mayuipc.h

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// mayuipc.h - mayu inter process communication

#ifndef _MAYUIPC_H
#  define _MAYUIPC_H

#  include <windows.h>

#  ifdef __cplusplus
extern "C"
{
#  endif // __cplusplus

///
#  define WM_MayuIPC_NAME _T("MayuIPC{46269F4D-D560-40f9-B38B-DB5E280FEF47}")

	enum MayuIPCCommand {
		// enable or disable Mayu
		MayuIPCCommand_Enable = 1,
	};

	BOOL MayuIPC_PostMessage(MayuIPCCommand i_wParam, LPARAM i_lParam);
	BOOL MayuIPC_Enable(BOOL i_isEnabled);

#  ifdef _MAYUIPC_H_DEFINE_FUNCTIONS

	BOOL MayuIPC_PostMessage(MayuIPCCommand i_command, LPARAM i_lParam) {
		static UINT WM_MayuIPC;
		HWND hwnd;

		if (WM_MayuIPC == 0) {
			WM_MayuIPC = RegisterWindowMessage(WM_MayuIPC_NAME);
			if (WM_MayuIPC == 0) {
				return FALSE;
			}
		}

		hwnd = FindWindow(_T("mayuTasktray"), NULL);
		if (hwnd == NULL) {
			return FALSE;
		}
		PostMessage(hwnd, WM_MayuIPC, i_command, i_lParam);
		return TRUE;
	}

	BOOL MayuIPC_Enable(BOOL i_isEnabled) {
		return MayuIPC_PostMessage(MayuIPCCommand_Enable, i_isEnabled);
	}

#  endif // _MAYUIPC_H_DEFINE_FUNCTIONS

#  ifdef __cplusplus
}
#  endif // __cplusplus
#endif // !_MAYUIPC_H