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:" a4 K& N( I: M" s
Name = (WCHAR *) L"Poke";+ n% y6 I R1 y
C9 q' `7 C0 s' n$ F# z! ^ hr = m_pDisp->GetIDsOfNames ( ! p! S; k1 N2 r IID_NULL, // reserved ; w$ t+ G& e1 L' T) b &Name, // Array of names to get IDs for 1 R% Z( r" j8 G: {; g0 \" W 1, // # of names in the array D( b. G% N/ ? LOCALE_SYSTEM_DEFAULT, // System locale# l7 M7 v# Z$ J- }& I
&pokeID); // Array of IDs to fill on output: a/ S' ?4 W$ ` ?( k p9 `5 g
. T9 B) I5 O2 x) [" {
if (hr) 9 y/ a" m9 U9 c6 F8 P0 J7 v { 9 F/ K! i2 V4 ~ MessageBox ("Get Poke Unsuccessful");, { a: S$ T- k! E
return;" m& {3 b7 K0 f" f! |
} ; k* M( r" w4 @+ m _& }8 n ( q- |$ g! \) R# `, c- U; X/**************************传递数据给extend**************************************/0 K V8 ^5 c# A2 z; ^- Z8 T; \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 U" O3 J/ z. n" u 2 m7 v: @, O- C' z, F2 u
valueStr = SysAllocString((WCHAR *) L"1232");# M. N8 X W l. v
VariantInit(&pokeVariant[0]); / {' J7 ` k* l4 K8 ?# k pokeVariant[0].vt = VT_BSTR; 7 Y% o, b' [8 d# L4 T2 |: | pokeVariant[0].bstrVal = valueStr; 2 Y$ }/ z1 Z! u! L y " d0 C a5 x$ K, R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 m% b, F. J9 @3 I2 K( n0 T5 H VariantInit(&pokeVariant[1]); / Z: M2 d1 { y# w. I5 g
pokeVariant[1].vt = VT_BSTR; # j9 O% a* g( D pokeVariant[1].bstrVal = itemStr;; Q' H* r1 a) N8 u, s! A( f
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topicStr = SysAllocString((WCHAR *) L"system"); ' }6 l) n; Q9 H7 M7 S VariantInit(&pokeVariant[2]); : y) K) _- e" M# L# I
pokeVariant[2].vt = VT_BSTR;# E' E! \5 j0 |0 Q
pokeVariant[2].bstrVal = topicStr;1 ]# h0 Z' f+ w& K) n, G
; |, x7 k, u4 M// Set the DISPPARAMS structure that holds the variant. - t; a' r7 j9 k( t7 V" M3 s 7 L7 E0 t! A1 V; D" h dp.rgvarg = pokeVariant;, ]% a; E' V9 W2 A% I- [
dp.cArgs = 3;* d, M) k! a9 B6 X: M+ z
dp.rgdispidNamedArgs = NULL; $ ^' \6 B# B) g" P% q/ M dp.cNamedArgs = 0; , z2 R' Z) G7 P2 Q7 Q' u) M c) H, o" z) @2 ?
// Call IDispatch::Invoke()- S4 A/ h6 f+ E- `$ W
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hr = m_pDisp->Invoke( * G. y: ^' D, ~ pokeID,# t0 b, s+ \1 m* f9 f
IID_NULL,! Z) f) [% j- a+ y6 M0 b6 R& w' k
LOCALE_SYSTEM_DEFAULT, & T% x, u' C$ y9 Z DISPATCH_METHOD, 5 o( b* l( \# E3 o( } &dp,+ \( ]" r6 x* h
NULL, ; a2 B! T, n1 E9 |4 p &ei, " c3 Q/ J# X. G" ?$ d &uiErr); 6 X6 C: Y# b1 T+ r: g( z , G" }8 V( x3 Y! Q9 R& [ SysFreeString(topicStr);$ w0 O3 Q+ n* \) M! v7 t, k
SysFreeString(itemStr); 4 }* t% g @3 H SysFreeString(valueStr); 3 I0 N7 h( a; h% M% E" Q' @. q2 R) C' v( K$ 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???1 f$ P- w3 {& T- _$ I
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????* e4 B9 R3 z% L% r7 N) f. Z
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2.这是request的程序! l6 K2 _) H% G7 w
// Request a value from Extend2 N7 k/ y$ k6 g) X7 {: @3 M6 I
// 4 |( m. I8 G* q8 H+ z3 T// Initialize the variant that will hold the BSTR. Set the variant's , o- _ {) j) W8 |// type flag to indicate the fact that this variant holds a BSTR. Place the6 ~1 ^+ y% q0 m/ J, u8 Z) E) l& L. O
// BSTR into the variant structure. . C* t9 N5 S6 k1 H& n/ e8 }& b( K2 Y. m6 Y! M
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. s- Y. w# x7 {) n# B
b; N- c+ h# L" m9 f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; j e8 E# S, F* x; o VariantInit(&requestVariant[0]); 7 C; }$ g! b5 _/ u0 c3 f
requestVariant[0].vt = VT_BSTR; " x' B/ u2 R% t' a$ v) ^ requestVariant[0].bstrVal = itemStr;! K/ Z5 ?. w' \% y* c0 u* ~
0 @7 h# J5 u, l8 h: }6 H topicStr = SysAllocString((WCHAR *) L"system");; v6 k6 P$ G* w1 ^& p6 D+ }
VariantInit(&requestVariant[1]); 4 @9 F( h! m" Y3 ]1 t6 ^2 ?7 T h# \9 h requestVariant[1].vt = VT_BSTR; & ]( X, L4 P" t requestVariant[1].bstrVal = topicStr; 0 I8 |% d }) y0 u7 g; }1 T, T! ]# z: z* S' A0 T
// Set the DISPPARAMS structure that holds the variant. % f7 W3 D' ~% h/ F9 j+ C8 t8 s0 P5 ^9 A! X- |, m
dp2.rgvarg = requestVariant;$ H: q4 s5 Q3 z- C; R* O
dp2.cArgs = 2; ( V/ e2 E) v2 C dp2.rgdispidNamedArgs = NULL; K4 a! y# o2 t0 b/ v9 Y: f
dp2.cNamedArgs = 0; 0 J S5 J1 |! X4 I _6 ^+ K4 I& n0 S var.vt = VT_EMPTY;* y+ d$ h" u1 {& }2 z8 }4 G* C) }
9 V# [- a) L" V9 b( K// Call IDispatch::Invoke() + ~ O! e1 N/ M( w: D $ e- M1 S/ {+ c4 W h hr = m_pDisp->Invoke( ; R& e# j* u' q$ k requestID,3 q/ D) C7 ?4 X* W# i2 V
IID_NULL,: Q H/ y# a( s5 r( f. b
LOCALE_SYSTEM_DEFAULT,0 N _, g; Q1 W$ ~
DISPATCH_METHOD, 3 D6 T0 g S- c &dp2, / u( l! o1 p6 p; K* {3 s &var,& B& i% ]7 ?& N2 h4 N+ a4 B
&ei, 2 G8 Y3 l" L& d' z) N. ]6 P Q &uiErr); 6 g7 H5 ?- p# u- z) f% T- M9 ^+ d
SysFreeString(topicStr);5 c: K7 |4 g" L6 e
SysFreeString(itemStr);" W, v4 q# s. B) ^# M/ Q: p
请问该程序是获得extend里面的哪个值?6 `6 _2 k$ y: _( I
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????