├── KeyboardBacklight.h
├── crosecservice.vcxproj.filters
├── crosecservice.sln
├── crosecservice.cpp
├── croskbhid.h
├── KeyboardBacklight.cpp
├── .gitignore
├── crosecservice.vcxproj
└── client.cpp


/KeyboardBacklight.h:
--------------------------------------------------------------------------------
 1 | class KeyboardBacklight {
 2 | public:
 3 |     INT IdleTimeout = 5000;
 4 | 
 5 | private:
 6 |     BOOL HasKeyboardBacklight = FALSE;
 7 |     BOOL IsLaptopMode = TRUE;
 8 |     INT InternalBrightness = 100;
 9 |     INT CurrentBrightness = 100;
10 |     INT BrightnessFadeStep = 0;
11 |     INT BrightnessFadeTarget = 100;
12 |     BOOL BacklightEnabled = TRUE;
13 | 
14 |     std::thread task;
15 | 
16 |     pcroskbhid_client client;
17 | 
18 | public:
19 |     KeyboardBacklight(pcroskbhid_client client);
20 |     ~KeyboardBacklight();
21 | 
22 |     BOOL CheckIsLaptopMode();
23 |     BOOL GetBacklightEnabled();
24 |     void SetBacklightEnabled(BOOL enabled);
25 |     INT GetBrightness();
26 |     void FadeSet(INT brightness);
27 |     void BrightnessInc();
28 |     void BrightnessDec();
29 | 
30 | private:
31 |     void FadeSetInternal(INT brightness);
32 |     void FadeBrightnessStep();
33 |     void InstantlySet(INT Brightness);
34 | };


--------------------------------------------------------------------------------
/crosecservice.vcxproj.filters:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 3 |   <ItemGroup>
 4 |     <Filter Include="Source Files">
 5 |       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
 6 |       <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
 7 |     </Filter>
 8 |     <Filter Include="Header Files">
 9 |       <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
10 |       <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
11 |     </Filter>
12 |     <Filter Include="Resource Files">
13 |       <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
14 |       <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
15 |     </Filter>
16 |   </ItemGroup>
17 |   <ItemGroup>
18 |     <ClCompile Include="crosecservice.cpp">
19 |       <Filter>Source Files</Filter>
20 |     </ClCompile>
21 |     <ClCompile Include="client.cpp">
22 |       <Filter>Source Files</Filter>
23 |     </ClCompile>
24 |     <ClCompile Include="KeyboardBacklight.cpp">
25 |       <Filter>Source Files</Filter>
26 |     </ClCompile>
27 |   </ItemGroup>
28 |   <ItemGroup>
29 |     <ClInclude Include="croskbhid.h">
30 |       <Filter>Header Files</Filter>
31 |     </ClInclude>
32 |     <ClInclude Include="KeyboardBacklight.h">
33 |       <Filter>Header Files</Filter>
34 |     </ClInclude>
35 |   </ItemGroup>
36 | </Project>


--------------------------------------------------------------------------------
/crosecservice.sln:
--------------------------------------------------------------------------------
 1 | 
 2 | Microsoft Visual Studio Solution File, Format Version 12.00
 3 | # Visual Studio Version 16
 4 | VisualStudioVersion = 16.0.31829.152
 5 | MinimumVisualStudioVersion = 10.0.40219.1
 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "crosecservice", "crosecservice.vcxproj", "{25357B70-BB72-4B8E-9334-19F6BA5999BB}"
 7 | EndProject
 8 | Global
 9 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
10 | 		Debug|x64 = Debug|x64
11 | 		Debug|x86 = Debug|x86
12 | 		Release|x64 = Release|x64
13 | 		Release|x86 = Release|x86
14 | 	EndGlobalSection
15 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
16 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Debug|x64.ActiveCfg = Debug|x64
17 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Debug|x64.Build.0 = Debug|x64
18 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Debug|x86.ActiveCfg = Debug|Win32
19 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Debug|x86.Build.0 = Debug|Win32
20 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Release|x64.ActiveCfg = Release|x64
21 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Release|x64.Build.0 = Release|x64
22 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Release|x86.ActiveCfg = Release|Win32
23 | 		{25357B70-BB72-4B8E-9334-19F6BA5999BB}.Release|x86.Build.0 = Release|Win32
24 | 	EndGlobalSection
25 | 	GlobalSection(SolutionProperties) = preSolution
26 | 		HideSolutionNode = FALSE
27 | 	EndGlobalSection
28 | 	GlobalSection(ExtensibilityGlobals) = postSolution
29 | 		SolutionGuid = {4F0E98D9-AC19-42AB-B6E9-EF9F9261E0A2}
30 | 	EndGlobalSection
31 | EndGlobal
32 | 


--------------------------------------------------------------------------------
/crosecservice.cpp:
--------------------------------------------------------------------------------
 1 | // crosecservice.cpp : This file contains the 'main' function. Program execution begins and ends there.
