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：7 t2 A8 ]' q' J Z$ d
Name = (WCHAR *) L"Poke"; 6 w4 k! \, {* n, o8 V7 W) o) I% H 2 o. a, Z* [6 e6 Y- l3 X7 o
hr = m_pDisp->GetIDsOfNames ( ; F ?' r" P# a+ {8 E0 a; V. S IID_NULL, // reserved Z. [5 ~0 I% N &Name, // Array of names to get IDs for ) l' `. [1 N6 }7 w( D, R# V 1, // # of names in the array 7 L: P7 f' z* ]9 A) B! x- _ LOCALE_SYSTEM_DEFAULT, // System locale4 |! y3 y2 `8 W3 k/ U- A) i1 Q
&pokeID); // Array of IDs to fill on output( B+ ]4 j& B& n+ ~! z
* N5 e, ^* c" B, @ if (hr) , G* k J* I( ? {5 i; `! R4 j" p, Q q$ Z
MessageBox ("Get Poke Unsuccessful");" a% y5 I+ H6 ?. h; ?: P
return;# b) B- P$ ]# z0 p# L. R, L5 C
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/**************************传递数据给extend**************************************/ 1 }& A2 l! J) W0 C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- _, q1 U3 x/ M. Q% S
+ Y6 r3 ]" l( h8 |' U4 Q) Z. G+ H valueStr = SysAllocString((WCHAR *) L"1232"); 7 s$ ]) f: V& k; r4 [0 v VariantInit(&pokeVariant[0]); / l8 X3 D5 p( p; q9 I: s& U7 P
pokeVariant[0].vt = VT_BSTR; y" j- \( ^" Q. z2 [/ a pokeVariant[0].bstrVal = valueStr;; a. h( s' ^! S$ m& D5 n2 \; c
/ ^# V5 D5 E: Y# P" F7 h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 C& e, n/ N. G" {
VariantInit(&pokeVariant[1]); 6 T. `# i2 ?1 ]3 f# Y
pokeVariant[1].vt = VT_BSTR; 4 [5 V1 M1 U/ w! n0 \0 I+ X pokeVariant[1].bstrVal = itemStr;9 i( R. E$ u3 _) M# Q0 n+ j
. b$ q) O4 v: v/ F+ R topicStr = SysAllocString((WCHAR *) L"system");* l4 a7 k' l0 F) c+ T; T$ M h
VariantInit(&pokeVariant[2]); 1 t" p# s5 U+ D' F3 b( y
pokeVariant[2].vt = VT_BSTR;6 c- o n( r2 Z# v3 j
pokeVariant[2].bstrVal = topicStr; # j" Q* |; a8 @ # ]: b) m- E8 Q! g4 x// Set the DISPPARAMS structure that holds the variant.: E6 ?8 Z6 R' {) y; S' h( \ e
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dp.rgvarg = pokeVariant; & U. k6 @8 `( j7 U6 {+ O2 R. v( ] dp.cArgs = 3;3 u8 F- N% P) N" C+ F' X
dp.rgdispidNamedArgs = NULL; 0 [( I) W( L2 S dp.cNamedArgs = 0; 5 b& s# X& y* ~) p- C! b) n0 T* w5 S/ C3 P+ E5 P! o" M+ C: p
// Call IDispatch::Invoke() / D+ {3 Y9 G( h5 [& f * N4 p c; V' Z: m: y. a hr = m_pDisp->Invoke(9 B' K& h, g. p& j8 B; J
pokeID, R% m# K2 n \0 e. ?+ c" j IID_NULL,5 _0 U. k& a" G1 S$ |
LOCALE_SYSTEM_DEFAULT, ( ]! {! k* [" `" @ DISPATCH_METHOD, 9 K! k( e6 X6 `" Q; l0 t3 r2 e &dp,2 j! ~# G1 b: O: ~$ G! O
NULL, * l0 y" E5 W, f; u &ei, ; ~7 |! L3 a9 `+ y+ l$ ~- U &uiErr); * W+ b9 }; j- j9 |" e1 T0 n ! J& Y9 K. G8 O" S5 C8 i SysFreeString(topicStr);: X) x# a$ a9 w9 q4 N! p) c
SysFreeString(itemStr); " Y3 ^ \, h& }. w# ` SysFreeString(valueStr); & B& g, z- U: e: J - E& g4 h- ]" h* q3 E/ o) X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 e" l% p+ f3 ^. x8 c8 w9 o- t1 j
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？？？？1 X4 T' V% @ \$ y1 L8 b. X
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2.这是request的程序3 J7 }) q# C7 S% _1 D7 C( p
// Request a value from Extend " P+ k2 C/ U# w; h//& I7 f; r0 S I0 n# g
// Initialize the variant that will hold the BSTR. Set the variant's 7 K/ b/ ~9 ?0 x$ b// type flag to indicate the fact that this variant holds a BSTR. Place the) ]" p4 U& F( B4 V
// BSTR into the variant structure.8 X' G2 o3 a* g& n; u( k
, ]9 C+ b$ `5 w; C( w/ }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# N% }3 x$ G1 l; ]: G! }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. \& l2 H0 \; M' S1 e: ^2 C
VariantInit(&requestVariant[0]); 0 c$ m6 I& y( K! m0 X requestVariant[0].vt = VT_BSTR;$ s5 ~) a; ]: S# v- J+ `
requestVariant[0].bstrVal = itemStr; 2 C* f% A$ A6 Q# _# w" L . l; @# C7 _* ]+ G, C topicStr = SysAllocString((WCHAR *) L"system");8 `7 ]& @9 v" G5 K# ]& u( n
VariantInit(&requestVariant[1]); 3 t2 X/ J( \; s requestVariant[1].vt = VT_BSTR; 6 Z- i5 G* S! Y# C4 ~, u requestVariant[1].bstrVal = topicStr; 2 k- W9 l! q" j/ w ' q( g2 _1 j1 Y5 S+ l7 I% r% `// Set the DISPPARAMS structure that holds the variant. ! m; \4 |5 [& v* o3 e* E! H, |9 K( y; c k3 y$ k5 R' T e
dp2.rgvarg = requestVariant;; G+ v+ b$ a6 Y! H ~3 H
dp2.cArgs = 2; / n3 R9 E- q& t" i7 i dp2.rgdispidNamedArgs = NULL;8 |3 U X6 O3 I8 K* h. L
dp2.cNamedArgs = 0;" k1 Z. ~+ E! {0 n$ L& P& j! @
$ |1 J, S* G/ V: d* U var.vt = VT_EMPTY;" m" f7 d1 V. T. j2 X: D
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// Call IDispatch::Invoke() 9 d" d( f: N% s, y$ d) F* @ T6 b; E0 R5 I
hr = m_pDisp->Invoke(; h" x2 F$ c1 ~# j# i9 n
requestID, , ]3 _' q2 H, s2 G* S, m I IID_NULL, & U( M9 _- e( B LOCALE_SYSTEM_DEFAULT, C6 w- U# o$ z3 R$ x" Z; D DISPATCH_METHOD,! T' o2 z$ @: p" @7 A
&dp2,& x" c) |# p7 L- u
&var, ' @6 a$ }; b( x* k- W &ei,& {% K. ~& r9 p: M% m5 ^. _
&uiErr);! u6 P( a2 @$ l# H. `2 q& q
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SysFreeString(topicStr);: E0 Q% k; m& z
SysFreeString(itemStr); " D( g6 G; ~6 _4 b请问该程序是获得extend里面的哪个值？" J) Z- _/ `% c0 n; k2 O* v, @
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
