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Как передать нажатия клавишь?   Найти похожие ветки 

 
Anikul   (2003-08-14 02:11) [0]

DOS программа написана на Basic"е, каком-то, со стандартными потоками она не работает... Я делаю AllocConsole, CreateProcess(nil, "prcor.exe", ..., SI, PI) и т.д. Взял код из какой-то книги - эмитировать нажатия клавишь SendKey("12{enter}"), например, но приходится делать SetForegraundWindow(H), а Н=FindWindow("windowsconsole", "prcor"), за дословность не ручаюсь. Потом пытаюсь прочитать экран ReadConsoleOutput, коряво но иногда работает... Программа, непример, не успевает запуститься а ей уже передаётся нажатие и т.д., В цикле помогает Application.ProcessMessange. Sleep практически не спасает..

Вопрос: Можно сделать всё это проще?
1. Передавать нажатие не ForegroungWindow а напрямую.
2. если нет application (у меня dll) заменить ProcessMessange на аналогичное


 
Некрофил - затейник__ ©   (2003-08-14 11:30) [1]

Аккуратно скопировано из MSDN передаеш код нажатия в stdin
#include <stdio.h>
#include <windows.h>

#define BUFSIZE 4096

HANDLE hChildStdinRd, hChildStdinWr, hChildStdinWrDup,
hChildStdoutRd, hChildStdoutWr, hChildStdoutRdDup,
hInputFile, hSaveStdin, hSaveStdout;

BOOL CreateChildProcess(VOID);
VOID WriteToPipe(VOID);
VOID ReadFromPipe(VOID);
VOID ErrorExit(LPTSTR);
VOID ErrMsg(LPTSTR, BOOL);

DWORD main(int argc, char *argv[])
{
SECURITY_ATTRIBUTES saAttr;
BOOL fSuccess;

// Set the bInheritHandle flag so pipe handles are inherited.

saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;

// The steps for redirecting child process"s STDOUT:
// 1. Save current STDOUT, to be restored later.
// 2. Create anonymous pipe to be STDOUT for child process.
// 3. Set STDOUT of the parent process to be write handle to
// the pipe, so it is inherited by the child process.
// 4. Create a noninheritable duplicate of the read handle and
// close the inheritable read handle.

// Save the handle to the current STDOUT.

hSaveStdout = GetStdHandle(STD_OUTPUT_HANDLE);

// Create a pipe for the child process"s STDOUT.

if (! CreatePipe(&hChildStdoutRd, &hChildStdoutWr, &saAttr, 0))
ErrorExit("Stdout pipe creation failed\n");

// Set a write handle to the pipe to be STDOUT.

if (! SetStdHandle(STD_OUTPUT_HANDLE, hChildStdoutWr))
ErrorExit("Redirecting STDOUT failed");

// Create noninheritable read handle and close the inheritable read
// handle.

fSuccess = DuplicateHandle(GetCurrentProcess(), hChildStdoutRd,
GetCurrentProcess(), &hChildStdoutRdDup , 0,
FALSE,
DUPLICATE_SAME_ACCESS);
if( !fSuccess )
ErrorExit("DuplicateHandle failed");
CloseHandle(hChildStdoutRd);

// The steps for redirecting child process"s STDIN:
// 1. Save current STDIN, to be restored later.
// 2. Create anonymous pipe to be STDIN for child process.
// 3. Set STDIN of the parent to be the read handle to the
// pipe, so it is inherited by the child process.
// 4. Create a noninheritable duplicate of the write handle,
// and close the inheritable write handle.