 2 | //
 3 | 
 4 | #include <Windows.h>
 5 | #include <cstdio>
 6 | #include <thread>
 7 | #include "croskbhid.h"
 8 | #include "KeyboardBacklight.h"
 9 | 
10 | #include <SetupAPI.h>
11 | 
12 | BOOL isTabletConvertible;
13 | 
14 | void checkConvertible() {
15 |     isTabletConvertible = FALSE;
16 | 
17 |     HDEVINFO hdevinfo = SetupDiGetClassDevsW(NULL, LR"(ACPI\GOOG0006)",
18 |         NULL, DIGCF_ALLCLASSES);
19 |     if (hdevinfo == INVALID_HANDLE_VALUE)
20 |     {
21 |         DWORD err = GetLastError();
22 |         return;
23 |     }
24 | 
25 |     SP_DEVINFO_DATA devinfo;
26 |     devinfo.cbSize = sizeof(devinfo);
27 |     if (!SetupDiEnumDeviceInfo(hdevinfo, 0, &devinfo))
28 |     {
29 |         DWORD err = GetLastError();
30 |         return;
31 |     }
32 | 
33 |     isTabletConvertible = TRUE;
34 | }
35 | 
36 | int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR     lpCmdLine, int       nShowCmd)
37 | {
38 |     checkConvertible();
39 | 
40 |     pcroskbhid_client client = croskbhid_alloc();
41 |     BOOL connect = croskbhid_connect(client);
42 |     printf("Connected? %d\n", connect);
43 |     if (!connect) {
44 |         return 0;
45 |     }
46 | 
47 |     KeyboardBacklight backlight(client);
48 | 
49 |     CrosKBHIDRemapperMediaReport report = { 0 };
50 | 
51 |     while (TRUE) {
52 |         croskbhid_read_keyboard(client, &report);
53 | 
54 |         if (report.ReportID == REPORTID_MEDIA) {
55 |             if (report.ControlCode == 0)
56 |                 continue;
57 | 
58 |             if (report.ControlCode & CROSKBHID_KBLT_UP) {
59 |                 backlight.BrightnessInc();
60 |             }
61 |             if (report.ControlCode & CROSKBHID_KBLT_DN) {
62 |                 backlight.BrightnessDec();
63 |             }
64 |             if (report.ControlCode & CROSKBHID_KBLT_TOGGLE) {
65 |                 backlight.SetBacklightEnabled(!backlight.GetBacklightEnabled());
66 |             }
67 |         }
68 |     }
69 | 
70 |     croskbhid_disconnect(client);
71 | }


--------------------------------------------------------------------------------
/croskbhid.h:
--------------------------------------------------------------------------------
  1 | #if !defined(_CROSKBHIDREMAPPER_COMMON_H_)
  2 | #define _CROSKBHIDREMAPPER_COMMON_H_
  3 | 
  4 | typedef struct _croskbhid_client_t* pcroskbhid_client;
  5 | 
  6 | 
  7 | //
  8 | //These are the device attributes returned by vmulti in response
  9 | // to IOCTL_HID_GET_DEVICE_ATTRIBUTES.
