1,221
社区成员
发帖
与我相关
我的任务
分享谁有createprocess函数的参数说明？
谁有createprocess函数的参数说明？
还有我模仿了一个程序
STARTUPINFO StartupInfo;
PROCESS_INFORMATION ProcessInfo;
StartupInfo.cb = sizeof(StartupInfo);
//StartupInfo.cb = sizeof(STARTUPINFO);
StartupInfo.dwFlags = STARTF_USESHOWWINDOW;
StartupInfo.wShowWindow = SW_SHOWDEFAULT;
CreateProcess(NULL,
"client",
NULL,
NULL,
FALSE,
CREATE_NEW_CONSOLE | NORMAL_PRIORITY_CLASS,
NULL,
NULL,
&StartupInfo,
&ProcessInfo);
那时我要调的程序一直不出来，还报错，但加了一句
memset(&StartupInfo, 0, sizeof(StartupInfo)); //加这一行就可以了
这样就可以显示了，为什么？
还有我模仿了一个程序
STARTUPINFO StartupInfo;
PROCESS_INFORMATION ProcessInfo;
StartupInfo.cb = sizeof(StartupInfo);
//StartupInfo.cb = sizeof(STARTUPINFO);
StartupInfo.dwFlags = STARTF_USESHOWWINDOW;
StartupInfo.wShowWindow = SW_SHOWDEFAULT;
CreateProcess(NULL,
"client",
NULL,
NULL,
FALSE,
CREATE_NEW_CONSOLE | NORMAL_PRIORITY_CLASS,
NULL,
NULL,
&StartupInfo,
&ProcessInfo);
那时我要调的程序一直不出来，还报错，但加了一句
memset(&StartupInfo, 0, sizeof(StartupInfo)); //加这一行就可以了
这样就可以显示了，为什么？
...全文
请发表友善的回复…
发表回复
qifengw 2004-03-03
- 打赏
- 举报
给分
土豆薯条 2004-03-03
- 打赏
- 举报
结贴拉
supwjhuLoveCjj 2003-09-01
- 打赏
- 举报
关注中..........
学习中..........
学习中..........
NowCan 2003-09-01
- 打赏
- 举报
还有，装个MSDN吧，这些都有的。
NowCan 2003-09-01
- 打赏
- 举报
我一般用GetStartupInfo((&StartupInfo)代替memset(&StartupInfo, 0, sizeof(StartupInfo));
netsys2 2003-08-21
- 打赏
- 举报
dwCreationFlags
Specifies additional flags that control the priority class and the creation of the process. The following creation flags can be specified in any combination, except as noted:
Value Meaning
CREATE_DEFAULT_ERROR_MODE
The new process does not inherit the error mode of the calling process. Instead, CreateProcess gives the new process the current default error mode. An application sets the current default error mode by calling SetErrorMode.This flag is particularly useful for multi-threaded shell applications that run with hard errors disabled. The default behavior for CreateProcess is for the new process to inherit the error mode of the caller. Setting this flag changes that default behavior.
CREATE_NEW_CONSOLE
The new process has a new console, instead of inheriting the parent's console. This flag cannot be used with the DETACHED_PROCESS flag.
CREATE_NEW_PROCESS_GROUP
The new process is the root process of a new process group. The process group includes all processes that are descendants of this root process. The process identifier of the new process group is the same as the process identifier, which is returned in the lpProcessInformation parameter. Process groups are used by the GenerateConsoleCtrlEvent function to enable sending a CTRL+C or CTRL+BREAK signal to a group of console processes.
CREATE_SEPARATE_WOW_VDM
Windows NT only: This flag is valid only when starting a 16-bit Windows-based application. If set, the new process is run in a private Virtual DOS Machine (VDM). By default, all 16-bit Windows-based applications are run as threads in a single, shared VDM. The advantage of running separately is that a crash only kills the single VDM; any other programs running in distinct VDMs continue to function normally. Also, 16-bit Windows-based applications that are run in separate VDMs have separate input queues. That means that if one application hangs momentarily, applications in separate VDMs continue to receive input.
CREATE_SHARED_WOW_VDM
Windows NT only: The flag is valid only when starting a 16-bit Windows-based application. If the DefaultSeparateVDM switch in the Windows section of WIN.INI is TRUE, this flag causes the CreateProcess function to override the switch and run the new process in the shared Virtual DOS Machine.
CREATE_SUSPENDED
The primary thread of the new process is created in a suspended state, and does not run until the ResumeThread function is called.
CREATE_UNICODE_ENVIRONMENT
If set, the environment block pointed to by lpEnvironment uses Unicode characters. If clear, the environment block uses ANSI characters.
DEBUG_PROCESS
If this flag is set, the calling process is treated as a debugger, and the new process is a process being debugged. The system notifies the debugger of all debug events that occur in the process being debugged.If you create a process with this flag set, only the calling thread (the thread that called CreateProcess) can call the WaitForDebugEvent function.
DEBUG_ONLY_THIS_PROCESS
If not set and the calling process is being debugged, the new process becomes another process being debugged by the calling process's debugger. If the calling process is not a process being debugged, no debugging-related actions occur.
DETACHED_PROCESS
For console processes, the new process does not have access to the console of the parent process. The new process can call the AllocConsole function at a later time to create a new console. This flag cannot be used with the CREATE_NEW_CONSOLE flag.
