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:" d% T% M$ H. G& e1 ~
Name = (WCHAR *) L"Poke";! d+ o/ j4 L: T+ Q& W. \
f3 J3 d# L' G; m! Z hr = m_pDisp->GetIDsOfNames (/ B" n2 E, z* ?% r
IID_NULL, // reserved " i9 g" a0 X. ~$ s. G &Name, // Array of names to get IDs for ) c6 j7 ]8 z2 R: x9 b" Z- J4 ` 1, // # of names in the array5 U- N& v4 z3 y" \7 [
LOCALE_SYSTEM_DEFAULT, // System locale0 b( D2 P$ S- p( T) s7 h6 M8 p& M
&pokeID); // Array of IDs to fill on output8 L2 }& r0 x, W# x* \9 D
5 s$ W* u8 x6 C if (hr)7 s, O' S* _' s, o# O
{ 9 ~5 \! u& |. E5 B' U# m MessageBox ("Get Poke Unsuccessful");$ F2 B& T: @$ K* l( H- A% |% }3 T
return; % e: N4 @+ x4 F+ L ]/ O } " w- p6 Q% _ x7 f3 J/ e/ d/ [- p * @( i/ m1 I+ Q. [6 f/ n6 W$ `/ z/**************************传递数据给extend**************************************/ ) R% Q! |% p! `. O, j/ e ^) O. g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 K2 x+ c+ \' |6 b
" E# j& I- }9 ?
valueStr = SysAllocString((WCHAR *) L"1232"); 8 B. v, u* g2 b5 h7 e! G% | VariantInit(&pokeVariant[0]); - k c2 [8 M b% q' u& N pokeVariant[0].vt = VT_BSTR;2 I0 g! o0 \0 v* `$ B3 H* T" y
pokeVariant[0].bstrVal = valueStr;" f3 h. |2 R9 Q+ y% i
9 q0 {! q( D' M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" e: k0 J" @! [
VariantInit(&pokeVariant[1]); 0 J& p9 h( S: g8 C3 _" q pokeVariant[1].vt = VT_BSTR; 7 T5 O3 S4 z/ q& P H5 b pokeVariant[1].bstrVal = itemStr; # j% n% o5 A2 }) w. x ( k, P; B- _0 V topicStr = SysAllocString((WCHAR *) L"system");6 L3 y4 j y# ~( g( ~1 j+ r
VariantInit(&pokeVariant[2]); : j3 y0 x; B) f9 B pokeVariant[2].vt = VT_BSTR;" @8 E" Y# s2 B) L
pokeVariant[2].bstrVal = topicStr; 0 i9 z- h/ @* y9 B6 o5 `$ Y 9 ]& P2 z _7 T) T" G: V p) m// Set the DISPPARAMS structure that holds the variant. 0 C5 K; F( K' C" u. j o* h' v) Z: M* W! W9 c" u7 F8 ^
dp.rgvarg = pokeVariant;$ N2 t* O8 R; d8 x7 m
dp.cArgs = 3;* U4 V& W9 A* e+ t. u0 w, T
dp.rgdispidNamedArgs = NULL;, w8 }5 h% M( ]- L( N T" i* |6 i V
dp.cNamedArgs = 0;* S5 j- l7 |' C, P9 _% K1 ~
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// Call IDispatch::Invoke() 8 u+ v+ ~4 \$ r( i6 s9 l 5 p- T: }% \# _3 u* A7 a8 t: H- g hr = m_pDisp->Invoke(8 d7 K# v+ d! q* O# j" N9 p
pokeID,* Y4 F; Z9 S% S9 R( k1 [9 W
IID_NULL, ) N8 w' c6 W: ` LOCALE_SYSTEM_DEFAULT, & I8 U# @$ t- g2 h) m9 K8 K DISPATCH_METHOD, ) N9 C+ c/ r0 b) I* @# C& k &dp, 8 O7 n( o# d8 ]! ~% r+ L NULL,' l. [" Y$ n) Y6 r$ W
&ei,! E) s% K- h0 g1 Z2 t+ E
&uiErr);, J J: ~! z8 `* J
5 r4 ^3 Q& z" H$ q1 u! t