 10 | //
 11 | 
 12 | #define CROSKBHIDREMAPPER_PID              0x0303
 13 | #define CROSKBHIDREMAPPER_VID              0x18D1
 14 | #define CROSKBHIDREMAPPER_VERSION          0x0004
 15 | 
 16 | #define CROSKBLIGHT_PID              0x0002
 17 | #define CROSKBLIGHT_VID              0x18D1
 18 | #define CROSKBLIGHT_VERSION          0x0001
 19 | 
 20 | //
 21 | // These are the report ids
 22 | //
 23 | 
 24 | #define REPORTID_KBLIGHT       0x01
 25 | 
 26 | #define REPORTID_KEYBOARD       0x07
 27 | #define REPORTID_MEDIA          0x08
 28 | #define REPORTID_SETTINGS		0x09
 29 | 
 30 | //
 31 | // Keyboard specific report infomation
 32 | //
 33 | 
 34 | #define CROSKBHID_BRIGHTNESS_UP 0x01
 35 | #define CROSKBHID_BRIGHTNESS_DN 0x02
 36 | #define CROSKBHID_KBLT_UP       0x04
 37 | #define CROSKBHID_KBLT_DN       0x08
 38 | #define CROSKBHID_KBLT_TOGGLE   0x10
 39 | 
 40 | #pragma pack(1)
 41 | typedef struct _CROSKBHIDREMAPPER_MEDIA_REPORT
 42 | {
 43 | 
 44 | 	BYTE      ReportID;
 45 | 
 46 | 	BYTE	  ControlCode;
 47 | 
 48 | 	BYTE	  Reserved;
 49 | 
 50 | } CrosKBHIDRemapperMediaReport;
 51 | 
 52 | #pragma pack()
 53 | 
 54 | #pragma pack()
 55 | 
 56 | //
 57 | // Feature report infomation
 58 | //
 59 | 
 60 | #define DEVICE_MODE_MOUSE        0x00
 61 | #define DEVICE_MODE_SINGLE_INPUT 0x01
 62 | #define DEVICE_MODE_MULTI_INPUT  0x02
 63 | 
 64 | #pragma pack(1)
 65 | typedef struct _CROSKBHIDREMAPPER_FEATURE_REPORT
 66 | {
 67 | 
 68 | 	BYTE      ReportID;
 69 | 
 70 | 	BYTE      DeviceMode;
 71 | 
 72 | 	BYTE      DeviceIdentifier;
 73 | 
 74 | } CrosKBHIDRemapperFeatureReport;
 75 | 
 76 | #pragma pack(1)
 77 | typedef struct _CROSKBHIDREMAPPER_SETTINGS_REPORT
 78 | {
 79 | 
 80 | 	BYTE        ReportID;
 81 | 
 82 | 	BYTE		SettingsRegister;
 83 | 
 84 | 	BYTE		SettingsValue;
 85 | 
 86 | } CrosKBHIDRemapperSettingsReport;
 87 | #pragma pack()
 88 | 
 89 | #pragma pack(1)
 90 | typedef struct _CROSKBLIGHT_GETLIGHT_REPORT
 91 | {
 92 | 
 93 | 	BYTE        ReportID;
 94 | 
 95 | 	BYTE		Brightness;
 96 | 
 97 | } CrosKBLightGetLightReport;
 98 | #pragma pack()
 99 | 
100 | #pragma pack(1)
101 | typedef struct _CROSKBLIGHT_SETTINGS_REPORT
102 | {
103 | 
104 | 	BYTE        ReportID;
105 | 
106 | 	BYTE		SetBrightness;
107 | 
108 | 	BYTE		Brightness;
109 | 
110 | } CrosKBLightSettingsReport;
111 | #pragma pack()
112 | 
113 | pcroskbhid_client croskbhid_alloc(void);
114 | 
115 | void croskbhid_free(pcroskbhid_client vmulti);
116 | 
117 | BOOL croskbhid_connect(pcroskbhid_client vmulti);
118 | 
119 | void croskbhid_disconnect(pcroskbhid_client vmulti);
120 | 
121 | BOOL croskblight_connect(pcroskbhid_client croskbhid);
122 | void croskblight_disconnect(pcroskbhid_client croskbhid);
123 | 
124 | BOOL croskbhid_read_keyboard(pcroskbhid_client vmulti, CrosKBHIDRemapperMediaReport* pReport);
125 | 
126 | BOOL croskbhid_write_keyboard(pcroskbhid_client vmulti, CrosKBHIDRemapperMediaReport* pReport);
127 | 
128 | BOOL croskblight_read_message(pcroskbhid_client vmulti, CrosKBLightSettingsReport* pReport);
129 | 
130 | BOOL croskblight_write_message(pcroskbhid_client vmulti, CrosKBLightSettingsReport* pReport);
131 | 
132 | #endif
133 | #pragma once
134 | 


--------------------------------------------------------------------------------
/KeyboardBacklight.cpp:
--------------------------------------------------------------------------------
  1 | #include <Windows.h>
  2 | #include <cstdio>
  3 | #include <thread>
  4 | #include "croskbhid.h"
  5 | #include "KeyboardBacklight.h"
  6 | 
