Python-监听并自动保存剪贴板图片到临时目录

檀俾九

1. #include <iostream>$ B* a* }% O% j: X+ f( i6 C7 R
   
2. #include <Windows.h>
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3. 
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4. extern "C" {
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5.   __declspec(dllexport) BOOL SaveBmp(HBITMAP hBitmap, const wchar_t* FileName);\" f4 C6 \/ }6 f0 Y* Q7 L
   
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7. 
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8. BOOL SaveBmp(HBITMAP hBitmap, const wchar_t* FileName)) M2 K& W. i, w
   
9. {
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10.   //设备描述表
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11.   HDC hDC;
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12.   //当前分辨率下每象素所占字节数: M2 {* S1 l2 T2 E+ n5 ?
    
13.   int iBits;
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14.   //位图中每象素所占字节数, ?' @/ r\" F9 u. ~9 c+ M! r
    
15.   WORD wBitCount;7 y! q) N5 I: L8 E
    
16.   //定义调色板大小， 位图中像素字节大小 ，位图文件大小 ， 写入文件字节数 4 z: S2 H7 S; @% A
    
17.   DWORD dwPaletteSize = 0, dwBmBitsSize = 0, dwDIBSize = 0, dwWritten = 0;- j4 @9 M- _. g8 B  w3 P( l
    
18.   //位图属性结构 ! ^* q) C* b0 O( N  i
    
19.   BITMAP Bitmap;
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20.   //位图文件头结构& S! ]9 p1 d8 Z% `9 |* R
    
21.   BITMAPFILEHEADER bmfHdr;  }. I$ k8 r, ~, K/ D
    
22.   //位图信息头结构
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23.   BITMAPINFOHEADER bi;
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24.   //指向位图信息头结构  
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25.   LPBITMAPINFOHEADER lpbi;# j$ }( U7 G8 ^1 H3 ~7 k/ t% y3 H/ p
    
26.   //定义文件，分配内存句柄，调色板句柄
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27.   HANDLE fh, hDib, hPal, hOldPal = NULL;# J9 J  U0 D; }0 r/ ^# _
    
28.   //计算位图文件每个像素所占字节数
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29.   hDC = CreateDC(L"DISPLAY", NULL, NULL, NULL);4 {3 d0 r$ c3 p$ _- ]' z( P. H
    
30.   iBits = GetDeviceCaps(hDC, BITSPIXEL) * GetDeviceCaps(hDC, PLANES);
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31.   DeleteDC(hDC);3 E/ O. a; v' w; d
    
32.   if (iBits <= 1) wBitCount = 1;# Y- @  L0 j- M# u. V
    
33.   else if (iBits <= 4)  wBitCount = 4;4 |7 l1 m: j# ^8 W  ]
    
34.   else if (iBits <= 8)  wBitCount = 8;) r* B$ b6 _5 u# n( S  V2 G
    
35.   else   wBitCount = 24;
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36.   GetObject(hBitmap, sizeof(Bitmap), (LPSTR)&Bitmap);
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37.   bi.biSize = sizeof(BITMAPINFOHEADER);
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38.   bi.biWidth = Bitmap.bmWidth;
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39.   bi.biHeight = Bitmap.bmHeight;* O* [, N% K6 X4 R\" F. C. d
    
40.   bi.biPlanes = 1;
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41.   bi.biBitCount = wBitCount;. L3 r9 a& I# H2 k) |
    
42.   bi.biCompression = BI_RGB;
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43.   bi.biSizeImage = 0;
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44.   bi.biXPelsPerMeter = 0;
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45.   bi.biYPelsPerMeter = 0;8 r) d) p0 C$ ]! b
    
46.   bi.biClrImportant = 0;4 ~! u0 g- A8 O! p
    
47.   bi.biClrUsed = 0;
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48.   dwBmBitsSize = ((Bitmap.bmWidth * wBitCount + 31) / 32) * 4 * Bitmap.bmHeight;$ W( b) {\" h( x* k9 w+ d
    
49.   //为位图内容分配内存   \8 \! ]\" b; ~$ h\" c* \/ j, Y
    
50.   hDib = GlobalAlloc(GHND, dwBmBitsSize + dwPaletteSize + sizeof(BITMAPINFOHEADER));- n( w. s- o4 O; ^  X
    
51.   lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);! i' V7 w2 K! A5 W) y4 G- F
    
52.   *lpbi = bi;
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53. ' L+ o# Q8 G. r# X) f
    
54.   // 处理调色板  
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55.   hPal = GetStockObject(DEFAULT_PALETTE);
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56.   if (hPal)
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57.   {0 Y% Q  @  u. |
    
58.     hDC = ::GetDC(NULL);
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59.     hOldPal = ::SelectPalette(hDC, (HPALETTE)hPal, FALSE);( w# n2 m) ?: G0 X) t
    