The dwCreationFlags parameter also controls the new process's priority class, which is used in determining the scheduling priorities of the process's threads. If none of the following priority class flags is specified, the priority class defaults to NORMAL_PRIORITY_CLASS unless the priority class of the creating process is IDLE_PRIORITY_CLASS. In this case the default priority class of the child process is IDLE_PRIORITY_CLASS. One of the following flags can be specified:
Priority Meaning
HIGH_PRIORITY_CLASS Indicates a process that performs time-critical tasks that must be executed immediately for it to run correctly. The threads of a high-priority class process preempt the threads of normal-priority or idle-priority class processes. An example is Windows Task List, which must respond quickly when called by the user, regardless of the load on the operating system. Use extreme care when using the high-priority class, because a high-priority class CPU-bound application can use nearly all available cycles.
IDLE_PRIORITY_CLASS Indicates a process whose threads run only when the system is idle and are preempted by the threads of any process running in a higher priority class. An example is a screen saver. The idle priority class is inherited by child processes.
NORMAL_PRIORITY_CLASS Indicates a normal process with no special scheduling needs.
REALTIME_PRIORITY_CLASS Indicates a process that has the highest possible priority. The threads of a real-time priority class process preempt the threads of all other processes, including operating system processes performing important tasks. For example, a real-time process that executes for more than a very brief interval can cause disk caches not to flush or cause the mouse to be unresponsive.
Specifies additional flags that control the priority class and the creation of the process. The following creation flags can be specified in any combination, except as noted:
Value Meaning
CREATE_DEFAULT_ERROR_MODE
The new process does not inherit the error mode of the calling process. Instead, CreateProcess gives the new process the current default error mode. An application sets the current default error mode by calling SetErrorMode.This flag is particularly useful for multi-threaded shell applications that run with hard errors disabled. The default behavior for CreateProcess is for the new process to inherit the error mode of the caller. Setting this flag changes that default behavior.
CREATE_NEW_CONSOLE
The new process has a new console, instead of inheriting the parent's console. This flag cannot be used with the DETACHED_PROCESS flag.
CREATE_NEW_PROCESS_GROUP
The new process is the root process of a new process group. The process group includes all processes that are descendants of this root process. The process identifier of the new process group is the same as the process identifier, which is returned in the lpProcessInformation parameter. Process groups are used by the GenerateConsoleCtrlEvent function to enable sending a CTRL+C or CTRL+BREAK signal to a group of console processes.
CREATE_SEPARATE_WOW_VDM
Windows NT only: This flag is valid only when starting a 16-bit Windows-based application. If set, the new process is run in a private Virtual DOS Machine (VDM). By default, all 16-bit Windows-based applications are run as threads in a single, shared VDM. The advantage of running separately is that a crash only kills the single VDM; any other programs running in distinct VDMs continue to function normally. Also, 16-bit Windows-based applications that are run in separate VDMs have separate input queues. That means that if one application hangs momentarily, applications in separate VDMs continue to receive input.
CREATE_SHARED_WOW_VDM
Windows NT only: The flag is valid only when starting a 16-bit Windows-based application. If the DefaultSeparateVDM switch in the Windows section of WIN.INI is TRUE, this flag causes the CreateProcess function to override the switch and run the new process in the shared Virtual DOS Machine.
CREATE_SUSPENDED
The primary thread of the new process is created in a suspended state, and does not run until the ResumeThread function is called.
CREATE_UNICODE_ENVIRONMENT
If set, the environment block pointed to by lpEnvironment uses Unicode characters. If clear, the environment block uses ANSI characters.
DEBUG_PROCESS
If this flag is set, the calling process is treated as a debugger, and the new process is a process being debugged. The system notifies the debugger of all debug events that occur in the process being debugged.If you create a process with this flag set, only the calling thread (the thread that called CreateProcess) can call the WaitForDebugEvent function.
DEBUG_ONLY_THIS_PROCESS
If not set and the calling process is being debugged, the new process becomes another process being debugged by the calling process's debugger. If the calling process is not a process being debugged, no debugging-related actions occur.
DETACHED_PROCESS
For console processes, the new process does not have access to the console of the parent process. The new process can call the AllocConsole function at a later time to create a new console. This flag cannot be used with the CREATE_NEW_CONSOLE flag.
The dwCreationFlags parameter also controls the new process's priority class, which is used in determining the scheduling priorities of the process's threads. If none of the following priority class flags is specified, the priority class defaults to NORMAL_PRIORITY_CLASS unless the priority class of the creating process is IDLE_PRIORITY_CLASS. In this case the default priority class of the child process is IDLE_PRIORITY_CLASS. One of the following flags can be specified:
Priority Meaning
HIGH_PRIORITY_CLASS Indicates a process that performs time-critical tasks that must be executed immediately for it to run correctly. The threads of a high-priority class process preempt the threads of normal-priority or idle-priority class processes. An example is Windows Task List, which must respond quickly when called by the user, regardless of the load on the operating system. Use extreme care when using the high-priority class, because a high-priority class CPU-bound application can use nearly all available cycles.
IDLE_PRIORITY_CLASS Indicates a process whose threads run only when the system is idle and are preempted by the threads of any process running in a higher priority class. An example is a screen saver. The idle priority class is inherited by child processes.