  7 | KeyboardBacklight::KeyboardBacklight(pcroskbhid_client client) {
  8 |     this->client = client;
  9 |     this->HasKeyboardBacklight = croskblight_connect(client);
 10 | 
 11 |     if (this->HasKeyboardBacklight) {
 12 |         this->task = std::thread(&KeyboardBacklight::FadeBrightnessStep, this);
 13 |     }
 14 | 
 15 |     this->InstantlySet(this->InternalBrightness);
 16 | }
 17 | 
 18 | KeyboardBacklight::~KeyboardBacklight() {
 19 |     if (this->HasKeyboardBacklight) {
 20 |         this->HasKeyboardBacklight = FALSE;
 21 |         this->task.join();
 22 | 
 23 |         croskblight_disconnect(client);
 24 |     }
 25 | }
 26 | 
 27 | BOOL KeyboardBacklight::GetBacklightEnabled() {
 28 |     return BacklightEnabled;
 29 | }
 30 | 
 31 | void KeyboardBacklight::SetBacklightEnabled(BOOL enabled) {
 32 |     this->BacklightEnabled = enabled;
 33 |     this->InstantlySet(this->InternalBrightness);
 34 | }
 35 | 
 36 | INT KeyboardBacklight::GetBrightness() {
 37 |     return this->CurrentBrightness;
 38 | }
 39 | 
 40 | void KeyboardBacklight::FadeSetInternal(INT brightness) {
 41 |     this->BrightnessFadeStep = abs(this->InternalBrightness - brightness) / 6; //do over 6 steps[300 ms]
 42 |     this->BrightnessFadeTarget = brightness;
 43 | }
 44 | 
 45 | void KeyboardBacklight::FadeSet(INT brightness) {
 46 |     this->CurrentBrightness = brightness;
 47 |     this->BacklightEnabled = TRUE;
 48 |     this->FadeSetInternal(brightness);
 49 | }
 50 | 
 51 | void KeyboardBacklight::BrightnessInc() {
 52 |     INT DesiredBrightness = this->BrightnessFadeTarget;
 53 |     DesiredBrightness += 10;
 54 |     if (DesiredBrightness > 100) {
 55 |         DesiredBrightness = 100;
 56 |     }
 57 |     this->FadeSet(DesiredBrightness);
 58 | }
 59 | 
 60 | void KeyboardBacklight::BrightnessDec() {
 61 |     INT DesiredBrightness = this->BrightnessFadeTarget;
 62 |     DesiredBrightness -= 10;
 63 |     if (DesiredBrightness < 0) {
 64 |         DesiredBrightness = 0;
 65 |     }
 66 |     this->FadeSet(DesiredBrightness);
 67 | }
 68 | 
 69 | void KeyboardBacklight::FadeBrightnessStep() {
 70 |     INT TimerAdjustment = 0;
 71 |     while (this->HasKeyboardBacklight) {
 72 |         if ((50 - TimerAdjustment) > 0) {
 73 |             Sleep(50 - TimerAdjustment);
 74 |         }
 75 | 
 76 |         ULONGLONG Start = GetTickCount64();
 77 | 
 78 |         if (this->InternalBrightness == this->BrightnessFadeTarget &&
 79 |             this->IsLaptopMode == CheckIsLaptopMode()) {
 80 |             LASTINPUTINFO lastInput;
 81 |             lastInput.cbSize = sizeof(lastInput);
 82 |             GetLastInputInfo(&lastInput);
 83 | 
 84 |             DWORD currentTick = GetTickCount();
 85 |             if (currentTick - lastInput.dwTime > this->IdleTimeout || lastInput.dwTime > currentTick) {
 86 |                 if (this->BacklightEnabled)
 87 |                     this->FadeSetInternal(0);
 88 |             }
 89 |             else if (this->CurrentBrightness != 0 && this->InternalBrightness == 0) {
 90 |                 if (this->BacklightEnabled)
 91 |                     this->FadeSetInternal(this->CurrentBrightness);
 92 |             }
 93 | 
 94 |             TimerAdjustment = (INT)(GetTickCount64() - Start);
 95 | 
 96 |             continue;
 97 |         }
 98 | 
 99 |         INT DesiredBrightness = this->InternalBrightness;
100 |         INT BrightnessFadeTarget = this->BrightnessFadeTarget;
101 |         INT BrightnessFadeStep = this->BrightnessFadeStep;
102 | 
