Python窗体操作函数

# coding=utf-8
import win32con
import win32api
import win32gui
import win32ui
from ctypes import *
from ctypes import wintypesGetForegroundWindow = windll.user32.GetForegroundWindow
GetWindowRect = windll.user32.GetWindowRect
SetForegroundWindow = windll.user32.SetForegroundWindow
GetWindowText = windll.user32.GetWindowTextA
MoveWindow = windll.user32.MoveWindow
EnumWindows = windll.user32.EnumWindowsclass RECT(Structure):
_fields_ = [
('left', c_long),
('top', c_long),
('right', c_long),
('bottom', c_long)
]class POINT(Structure):
_fields_ = [
('x', c_long),
('y', c_long),
]class FormControl(object):
def __init__(self):
self.win_hd = None
self.win_title = '' def bindActiveWindow(self):
"""
函数功能：获取当前焦点所在窗口
"""
self.win_hd = GetForegroundWindow() def bindWindowByName(self, win_name):
"""
函数功能：根据窗体名获取窗体句柄
"""
self.win_title = win_name
pro_fun_type = CFUNCTYPE(c_bool, c_int, c_long)
pro_fun_p = pro_fun_type(self.EnumWindowsProc)
EnumWindows(pro_fun_p, None) def getWinRect(self):
"""
函数功能：获取窗体的位置和大小
"""
if self.win_hd is None:
return None
rect=RECT()
GetWindowRect(self.win_hd,byref(rect))
return rect def toScreenPos(self, x,y):
"""
函数功能：将窗体内部坐标转换为相对于显示屏的绝对坐标
"""
#未指定窗口，则结束函数
if self.win_hd is None:
return None
rect=self.getWinRect()
#指定的坐标不在窗体内，则结束函数
if x < 0 or y < 0 or x > rect.right or y > rect.bottom:
return None
pos = POINT()
pos.x = x + rect.left
pos.y = y + rect.top
return pos def toWindowPos(self,x,y):
"""
函数功能：将绝对坐标转换成相对于窗体内部坐标
"""
if self.win_hd is None:
return None
rect = self.getWinRect()
pos = POINT()
pos.x = x - rect.left
pos.y = y - rect.top
# 指定的坐标不在窗体内，则结束函数
if pos.x < 0 or pos.y < 0 or pos.x > rect.right or pos.y > rect.bottom:
return None
return pos def WindowActive(self):
"""
函数功能：将窗体置前
"""
if self.win_hd is None:
return None
SetForegroundWindow(self.win_hd) def getHWND(self):
return self.win_hd def getWinTitle(self):
"""
函数功能：获取窗体的标题
"""
if self.win_hd is None:
return None
buffer = create_string_buffer(255,'\0')
GetWindowText(self.win_hd,buffer,255)
value=buffer.value.decode('gbk')
return value def MoveTo(self,x,y):
"""
函数功能：移动窗体到指定坐标位置
"""
if self.win_hd is None:
return None
rect = self.getWinRect()
MoveWindow(self.win_hd,x,y,rect.right-rect.left,rect.bottom-rect.top,True) def WinCapture(self,path,x,y,w,h):
"""
函数功能：抓取窗体截图，并保存到文件
参 数：path 保存路径
x 截取起始x坐标（窗体内相对坐标）
y 截取起始y坐标（窗体内相对坐标）
w 截取宽度,为0则取窗体宽度
h 截取长度,为0则取窗体高度
"""
if self.win_hd is None:
return None
rect = self.getWinRect()
if w == 0:
w = rect.right - rect.left
if h == 0:
h = rect.bottom - rect.top
if x < 0 or y < 0 or (x+w) > rect.right or (y+h) > rect.bottom:
return None
self.Capture(self.win_hd,path,x,y,w,h,0) def WinCapture_Mem(self,x,y,w,h):
"""
函数功能：抓取窗体截图，并返回图像内存数据
参 数：
x 截取起始x坐标（窗体内相对坐标）
y 截取起始y坐标（窗体内相对坐标）
w 截取宽度,为0则取窗体宽度
h 截取长度,为0则取窗体高度
"""
if self.win_hd is None:
return None
rect = self.getWinRect()
if w == 0:
w = rect.right - rect.left
if h == 0:
h = rect.bottom - rect.top
if x < 0 or y < 0 or (x+w) > rect.right or (y+h) > rect.bottom:
return None
return self.Capture(self.win_hd,'',x,y,w,h,1) def Capture(self, hd, path, x, y, w, h, mode):
"""
函数功能：截图
参 数：hd 截取的窗口句柄
path 保存路径
x 截取起始x坐标（窗体内相对坐标）
y 截取起始y坐标（窗体内相对坐标）
w 截取宽度,为0则取窗体宽度
h 截取长度,为0则取窗体高度
mode 保存模式 0：保存为图片，1：返回图像字节数据
"""
# 根据窗口句柄获取窗口的设备上下文
hwndDC = win32gui.GetWindowDC(self.win_hd)
# 根据窗口的DC获取memDC
srcdc = win32ui.CreateDCFromHandle(hwndDC)
# memDC创建可兼容的DC
saveDC = srcdc.CreateCompatibleDC()
# 创建bigmap准备保存图片
saveBitMap = win32ui.CreateBitmap()
# 为bitmap开辟空间
saveBitMap.CreateCompatibleBitmap(srcdc, w, h)
# 高度saveDC，将截图保存到saveBitmap中
saveDC.SelectObject(saveBitMap)
# 截取从左上角（0，0）长宽为（w，h）的图片
saveDC.BitBlt((0, 0), (w, h), srcdc, (x, y), win32con.SRCCOPY)
if mode == 0:
saveBitMap.SaveBitmapFile(saveDC, path)
else:
signedIntsArray = saveBitMap.GetBitmapBits(True)
return signedIntsArray
# 释放内存
srcdc.DeleteDC()
saveDC.DeleteDC()
win32gui.ReleaseDC(self.win_hd,hwndDC)
win32gui.DeleteObject(saveBitMap.GetHandle()) def EnumWindowsProc(self,hwnd, lParam):
buffer = create_string_buffer(255,'\0')
GetWindowText(hwnd,buffer,255)
value=buffer.value.decode('gbk')
if value == self.win_title:
self.win_hd = hwnd
print(self.win_hd)
return False
return True

import FormApi
import timeif __name__== '__main__':
time.sleep(2)
form=FormApi.FormControl()
form.bindActiveWindow()
rect=form.getWinRect()
print("坐标:（x:%d,y:%d）,大小:(width:%d,height:%d)" % (rect.left,rect.top,rect.right-rect.left,rect.bottom-rect.top))
time.sleep(2)
form.WinCapture(r'c:\1.bmp',0,0,200,200)