// Save the handle to the current STDIN.

hSaveStdin = GetStdHandle(STD_INPUT_HANDLE);

// Create a pipe for the child process"s STDIN.

if (! CreatePipe(&hChildStdinRd, &hChildStdinWr, &saAttr, 0))
ErrorExit("Stdin pipe creation failed\n");

// Set a read handle to the pipe to be STDIN.

if (! SetStdHandle(STD_INPUT_HANDLE, hChildStdinRd))
ErrorExit("Redirecting Stdin failed");

// Duplicate the write handle to the pipe so it is not inherited.

fSuccess = DuplicateHandle(GetCurrentProcess(), hChildStdinWr,
GetCurrentProcess(), &hChildStdinWrDup, 0,
FALSE, // not inherited
DUPLICATE_SAME_ACCESS);
if (! fSuccess)
ErrorExit("DuplicateHandle failed");

CloseHandle(hChildStdinWr);

// Now create the child process.

if (! CreateChildProcess())
ErrorExit("Create process failed");

// After process creation, restore the saved STDIN and STDOUT.

if (! SetStdHandle(STD_INPUT_HANDLE, hSaveStdin))
ErrorExit("Re-redirecting Stdin failed\n");

if (! SetStdHandle(STD_OUTPUT_HANDLE, hSaveStdout))
ErrorExit("Re-redirecting Stdout failed\n");

// Get a handle to the parent"s input file.

if (argc > 1)
hInputFile = CreateFile(argv[1], GENERIC_READ, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL);
else
hInputFile = hSaveStdin;

if (hInputFile == INVALID_HANDLE_VALUE)
ErrorExit("no input file\n");

// Write to pipe that is the standard input for a child process.

WriteToPipe();

// Read from pipe that is the standard output for child process.

ReadFromPipe();

return 0;
}

BOOL CreateChildProcess()
{
PROCESS_INFORMATION piProcInfo;
STARTUPINFO siStartInfo;

// Set up members of the PROCESS_INFORMATION structure.

ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );

// Set up members of the STARTUPINFO structure.

ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
siStartInfo.cb = sizeof(STARTUPINFO);

// Create the child process.

return CreateProcess(NULL,
"child", // command line
NULL, // process security attributes
NULL, // primary thread security attributes
TRUE, // handles are inherited
0, // creation flags
NULL, // use parent"s environment
NULL, // use parent"s current directory
&siStartInfo, // STARTUPINFO pointer
&piProcInfo); // receives PROCESS_INFORMATION
}

VOID WriteToPipe(VOID)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];

// Read from a file and write its contents to a pipe.

for (;;)
{
if (! ReadFile(hInputFile, chBuf, BUFSIZE, &dwRead, NULL) ||
dwRead == 0) break;
if (! WriteFile(hChildStdinWrDup, chBuf, dwRead,
&dwWritten, NULL)) break;
}

// Close the pipe handle so the child process stops reading.

if (! CloseHandle(hChildStdinWrDup))
ErrorExit("Close pipe failed\n");
}

VOID ReadFromPipe(VOID)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];
HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);

// Close the write end of the pipe before reading from the
// read end of the pipe.

if (!CloseHandle(hChildStdoutWr))
ErrorExit("Closing handle failed");

// Read output from the child process, and write to parent"s STDOUT.

for (;;)
{
if( !ReadFile( hChildStdoutRdDup, chBuf, BUFSIZE, &dwRead,
NULL) || dwRead == 0) break;
if (! WriteFile(hSaveStdout, chBuf, dwRead, &dwWritten, NULL))
break;
}
}

VOID ErrorExit (LPTSTR lpszMessage)
{
fprintf(stderr, "%s\n", lpszMessage);
ExitProcess(0);
}

// The code for the child process.

#include <windows.h>
#define BUFSIZE 4096

VOID main(VOID)
{
CHAR chBuf[BUFSIZE];
DWORD dwRead, dwWritten;
HANDLE hStdin, hStdout;
BOOL fSuccess;

hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
hStdin = GetStdHandle(STD_INPUT_HANDLE);
if ((hStdout == INVALID_HANDLE_VALUE) ||
(hStdin == INVALID_HANDLE_VALUE))
ExitProcess(1);

for (;;)
{
// Read from standard input.
fSuccess = ReadFile(hStdin, chBuf, BUFSIZE, &dwRead, NULL);
if (! fSuccess || dwRead == 0)
break;

// Write to standard output.
fSuccess = WriteFile(hStdout, chBuf, dwRead, &dwWritten, NULL);
if (! fSuccess)
break;
}
}


 
Некрофил - затейник__ ©   (2003-08-14 11:30) [2]

Аккуратно скопировано из MSDN передаеш код нажатия в stdin
#include <stdio.h>
#include <windows.h>