103 |         if ((DesiredBrightness < BrightnessFadeTarget) && (DesiredBrightness + BrightnessFadeStep) > BrightnessFadeTarget)
104 |         {
105 |             DesiredBrightness = BrightnessFadeTarget;
106 |         }
107 |         else if ((DesiredBrightness > BrightnessFadeTarget) && (DesiredBrightness - BrightnessFadeStep) < BrightnessFadeTarget)
108 |         {
109 |             DesiredBrightness = BrightnessFadeTarget;
110 |         }
111 |         else if (DesiredBrightness < BrightnessFadeTarget) {
112 |             DesiredBrightness = DesiredBrightness + BrightnessFadeStep;
113 |         }
114 |         else if (DesiredBrightness > BrightnessFadeTarget) {
115 |             DesiredBrightness = DesiredBrightness - BrightnessFadeStep;
116 |         }
117 | 
118 |         this->InstantlySet(DesiredBrightness);
119 | 
120 |         TimerAdjustment = (INT)(GetTickCount64() - Start);
121 |     }
122 | }
123 | 
124 | extern BOOL isTabletConvertible;
125 | 
126 | BOOL KeyboardBacklight::CheckIsLaptopMode() {
127 |     if (!isTabletConvertible) {
128 |         return TRUE;
129 |     }
130 |     return (GetSystemMetrics(SM_CONVERTIBLESLATEMODE) != 0);
131 | }
132 | 
133 | void KeyboardBacklight::InstantlySet(INT brightness) {
134 |     if (brightness > 100)
135 |         brightness = 100;
136 |     else if (brightness < 0)
137 |         brightness = 0;
138 |     this->InternalBrightness = brightness;
139 | 
140 |     CrosKBLightSettingsReport report = { 0 };
141 |     report.ReportID = REPORTID_KBLIGHT;
142 |     report.SetBrightness = 1;
143 |     report.Brightness = this->BacklightEnabled ? brightness : 0;
144 |     
145 |     this->IsLaptopMode = CheckIsLaptopMode();
146 |     if (!this->IsLaptopMode) {
147 |         report.Brightness = 0;
148 |     }
149 | 
150 |     croskblight_write_message(client, &report);
151 | }


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
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237 | # to a newer Visual Studio version. Backup files are not needed,
238 | # because we have git ;-)
239 | _UpgradeReport_Files/
240 | Backup*/
241 | UpgradeLog*.XML
242 | UpgradeLog*.htm
243 | ServiceFabricBackup/
244 | *.rptproj.bak
245 | 
246 | # SQL Server files
247 | *.mdf
248 | *.ldf
249 | *.ndf
250 | 
251 | # Business Intelligence projects
252 | *.rdl.data
253 | *.bim.layout
254 | *.bim_*.settings
255 | *.rptproj.rsuser
256 | 
257 | # Microsoft Fakes
258 | FakesAssemblies/
259 | 
260 | # GhostDoc plugin setting file
261 | *.GhostDoc.xml
262 | 
263 | # Node.js Tools for Visual Studio
264 | .ntvs_analysis.dat
265 | node_modules/
266 | 
267 | # Visual Studio 6 build log
268 | *.plg
269 | 
270 | # Visual Studio 6 workspace options file
271 | *.opt
272 | 
273 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
274 | *.vbw
275 | 
276 | # Visual Studio LightSwitch build output
277 | **/*.HTMLClient/GeneratedArtifacts
278 | **/*.DesktopClient/GeneratedArtifacts
279 | **/*.DesktopClient/ModelManifest.xml
280 | **/*.Server/GeneratedArtifacts
281 | **/*.Server/ModelManifest.xml
282 | _Pvt_Extensions
283 | 
284 | # Paket dependency manager
285 | .paket/paket.exe
286 | paket-files/
287 | 
288 | # FAKE - F# Make
289 | .fake/
290 | 
291 | # JetBrains Rider
292 | .idea/
293 | *.sln.iml
294 | 
295 | # CodeRush personal settings
296 | .cr/personal
297 | 
298 | # Python Tools for Visual Studio (PTVS)
299 | __pycache__/
300 | *.pyc
301 | 
302 | # Cake - Uncomment if you are using it
303 | # tools/**
304 | # !tools/packages.config
305 | 
306 | # Tabs Studio
307 | *.tss
308 | 