NORMAL_PRIORITY_CLASS Indicates a normal process with no special scheduling needs.
REALTIME_PRIORITY_CLASS Indicates a process that has the highest possible priority. The threads of a real-time priority class process preempt the threads of all other processes, including operating system processes performing important tasks. For example, a real-time process that executes for more than a very brief interval can cause disk caches not to flush or cause the mouse to be unresponsive.
netsys2 2003-08-21
- 打赏
- 举报
dwCreationFlags
Specifies additional flags that control the priority class and the creation of the process. The following creation flags can be specified in any combination, except as noted:
Value Meaning
CREATE_DEFAULT_ERROR_MODE
The new process does not inherit the error mode of the calling process. Instead, CreateProcess gives the new process the current default error mode. An application sets the current default error mode by calling SetErrorMode.This flag is particularly useful for multi-threaded shell applications that run with hard errors disabled. The default behavior for CreateProcess is for the new process to inherit the error mode of the caller. Setting this flag changes that default behavior.
CREATE_NEW_CONSOLE
The new process has a new console, instead of inheriting the parent's console. This flag cannot be used with the DETACHED_PROCESS flag.
CREATE_NEW_PROCESS_GROUP
The new process is the root process of a new process group. The process group includes all processes that are descendants of this root process. The process identifier of the new process group is the same as the process identifier, which is returned in the lpProcessInformation parameter. Process groups are used by the GenerateConsoleCtrlEvent function to enable sending a CTRL+C or CTRL+BREAK signal to a group of console processes.
CREATE_SEPARATE_WOW_VDM
Windows NT only: This flag is valid only when starting a 16-bit Windows-based application. If set, the new process is run in a private Virtual DOS Machine (VDM). By default, all 16-bit Windows-based applications are run as threads in a single, shared VDM. The advantage of running separately is that a crash only kills the single VDM; any other programs running in distinct VDMs continue to function normally. Also, 16-bit Windows-based applications that are run in separate VDMs have separate input queues. That means that if one application hangs momentarily, applications in separate VDMs continue to receive input.
CREATE_SHARED_WOW_VDM
Windows NT only: The flag is valid only when starting a 16-bit Windows-based application. If the DefaultSeparateVDM switch in the Windows section of WIN.INI is TRUE, this flag causes the CreateProcess function to override the switch and run the new process in the shared Virtual DOS Machine.
CREATE_SUSPENDED
The primary thread of the new process is created in a suspended state, and does not run until the ResumeThread function is called.
CREATE_UNICODE_ENVIRONMENT
If set, the environment block pointed to by lpEnvironment uses Unicode characters. If clear, the environment block uses ANSI characters.
DEBUG_PROCESS
If this flag is set, the calling process is treated as a debugger, and the new process is a process being debugged. The system notifies the debugger of all debug events that occur in the process being debugged.If you create a process with this flag set, only the calling thread (the thread that called CreateProcess) can call the WaitForDebugEvent function.
DEBUG_ONLY_THIS_PROCESS
If not set and the calling process is being debugged, the new process becomes another process being debugged by the calling process's debugger. If the calling process is not a process being debugged, no debugging-related actions occur.
DETACHED_PROCESS
For console processes, the new process does not have access to the console of the parent process. The new process can call the AllocConsole function at a later time to create a new console. This flag cannot be used with the CREATE_NEW_CONSOLE flag.
The dwCreationFlags parameter also controls the new process's priority class, which is used in determining the scheduling priorities of the process's threads. If none of the following priority class flags is specified, the priority class defaults to NORMAL_PRIORITY_CLASS unless the priority class of the creating process is IDLE_PRIORITY_CLASS. In this case the default priority class of the child process is IDLE_PRIORITY_CLASS. One of the following flags can be specified:
Priority Meaning
HIGH_PRIORITY_CLASS Indicates a process that performs time-critical tasks that must be executed immediately for it to run correctly. The threads of a high-priority class process preempt the threads of normal-priority or idle-priority class processes. An example is Windows Task List, which must respond quickly when called by the user, regardless of the load on the operating system. Use extreme care when using the high-priority class, because a high-priority class CPU-bound application can use nearly all available cycles.
IDLE_PRIORITY_CLASS Indicates a process whose threads run only when the system is idle and are preempted by the threads of any process running in a higher priority class. An example is a screen saver. The idle priority class is inherited by child processes.
NORMAL_PRIORITY_CLASS Indicates a normal process with no special scheduling needs.
REALTIME_PRIORITY_CLASS Indicates a process that has the highest possible priority. The threads of a real-time priority class process preempt the threads of all other processes, including operating system processes performing important tasks. For example, a real-time process that executes for more than a very brief interval can cause disk caches not to flush or cause the mouse to be unresponsive.
Specifies additional flags that control the priority class and the creation of the process. The following creation flags can be specified in any combination, except as noted:
Value Meaning
CREATE_DEFAULT_ERROR_MODE
The new process does not inherit the error mode of the calling process. Instead, CreateProcess gives the new process the current default error mode. An application sets the current default error mode by calling SetErrorMode.This flag is particularly useful for multi-threaded shell applications that run with hard errors disabled. The default behavior for CreateProcess is for the new process to inherit the error mode of the caller. Setting this flag changes that default behavior.
CREATE_NEW_CONSOLE
The new process has a new console, instead of inheriting the parent's console. This flag cannot be used with the DETACHED_PROCESS flag.
