goldendict-ng/mouseover_win32/GDDataTranfer.h

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#ifndef __GDDATATRANSFER_H_
#define __GDDATATRANSFER_H_
/*
Header for other program to interact with GoldenDict
When GD needs to retrieve word under mouse cursor it can ask for this a target program
by sending a message.
GD_MESSAGE_NAME - name of the this message
Message number must be retrieved through RegisterWindowMessage function
Message parameters:
WPARAM - 0, not used
LPARAM - pointer to GDDataStruct structure
GDDataStruct fields:
dwSize - Structure size
hWnd - Window with requested word
Pt - Request coordinates (in screen coordinates, device units)
dwMaxLength - Maximum word length to transfer (buffer size in unicode symbols)
cwData - Buffer for requested word in UNICODE
If program process this message it must fill cwData and return TRUE
Otherwise GD will work by old technique
*/
#ifdef UNICODE
#define GD_MESSAGE_NAME L"GOLDENDICT_GET_WORD_IN_COORDINATES"
#else
#define GD_MESSAGE_NAME "GOLDENDICT_GET_WORD_IN_COORDINATES"
#endif
#pragma pack(push,1)
typedef struct {
DWORD dwSize;
HWND hWnd;
POINT Pt;
DWORD dwMaxLength;
WCHAR *cwData;
} GDDataStruct, *LPGDDataStruct;
#pragma pack(pop)
#endif