309 | # Telerik's JustMock configuration file
310 | *.jmconfig
311 | 
312 | # BizTalk build output
313 | *.btp.cs
314 | *.btm.cs
315 | *.odx.cs
316 | *.xsd.cs
317 | 
318 | # OpenCover UI analysis results
319 | OpenCover/
320 | 
321 | # Azure Stream Analytics local run output
322 | ASALocalRun/
323 | 
324 | # MSBuild Binary and Structured Log
325 | *.binlog
326 | 
327 | # NVidia Nsight GPU debugger configuration file
328 | *.nvuser
329 | 
330 | # MFractors (Xamarin productivity tool) working folder
331 | .mfractor/
332 | 
333 | # Local History for Visual Studio
334 | .localhistory/
335 | 


--------------------------------------------------------------------------------
/crosecservice.vcxproj:
--------------------------------------------------------------------------------
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  9 |       <Configuration>Release</Configuration>
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 11 |     </ProjectConfiguration>
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 13 |       <Configuration>Debug</Configuration>
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 15 |     </ProjectConfiguration>
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 17 |       <Configuration>Release</Configuration>
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 19 |     </ProjectConfiguration>
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 24 |     <ProjectGuid>{25357b70-bb72-4b8e-9334-19f6ba5999bb}</ProjectGuid>
 25 |     <RootNamespace>crosecservice</RootNamespace>
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 33 |     <CharacterSet>Unicode</CharacterSet>
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 38 |     <PlatformToolset>v143</PlatformToolset>
 39 |     <WholeProgramOptimization>true</WholeProgramOptimization>
 40 |     <CharacterSet>Unicode</CharacterSet>
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 42 |   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
 43 |     <ConfigurationType>Application</ConfigurationType>
 44 |     <UseDebugLibraries>true</UseDebugLibraries>
 45 |     <PlatformToolset>v143</PlatformToolset>
 46 |     <CharacterSet>Unicode</CharacterSet>
 47 |   </PropertyGroup>
 48 |   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
 49 |     <ConfigurationType>Application</ConfigurationType>
 50 |     <UseDebugLibraries>false</UseDebugLibraries>
 51 |     <PlatformToolset>v143</PlatformToolset>
 52 |     <WholeProgramOptimization>true</WholeProgramOptimization>
 53 |     <CharacterSet>Unicode</CharacterSet>
 54 |   </PropertyGroup>
 55 |   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
 56 |   <ImportGroup Label="ExtensionSettings">
 57 |   </ImportGroup>
 58 |   <ImportGroup Label="Shared">
 59 |   </ImportGroup>
 60 |   <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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 62 |   </ImportGroup>
 63 |   <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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 73 |   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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 87 |       <WarningLevel>Level3</WarningLevel>
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 92 |     <Link>
 93 |       <SubSystem>Windows</SubSystem>
 94 |       <GenerateDebugInformation>true</GenerateDebugInformation>
 95 |       <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;setupapi.lib;hid.lib;%(AdditionalDependencies)</AdditionalDependencies>
 96 |     </Link>
 97 |   </ItemDefinitionGroup>