CREATE_NEW_PROCESS_GROUP
The new process is the root process of a new process group. The process group includes all processes that are descendants of this root process. The process identifier of the new process group is the same as the process identifier, which is returned in the lpProcessInformation parameter. Process groups are used by the GenerateConsoleCtrlEvent function to enable sending a CTRL+C or CTRL+BREAK signal to a group of console processes.
CREATE_SEPARATE_WOW_VDM
Windows NT only: This flag is valid only when starting a 16-bit Windows-based application. If set, the new process is run in a private Virtual DOS Machine (VDM). By default, all 16-bit Windows-based applications are run as threads in a single, shared VDM. The advantage of running separately is that a crash only kills the single VDM; any other programs running in distinct VDMs continue to function normally. Also, 16-bit Windows-based applications that are run in separate VDMs have separate input queues. That means that if one application hangs momentarily, applications in separate VDMs continue to receive input.
CREATE_SHARED_WOW_VDM
Windows NT only: The flag is valid only when starting a 16-bit Windows-based application. If the DefaultSeparateVDM switch in the Windows section of WIN.INI is TRUE, this flag causes the CreateProcess function to override the switch and run the new process in the shared Virtual DOS Machine.
CREATE_SUSPENDED
The primary thread of the new process is created in a suspended state, and does not run until the ResumeThread function is called.
CREATE_UNICODE_ENVIRONMENT
If set, the environment block pointed to by lpEnvironment uses Unicode characters. If clear, the environment block uses ANSI characters.
DEBUG_PROCESS
If this flag is set, the calling process is treated as a debugger, and the new process is a process being debugged. The system notifies the debugger of all debug events that occur in the process being debugged.If you create a process with this flag set, only the calling thread (the thread that called CreateProcess) can call the WaitForDebugEvent function.
DEBUG_ONLY_THIS_PROCESS
If not set and the calling process is being debugged, the new process becomes another process being debugged by the calling process's debugger. If the calling process is not a process being debugged, no debugging-related actions occur.
DETACHED_PROCESS
For console processes, the new process does not have access to the console of the parent process. The new process can call the AllocConsole function at a later time to create a new console. This flag cannot be used with the CREATE_NEW_CONSOLE flag.
The dwCreationFlags parameter also controls the new process's priority class, which is used in determining the scheduling priorities of the process's threads. If none of the following priority class flags is specified, the priority class defaults to NORMAL_PRIORITY_CLASS unless the priority class of the creating process is IDLE_PRIORITY_CLASS. In this case the default priority class of the child process is IDLE_PRIORITY_CLASS. One of the following flags can be specified:
Priority Meaning
HIGH_PRIORITY_CLASS Indicates a process that performs time-critical tasks that must be executed immediately for it to run correctly. The threads of a high-priority class process preempt the threads of normal-priority or idle-priority class processes. An example is Windows Task List, which must respond quickly when called by the user, regardless of the load on the operating system. Use extreme care when using the high-priority class, because a high-priority class CPU-bound application can use nearly all available cycles.
IDLE_PRIORITY_CLASS Indicates a process whose threads run only when the system is idle and are preempted by the threads of any process running in a higher priority class. An example is a screen saver. The idle priority class is inherited by child processes.
NORMAL_PRIORITY_CLASS Indicates a normal process with no special scheduling needs.
REALTIME_PRIORITY_CLASS Indicates a process that has the highest possible priority. The threads of a real-time priority class process preempt the threads of all other processes, including operating system processes performing important tasks. For example, a real-time process that executes for more than a very brief interval can cause disk caches not to flush or cause the mouse to be unresponsive.
netsys2 2003-08-21
- 打赏
- 举报
Parameters
lpApplicationName
Pointer to a null-terminated string that specifies the module to execute.
The string can specify the full path and filename of the module to execute.
The string can specify a partial name. In that case, the function uses the current drive and current directory to complete the specification.
The lpApplicationName parameter can be NULL. In that case, the module name must be the first white space-delimited token in the lpCommandLine string.
The specified module can be a Win32-based application. It can be some other type of module (for example, MS-DOS or OS/2) if the appropriate subsystem is available on the local computer.
Windows NT: If the executable module is a 16-bit application, lpApplicationName should be NULL, and the string pointed to by lpCommandLine should specify the executable module. A 16-bit application is one that executes as a VDM or WOW process.
lpCommandLine
Pointer to a null-terminated string that specifies the command line to execute.
The lpCommandLine parameter can be NULL. In that case, the function uses the string pointed to by lpApplicationName as the command line.
If both lpApplicationName and lpCommandLine are non-NULL, *lpApplicationName specifies the module to execute, and *lpCommandLine specifies the command line. The new process can use GetCommandLine to retrieve the entire command line. C runtime processes can use the argc and argv arguments.
If lpApplicationName is NULL, the first white space-delimited token of the command line specifies the module name. If the filename does not contain an extension, .EXE is assumed. If the filename ends in a period (.) with no extension, or the filename contains a path, .EXE is not appended. If the filename does not contain a directory path, Windows searches for the executable file in the following sequence:
1. The directory from which the application loaded.
2. The current directory for the parent process.
3. Windows 95: The Windows system directory. Use the GetSystemDirectory function to get the path of this directory.
Windows NT: The 32-bit Windows system directory. Use the GetSystemDirectory function to get the path of this directory. The name of this directory is SYSTEM32.
