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linguist/samples/Clarion/ConsoleSupport.clw
2014-11-27 13:41:21 +01:00

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Member()
Include('ConsoleSupport.inc'),ONCE
Map
MODULE('32-bit Windows API')
! General functions
GetLastError(),DWORD,PASCAL
! Console functions
GetStdHandle(DWORD),HANDLE,PASCAL,PROC,RAW
WriteConsole(Handle,Long,Dword,long,long),bool,Raw,Pascal,name('WriteConsoleA')
ReadConsole(Handle,Long,Dword,long,long),bool,Raw,Pascal,name('ReadConsoleA')
SetConsoleTitle(Long),Bool,Raw,Pascal,name('SetConsoleTitleA')
GetConsoleTitle(Long,dword),Bool,Raw,Pascal,name('GetConsoleTitleA')
SetConsoleMode(Handle,dWord),BOOL,RAW,PASCAL
GetConsoleMode(Handle,Long),BOOL,RAW,PASCAL
End
End
ConsoleSupport.Construct PROCEDURE
CODE
ConsoleSupport.Destruct PROCEDURE
CODE
ConsoleSupport.Init PROCEDURE () !,BYTE,VIRTUAL
CODE
SELF.OutputHandle = GetStdHandle(STD_OUTPUT_HANDLE)
If SELF.OutputHandle = INVALID_HANDLE_VALUE
Halt(1,'Unable to get output handle (' & GetLastError() & ')')
RETURN INVALID_HANDLE_VALUE
End
SELF.InputHandle = GetStdHandle(STD_INPUT_HANDLE)
if SELF.InputHandle = INVALID_HANDLE_VALUE
Halt(2,'Unable to get console input handle (' & GetLastError() & ')')
RETURN INVALID_HANDLE_VALUE
End
If ~SetConsoleMode(SELF.InputHandle,ENABLE_PROCESSED_INPUT )
Halt(3,'Unable to set console mode (' & GetLastError() & ')')
RETURN INVALID_OTHER
End
RETURN FALSE
ConsoleSupport.WriteLine PROCEDURE (STRING pText) !,BYTE,PROC,VIRTUAL
CODE
SELF.TextBuffer = SELF.Prefix & pText & '<13,10>'
If WriteConsole(SELF.OutputHandle, ADDRESS(SELF.TextBuffer), LEN(SELF.TextBuffer),ADDRESS(SELF.BytesWritten), NULL) = 0
Halt(4,'WriteConsoleError (' & GetLastError() & ')')
RETURN -1
End
RETURN FALSE
Consolesupport.ReadKey PROCEDURE () !,STRING,PROC,VIRTUAL
CODE
SELF.WriteLine('Press any key to continue...')
Clear(SELF.InBuffer)
Loop
IF ReadConsole(SELF.InputHandle,Address(SELF.InBuffer),100,Address(SELF.BytesRead),NULL) = 0 THEN
Halt(5,'Error on read console (' & GetLastError() & ')')
Break
End
Until SELF.BytesRead > 0
RETURN SELF.InBuffer