mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-24 12:44:07 +00:00
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
#include <windows.h>
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#include <wtypes.h>
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#include "ThTypes.h"
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#include "IAccExInt.h"
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#include "GetWordByIAccEx.h"
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GetPhysicalCursorPosFunc getPhysicalCursorPosFunc;
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BOOL FindGetPhysicalCursorPos()
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{
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HMODULE hm;
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getPhysicalCursorPosFunc = NULL;
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hm = GetModuleHandle( "user32.dll" );
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if( hm != NULL ) {
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getPhysicalCursorPosFunc = (GetPhysicalCursorPosFunc)GetProcAddress( hm, "GetPhysicalCursorPos" );
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}
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return( getPhysicalCursorPosFunc != NULL );
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}
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HRESULT GetParentAccessibleObject( IAccessible* pAcc, IAccessible** ppAccParent )
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{
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IDispatch* pDispatch = NULL;
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*ppAccParent = NULL;
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if ( pAcc == NULL )
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return E_INVALIDARG;
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HRESULT hr = pAcc->lpVtbl->get_accParent( pAcc, &pDispatch );
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if ( ( hr == S_OK ) && ( pDispatch != NULL ) ) {
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hr = pDispatch->lpVtbl->QueryInterface( pDispatch, &IID_IAccessible, (void**)ppAccParent );
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pDispatch->lpVtbl->Release( pDispatch );
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}
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return hr;
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}
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BOOL getWordByAccEx( POINT pt )
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{
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HRESULT hr;
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IAccessible *pAcc, *pAccParent;
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ITextProvider *pText;
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ITextRangeProvider *pTextRange;
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VARIANT var;
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BSTR bstr = NULL;
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int n;
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UiaPoint upt;
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POINT ppt = { 0, 0 };
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if( getPhysicalCursorPosFunc != NULL ) {
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getPhysicalCursorPosFunc( &ppt );
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} else {
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ppt = pt;
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}
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upt.x = ppt.x;
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upt.y = ppt.y;
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pAcc = NULL;
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hr = AccessibleObjectFromPoint( ppt, &pAcc, &var );
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if( hr != S_OK || pAcc == NULL) {
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VariantClear( &var );
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return FALSE;
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}
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pText = NULL;
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while( pAcc != NULL) {
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hr = GetPatternFromIAccessible( pAcc, 0, UIA_TextPatternId, &IID_ITextProvider, (void **)&pText );
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if( hr == S_OK && pText != NULL )
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break;
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pAccParent = NULL;
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hr = GetParentAccessibleObject( pAcc, &pAccParent );
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pAcc->lpVtbl->Release( pAcc );
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pAcc = pAccParent;
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}
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if( pAcc == NULL )
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return FALSE;
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pAcc->lpVtbl->Release( pAcc );
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pTextRange = NULL;
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hr = pText->lpVtbl->RangeFromPoint( pText, upt, &pTextRange );
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if( hr != S_OK || pTextRange == NULL ) {
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pText->lpVtbl->Release( pText );
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return FALSE;
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}
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hr = pTextRange->lpVtbl->ExpandToEnclosingUnit( pTextRange, TextUnit_Word );
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if( hr == S_OK) {
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bstr = NULL;
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hr = pTextRange->lpVtbl->GetText( pTextRange, 255, &bstr );
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if (hr == S_OK) {
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n = SysStringLen( bstr );
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if( n != 0 ) {
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n = WideCharToMultiByte( CP_UTF8, 0, (LPCWSTR)bstr, n, GlobalData->CurMod.MatchedWord, sizeof( GlobalData->CurMod.MatchedWord ) - 1, NULL, NULL );
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GlobalData->CurMod.WordLen = n;
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GlobalData->CurMod.MatchedWord[n] = 0;
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}
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SysFreeString( bstr );
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}
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}
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pTextRange->lpVtbl->Release( pTextRange );
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pText->lpVtbl->Release( pText );
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return TRUE;
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}
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