#define BUFSIZE 4096

HANDLE hChildStdinRd, hChildStdinWr, hChildStdinWrDup,
hChildStdoutRd, hChildStdoutWr, hChildStdoutRdDup,
hInputFile, hSaveStdin, hSaveStdout;

BOOL CreateChildProcess(VOID);
VOID WriteToPipe(VOID);
VOID ReadFromPipe(VOID);
VOID ErrorExit(LPTSTR);
VOID ErrMsg(LPTSTR, BOOL);

DWORD main(int argc, char *argv[])
{
SECURITY_ATTRIBUTES saAttr;
BOOL fSuccess;

// Set the bInheritHandle flag so pipe handles are inherited.

saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;

// The steps for redirecting child process"s STDOUT:
// 1. Save current STDOUT, to be restored later.
// 2. Create anonymous pipe to be STDOUT for child process.
// 3. Set STDOUT of the parent process to be write handle to
// the pipe, so it is inherited by the child process.
// 4. Create a noninheritable duplicate of the read handle and
// close the inheritable read handle.

// Save the handle to the current STDOUT.

hSaveStdout = GetStdHandle(STD_OUTPUT_HANDLE);

// Create a pipe for the child process"s STDOUT.

if (! CreatePipe(&hChildStdoutRd, &hChildStdoutWr, &saAttr, 0))
ErrorExit("Stdout pipe creation failed\n");

// Set a write handle to the pipe to be STDOUT.

if (! SetStdHandle(STD_OUTPUT_HANDLE, hChildStdoutWr))
ErrorExit("Redirecting STDOUT failed");

// Create noninheritable read handle and close the inheritable read
// handle.

fSuccess = DuplicateHandle(GetCurrentProcess(), hChildStdoutRd,
GetCurrentProcess(), &hChildStdoutRdDup , 0,
FALSE,
DUPLICATE_SAME_ACCESS);
if( !fSuccess )
ErrorExit("DuplicateHandle failed");
CloseHandle(hChildStdoutRd);

// The steps for redirecting child process"s STDIN:
// 1. Save current STDIN, to be restored later.
// 2. Create anonymous pipe to be STDIN for child process.
// 3. Set STDIN of the parent to be the read handle to the
// pipe, so it is inherited by the child process.
// 4. Create a noninheritable duplicate of the write handle,
// and close the inheritable write handle.

// Save the handle to the current STDIN.

hSaveStdin = GetStdHandle(STD_INPUT_HANDLE);

// Create a pipe for the child process"s STDIN.

if (! CreatePipe(&hChildStdinRd, &hChildStdinWr, &saAttr, 0))
ErrorExit("Stdin pipe creation failed\n");

// Set a read handle to the pipe to be STDIN.

if (! SetStdHandle(STD_INPUT_HANDLE, hChildStdinRd))
ErrorExit("Redirecting Stdin failed");

// Duplicate the write handle to the pipe so it is not inherited.

fSuccess = DuplicateHandle(GetCurrentProcess(), hChildStdinWr,
GetCurrentProcess(), &hChildStdinWrDup, 0,
FALSE, // not inherited
DUPLICATE_SAME_ACCESS);
if (! fSuccess)
ErrorExit("DuplicateHandle failed");

CloseHandle(hChildStdinWr);

// Now create the child process.

if (! CreateChildProcess())
ErrorExit("Create process failed");

// After process creation, restore the saved STDIN and STDOUT.

if (! SetStdHandle(STD_INPUT_HANDLE, hSaveStdin))
ErrorExit("Re-redirecting Stdin failed\n");

if (! SetStdHandle(STD_OUTPUT_HANDLE, hSaveStdout))
ErrorExit("Re-redirecting Stdout failed\n");

// Get a handle to the parent"s input file.

if (argc > 1)
hInputFile = CreateFile(argv[1], GENERIC_READ, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL);
else
hInputFile = hSaveStdin;

if (hInputFile == INVALID_HANDLE_VALUE)
ErrorExit("no input file\n");

// Write to pipe that is the standard input for a child process.

WriteToPipe();

// Read from pipe that is the standard output for child process.

