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:+ ~/ C8 n8 s$ Q8 x% u& R1 n/ x
Name = (WCHAR *) L"Poke";) V. H+ U5 P$ O8 P6 R
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hr = m_pDisp->GetIDsOfNames ( 3 G7 ?% ?2 ~ f! d IID_NULL, // reserved / O" n0 k, G# Z4 H* a% ~ i+ T &Name, // Array of names to get IDs for- w' h4 ?2 c+ u- T% V. j- W3 Y
1, // # of names in the array ! `& F1 i0 o* j9 B' u2 J9 X LOCALE_SYSTEM_DEFAULT, // System locale , i- m4 N5 u( N: B, m &pokeID); // Array of IDs to fill on output 4 x+ c# |+ @2 F' J % `: i4 ~ D- Y if (hr) J- z; m( P: i( ]! A8 O0 H- O { ) G2 S2 l% x- a2 d; f MessageBox ("Get Poke Unsuccessful"); # [* t( p6 u- u5 o9 @ return; / D W- ]% A1 E- r1 h( X5 H } ; \! O) K: D& ^, |; F* h/ T 1 M0 [0 i. V& K4 D* ^- r/**************************传递数据给extend**************************************/% ~7 _" A3 p) p1 ]; ?! E3 s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 c- p; l- S. O7 k) Y m4 w# v . t9 t7 S6 s5 k/ p3 i
valueStr = SysAllocString((WCHAR *) L"1232"); H$ C8 T# I' S$ V1 f VariantInit(&pokeVariant[0]); , M# K3 j- x2 Q
pokeVariant[0].vt = VT_BSTR;, s; Y- F! E3 K! I, x! @6 Z, n
pokeVariant[0].bstrVal = valueStr; ! o3 z& h# L# P % J/ q) u! B5 K9 E, y- P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; S7 |; M& p, W1 B" ?
VariantInit(&pokeVariant[1]); # r" B' c8 F3 s3 {5 {( u1 m pokeVariant[1].vt = VT_BSTR;3 g" H$ _$ G! l% R. }; i1 O$ _
pokeVariant[1].bstrVal = itemStr;% J" g T4 P! ^7 B) W4 E
3 S* Z5 ~( i$ ]) w6 U. Y topicStr = SysAllocString((WCHAR *) L"system"); ( ?$ n/ M" m5 K5 R8 P2 Y$ `' ~! Z- W VariantInit(&pokeVariant[2]); ; p+ B4 x' ~8 d9 e* n9 w q- u( k
pokeVariant[2].vt = VT_BSTR; 4 z) Y7 h2 V: U( F( G' w! n8 I# h- h pokeVariant[2].bstrVal = topicStr;# G7 O$ F) r9 D- \! o1 |
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// Set the DISPPARAMS structure that holds the variant.! q" I) I& p6 V# ^
) b5 }* o& `; b( F6 J dp.rgvarg = pokeVariant; ( L. O* d2 q3 Q0 K2 I e Z dp.cArgs = 3;, M* z. a9 s+ A* C
dp.rgdispidNamedArgs = NULL;6 {# c: f' c- x6 v6 U% f! Y
dp.cNamedArgs = 0;, u; R, \) P9 x3 I; u2 l2 ?