4. Windows NT: The 16-bit Windows system directory. There is no Win32 function that obtains the path of this directory, but it is searched. The name of this directory is SYSTEM.
5. The Windows directory. Use the GetWindowsDirectory function to get the path of this directory.
6. The directories that are listed in the PATH environment variable.
If the process to be created is an MS-DOS - based or Windows-based application, lpCommandLine should be a full command line in which the first element is the application name. Because this also works well for Win32-based applications, it is the most robust way to set lpCommandLine.
lpProcessAttributes
Pointer to a SECURITY_ATTRIBUTES structure that determines whether the returned handle can be inherited by child processes. If lpProcessAttributes is NULL, the handle cannot be inherited.
Windows NT: The lpSecurityDescriptor member of the structure specifies a security descriptor for the new process. If lpProcessAttributes is NULL, the process gets a default security descriptor.
Windows 95: The lpSecurityDescriptor member of the structure is ignored.
lpThreadAttributes
Pointer to a SECURITY_ATTRIBUTES structure that determines whether the returned handle can be inherited by child processes. If lpThreadAttributes is NULL, the handle cannot be inherited.
Windows NT: The lpSecurityDescriptor member of the structure specifies a security descriptor for the main thread. If lpThreadAttributes is NULL, the thread gets a default security descriptor.
Windows 95: The lpSecurityDescriptor member of the structure is ignored.
bInheritHandles
Indicates whether the new process inherits handles from the calling process. If TRUE, each inheritable open handle in the calling process is inherited by the new process. Inherited handles have the same value and access privileges as the original handles.
lpApplicationName
Pointer to a null-terminated string that specifies the module to execute.
The string can specify the full path and filename of the module to execute.
The string can specify a partial name. In that case, the function uses the current drive and current directory to complete the specification.
The lpApplicationName parameter can be NULL. In that case, the module name must be the first white space-delimited token in the lpCommandLine string.
The specified module can be a Win32-based application. It can be some other type of module (for example, MS-DOS or OS/2) if the appropriate subsystem is available on the local computer.
Windows NT: If the executable module is a 16-bit application, lpApplicationName should be NULL, and the string pointed to by lpCommandLine should specify the executable module. A 16-bit application is one that executes as a VDM or WOW process.
lpCommandLine
Pointer to a null-terminated string that specifies the command line to execute.
The lpCommandLine parameter can be NULL. In that case, the function uses the string pointed to by lpApplicationName as the command line.
If both lpApplicationName and lpCommandLine are non-NULL, *lpApplicationName specifies the module to execute, and *lpCommandLine specifies the command line. The new process can use GetCommandLine to retrieve the entire command line. C runtime processes can use the argc and argv arguments.
If lpApplicationName is NULL, the first white space-delimited token of the command line specifies the module name. If the filename does not contain an extension, .EXE is assumed. If the filename ends in a period (.) with no extension, or the filename contains a path, .EXE is not appended. If the filename does not contain a directory path, Windows searches for the executable file in the following sequence:
1. The directory from which the application loaded.
2. The current directory for the parent process.
3. Windows 95: The Windows system directory. Use the GetSystemDirectory function to get the path of this directory.
Windows NT: The 32-bit Windows system directory. Use the GetSystemDirectory function to get the path of this directory. The name of this directory is SYSTEM32.
4. Windows NT: The 16-bit Windows system directory. There is no Win32 function that obtains the path of this directory, but it is searched. The name of this directory is SYSTEM.
5. The Windows directory. Use the GetWindowsDirectory function to get the path of this directory.
6. The directories that are listed in the PATH environment variable.
If the process to be created is an MS-DOS - based or Windows-based application, lpCommandLine should be a full command line in which the first element is the application name. Because this also works well for Win32-based applications, it is the most robust way to set lpCommandLine.
lpProcessAttributes
Pointer to a SECURITY_ATTRIBUTES structure that determines whether the returned handle can be inherited by child processes. If lpProcessAttributes is NULL, the handle cannot be inherited.
Windows NT: The lpSecurityDescriptor member of the structure specifies a security descriptor for the new process. If lpProcessAttributes is NULL, the process gets a default security descriptor.
Windows 95: The lpSecurityDescriptor member of the structure is ignored.
lpThreadAttributes
Pointer to a SECURITY_ATTRIBUTES structure that determines whether the returned handle can be inherited by child processes. If lpThreadAttributes is NULL, the handle cannot be inherited.
Windows NT: The lpSecurityDescriptor member of the structure specifies a security descriptor for the main thread. If lpThreadAttributes is NULL, the thread gets a default security descriptor.
Windows 95: The lpSecurityDescriptor member of the structure is ignored.
bInheritHandles
Indicates whether the new process inherits handles from the calling process. If TRUE, each inheritable open handle in the calling process is inherited by the new process. Inherited handles have the same value and access privileges as the original handles.
Alpha_Gu 2003-08-21
- 打赏
- 举报
自己查一下sdk就行了.