ReadFromPipe();

return 0;
}

BOOL CreateChildProcess()
{
PROCESS_INFORMATION piProcInfo;
STARTUPINFO siStartInfo;

// Set up members of the PROCESS_INFORMATION structure.

ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );

// Set up members of the STARTUPINFO structure.

ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
siStartInfo.cb = sizeof(STARTUPINFO);

// Create the child process.

return CreateProcess(NULL,
"child", // command line
NULL, // process security attributes
NULL, // primary thread security attributes
TRUE, // handles are inherited
0, // creation flags
NULL, // use parent"s environment
NULL, // use parent"s current directory
&siStartInfo, // STARTUPINFO pointer
&piProcInfo); // receives PROCESS_INFORMATION
}

VOID WriteToPipe(VOID)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];

// Read from a file and write its contents to a pipe.

for (;;)
{
if (! ReadFile(hInputFile, chBuf, BUFSIZE, &dwRead, NULL) ||
dwRead == 0) break;
if (! WriteFile(hChildStdinWrDup, chBuf, dwRead,
&dwWritten, NULL)) break;
}

// Close the pipe handle so the child process stops reading.

if (! CloseHandle(hChildStdinWrDup))
ErrorExit("Close pipe failed\n");
}

VOID ReadFromPipe(VOID)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];
HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);

// Close the write end of the pipe before reading from the
// read end of the pipe.

if (!CloseHandle(hChildStdoutWr))
ErrorExit("Closing handle failed");

// Read output from the child process, and write to parent"s STDOUT.

for (;;)
{
if( !ReadFile( hChildStdoutRdDup, chBuf, BUFSIZE, &dwRead,
NULL) || dwRead == 0) break;
if (! WriteFile(hSaveStdout, chBuf, dwRead, &dwWritten, NULL))
break;
}
}

VOID ErrorExit (LPTSTR lpszMessage)
{
fprintf(stderr, "%s\n", lpszMessage);
ExitProcess(0);
}

// The code for the child process.

#include <windows.h>
#define BUFSIZE 4096

VOID main(VOID)
{
CHAR chBuf[BUFSIZE];
DWORD dwRead, dwWritten;
HANDLE hStdin, hStdout;
BOOL fSuccess;

hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
hStdin = GetStdHandle(STD_INPUT_HANDLE);
if ((hStdout == INVALID_HANDLE_VALUE) ||
(hStdin == INVALID_HANDLE_VALUE))
ExitProcess(1);

for (;;)
{
// Read from standard input.
fSuccess = ReadFile(hStdin, chBuf, BUFSIZE, &dwRead, NULL);
if (! fSuccess || dwRead == 0)
break;

// Write to standard output.
fSuccess = WriteFile(hStdout, chBuf, dwRead, &dwWritten, NULL);
if (! fSuccess)
break;
}
}


 
Некрофил - затейник__ ©   (2003-08-14 11:31) [3]

Аккуратно скопировано из MSDN передаеш код нажатия в stdin
#include <stdio.h>
#include <windows.h>

#define BUFSIZE 4096

HANDLE hChildStdinRd, hChildStdinWr, hChildStdinWrDup,
hChildStdoutRd, hChildStdoutWr, hChildStdoutRdDup,
hInputFile, hSaveStdin, hSaveStdout;

BOOL CreateChildProcess(VOID);
VOID WriteToPipe(VOID);
VOID ReadFromPipe(VOID);
VOID ErrorExit(LPTSTR);
VOID ErrMsg(LPTSTR, BOOL);

DWORD main(int argc, char *argv[])
{
SECURITY_ATTRIBUTES saAttr;
BOOL fSuccess;

// Set the bInheritHandle flag so pipe handles are inherited.

saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;

// The steps for redirecting child process"s STDOUT:
// 1. Save current STDOUT, to be restored later.
// 2. Create anonymous pipe to be STDOUT for child process.
// 3. Set STDOUT of the parent process to be write handle to
// the pipe, so it is inherited by the child process.
// 4. Create a noninheritable duplicate of the read handle and
// close the inheritable read handle.

