虚拟设备(包括鼠标和键盘)

爱民

1. 
   
2. #include "stdafx.h"
   
3. #include <windows.h>
   
4. #include <vector>
   
5. #include <setupapi.h>
   
6. #include "c:\ntddk\inc\newdev.h"
   
7. 
   
8. #pragma comment(lib , "C:\\NTDDK\\libchk\\i386\\newdev.lib")
   
9. #pragma comment(lib , "Setupapi.lib")
   
10. 
    
11. using namespace std;
    
12. 
    
13. ///////////////////////////////////////////////////////////////////////////
    
14. 
    
15. //GUID_CLASS_KEYBOARD
    
16. GUID KeyboardClass = {0x4D36E96B,0xE325,0x11CE,0xBF,0xC1,0x08,0x00,0x2B,0xE1,0x03,0x18};
    
17. 
    
18. // Hardware ID
    
19. #define HardwareIDs "VKeyboard\0\0"
    
20. #define DeviceName "Virtual Keyboard"
    
21. 
    
22. int DisplayMsg(LPCTSTR msg)
    
23. {
    
24. return MessageBox(0,msg,"Message",MB_OK);
    
25. }
    
26. 
    
27. BOOL FindExistingDevice()
    
28. {
    
29. HDEVINFO DeviceInfoSet = SetupDiGetClassDevs(0,0,0,DIGCF_ALLCLASSES|DIGCF_PRESENT|DIGCF_PROFILE);
    
30. if (DeviceInfoSet == INVALID_HANDLE_VALUE)
    
31. {
    
32. return false;
    
33. }
    
34. 
    
35. bool Found = false;
    
36. 
    
37. SP_DEVINFO_DATA DeviceInfoData;
    
38. DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
    
39. 
    
40. for (DWORD i=0;SetupDiEnumDeviceInfo(DeviceInfoSet,i,&DeviceInfoData);i++)
    
41. {
    
42. char buf[10240] = {0};
    
43. DWORD buffersize = sizeof(buf);
    
44. DWORD DataT = 0;
    
45. 
    
46. if(!SetupDiGetDeviceRegistryProperty(DeviceInfoSet,&DeviceInfoData,
    
47. SPDRP_HARDWAREID,
    
48. &DataT,
    
49. (PBYTE)buf,
    
50. buffersize,
    
51. &buffersize))
    
52. {
    
53. continue;
    
54. }
    
55. 
    
56. for (char* p=buf;*p;p++)
    
57. {
    
58. if (strcmp(HardwareIDs,p) == 0)
    
59. {
    
60. Found = true;
    
61. break;
    
62. }
    
63. for(;*p;p++);
    
64. }
    
65. 
    
66. if (Found)
    
67. {
    
68. break;
    
69. }
    
70. }
    
71. 
    
72. SetupDiDestroyDeviceInfoList(DeviceInfoSet);
    
73. 
    
74. return Found;
    
75. }
    
76. 
    
77. int IsFileExist(LPCTSTR filename)
    
78. {
    
79. WIN32_FIND_DATA FindFileData;
    
80. HANDLE hFind = FindFirstFile(filename, &FindFileData);
    
81. if(hFind == INVALID_HANDLE_VALUE)
    
82. {
    
83. return false;
    
84. }
    
85. 
    
86. FindClose(hFind);
    
87. 
    
88. return true;
    
89. }
    
90. 
    
91. int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
    
92. {
    
93. if(FindExistingDevice())
    
94. {
    
95. DisplayMsg("Virtual Keyboard already installed");
    
96. return 0;
    
97. }
    
98. 
    
99. char FileName[MAX_PATH];
    
100. GetModuleFileName(hInstance,FileName,sizeof(FileName));
     
101. 
     
102. char Drive[MAX_PATH],Path[MAX_PATH];
     
103. _splitpath(FileName,Drive,Path,0,0);
     
104. 
     
105. char infile[MAX_PATH];
     
106. char sysfile[MAX_PATH];
     
107. _makepath(infile,Drive,Path,"keyfdo",".inf");
     
108. _makepath(sysfile,Drive,Path,"VKeyFdo",".sys");
     
109. 
     
110. if(!IsFileExist(infile))
     
111. {
     
112. DisplayMsg("Can't find .INF file");
     
113. return 0;
     
114. }
     
115. 
     
116. if(!IsFileExist(sysfile))
     
117. {
     
118. DisplayMsg("Can't find .SYS file");
     
119. return 0;
     
120. }
     
121. 
     
122. HDEVINFO top;
     
123. top=SetupDiCreateDeviceInfoList(&KeyboardClass,NULL);
     
124. if (top == INVALID_HANDLE_VALUE)
     
125. {
     
126. DisplayMsg("Can't get device infolist");
     
127. return 0;
     
128. }
     
129. 
     
130. SP_DEVINFO_DATA dev;
     
131. dev.cbSize=sizeof(SP_DEVINFO_DATA);
     
132. int status=SetupDiCreateDeviceInfo(top, DeviceName, &KeyboardClass,
     
133. DeviceName,
     
134. NULL, DICD_GENERATE_ID, &dev);
     
135. 
     
136. if(!status)
     
137. {
     
138. DisplayMsg("Can't create device");
     
139. return 0;
     
140. }
     
141. 
     
142. status=SetupDiRegisterDeviceInfo(top,&dev,0,NULL,NULL,NULL);
     
143. 
     
144. if(!status)
     
145. {
     
146. DisplayMsg("Can't register device");
     
147. return 0;
     
148. }
     
149. 
     
150. unsigned char idstr[256] = {0};
     
151. memcpy(idstr,HardwareIDs,sizeof(idstr));
     
152. status=SetupDiSetDeviceRegistryProperty(top, &dev, SPDRP_HARDWAREID,idstr, sizeof(idstr));
     
153. 
     
154. if(!status)
     
155. {
     
156. DisplayMsg("Can't set device HardwareID");
     
157. return 0;
     
158. }
     
159. 
     
160. SetupDiDestroyDeviceInfoList(top);
     
161. 
     
162. int RebootRequired;
     
163. status=UpdateDriverForPlugAndPlayDevices(GetDesktopWindow(),(LPCTSTR)idstr,infile,0,&RebootRequired);
     
164. 
     
165. return 0;
     
166. }
     

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xdnice

老大。。建议加上点注释。。如果能说明功能的实现就更好了。

shenzengquan

是的这样太笼统了