猎人66 2003-08-21
- 打赏
- 举报
memset(&StartupInfo, 0, sizeof(StartupInfo));//是将StartupInfol置空
ccrun.com 2003-08-21
- 打赏
- 举报
createprocess函数的参数说明：
（1） LPCTSTR lpApplicationName
想运行的可执行文件的名字的字符串（应含扩展名）。如果找不到该文件，CreateProcess运行失败。应该设为NULL。
（2） LPTSTR lpCommandLine
传递给新进程的命令行字符串，应当为非常量字符串的地址。可以设定一个完整的命令行，如果第一个标记没有扩展名，CreateProcess将其假设为.exe。如果找不到该文件，CreateProcess按环境设置目录搜索运行。
（3） LPSECURITY_ATTRIBUTES
设定进程对象的安全性。可以为这些参数传递NULL，在这种情况下，系统为这些对象赋予默认安全性描述符。 （不明白）
（4） LPSECURITY_ATTRIBUTES lpThreadAttributes
设定线程对象的安全性。可以为这些参数传递NULL，在这种情况下，系统为这些对象赋予默认安全性描述符。 （不明白）
（5） BOOL bInheritHandles
决定子进程对父进程继承性，一般设为FALSE。
（6） DWORD dwCreationFlags
用于标识标志，以便用于规定如何来创建新进程。
标志 说明
EBUG_PROCESS 父进程想要调试子进程和子进程将来生成的任何进程。当任何子进程（被调试进程）中发生某些事件时，将情况通知父进程。 （不明白）
DEBUG_ONLY_THIS_PROCESS 与DEBUG_PROCESS标志相类似，调试程序只被告知紧靠父进程的子进程中发生的特定事件。 （不明白）
CREATE_SUSPENDED 新进程被创建，但是，它的主线程则被挂起。
DETACHED_PROCESS 阻止基于CUI的进程对它的父进程的控制台窗口的访问，并告诉系统将它的输出发送到新的控制台窗口。
CREATE_NEW_CONSOLE 为新进程创建一个新控制台窗口。如果同时设定CREATE_NEW_CONSOLE和DETACHED_PROCESS标志，就会产生一个错误。
CREATE_NO_WINDOW 不为应用程序创建任何控制台窗口。
CREATE_NEW_PROCESS_GROUP 修改用户在按下Ctrl+C或Ctrl+Break键时得到通知的进程列表。
CREATE_DEFAULT_ERROR_MODE 不继承父进程使用的错误模式。
CREATE_SEPARATE_WOW_VDM 只能当你在Windows2000上运行16位Windows应用程序时使用。告诉系统创建一个单独的DOS虚拟机（VDM），并且在该VDM中运行16位Windows应用程序。 （不明白）
CREATE_SHARED_WOW_VDM 只能当你在Windows2000上运行16位Windows应用程序时使用。在系统的共享VDM中运行16位Windows应用程序。 （不明白）
CREATE_UNICODE_ENVIRONMENT 告诉系统，子进程的环境块应该包含Unicode字符。按照默认设置，进程的环境块包含的是ANSI字符串。
CREATE_FORCEDOS 强制系统运行嵌入16位OS/2应用程序的MOS-DOS应用程序。
CREATE_BREAKAWAY_FROM_JOB 使作业中的进程生成一个与作业相关联的新进程 （不明白）。
IDLE_PRIORITY_CLASSBELOW_NORMAL_PRIORITY_CLASSNORMAL_PRIORITY_CLASSABOVE_NORMAL_PRIORITY_CLASSHIGH_PRIORITY_CLASSREALTIME_PRIORITY_CLASS 空闲低于正常（Windows2000）正常高于正常（Windows2000）高实时
对于大多数应用程序来说不应该设定优先级类。
（7） LPVOID lpEnvironment
指向包含新进程将要使用的环境字符串的内存块。在大多数情况下，为该参数传递NULL，使子进程能够继承它的父进程正在使用的一组环境字符串。也可以使用GetEnvironmentStrings函数当不再需要该内存块时，应该调用FreeEnvironmentStrings函数将内存块释放。
（8） LPCTSTR lpCurrentDirectory
设置子进程的当前驱动器和目录。如果本参数是NULL，则新进程的工作目录将与生成新进程的应用程序的目录相同。如果本参数不是NULL，那么必须指向包含需要的工作驱动器和工作目录的以0 结尾的字符串。注意，必须设定路径中的驱动器名。
（9） LPSTARTUPINFO lpStartupInfo
使用时应首先进行初始化。
成员 窗口/控制台 作用
cb 两者兼有 用作版本控制手段。必须初始化为sizeof(STARTUPINFO)
lpReserved 两者兼有 保留。必须初始化为NULL （不为NULL也可以）
lpDesktop 两者兼有 标识启动应用程序所在桌面的名字。如果桌面不存在，便创建一个带有默认属性的桌面，并使用为新进程指定的名字。其值为NULL时，与当前桌面相关联。 （不明白）
lpTitle 控制台 设定控制台窗口的名称。其值为NULL，则把可执行文件的名字用作窗口名。
dwXdwY 两者兼有 设定应用程序窗口在屏幕上的位置（以像素为单位）。只有当子进程用CW_USEDEFAULT作为CreateWindow的x参数来创建它的第一个重叠窗口时，才使用这两个坐标。