// Save the handle to the current STDOUT.

hSaveStdout = GetStdHandle(STD_OUTPUT_HANDLE);

// Create a pipe for the child process"s STDOUT.

if (! CreatePipe(&hChildStdoutRd, &hChildStdoutWr, &saAttr, 0))
ErrorExit("Stdout pipe creation failed\n");

// Set a write handle to the pipe to be STDOUT.

if (! SetStdHandle(STD_OUTPUT_HANDLE, hChildStdoutWr))
ErrorExit("Redirecting STDOUT failed");

// Create noninheritable read handle and close the inheritable read
// handle.

fSuccess = DuplicateHandle(GetCurrentProcess(), hChildStdoutRd,
GetCurrentProcess(), &hChildStdoutRdDup , 0,
FALSE,
DUPLICATE_SAME_ACCESS);
if( !fSuccess )
ErrorExit("DuplicateHandle failed");
CloseHandle(hChildStdoutRd);

// The steps for redirecting child process"s STDIN:
// 1. Save current STDIN, to be restored later.
// 2. Create anonymous pipe to be STDIN for child process.
// 3. Set STDIN of the parent to be the read handle to the
// pipe, so it is inherited by the child process.
// 4. Create a noninheritable duplicate of the write handle,
// and close the inheritable write handle.

// Save the handle to the current STDIN.

hSaveStdin = GetStdHandle(STD_INPUT_HANDLE);

// Create a pipe for the child process"s STDIN.

if (! CreatePipe(&hChildStdinRd, &hChildStdinWr, &saAttr, 0))
ErrorExit("Stdin pipe creation failed\n");

// Set a read handle to the pipe to be STDIN.

if (! SetStdHandle(STD_INPUT_HANDLE, hChildStdinRd))
ErrorExit("Redirecting Stdin failed");

// Duplicate the write handle to the pipe so it is not inherited.

fSuccess = DuplicateHandle(GetCurrentProcess(), hChildStdinWr,
GetCurrentProcess(), &hChildStdinWrDup, 0,
FALSE, // not inherited
DUPLICATE_SAME_ACCESS);
if (! fSuccess)
ErrorExit("DuplicateHandle failed");

CloseHandle(hChildStdinWr);

// Now create the child process.

if (! CreateChildProcess())
ErrorExit("Create process failed");

// After process creation, restore the saved STDIN and STDOUT.

if (! SetStdHandle(STD_INPUT_HANDLE, hSaveStdin))
ErrorExit("Re-redirecting Stdin failed\n");

if (! SetStdHandle(STD_OUTPUT_HANDLE, hSaveStdout))
ErrorExit("Re-redirecting Stdout failed\n");

// Get a handle to the parent"s input file.

if (argc > 1)
hInputFile = CreateFile(argv[1], GENERIC_READ, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL);
else
hInputFile = hSaveStdin;

if (hInputFile == INVALID_HANDLE_VALUE)
ErrorExit("no input file\n");

// Write to pipe that is the standard input for a child process.

WriteToPipe();

// Read from pipe that is the standard output for child process.

ReadFromPipe();

return 0;
}

BOOL CreateChildProcess()
{
PROCESS_INFORMATION piProcInfo;
STARTUPINFO siStartInfo;

// Set up members of the PROCESS_INFORMATION structure.

ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );

// Set up members of the STARTUPINFO structure.

ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
siStartInfo.cb = sizeof(STARTUPINFO);

// Create the child process.

return CreateProcess(NULL,
"child", // command line
NULL, // process security attributes
NULL, // primary thread security attributes
TRUE, // handles are inherited
0, // creation flags
NULL, // use parent"s environment
NULL, // use parent"s current directory
&siStartInfo, // STARTUPINFO pointer
&piProcInfo); // receives PROCESS_INFORMATION
}

VOID WriteToPipe(VOID)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];

// Read from a file and write its contents to a pipe.

for (;;)
{
if (! ReadFile(hInputFile, chBuf, BUFSIZE, &dwRead, NULL) ||
dwRead == 0) break;
if (! WriteFile(hChildStdinWrDup, chBuf, dwRead,
&dwWritten, NULL)) break;
}

// Close the pipe handle so the child process stops reading.

