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:. P" u3 X; P' k+ w+ N
Name = (WCHAR *) L"Poke"; * L9 F* s5 b$ o' Z + E9 x t! E) P2 h2 N* N hr = m_pDisp->GetIDsOfNames ( $ i# @- ^2 H" B p' I IID_NULL, // reserved 7 d8 Q% U& n2 H4 k, f4 T &Name, // Array of names to get IDs for ! L$ H( T* J) ^0 ]+ Q5 D 1, // # of names in the array ( c1 \- H9 o: |. L! ? LOCALE_SYSTEM_DEFAULT, // System locale$ s9 n1 S& c; N3 I
&pokeID); // Array of IDs to fill on output1 x9 n# g% d2 W/ _6 @& H5 d3 v
% Y f- T) A4 u" S# A5 m if (hr). g6 n8 Z3 i9 \
{: j" p. o# Y$ `
MessageBox ("Get Poke Unsuccessful"); & w( v3 C) s% x N# S' ? return; & l4 L* z0 W% Y' ~ } ) ^ [- W' Y) x! d2 ?. N& T4 \+ i/ o $ c4 z& E9 ]3 b5 e& V' R5 U/**************************传递数据给extend**************************************/. E6 u& w" |# h* k3 Y( E- I3 ~2 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' M+ k) X% Z& C( R
! h. H, @$ }; |$ C' a valueStr = SysAllocString((WCHAR *) L"1232");) F6 m5 C, |$ w" |9 G+ ]4 C+ S
VariantInit(&pokeVariant[0]); {: U4 r4 D9 D) O" J( W# H$ U pokeVariant[0].vt = VT_BSTR;# v/ _) {, Y' X2 e
pokeVariant[0].bstrVal = valueStr;/ c) {* [: l8 u* R+ P0 V$ Y
9 `+ R0 p0 ?! W; R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 ^* @2 x% \$ d$ |! r0 r VariantInit(&pokeVariant[1]); ; p/ R7 s; z( ~ e4 x
pokeVariant[1].vt = VT_BSTR; 9 n7 @, r) `) l8 J pokeVariant[1].bstrVal = itemStr; ' J$ K/ V' z3 K/ o, r$ b & G* r' b8 m+ P# W# A topicStr = SysAllocString((WCHAR *) L"system");$ m" z- l- c5 v6 ?' a1 s
VariantInit(&pokeVariant[2]); 8 j7 d/ k) ^8 w) V$ x7 G3 K pokeVariant[2].vt = VT_BSTR; # x6 |; t# B1 \" Q0 e0 ]7 f& R pokeVariant[2].bstrVal = topicStr;+ O, j: I* u% {# ^0 ~
9 ~8 O& I. j, S# w y K
// Set the DISPPARAMS structure that holds the variant.- e- |+ o! V: n! u7 T, H4 m
' e: [+ I% ^4 Q6 M- u
dp.rgvarg = pokeVariant; ( r/ S4 a2 Z' K3 a4 T5 L$ T dp.cArgs = 3; 3 {- x( ]/ l( U) I3 | dp.rgdispidNamedArgs = NULL;# \8 y$ M$ a# k2 ^9 q3 `3 P
dp.cNamedArgs = 0; ' v; u0 Z4 p+ z( Y+ H8 O ! f# t5 J' l. c+ [0 K// Call IDispatch::Invoke()$ t* R& m3 g2 S+ L: |
3 @ {9 L6 `% K( o: |4 `7 r hr = m_pDisp->Invoke($ I! M: B5 m: i, T
pokeID,- o7 v+ c2 x) a& Q
IID_NULL,$ b8 f0 w$ c l6 e
LOCALE_SYSTEM_DEFAULT, % x! j& Z: R/ k3 [+ f DISPATCH_METHOD,% N; b' g5 _4 C! \0 H* G4 D
&dp,. P3 u, s V5 Q0 M
NULL,) V3 U8 L M% l% _) l$ q
&ei, + k- {9 f/ d- n! S2 @$ w I &uiErr);2 A" x% l1 @% z
0 W7 |/ [1 k9 D. B% x+ A/ b. W. X