dwXSizedwYsize 两者兼有 设定应用程序窗口的宽度和长度（以像素为单位）只有当子进程将CW_USEDEFAULT用作CreateWindow的nWidth参数来创建它的第一个重叠窗口时，才使用这些值。
dwXCountCharsdwYCountChars 控制台 设定子应用程序的控制台窗口的宽度和高度（以字符为单位）
dwFillAttribute 控制台 设定控制台窗口的文本和背景颜色
dwFlags 两者兼有 后面以表格说明。
wShowWindow 窗口 设定如果子应用程序初次调用的ShowWindow将SW_SHOWDEFAULT作为nCmdShow参数传递时，该应用程序的第一个重叠窗口应该如何出现。
cbReserved2 两者兼有 保留。必须被初始化为0 （非0也可以）
lpReserved2 两者兼有 保留。必须被初始化为NULL （为什么）
hStdInputhStdOutputhStdError 控制台 设定控制台输入输出缓存的句柄。照默hStdInput标识键盘缓存，hStdOutput和hStdError标识控制台窗口缓存。
dwFlags使用方法：
标志 含义
STARTF_USESIZE 使用dwXSize和dwYSize成员
STARTF_USESHOWWINDOW 使用wShowWindow成员
STARTF_USEPOSITION 使用dwX和dwY成员
STARTF_USECOUNTCHARS 使用dwXCountChars和dwYCountChars成员
STARTF_USEFILLATTRIBUTE 使用dwFillAttribute成员
STARTF_USESTDHANDLES 使用hStdInput、hStdOutput和hStdError成员
STARTF_RUN_FULLSCREEN 强制在x86计算机上运行的控制台应用程序以全屏幕方式运行
STARTF_FORCEONFEEDBACK 启动进程时，临时将系统的箭头光标改为沙漏箭头光标。
STARTF_FORCEOFFFEEDBACK 启动进程时，不将光标改为沙漏。
（10） LPPROCESS_INFORMATION lpProcessInformation
新进程的返回信息。hProcess为新进程内核对象的句柄；hThread为新线程内核对象的句柄。在使用后应当用CloseHandle释放，使该内核的使用计数减一。dwProcessId新进程ID号；dwThreadId新线程ID号。0不能为ID号。虽然系统不会同时有相同的ID号，但是当一个进程的内核句柄被释放后其ID号又可能被新的进程使用。若要确保进程ID或线程ID不被重复使用，唯一的方法是保证进程或线程的内核对象不会被撤消。如果刚刚创建了一个新进程或线程，只要不关闭这些对象的句柄，就能够保证进程对象不被撤消。一旦应用程序结束使用该ID，那么调用CloseHandle就可以释放内核对象，要记住，这时使用或依赖进程ID，对来说将不再安全。如果使用的是子进程，将无法保证父进程或父线程的有效性，除非父进程复制了它自己的进程对象或线程对象的句柄，并让子进程继承这些句柄。
（1） LPCTSTR lpApplicationName
想运行的可执行文件的名字的字符串（应含扩展名）。如果找不到该文件，CreateProcess运行失败。应该设为NULL。
（2） LPTSTR lpCommandLine
传递给新进程的命令行字符串，应当为非常量字符串的地址。可以设定一个完整的命令行，如果第一个标记没有扩展名，CreateProcess将其假设为.exe。如果找不到该文件，CreateProcess按环境设置目录搜索运行。
（3） LPSECURITY_ATTRIBUTES
设定进程对象的安全性。可以为这些参数传递NULL，在这种情况下，系统为这些对象赋予默认安全性描述符。 （不明白）
（4） LPSECURITY_ATTRIBUTES lpThreadAttributes
设定线程对象的安全性。可以为这些参数传递NULL，在这种情况下，系统为这些对象赋予默认安全性描述符。 （不明白）
（5） BOOL bInheritHandles
决定子进程对父进程继承性，一般设为FALSE。
（6） DWORD dwCreationFlags
用于标识标志，以便用于规定如何来创建新进程。
标志 说明
EBUG_PROCESS 父进程想要调试子进程和子进程将来生成的任何进程。当任何子进程（被调试进程）中发生某些事件时，将情况通知父进程。 （不明白）
DEBUG_ONLY_THIS_PROCESS 与DEBUG_PROCESS标志相类似，调试程序只被告知紧靠父进程的子进程中发生的特定事件。 （不明白）
CREATE_SUSPENDED 新进程被创建，但是，它的主线程则被挂起。
DETACHED_PROCESS 阻止基于CUI的进程对它的父进程的控制台窗口的访问，并告诉系统将它的输出发送到新的控制台窗口。
CREATE_NEW_CONSOLE 为新进程创建一个新控制台窗口。如果同时设定CREATE_NEW_CONSOLE和DETACHED_PROCESS标志，就会产生一个错误。
CREATE_NO_WINDOW 不为应用程序创建任何控制台窗口。
CREATE_NEW_PROCESS_GROUP 修改用户在按下Ctrl+C或Ctrl+Break键时得到通知的进程列表。
CREATE_DEFAULT_ERROR_MODE 不继承父进程使用的错误模式。
CREATE_SEPARATE_WOW_VDM 只能当你在Windows2000上运行16位Windows应用程序时使用。告诉系统创建一个单独的DOS虚拟机（VDM），并且在该VDM中运行16位Windows应用程序。 （不明白）
CREATE_SHARED_WOW_VDM 只能当你在Windows2000上运行16位Windows应用程序时使用。在系统的共享VDM中运行16位Windows应用程序。 （不明白）