if (! CloseHandle(hChildStdinWrDup))
ErrorExit("Close pipe failed\n");
}

VOID ReadFromPipe(VOID)
{
DWORD dwRead, dwWritten;
CHAR chBuf[BUFSIZE];
HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);

// Close the write end of the pipe before reading from the
// read end of the pipe.

if (!CloseHandle(hChildStdoutWr))
ErrorExit("Closing handle failed");

// Read output from the child process, and write to parent"s STDOUT.

for (;;)
{
if( !ReadFile( hChildStdoutRdDup, chBuf, BUFSIZE, &dwRead,
NULL) || dwRead == 0) break;
if (! WriteFile(hSaveStdout, chBuf, dwRead, &dwWritten, NULL))
break;
}
}

VOID ErrorExit (LPTSTR lpszMessage)
{
fprintf(stderr, "%s\n", lpszMessage);
ExitProcess(0);
}

// The code for the child process.

#include <windows.h>
#define BUFSIZE 4096

VOID main(VOID)
{
CHAR chBuf[BUFSIZE];
DWORD dwRead, dwWritten;
HANDLE hStdin, hStdout;
BOOL fSuccess;

hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
hStdin = GetStdHandle(STD_INPUT_HANDLE);
if ((hStdout == INVALID_HANDLE_VALUE) ||
(hStdin == INVALID_HANDLE_VALUE))
ExitProcess(1);

for (;;)
{
// Read from standard input.
fSuccess = ReadFile(hStdin, chBuf, BUFSIZE, &dwRead, NULL);
if (! fSuccess || dwRead == 0)
break;

// Write to standard output.
fSuccess = WriteFile(hStdout, chBuf, dwRead, &dwWritten, NULL);
if (! fSuccess)
break;
}
}


 
Некрофил - затейник__ ©   (2003-08-14 11:32) [4]

Сорри... я думал что ответ не публикуется и передал его 3 раза


 
dataMaster ©   (2003-08-14 12:50) [5]

Вот так полегче будет :-)
http://delphibase.endimus.com/?action=viewfunc&topic=winctrl&id=10039


 
Mike2 Kouzmine2   (2003-08-14 13:15) [6]

Некрофил - затейник__ © (14.08.03 11:32) [4] А я то подумал, что ты заикаешся..


 
___Nikolay ©   (2003-08-14 13:39) [7]

dataMaster
Так он же передает код нажатия в Дос-окно(консоль) которое что такое VM_KEYUP не знает.


 
dataMaster ©   (2003-08-14 13:56) [8]

2___Nikolay © (14.08.03 13:39) [7]

А, ну да... Я протупил.


 
dataMaster ©   (2003-08-14 14:06) [9]

http://blackman.wp-club.net/myfaq/1212_23122002.php
Имитация ввода с клавиатуры для ДОС-программы

const

ExtendedKeys: set of Byte = [ // incomplete list
VK_INSERT, VK_DELETE, VK_HOME, VK_END, VK_PRIOR, VK_NEXT,
VK_LEFT, VK_UP, VK_RIGHT, VK_DOWN, VK_NUMLOCK];

procedure SimulateKeyDown(Key : byte);
var
flags: DWORD;
begin
if Key in ExtendedKeys then flags := KEYEVENTF_EXTENDEDKEY else flags := 0;
keybd_event(Key, MapVirtualKey(Key, 0), flags, 0);
end;

procedure SimulateKeyUp(Key : byte);
var
flags: DWORD;
begin
if Key in ExtendedKeys then flags := KEYEVENTF_EXTENDEDKEY else flags := 0;
keybd_event(Key, MapVirtualKey(Key, 0), KEYEVENTF_KEYUP or flags, 0);
end;

procedure SimulateKeystroke(Key : byte);
var
flags: DWORD;
scancode: BYTE;
begin
if Key in ExtendedKeys then flags := KEYEVENTF_EXTENDEDKEY else flags := 0;
scancode := MapVirtualKey(Key, 0);
keybd_event(Key, scancode, flags, 0);
keybd_event(Key, scancode, KEYEVENTF_KEYUP or flags, 0);
end;



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