SysFreeString(topicStr);+ Z0 j+ ^8 Q7 k) d3 e5 w3 G; M
SysFreeString(itemStr);; a, @4 U2 e: l' e$ l
SysFreeString(valueStr);" P) A* O% r* O6 _* l4 R/ q
% x: i" R; X8 l1 r2 e! _, Q: ]3 _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??? $ h( {0 J8 `; t( J; R7 O# {6 O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???? : [0 H0 b& }5 Z; R) n8 i5 Q" d4 u # L* n4 h, ?, M0 J a: r! @8 b) |0 S3 w v g1 Q. ^
2.这是request的程序$ V0 T' v8 {3 f! e+ ?& }) K6 O3 n
// Request a value from Extend7 q2 x8 j+ T0 N( T) B5 `# r
//. j% q4 p" K; v; Z. g! r7 U+ q
// Initialize the variant that will hold the BSTR. Set the variant's , l- [& D" u/ U( T4 w// type flag to indicate the fact that this variant holds a BSTR. Place the / T- j# K+ z* I* y$ {5 |% t) x2 l! f// BSTR into the variant structure. O, ]/ f v$ g5 R2 f3 {0 O( E6 p5 }8 [. z* Z, a/ I6 T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 g3 o' v$ m' s% {, |
7 u+ c+ [& B5 U4 g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 a6 f N& }' s& D; D
VariantInit(&requestVariant[0]); * g) P! k3 t! ^) d- f! {' ~
requestVariant[0].vt = VT_BSTR;! j! s% h* w' ?- S1 Q
requestVariant[0].bstrVal = itemStr; 0 V; q- c" s, D5 N: K 7 m0 o# U/ a+ I1 ` topicStr = SysAllocString((WCHAR *) L"system"); 9 v. i4 T. ]' i9 M VariantInit(&requestVariant[1]); z1 h) E2 k, Z. s- a/ i
requestVariant[1].vt = VT_BSTR;3 m% g$ _; B- m' Q* D
requestVariant[1].bstrVal = topicStr; . p: d- E, B5 I) I * @# @( a) o& p: o// Set the DISPPARAMS structure that holds the variant. 2 h" X- q3 I. ~- T. O& B5 J1 q" J. H+ Y1 O+ q* b* Z
dp2.rgvarg = requestVariant;. o6 t# S( g: |; H2 a# r
dp2.cArgs = 2; / Y: U; x% k; s7 R7 D dp2.rgdispidNamedArgs = NULL; * a# v' j; h- Q7 Z( I3 e% o dp2.cNamedArgs = 0; 4 @* ]! \4 B# s" D " K; o) W: X3 q+ o. B0 Y1 x var.vt = VT_EMPTY; + a/ }* l+ f" a; T7 Y ! Q3 N- h: z& W8 [// Call IDispatch::Invoke()6 A' n! k; n3 ^# B
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hr = m_pDisp->Invoke( ; U. `- T- B0 g! N requestID, & a. j! M$ u3 a* T9 J/ r" T IID_NULL, 5 H# U% N1 c8 g4 R9 l LOCALE_SYSTEM_DEFAULT, " W. W5 z! b$ e# t DISPATCH_METHOD, . D1 y) l: i6 H, O& X$ O2 n v &dp2, * |2 r$ p3 @) H ]3 H1 l &var,: E/ h d# ~6 q8 t' M& @; G% W
&ei, 4 B5 J! P. q7 R( L5 _) X3 F! L &uiErr); 5 X. |" O2 \5 k/ V" C 4 l7 S5 g! C: _, i SysFreeString(topicStr);0 x3 G+ M) |2 R9 O& V5 J% ~
SysFreeString(itemStr); ; S4 ?3 G' E. c* Z0 v请问该程序是获得extend里面的哪个值?! F( x6 x, u2 L5 P
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????