TPrintDialogDemo 项目分析¶
项目信息¶
- 项目名称: TPrintDialogDemo
- 下载链接: TPrintDialogDemo.rar
- 分析时间: 2026-03-05
文件结构¶
TPrintDialogDemo/
├── 1.bmp
├── Extractor_Icon.ico
├── Project1.py
├── Project1.xml
├── Unit1.py
├── Unit1.pydfm
├── Unit1.sct
├── Unit1.sfm
主程序文件: Project1.py¶
from glcl import *
from Unit1 import *
def main():
Application.Initialize()
Application.Title = 'Project1'
Application.MainFormOnTaskbar = True
Application.Icon.LoadFromFile(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Extractor_Icon.ico"))
MainForm = Form1(Application)
MainForm.Show()
FreeConsole()
Application.Run()
MainForm.Free()
if __name__ == '__main__':
main()
单元文件: Unit1.py¶
import os
from glcl import *
class Form1(Form):
def __init__(self, owner):
self.Button1 = Button(self)
self.FontDialog1 = FontDialog(self)
self.PrintDialog1 = PrintDialog(self)
self.LoadProps(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Unit1.pydfm"))
self.Button1.OnClick = self.Button1Click
# 创建一个按钮用于打开打印对话框
self.print_button = Button(self)
self.print_button.Parent = self # 设置父控件为窗体
self.print_button.Caption = "Print" # 设置按钮文本
self.print_button.SetBounds(150, 80, 100, 30) # 设置按钮的位置和大小
# 为按钮设置点击事件处理程序
self.print_button.OnClick = self.open_print_dialog
def open_print_dialog(self, Sender):
# 创建打印对话框
print_dialog = PrintDialog(self)
# 显示打印对话框并检查用户是否点击了“确定”
if print_dialog.Execute():
# 用户选择了打印机并点击“确定”,可以在这里执行打印操作
# 例如,打印一条消息
Application.PrintText("Print job started with selected settings.", 10, 10, self.FontDialog1.Font)
# 这里可以添加更多的打印逻辑,例如:
# 使用指定的打印机和设置来发送实际的文档进行打印
def Button1Click(self, Sender):
# Bitmap构造函数的两个参数,宽和高,可以写0,因为是从文件加载
bitmap = Bitmap(0, 0)
# 目前打印的图像格式只能是bmp
bitmap.LoadFromFile('1.bmp')
# 第4个参数 缩放比例 从1到100,1打印的图像最大,100打印的图像最小
Application.PrintImage(bitmap, 50, 50, 1)
设计文件: Unit1.sct¶
def Button1Click(Sender):
设计文件: Unit1.sfm¶
object Form1: TForm
Left = 0
Top = 0
Caption = 'Form1'
ClientHeight = 175
ClientWidth = 300
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -15
Font.Name = 'Segoe UI'
Font.Style = []
TextHeight = 20
object Button1: TButton
Left = 16
Top = 136
Width = 75
Height = 25
Caption = #25171#21360#22270#20687
TabOrder = 0
OnClick = Button1Click
end
object PrintDialog1: TPrintDialog
Left = 16
Top = 88
end
object FontDialog1: TFontDialog
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -15
Font.Name = 'Segoe UI'
Font.Style = []
Left = 16
Top = 56
end
end
其他文件¶
- 1.bmp
- Extractor_Icon.ico
- Project1.xml
详细分析¶
功能概述¶
对话框组件演示
使用的组件¶
- Form1 (TForm)
- Button1 (TButton)
- PrintDialog1 (TPrintDialog)
- FontDialog1 (TFontDialog)
技术特点¶
- 包含4个GUI组件
- 定义2个事件处理
窗体属性¶
- caption: #25171#21360#22270#20687
- height: 175
- width: 300
代码分析¶
导入的模块: - import os - from glcl import *
定义的类: - Form1
定义的方法: - init - open_print_dialog - Button1Click
事件绑定: - self.Button1.OnClick = self.Button1Click - self.print_button.OnClick = self.open_print_dialog