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遇到无效指令
datarea segment x dw 1,2,3,4,5,6,7,8,9,10 y dw 1,2,3,4,5,6,7,8,9,10 z dw 10 dup (?) logic_rule dw 0dch datarea ends prognam segment assume cs:prognam,ds:datarea start: mov ax,datarea mov ds,ax mov bx,0 mov cx,10 mov dx,logic_rule next: mov ax,x[bx] shr dx,1 jc subtract add ax,y[bx] jmp short result subtract: sub ax,y[bx] result: mov z[bx],ax add bx,2 dec cx jnz next mov ah, 4ch int 21h prognam ends end start 纯DOS下通过, |
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[更新]DarkSpy V1.0.3
我这里WIN2K SP4没问题,, |
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[更新]DarkSpy V1.0.3
谢谢,希望在我这里能正常运行... |
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一段模拟子线程工作的代码的疑问[求助]
问题已经解决了,结论如下: 在子线程中,你是用cout <<"子线程开始工作...... \n"; 进行输出的,只要改成: cout<<"子线程开始工作..."<<endl; 或 printf("子线程开始工作...!\n"); 都可以正常工作。 什么原因我也不知道,突然间问题就没了 |
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怎样用api调用系统计算器
第一个最难,参见MSDN |
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怎样用api调用系统计算器
1: WinExec The WinExec function runs the specified application. This function is provided for compatibility with 16-bit Windows. Win32-based applications should use the CreateProcess function. UINT WinExec( LPCSTR lpCmdLine, // address of command line UINT uCmdShow // window style for new application ); Parameters lpCmdLine Pointer to a null-terminated character string that contains the command line (filename plus optional parameters) for the application to be executed. If the name of the executable file in the lpCmdLine parameter does not contain a directory path, the system searches for the executable file in this sequence: The directory from which the application loaded. The current directory. The Windows system directory. TheGetSystemDirectory function retrieves the path of this directory. The Windows directory. TheGetWindowsDirectory function retrieves the path of this directory. The directories listed in the PATH environment variable. uCmdShow Specifies how a Windows-based application window is to be shown and is used to supply the wShowWindow member of the STARTUPINFO parameter to the CreateProcess function. For a list of the acceptable values, see the description of the nCmdShow parameter of theShowWindow function. For a non-Windows ? based application, the PIF file, if any, for the application determines the window state. Return Values If the function succeeds, the return value is greater than 31. If the function fails, the return value is one of the following error values: Value Meaning 0 The system is out of memory or resources. ERROR_BAD_FORMAT The .EXE file is invalid (non-Win32 .EXE or error in .EXE image). ERROR_FILE_NOT_FOUND The specified file was not found. ERROR_PATH_NOT_FOUND The specified path was not found. Remarks In Win32, the WinExec function returns when the started process calls the GetMessage function or a time-out limit is reached. To avoid waiting for the time out delay, call the GetMessage function as soon as possible in any process started by a call to WinExec. See Also Processes and Threads Overview, Process and Thread Functions, CreateProcess,GetMessage,GetSystemDirectory,GetWindowsDirectory, LoadModule,ShowWindow 2: HINSTANCE ShellExecute( HWND hwnd, LPCTSTR lpOperation, LPCTSTR lpFile, LPCTSTR lpParameters, LPCTSTR lpDirectory, INT nShowCmd ); Opens or prints a specified file. Returns a value greater than 32 if successful, or an error value that is less than or equal to 32 otherwise. The following table lists the error values. The return value is cast as an HINSTANCE for backward compatibility with 16-bit Windows applications. 0 The operating system is out of memory or resources. ERROR_FILE_NOT_FOUND The specified file was not found. ERROR_PATH_NOT_FOUND The specified path was not found. ERROR_BAD_FORMAT The .exe file is invalid (non-Win32® .exe or error in .exe image). SE_ERR_ACCESSDENIED The operating system denied access to the specified file. SE_ERR_ASSOCINCOMPLETE The file name association is incomplete or invalid. SE_ERR_DDEBUSY The DDE transaction could not be completed because other DDE transactions were being processed. SE_ERR_DDEFAIL The DDE transaction failed. SE_ERR_DDETIMEOUT The DDE transaction could not be completed because the request timed out. SE_ERR_DLLNOTFOUND The specified dynamic-link library was not found. SE_ERR_FNF The specified file was not found. SE_ERR_NOASSOC There is no application associated with the given file name extension. SE_ERR_OOM There was not enough memory to complete the operation. SE_ERR_PNF The specified path was not found. SE_ERR_SHARE A sharing violation occurred. hwnd Window handle to a parent window. This window receives any message boxes that an application produces. For example, an application may report an error by producing a message box. lpOperation Address of a null-terminated string that specifies the operation to perform. The following operation strings are valid: "open" The function opens the file specified by the lpFile parameter. The file can be an executable file or a document file. It can also be a folder. "print" The function prints the file specified by lpFile. The file should be a document file. If the file is an executable file, the function opens the file, as if "open" had been specified. "explore" The function explores the folder specified by lpFile. This parameter can be NULL. In that case, the function opens the file specified by lpFile. lpFile Address of a null-terminated string that specifies the file to open or print or the folder to open or explore. The function can open an executable file or a document file. The function can print a document file. lpParameters If the lpFile parameter specifies an executable file, lpParameters is an address to a null-terminated string that specifies the parameters to be passed to the application. If lpFile specifies a document file, lpParameters should be NULL. lpDirectory Address of a null-terminated string that specifies the default directory. nShowCmd If lpFile specifies an executable file, nShowCmd specifies how the application is to be shown when it is opened. This parameter can be one of the following values: SW_HIDE Hides the window and activates another window. SW_MAXIMIZE Maximizes the specified window. SW_MINIMIZE Minimizes the specified window and activates the next top-level window in the z-order. SW_RESTORE Activates and displays the window. If the window is minimized or maximized, Windows restores it to its original size and position. An application should specify this flag when restoring a minimized window. SW_SHOW Activates the window and displays it in its current size and position. SW_SHOWDEFAULT Sets the show state based on the SW_ flag specified in theSTARTUPINFO structure passed to theCreateProcess function by the program that started the application. An application should callShowWindow with this flag to set the initial show state of its main window. SW_SHOWMAXIMIZED Activates the window and displays it as a maximized window. SW_SHOWMINIMIZED Activates the window and displays it as a minimized window. SW_SHOWMINNOACTIVE Displays the window as a minimized window. The active window remains active. SW_SHOWNA Displays the window in its current state. The active window remains active. SW_SHOWNOACTIVATE Displays a window in its most recent size and position. The active window remains active. SW_SHOWNORMAL Activates and displays a window. If the window is minimized or maximized, Windows restores it to its original size and position. An application should specify this flag when displaying the window for the first time. If lpFile specifies a document file, nShowCmd should be zero. You can use this function to open or explore a shell folder. To open a folder, use either of the following calls: ShellExecute(handle, NULL, path_to_folder, NULL, NULL, SW_SHOWNORMAL); or ShellExecute(handle, "open", path_to_folder, NULL, NULL, SW_SHOWNORMAL); To explore a folder, use the following call: ShellExecute(handle, "explore", path_to_folder, NULL, NULL, SW_SHOWNORMAL); If lpOperation is NULL, the function opens the file specified by lpFile. If lpOperation is "open" or "explore", the function will attempt to open or explore the folder. To obtain information about the application that is launched as a result of calling ShellExecute, use ShellExecuteEx. |
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