60.     RealizePalette(hDC);\" R$ o6 m# E\" Z4 N: F& P
    
61.   }, K8 r, n5 I9 \( F- U- x* G( p
    
62.   // 获取该调色板下新的像素值
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63.   GetDIBits(hDC, hBitmap, 0, (UINT)Bitmap.bmHeight, (LPSTR)lpbi + sizeof(BITMAPINFOHEADER) + dwPaletteSize, (BITMAPINFO*)lpbi, DIB_RGB_COLORS);* Y5 R2 f4 m$ L  T8 ?8 z
    
64.   //恢复调色板  9 l2 L: w: M$ _  ]( P\" C5 u
    
65.   if (hOldPal)
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66.   {
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67.     ::SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
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68.     RealizePalette(hDC);
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69.     ::ReleaseDC(NULL, hDC);
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70.   }
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71.   //创建位图文件  
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72.   fh = CreateFile(FileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS,2 b3 i6 t$ {! `: `
    
73.           FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);; k3 n\" H0 p9 p, T1 o' b
    
74.   if (fh == INVALID_HANDLE_VALUE)  return FALSE;
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75.   // 设置位图文件头
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76.   bmfHdr.bfType = 0x4D42; // "BM" 9 p8 @1 C) e  |3 F3 x
    
77.   dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;1 U( }% k4 F\" J' l( W0 n6 m
    
78.   bmfHdr.bfSize = dwDIBSize;1 @% m( }) P: u. X- ^! X7 m4 p# p
    
79.   bmfHdr.bfReserved1 = 0;# G- X, K8 ^* l  c
    
80.   bmfHdr.bfReserved2 = 0;* j) S3 u  B8 b( q
    
81.   bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER) + (DWORD)sizeof(BITMAPINFOHEADER) + dwPaletteSize;4 j7 M7 j$ ^& B
    
82.   // 写入位图文件头 0 C2 V9 y/ H4 p8 B\" i
    
83.   WriteFile(fh, (LPSTR)&bmfHdr, sizeof(BITMAPFILEHEADER), &dwWritten, NULL);
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84.   // 写入位图文件其余内容
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85.   WriteFile(fh, (LPSTR)lpbi, dwDIBSize, &dwWritten, NULL);* t0 Y4 _$ @0 Q2 a# O! L, s
    
86.   //清除  
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87.   GlobalUnlock(hDib);
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88.   GlobalFree(hDib);
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89.   CloseHandle(fh);# _! L; ]4 j1 V
    
90. \" W* x5 t% e& q6 T; D# c3 _1 p. R3 S
    
91.   return TRUE;
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92. }
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1. #!/usr/bin/python) E. \9 l% k8 e
   
2. # -*- coding: utf-8 -*-' P/ ^) V8 P& a- t; j( f3 X
   
3. 
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4. from ctypes import windll9 [/ \( ]; U8 P1 K' J
   
5. from win32clipboard import *
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6. import tempfile
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7. import os
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8. from time import sleep. m% \3 D# u$ c0 l# c6 F4 p
   
9. 7 l3 ^4 r; ^# k* K! B
   
10. if __name__ == '__main__':
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11.     while True:! i+ G/ w! r# v+ F\" z! W
    
12.         try:
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13.             OpenClipboard()
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14.         except Exception:7 o7 C. p' k1 k8 |* l
    
15.             print("拒绝访问！")5 H- z3 o8 w( Q& X9 Q3 ?
    
16.             break8 t  N5 u& q* L1 }$ N, ]
    
17.         else:; }  Z! l) E8 U% e
    
18.             if IsClipboardFormatAvailable(CF_BITMAP):
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19.                 try:6 ]! E; I7 f6 s! C
    
20.                     dll = windll.LoadLibrary("./SaveBmp.dll")+ S2 g; ~# `- n: W2 _\" c
    
21.                 except FileNotFoundError:
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22.                     print("依赖库不存在~")
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23.                 else:) ^' _7 d& x, w' H9 |: O
    
24.                     tmpfd, tempfilename = tempfile.mkstemp(suffix='.bmp')% h4 f; x& I+ F% j1 R
    
25.                     os.close(tmpfd)( @* [* }! b8 o: i0 k/ r
    
26. 
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27.                     hbitmap = GetClipboardData(CF_BITMAP)/ g\" C* C% F\" f9 E* ^3 y
    
28.                     dll.SaveBmp(hbitmap, tempfilename)
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29.                     print(tempfilename)
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30.                     EmptyClipboard()6 L! O6 t- c% D; N
    
31.             CloseClipboard()4 [. I$ B, K6 Y2 t
    
32.             sleep(0.2), g2 z' F. ]! T5 ]& e* m4 `; i
    

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