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:) [1 b/ G% m% f
Name = (WCHAR *) L"Poke";" l+ E% J5 ~; o4 U" A" ]
# _! D( R+ ^- g hr = m_pDisp->GetIDsOfNames ( , ~: O% i3 V+ q) K( q, f9 |0 F IID_NULL, // reserved- e: i/ R% S5 z# \
&Name, // Array of names to get IDs for% [6 j+ ?: c8 Q- @3 `5 Q
1, // # of names in the array 1 Q1 ~; y Q+ a- B LOCALE_SYSTEM_DEFAULT, // System locale / L3 o& R+ p. u7 i &pokeID); // Array of IDs to fill on output / D2 h) Q$ ^" a: M ( B2 j$ I R1 N1 P; r. ^ if (hr) 4 o, U b; f( T { & @) w) ~+ Z K T, P j8 E MessageBox ("Get Poke Unsuccessful"); ( Q5 U y0 Z' p# b7 E return;- M( Q# d6 b* A) Y6 a- Z [4 m2 L. Y
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/**************************传递数据给extend**************************************/ * w+ `; @" d: w. a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 Q) o- H& P- f% E ]9 ?- {, ^/ T% O
9 Y5 X# M% w; t' A valueStr = SysAllocString((WCHAR *) L"1232");4 Y$ v) U; `1 q5 |- N E6 j
VariantInit(&pokeVariant[0]); 2 b1 u) y! ` w pokeVariant[0].vt = VT_BSTR;& t1 U# a1 a, E( v3 D& h* Z
pokeVariant[0].bstrVal = valueStr;7 q1 \' y6 L: |# g; c, b
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 F3 V; d; n& H' A$ R. T VariantInit(&pokeVariant[1]); / W/ b# J# d1 h5 _! l+ ^3 ?- y pokeVariant[1].vt = VT_BSTR;" a4 I# \# r0 M5 V, ]8 y& g3 `4 Y
pokeVariant[1].bstrVal = itemStr; 3 b: w& I- l" P6 F; N. x% c: W1 d7 N. q% d* t7 y9 r
topicStr = SysAllocString((WCHAR *) L"system");+ y7 ]- [: i+ `) d1 Z: P
VariantInit(&pokeVariant[2]); 7 ? }: N* y/ V# r; i# L6 y
pokeVariant[2].vt = VT_BSTR; 5 p$ t3 D x6 |( _ pokeVariant[2].bstrVal = topicStr; 0 W+ s7 Y5 q1 k. g- T# p5 B: U. j6 `3 s
// Set the DISPPARAMS structure that holds the variant. # |3 c! D3 B4 z8 o1 m # G5 E0 Y. p% u, b' j2 K/ I1 v b dp.rgvarg = pokeVariant; / j$ [1 P* ~2 l! Y- w dp.cArgs = 3;& I2 ~$ }. y: y* S3 w B
dp.rgdispidNamedArgs = NULL;; ]/ B7 U+ G3 ~1 `
dp.cNamedArgs = 0; 1 q0 E& L/ A+ e" r- m/ \4 v6 P; T2 x
// Call IDispatch::Invoke() : u/ }- S( w' H H0 W / f% d9 G. d( y! X/ q* e& P hr = m_pDisp->Invoke( : T: G9 S/ @( ^- d5 ~$ y! ~5 S pokeID,: e# Y( j. x" f+ H0 C
IID_NULL, 9 p# P, w# ]) {6 e% \ LOCALE_SYSTEM_DEFAULT, ; Q# u7 C1 h I* ` DISPATCH_METHOD,$ k6 [) w6 n: f, J
&dp, 1 ` f4 w5 m1 {6 S! A6 \" ]( t NULL,- m4 z9 _+ i! L' h
&ei,- E9 i& S& t* J. e/ C! y3 V: y* E
&uiErr); a3 e7 E. `+ x# b' e& Q. ~6 }5 Q
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SysFreeString(topicStr); 1 @4 `# j. _4 m2 q o& g. {+ Z SysFreeString(itemStr);: E9 p2 ^0 ?6 L! l2 Z; F
SysFreeString(valueStr); 5 D% W$ X- P1 u, ~& k 3 t( B4 `& z* G6 ]4 W4 u; { z* I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??? : P1 `; W1 S& K/ u Z/ c4 O$ C" A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????8 c4 f9 W; C+ a- a. O
! G& H+ g; L, `! n4 F 0 V: t, e5 T* ^" M2.这是request的程序 1 E! u( V3 W7 M8 A/ Q' X! W3 T7 Y! D0 w// Request a value from Extend l# q9 a1 u, m; J9 P/ Z1 g6 X
// v) K4 }+ ~( X( b) W$ g
// Initialize the variant that will hold the BSTR. Set the variant's; A, Q9 j4 C) ?1 H& P
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 y5 t* z; `! ]: z+ n/ U// BSTR into the variant structure. 5 J4 B, y7 O1 S* h ] ( |, `. w" y% s: T4 b) I1 A1 x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " y6 ^, F6 K Q ( g; t1 y. V; W# [1 ?$ h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 l) F0 l/ F- [- A
VariantInit(&requestVariant[0]); % d, H4 D! d( W: g# M% u! M requestVariant[0].vt = VT_BSTR; 0 d' e9 t, \9 r requestVariant[0].bstrVal = itemStr; + V; v" K9 q6 r9 j/ g4 a- N/ v# ]6 V6 A$ w# c+ |! t' S( r
topicStr = SysAllocString((WCHAR *) L"system"); 2 _7 Z1 I! _3 } VariantInit(&requestVariant[1]); : R% R/ t$ b. {5 g, I4 \ ]. }
requestVariant[1].vt = VT_BSTR;$ M8 I% j" F5 T- _, W6 f" ~; o
requestVariant[1].bstrVal = topicStr;+ B9 [ J( `% X+ o7 B/ X+ B
8 x" I- \2 X" ~) y: |// Set the DISPPARAMS structure that holds the variant.( Y% A: C% I; W a; x
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dp2.rgvarg = requestVariant;5 f# U7 g: v1 ~: q( F. `
dp2.cArgs = 2; 6 Q9 s% B" ]# P [& C2 P dp2.rgdispidNamedArgs = NULL; 0 K4 S% G+ M2 Q dp2.cNamedArgs = 0; , Q' G' Y: x( q9 y; e$ _2 h" `# C* X# B; v6 k4 l
var.vt = VT_EMPTY;4 q. @- }3 P& f* D9 @( R8 A
& F. Q& C @/ H8 R0 f// Call IDispatch::Invoke()' y. B; P; X" T8 _9 x
1 S$ z) [: ]5 G% ` hr = m_pDisp->Invoke( & a3 `9 z. o* {, N3 k( D Z/ [7 l requestID,4 m. k0 [6 R- J- q0 ]
IID_NULL,4 f9 G3 ]7 a% |! v, s% o% V
LOCALE_SYSTEM_DEFAULT, : z$ ?* h3 Y/ w. M2 r DISPATCH_METHOD, 7 [4 U, {: j t/ n1 N &dp2, " \4 O. f0 k+ P% \3 w4 @ &var,& [* \! v7 K% j' Z. T* c
&ei,. n& a! A) D3 A5 }" l
&uiErr); ! R" _3 p" t( }7 L% W2 i4 b# {! [- X1 T2 [0 v/ K0 i
SysFreeString(topicStr); 5 X3 m2 L \! ]) s) m& {1 M SysFreeString(itemStr);; \; U* V$ _0 W) y
请问该程序是获得extend里面的哪个值? r" n: x, m' O0 X, z5 I; k3 K
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????