Python-监听并自动保存剪贴板图片到临时目录

檀俾九

1. #include <iostream>$ T7 ~$ |5 a4 v4 r4 h& ^  o
   
2. #include <Windows.h>0 Y: \7 w( [& H3 \
   
3. 9 S) e) h% u! r  y5 a; T
   
4. extern "C" {; `3 `( D+ ~- w( V
   
5.   __declspec(dllexport) BOOL SaveBmp(HBITMAP hBitmap, const wchar_t* FileName);2 x$ v1 W- x. e+ W2 P
   
6. }
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7. 
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8. BOOL SaveBmp(HBITMAP hBitmap, const wchar_t* FileName)
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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
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13.   int iBits;
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14.   //位图中每象素所占字节数# I& g- N! j% M) D% [3 N
    
15.   WORD wBitCount;8 n; V# W/ g5 n( `6 v$ y0 J' J% L( [
    
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 2 ~# ^. n* L  r) @, f( m
    
17.   DWORD dwPaletteSize = 0, dwBmBitsSize = 0, dwDIBSize = 0, dwWritten = 0;2 `9 |8 z% E0 g; a\" v
    
18.   //位图属性结构 3 T5 S# @! o  @1 J
    
19.   BITMAP Bitmap;
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20.   //位图文件头结构
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21.   BITMAPFILEHEADER bmfHdr;
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22.   //位图信息头结构
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23.   BITMAPINFOHEADER bi;0 a5 o- P  d6 M8 l
    
24.   //指向位图信息头结构  
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25.   LPBITMAPINFOHEADER lpbi;
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26.   //定义文件，分配内存句柄，调色板句柄 \" d! ?  C1 ]' A7 e: @- ^- x; W3 U
    
27.   HANDLE fh, hDib, hPal, hOldPal = NULL;' k0 D! j( L7 N
    
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);
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30.   iBits = GetDeviceCaps(hDC, BITSPIXEL) * GetDeviceCaps(hDC, PLANES);
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31.   DeleteDC(hDC);6 g7 K1 ]2 V, c, e& I6 @0 Z
    
32.   if (iBits <= 1) wBitCount = 1;
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33.   else if (iBits <= 4)  wBitCount = 4;
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34.   else if (iBits <= 8)  wBitCount = 8;2 ^/ e3 @( D+ o) u' i6 b3 w
    
35.   else   wBitCount = 24;. e7 _6 m- K6 E
    
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;; P7 j- ~6 J7 I/ p( ^
    
39.   bi.biHeight = Bitmap.bmHeight;) A\" `# J# A) ?& F
    
40.   bi.biPlanes = 1;# w/ B+ P8 u# R5 U
    
41.   bi.biBitCount = wBitCount;7 o' |3 Y- x' [2 U. g0 ^4 Z5 a
    
42.   bi.biCompression = BI_RGB;% T% c& Y# z$ w7 |. g8 Q
    
43.   bi.biSizeImage = 0;
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44.   bi.biXPelsPerMeter = 0;7 g1 {4 ]; m$ w, ?3 u3 h, p
    
45.   bi.biYPelsPerMeter = 0;
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46.   bi.biClrImportant = 0;
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47.   bi.biClrUsed = 0;9 b\" F7 I- L5 f2 g
    
48.   dwBmBitsSize = ((Bitmap.bmWidth * wBitCount + 31) / 32) * 4 * Bitmap.bmHeight;$ i+ O- b4 a# q# g+ z4 k8 J
    
49.   //为位图内容分配内存
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50.   hDib = GlobalAlloc(GHND, dwBmBitsSize + dwPaletteSize + sizeof(BITMAPINFOHEADER));0 n: ?6 {5 {; f
    
51.   lpbi = (LPBITMAPINFOHEADER)GlobalLock(hDib);
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52.   *lpbi = bi;
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53. - p* t0 Z$ ]3 e; e) e
    
54.   // 处理调色板  ) o! q8 V) ?2 V
    
55.   hPal = GetStockObject(DEFAULT_PALETTE);
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56.   if (hPal)% c# ^; m4 I# X8 ~0 Z
    
57.   {
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58.     hDC = ::GetDC(NULL);7 H; z4 O6 e/ E: e! ^
    
