參考資訊:
https://masm32.com/board/index.php
https://www.nasm.us/xdoc/2.13rc9/html/nasmdoc0.html
Windows的Timer中斷週期是基於早期系統架構,因此,最短的Timer時間間隔為15ms,因此,即使Timer設定為1ms,觸發時間依舊為15ms
main.asm
%include "c:\\nasmx\\inc\\nasmx.inc" %include "c:\\nasmx\\inc\\win32\\msvcrt.inc" %include "c:\\nasmx\\inc\\win32\\windows.inc" %include "c:\\nasmx\\inc\\win32\\user32.inc" %include "c:\\nasmx\\inc\\win32\\kernel32.inc" entry start section .data hWin dd 0 hInstance dd 0 defWndProc dd 0 CommandLine dd 0 cnt dd 0 buf times 255 db 0 fmt db "%d",0 szCaption declare(NASMX_TCHAR) NASMX_TEXT("main"),0 NASMX_ISTRUC msg, MSG NASMX_AT hwnd, NULL NASMX_AT message, NULL NASMX_AT wParam, NULL NASMX_AT lParam, NULL NASMX_AT time, NULL NASMX_ISTRUC pt, POINT NASMX_AT x, 0 NASMX_AT y, 0 NASMX_IENDSTRUC NASMX_IENDSTRUC section .text proc WndProc, dword hWnd, uint_t uMsg, dword wParam, dword lParam locals none switch dword [argv(.uMsg)] case dword WM_TIMER inc dword [cnt] invoke sprintf, buf, fmt, [cnt] invoke SetWindowText, [argv(.hWnd)], buf break case dword WM_CLOSE invoke DestroyWindow, [argv(.hWnd)] break case dword WM_DESTROY invoke KillTimer, [argv(.hWnd)], 1 invoke PostQuitMessage, 0 break default invoke CallWindowProc, [defWndProc], [argv(.hWnd)], [argv(.uMsg)], [argv(.wParam)], [argv(.lParam)] endswitch endproc proc WinMain, dword hInst, dword hPrevInst, dword CmdLine, dword CmdShow locals none invoke CreateWindowEx, WS_EX_LEFT, WC_DIALOG, szCaption, \ WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0, 300, 300, NULL, NULL, NULL, NULL mov [hWin], eax invoke SetWindowLong, [hWin], GWL_WNDPROC, WndProc mov [defWndProc], eax invoke SetTimer, [hWin], 1, 1000, NULL do invoke DispatchMessage, msg invoke GetMessage, msg, NULL, NULL, NULL while eax, !=, 0 mov eax, dword [msg + MSG.wParam] endproc proc start, dword argc, dword argv locals none invoke GetModuleHandle, NULL mov [hInstance], eax invoke GetCommandLine, NULL mov [CommandLine], eax invoke WinMain, [hInstance], NULL, [CommandLine], SW_SHOWNORMAL invoke ExitProcess, NULL endproc
Line 36~39:累加數值並且顯示在視窗標題
Line 45:不使用Timer,記得關閉Timer
Line 63:設定Timer為每秒(1000ms)觸發一次,ID=1
完成