CREATE_UNICODE_ENVIRONMENT 告诉系统，子进程的环境块应该包含Unicode字符。按照默认设置，进程的环境块包含的是ANSI字符串。
CREATE_FORCEDOS 强制系统运行嵌入16位OS/2应用程序的MOS-DOS应用程序。
CREATE_BREAKAWAY_FROM_JOB 使作业中的进程生成一个与作业相关联的新进程 （不明白）。
IDLE_PRIORITY_CLASSBELOW_NORMAL_PRIORITY_CLASSNORMAL_PRIORITY_CLASSABOVE_NORMAL_PRIORITY_CLASSHIGH_PRIORITY_CLASSREALTIME_PRIORITY_CLASS 空闲低于正常（Windows2000）正常高于正常（Windows2000）高实时
对于大多数应用程序来说不应该设定优先级类。
（7） LPVOID lpEnvironment
指向包含新进程将要使用的环境字符串的内存块。在大多数情况下，为该参数传递NULL，使子进程能够继承它的父进程正在使用的一组环境字符串。也可以使用GetEnvironmentStrings函数当不再需要该内存块时，应该调用FreeEnvironmentStrings函数将内存块释放。
（8） LPCTSTR lpCurrentDirectory
设置子进程的当前驱动器和目录。如果本参数是NULL，则新进程的工作目录将与生成新进程的应用程序的目录相同。如果本参数不是NULL，那么必须指向包含需要的工作驱动器和工作目录的以0 结尾的字符串。注意，必须设定路径中的驱动器名。
（9） LPSTARTUPINFO lpStartupInfo
使用时应首先进行初始化。
成员 窗口/控制台 作用
cb 两者兼有 用作版本控制手段。必须初始化为sizeof(STARTUPINFO)
lpReserved 两者兼有 保留。必须初始化为NULL （不为NULL也可以）
lpDesktop 两者兼有 标识启动应用程序所在桌面的名字。如果桌面不存在，便创建一个带有默认属性的桌面，并使用为新进程指定的名字。其值为NULL时，与当前桌面相关联。 （不明白）
lpTitle 控制台 设定控制台窗口的名称。其值为NULL，则把可执行文件的名字用作窗口名。
dwXdwY 两者兼有 设定应用程序窗口在屏幕上的位置（以像素为单位）。只有当子进程用CW_USEDEFAULT作为CreateWindow的x参数来创建它的第一个重叠窗口时，才使用这两个坐标。
dwXSizedwYsize 两者兼有 设定应用程序窗口的宽度和长度（以像素为单位）只有当子进程将CW_USEDEFAULT用作CreateWindow的nWidth参数来创建它的第一个重叠窗口时，才使用这些值。
dwXCountCharsdwYCountChars 控制台 设定子应用程序的控制台窗口的宽度和高度（以字符为单位）
dwFillAttribute 控制台 设定控制台窗口的文本和背景颜色
dwFlags 两者兼有 后面以表格说明。
wShowWindow 窗口 设定如果子应用程序初次调用的ShowWindow将SW_SHOWDEFAULT作为nCmdShow参数传递时，该应用程序的第一个重叠窗口应该如何出现。
cbReserved2 两者兼有 保留。必须被初始化为0 （非0也可以）
lpReserved2 两者兼有 保留。必须被初始化为NULL （为什么）
hStdInputhStdOutputhStdError 控制台 设定控制台输入输出缓存的句柄。照默hStdInput标识键盘缓存，hStdOutput和hStdError标识控制台窗口缓存。
dwFlags使用方法：
标志 含义
STARTF_USESIZE 使用dwXSize和dwYSize成员
STARTF_USESHOWWINDOW 使用wShowWindow成员
STARTF_USEPOSITION 使用dwX和dwY成员
STARTF_USECOUNTCHARS 使用dwXCountChars和dwYCountChars成员
STARTF_USEFILLATTRIBUTE 使用dwFillAttribute成员
STARTF_USESTDHANDLES 使用hStdInput、hStdOutput和hStdError成员
STARTF_RUN_FULLSCREEN 强制在x86计算机上运行的控制台应用程序以全屏幕方式运行
STARTF_FORCEONFEEDBACK 启动进程时，临时将系统的箭头光标改为沙漏箭头光标。
STARTF_FORCEOFFFEEDBACK 启动进程时，不将光标改为沙漏。
（10） LPPROCESS_INFORMATION lpProcessInformation
新进程的返回信息。hProcess为新进程内核对象的句柄；hThread为新线程内核对象的句柄。在使用后应当用CloseHandle释放，使该内核的使用计数减一。dwProcessId新进程ID号；dwThreadId新线程ID号。0不能为ID号。虽然系统不会同时有相同的ID号，但是当一个进程的内核句柄被释放后其ID号又可能被新的进程使用。若要确保进程ID或线程ID不被重复使用，唯一的方法是保证进程或线程的内核对象不会被撤消。如果刚刚创建了一个新进程或线程，只要不关闭这些对象的句柄，就能够保证进程对象不被撤消。一旦应用程序结束使用该ID，那么调用CloseHandle就可以释放内核对象，要记住，这时使用或依赖进程ID，对来说将不再安全。如果使用的是子进程，将无法保证父进程或父线程的有效性，除非父进程复制了它自己的进程对象或线程对象的句柄，并让子进程继承这些句柄。