59.     hOldPal = ::SelectPalette(hDC, (HPALETTE)hPal, FALSE);
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60.     RealizePalette(hDC);
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61.   }3 Q9 L1 W0 z  ?+ z
    
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);
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64.   //恢复调色板  
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65.   if (hOldPal)
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66.   {3 U5 ^4 @+ P7 C- l. l+ f% h
    
67.     ::SelectPalette(hDC, (HPALETTE)hOldPal, TRUE);
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68.     RealizePalette(hDC);
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69.     ::ReleaseDC(NULL, hDC);. h7 @6 ^\" d4 G9 R0 n1 A/ D- D
    
70.   }3 ~. }\" B/ X* s  O* E9 k. r
    
71.   //创建位图文件  
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72.   fh = CreateFile(FileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS,
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73.           FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);! ?9 b' O; h, [% c
    
74.   if (fh == INVALID_HANDLE_VALUE)  return FALSE;: J$ n7 |( e8 P9 Q: z6 }
    
75.   // 设置位图文件头 % p* h1 I4 U2 z  {* j\" I7 k& c
    
76.   bmfHdr.bfType = 0x4D42; // "BM" / M& F6 d. l# m+ b
    
77.   dwDIBSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + dwPaletteSize + dwBmBitsSize;\" }# G: ~7 L& n\" f; _
    
78.   bmfHdr.bfSize = dwDIBSize;
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79.   bmfHdr.bfReserved1 = 0;; d* ^% w) w: p/ t1 C
    
80.   bmfHdr.bfReserved2 = 0;
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81.   bmfHdr.bfOffBits = (DWORD)sizeof(BITMAPFILEHEADER) + (DWORD)sizeof(BITMAPINFOHEADER) + dwPaletteSize;
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82.   // 写入位图文件头
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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);8 u( B7 Y5 Z0 H\" H\" h
    
86.   //清除  
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87.   GlobalUnlock(hDib);
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88.   GlobalFree(hDib);# J8 U/ ~. X4 j! `- ]
    
89.   CloseHandle(fh);. V7 W0 }' j4 W& Z
    
90. $ [- j* f) P\" k# R\" D% U5 l+ \  w
    
91.   return TRUE;
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92. }, v9 K% M6 Y5 h5 u1 x- y3 |5 Q
    

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1. #!/usr/bin/python9 u/ {. ]+ m( W6 f! S: u' ]1 y% N
   
2. # -*- coding: utf-8 -*-; E: l5 p- E' }: W
   
3. 
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4. from ctypes import windll
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5. from win32clipboard import *
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6. import tempfile2 @/ l3 j; D+ `; ^1 Y9 U, m
   
7. import os0 y9 f; a4 m6 R- E/ T
   
8. from time import sleep6 b' V6 |  ^) P1 e; y% X
   
9. 1 s5 [# o$ q; O2 A6 h* H+ z/ P% F& a+ ~
   
10. if __name__ == '__main__':\" p/ ^4 b0 O\" F
    
11.     while True:% Z2 o% L( z9 e+ S\" [, P+ z5 i
    
12.         try:; {- P% m  i/ ~/ ~
    
13.             OpenClipboard()
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14.         except Exception:
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15.             print("拒绝访问！")& }& }: D  W$ f5 X( V\" d2 D
    
16.             break
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17.         else:
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18.             if IsClipboardFormatAvailable(CF_BITMAP):
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19.                 try:
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20.                     dll = windll.LoadLibrary("./SaveBmp.dll")
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21.                 except FileNotFoundError:6 r8 M# p0 ^- x
    
22.                     print("依赖库不存在~")
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23.                 else:
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24.                     tmpfd, tempfilename = tempfile.mkstemp(suffix='.bmp')  c2 k! d  ^1 I$ h' I9 u+ |
    
25.                     os.close(tmpfd)
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27.                     hbitmap = GetClipboardData(CF_BITMAP)7 h+ U9 r; Y5 b% m  b8 D
    
28.                     dll.SaveBmp(hbitmap, tempfilename)
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29.                     print(tempfilename)
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30.                     EmptyClipboard()
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31.             CloseClipboard()
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32.             sleep(0.2)
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