SysFreeString(topicStr); 2 f% A) v. ^1 ]2 A* n: F' W; F SysFreeString(itemStr); . X4 t7 j+ _* f! Q% c SysFreeString(valueStr);4 j; u7 {" v" l' g
7 z/ j' F( \7 S. l; T U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???: {6 r( t, f; Q" C& q
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???? z2 m- A" c7 S6 K/ I
& V7 E8 k1 Q/ S
. x. L2 E# E w' K& C" A" K$ C
2.这是request的程序 c! g2 q5 O% m1 y; I- {
// Request a value from Extend 4 d( p, v# R+ o8 G0 g// 4 n3 ` u8 \. R# [// Initialize the variant that will hold the BSTR. Set the variant's 0 Z1 |& X4 @* d( B// type flag to indicate the fact that this variant holds a BSTR. Place the 0 r' V: v0 ?/ V& Q2 s// BSTR into the variant structure.; ~9 O3 L. Z+ T0 P% k; t; a' |/ e
0 X! |6 x* P: Z
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( k# r2 t9 q3 C- O- ]& [
& _6 x0 a( J" W' C6 C& k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 h3 k# i& S% ^% m VariantInit(&requestVariant[0]); $ M+ _0 t, Z, e& g4 m2 Y1 I/ l requestVariant[0].vt = VT_BSTR;2 p1 ?% u/ I* U8 q( U
requestVariant[0].bstrVal = itemStr; - [ `5 j' B2 v4 c+ ?$ [3 T% m! r- J, O" v# K( Z- c \. y$ m
topicStr = SysAllocString((WCHAR *) L"system");1 j- ^# h5 Q& o6 O8 n- S
VariantInit(&requestVariant[1]); 3 q2 H' v7 u! w' a requestVariant[1].vt = VT_BSTR; l. B% t/ e+ C, z. |7 ^$ n/ I( d1 X
requestVariant[1].bstrVal = topicStr;+ O. n3 r+ J4 J$ d8 Z
6 i4 K8 X4 s4 ~9 S, c// Set the DISPPARAMS structure that holds the variant.6 m+ g7 Z8 ]% M5 g$ f% e
- e' K5 K& \, e; t
dp2.rgvarg = requestVariant; r- x' N! I( {; b3 O! n
dp2.cArgs = 2; ; _: I$ [, {$ E dp2.rgdispidNamedArgs = NULL;' @4 j2 w6 Q3 w
dp2.cNamedArgs = 0; ( Z1 v* g; ~; V$ V" ], v2 e " G! q1 X* \4 D! B% O7 E* _# L6 n var.vt = VT_EMPTY; 1 D- n9 P% m% v+ V/ I( P/ ]9 r( S5 v4 }
// Call IDispatch::Invoke()) |+ k8 v! @# D6 u' Z8 |- m* L
5 z5 J9 f& s4 z( Q hr = m_pDisp->Invoke( # X) F* {- f$ U requestID,1 i' O! O1 u M* r% q
IID_NULL,3 w+ ?) x. q( H
LOCALE_SYSTEM_DEFAULT, 6 l/ j. d M; `% V e. Y' I DISPATCH_METHOD,& m( y G& K' N+ j) t5 N3 @2 E
&dp2, 5 G" G* P6 e) Q& e) d) f &var,% e) [3 ?7 H6 P. M
&ei, % b; ]' m( l6 P8 x0 M: ~ &uiErr); " l3 ~8 H' F; q+ F: y; G/ A. j' H8 v' Z: E4 ~) J P) i
SysFreeString(topicStr);1 L" C& z4 d! A
SysFreeString(itemStr); 3 \! J# b3 k/ Z# `1 M+ C. i2 u请问该程序是获得extend里面的哪个值?4 }9 y9 N2 g) G4 E0 o" j
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????