 6 I9 W1 f6 ]; f0 s4 O# C IID_NULL, 3 A0 h, E' U3 s5 F, O7 Y) ? LOCALE_SYSTEM_DEFAULT, $ J& ^# P, r" Q- ] e DISPATCH_METHOD, - o) ~* ?! y. I- K1 l &dp, + o) g. D4 S/ j3 A" D( v NULL, g. K" i) T2 F# r &ei,# t, S5 W( \. a( {: j, D
&uiErr);; Q% a1 C' o; A* C" x$ L
9 Z6 o* s! m$ L3 P SysFreeString(topicStr);: O5 F: ]7 l- u
SysFreeString(itemStr);( b& ~# k: e8 _8 x
SysFreeString(valueStr); $ _9 R0 _# P I+ ~9 ]2 \1 `3 H+ X! T8 I P; A j( N; N
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???- X3 c; R$ e. @4 s8 D
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???? , N Y9 N' H( d9 R9 e7 h2 { 8 W5 \& Y" p& ~4 ?2 M7 V# j8 u8 j [! k4 R
2.这是request的程序 ~6 t1 F! m3 _// Request a value from Extend& p. V$ \" \% b" s+ N
// 2 J) |5 s7 }, m) y/ X// Initialize the variant that will hold the BSTR. Set the variant's . h! U& Q$ g( X3 v4 K, s// type flag to indicate the fact that this variant holds a BSTR. Place the 5 O# P6 r- a8 c6 [, y+ v3 J// BSTR into the variant structure. ' }. C% w8 U, f7 R/ i7 H6 j# |7 t. ~" d1 ]
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) r- r) Z% m5 k
* A S+ }0 m+ |0 c% _ N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- p% h% d6 O5 g5 D, Z
VariantInit(&requestVariant[0]); 1 E. X7 h9 f1 ^; U8 ^ requestVariant[0].vt = VT_BSTR;8 J" h! [8 g3 X }! }
requestVariant[0].bstrVal = itemStr;+ _; w* |; n3 I3 v2 E" M. U" F
7 J2 j( I( Y/ C
topicStr = SysAllocString((WCHAR *) L"system"); - M6 _" P7 ~; c4 I* g VariantInit(&requestVariant[1]); 9 c6 P! i* H" Y6 G2 Z* }: `
requestVariant[1].vt = VT_BSTR;: J7 w1 }4 _) `# M/ p4 G; Q) q
requestVariant[1].bstrVal = topicStr;/ Y" ]2 a; k- @4 S2 q7 @* h* d; y* e
% ]! e: e) [' L/ f
// Set the DISPPARAMS structure that holds the variant.$ ^, p6 W ^5 i% S/ x/ Z" x
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dp2.rgvarg = requestVariant; # @9 |- m$ M# X4 V1 H8 Y: m dp2.cArgs = 2;+ n+ C3 v) g% o, s
dp2.rgdispidNamedArgs = NULL;( a1 p+ t* S( I2 G
dp2.cNamedArgs = 0; 8 l- L4 J; `% z& N5 @( G! ?( v1 K# F- s8 B! K6 q/ J5 A
var.vt = VT_EMPTY;% l& D- E0 I4 \8 }, Q4 @* y+ ?
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// Call IDispatch::Invoke(): q: V$ N3 q+ |- N, s+ ?
' I% J+ X" N' D% S9 @0 W hr = m_pDisp->Invoke(: _6 o2 j6 i/ Q' k& [ U; }
requestID, 7 p$ g# Q5 ?9 E' F IID_NULL, + d0 w% Y/ `, X7 b% s LOCALE_SYSTEM_DEFAULT,+ F7 }2 w8 r2 y" ~4 z$ {" ~) g
DISPATCH_METHOD,3 j# P2 T) B1 C
&dp2, H# J, [2 y8 N- l5 z+ R &var,% i. }' T" F9 [4 M
&ei,( B H" U2 }# r1 j3 m3 R1 {3 y
&uiErr); - P" S- I7 e+ s0 a- @9 P. F% X) |3 t9 T
SysFreeString(topicStr);' V- o; h3 u5 p8 v- [" R/ u: B
SysFreeString(itemStr);/ A% y% ^; f' ]
请问该程序是获得extend里面的哪个值? 8 C+ ]$ Z1 q5 C- V/ v; i7 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????