📅  最后修改于: 2023-12-03 15:41:24.409000             🧑  作者: Mango
本文将介绍如何在汇编程序中创建自定义颜色的引导按钮。我们将使用NASM(Netwide Assembler)作为示例汇编语言。
引导按钮是一种非常有用的界面元素,它可以吸引用户的注意力并帮助他们导航应用程序的不同部分。使用自定义颜色可以让您的应用程序更加个性化和易于识别。
在开始编写代码之前,我们需要一个图形库。在本教程中,我们将使用Bare Bones窗口管理器(BBWM)。请确保您已经安装了BBWM,并且能够将其包含在代码中。
要创建按钮,我们需要确定按钮的大小和位置。在这个例子中,我们将创建一个黄色按钮,大小为100像素乘以50像素,位于屏幕的中心。
section .data
buttonX dd 313 ; Button X position
buttonY dd 232 ; Button Y position
buttonW dw 100 ; Button width
buttonH dw 50 ; Button height
buttonColor dd 0xFFFF00 ; Button color in RGB format (yellow)
section .text
global _start
_start:
; Create the button window
mov eax, 10 ; BBWM opcode for CreateWindow
xor ebx, ebx ; Parent window (0 = desktop)
mov ecx, buttonX ; Left position of the window
mov edx, buttonY ; Top position of the window
mov esi, buttonW ; Width of the window
mov edi, buttonH ; Height of the window
int 0x80 ; Invoke BBWM syscall
; Set the window color
mov eax, 18 ; BBWM opcode for SetColor
mov ebx, eax ; Window handle (same as returned by CreateWindow)
mov ecx, buttonColor ; RGB color to set
int 0x80 ; Invoke BBWM syscall
; Wait for the user to close the window
mov eax, 16 ; BBWM opcode for WaitForEvent
xor ebx, ebx ; Event handle (0 = all events)
int 0x80 ; Invoke BBWM syscall
现在我们已经创建了按钮,我们需要将其显示在屏幕上。我们可以使用BBWM的ShowWindow函数来完成这个任务。
section .data
buttonX dd 313 ; Button X position
buttonY dd 232 ; Button Y position
buttonW dw 100 ; Button width
buttonH dw 50 ; Button height
buttonColor dd 0xFFFF00 ; Button color in RGB format (yellow)
section .text
global _start
_start:
; Create the button window
mov eax, 10 ; BBWM opcode for CreateWindow
xor ebx, ebx ; Parent window (0 = desktop)
mov ecx, buttonX ; Left position of the window
mov edx, buttonY ; Top position of the window
mov esi, buttonW ; Width of the window
mov edi, buttonH ; Height of the window
int 0x80 ; Invoke BBWM syscall
; Set the window color
mov eax, 18 ; BBWM opcode for SetColor
mov ebx, eax ; Window handle (same as returned by CreateWindow)
mov ecx, buttonColor ; RGB color to set
int 0x80 ; Invoke BBWM syscall
; Show the button window
mov eax, 12 ; BBWM opcode for ShowWindow
mov ebx, eax ; Window handle (same as returned by CreateWindow)
int 0x80 ; Invoke BBWM syscall
; Wait for the user to close the window
mov eax, 16 ; BBWM opcode for WaitForEvent
xor ebx, ebx ; Event handle (0 = all events)
int 0x80 ; Invoke BBWM syscall
现在我们已经成功地显示了窗口,我们将处理用户单击按钮的事件。我们需要使用BBWM的WaitForEvent函数来监视事件消息。
section .data
buttonX dd 313 ; Button X position
buttonY dd 232 ; Button Y position
buttonW dw 100 ; Button width
buttonH dw 50 ; Button height
buttonColor dd 0xFFFF00 ; Button color in RGB format (yellow)
section .text
global _start
_start:
; Create the button window
mov eax, 10 ; BBWM opcode for CreateWindow
xor ebx, ebx ; Parent window (0 = desktop)
mov ecx, buttonX ; Left position of the window
mov edx, buttonY ; Top position of the window
mov esi, buttonW ; Width of the window
mov edi, buttonH ; Height of the window
int 0x80 ; Invoke BBWM syscall
; Set the window color
mov eax, 18 ; BBWM opcode for SetColor
mov ebx, eax ; Window handle (same as returned by CreateWindow)
mov ecx, buttonColor ; RGB color to set
int 0x80 ; Invoke BBWM syscall
; Show the button window
mov eax, 12 ; BBWM opcode for ShowWindow
mov ebx, eax ; Window handle (same as returned by CreateWindow)
int 0x80 ; Invoke BBWM syscall
; Wait for the user to click the button
mov eax, 16 ; BBWM opcode for WaitForEvent
xor ebx, ebx ; Event handle (0 = all events)
int 0x80 ; Invoke BBWM syscall
; Check if it was a left mouse button click
cmp [ebx + 4], 1 ; Message ID in [ebx+4], 1 = left mouse button
jz buttonClicked ; Jump to label buttonClicked if yes
; If it was not a button click, keep waiting for events
jmp _start
buttonClicked:
; Close the window and exit
mov eax, 6 ; BBWM opcode for CloseWindow
mov ebx, eax ; Window handle
int 0x80 ; Invoke BBWM syscall
mov eax, 1 ; System call for exit
xor ebx, ebx ; Return value (0 = success)
int 0x80 ; Invoke system call
在本文中,我们学习了如何在汇编程序中创建自定义颜色的引导按钮。我们使用NASM和Bare Bones窗口管理器进行了示例,但您可以将本教程中的相应代码转换为您选择的任何汇编语言和图形库。