) H. V$ [0 [* N# [; n// Call IDispatch::Invoke() , _% n) W& ~6 y- `8 ] . V( ^' P7 R x9 V$ u$ j2 N* g' J2 n hr = m_pDisp->Invoke(. t @: K. ?) R) P& @4 `& @
pokeID, : e$ T, J, S& F: j0 [7 ~. D& C IID_NULL, ! d$ p- Z6 ?3 }7 x LOCALE_SYSTEM_DEFAULT, / U7 W/ Y7 D5 x, n& K, A DISPATCH_METHOD,$ o! Q5 p9 [9 A
&dp, J) k- K+ s) `. k NULL, ; ?8 R& ~* v6 \& D$ Z! Z, f( L! Q( M &ei,* k7 \! D: P K% I# {: M
&uiErr);7 X- v6 b5 w/ O0 Q5 o
3 k' B9 B, e) Z" b9 L' F0 s3 U SysFreeString(topicStr); 6 y* [' l9 w5 X2 k R# E+ f SysFreeString(itemStr);: j8 a; R( l5 H ] ]% l
SysFreeString(valueStr); b0 o L4 M2 [# A9 x3 ]; [7 p
8 E" s5 O, o k& Y& U4 n+ N8 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???5 `# Z G$ M% t! I4 U. f' l7 i; O W, ]9 y
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???? 4 \' x: r# G4 a+ J* E1 Y2 q1 ]" [ , V7 _9 S/ v+ _3 L8 ?9 z F/ x3 R: N0 ^
2.这是request的程序 $ a$ E8 c7 R3 V# A// Request a value from Extend % w1 U4 \: l, @3 P m+ h% ^; D0 x7 y// & n" }4 G! _( l5 R2 C// Initialize the variant that will hold the BSTR. Set the variant's + n& R. k! w `+ k4 K& V4 h5 c4 q// type flag to indicate the fact that this variant holds a BSTR. Place the0 m" A' X& ^2 y/ H4 i
// BSTR into the variant structure. 2 |' N, J3 u" @4 s6 I2 E) o' p8 W& D) p- T3 x8 i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % w* o" X. E! Z: ]: D7 R# f# y ! t9 \8 O$ g0 n; {# i& n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' M! f* x6 \, e
VariantInit(&requestVariant[0]); 9 W( f' N0 S. N6 l4 g' o requestVariant[0].vt = VT_BSTR; * a# z7 s; Z% K1 Q/ |* K requestVariant[0].bstrVal = itemStr;& {9 e4 P. x: A3 {9 P% E
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topicStr = SysAllocString((WCHAR *) L"system"); ) _7 r1 h5 I* M0 W5 B8 {( I) S: S VariantInit(&requestVariant[1]); 6 O9 t Z( g$ |! F* Z) s0 S. U" J requestVariant[1].vt = VT_BSTR; / x+ X# a) C4 f k' m& B requestVariant[1].bstrVal = topicStr; ! N7 G4 w2 O* d3 r H/ H9 l. g, p! T# ]) b6 m# |: @
// Set the DISPPARAMS structure that holds the variant. [/ \* f8 f8 R" h4 X
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dp2.rgvarg = requestVariant;# O, l' h7 T2 P: c
dp2.cArgs = 2; 5 j2 R6 H: l L3 G dp2.rgdispidNamedArgs = NULL; s, g% q: X+ o
dp2.cNamedArgs = 0;. U8 g$ v. ~5 L
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var.vt = VT_EMPTY; / m" Y; h: G4 |. v: S2 y4 R6 a5 m( v" i/ C
// Call IDispatch::Invoke()+ @2 K+ @0 Y1 M! J
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hr = m_pDisp->Invoke(: H6 Q! f2 Q) A5 [1 H& t N
requestID,, t' Z: r4 ^/ I5 y8 m
IID_NULL, . g: Q( X) K9 R# E LOCALE_SYSTEM_DEFAULT,' ~- ^! g$ h5 k, a' M
DISPATCH_METHOD,+ A% c1 p; z, c" K
&dp2,8 I0 X0 w- |, [
&var, . O$ O. |4 u1 V5 Y# U &ei,0 L1 q! }8 I# W
&uiErr);9 Y" O% W& u; q; s/ G/ E. K& Q9 x( p
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SysFreeString(topicStr); 8 H% j& }. O5 C& l SysFreeString(itemStr);' g9 j7 [- K Y0 ?0 o
请问该程序是获得extend里面的哪个值? ' m$ X9 W8 { ?, Z6 @' E+ 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????