 98 |   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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100 |       <WarningLevel>Level3</WarningLevel>
101 |       <FunctionLevelLinking>true</FunctionLevelLinking>
102 |       <IntrinsicFunctions>true</IntrinsicFunctions>
103 |       <SDLCheck>true</SDLCheck>
104 |       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
105 |       <ConformanceMode>true</ConformanceMode>
106 |     </ClCompile>
107 |     <Link>
108 |       <SubSystem>Windows</SubSystem>
109 |       <EnableCOMDATFolding>true</EnableCOMDATFolding>
110 |       <OptimizeReferences>true</OptimizeReferences>
111 |       <GenerateDebugInformation>true</GenerateDebugInformation>
112 |       <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;setupapi.lib;hid.lib;%(AdditionalDependencies)</AdditionalDependencies>
113 |     </Link>
114 |   </ItemDefinitionGroup>
115 |   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
116 |     <ClCompile>
117 |       <WarningLevel>Level3</WarningLevel>
118 |       <SDLCheck>true</SDLCheck>
119 |       <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
120 |       <ConformanceMode>true</ConformanceMode>
121 |     </ClCompile>
122 |     <Link>
123 |       <SubSystem>Windows</SubSystem>
124 |       <GenerateDebugInformation>true</GenerateDebugInformation>
125 |       <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;setupapi.lib;hid.lib;%(AdditionalDependencies)</AdditionalDependencies>
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127 |   </ItemDefinitionGroup>
128 |   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
129 |     <ClCompile>
130 |       <WarningLevel>Level3</WarningLevel>
131 |       <FunctionLevelLinking>true</FunctionLevelLinking>
132 |       <IntrinsicFunctions>true</IntrinsicFunctions>
133 |       <SDLCheck>true</SDLCheck>
134 |       <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
135 |       <ConformanceMode>true</ConformanceMode>
136 |     </ClCompile>
137 |     <Link>
138 |       <SubSystem>Windows</SubSystem>
139 |       <EnableCOMDATFolding>true</EnableCOMDATFolding>
140 |       <OptimizeReferences>true</OptimizeReferences>
141 |       <GenerateDebugInformation>true</GenerateDebugInformation>
142 |       <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;setupapi.lib;hid.lib;%(AdditionalDependencies)</AdditionalDependencies>
143 |     </Link>
144 |   </ItemDefinitionGroup>
145 |   <ItemGroup>
146 |     <ClCompile Include="client.cpp" />
147 |     <ClCompile Include="crosecservice.cpp" />
148 |     <ClCompile Include="KeyboardBacklight.cpp" />
149 |   </ItemGroup>
150 |   <ItemGroup>
151 |     <ClInclude Include="croskbhid.h" />
152 |     <ClInclude Include="KeyboardBacklight.h" />
153 |   </ItemGroup>
154 |   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
155 |   <ImportGroup Label="ExtensionTargets">
156 |   </ImportGroup>
157 | </Project>


--------------------------------------------------------------------------------
/client.cpp:
--------------------------------------------------------------------------------
  1 | #include <windows.h>
  2 | #include <hidsdi.h>
  3 | #include <setupapi.h>
  4 | #include <stdio.h>
  5 | #include <stdlib.h>
  6 | 
  7 | #include "croskbhid.h"
  8 | 
  9 | #if __GNUC__
 10 | #define __in
 11 | #define __in_ecount(x)
 12 | typedef void* PVOID;
 13 | typedef PVOID HDEVINFO;
 14 | WINHIDSDI BOOL WINAPI HidD_SetOutputReport(HANDLE, PVOID, ULONG);
 15 | #endif
 16 | 
 17 | typedef struct _croskbhid_client_t
 18 | {
 19 | 	HANDLE hKeyboard;
 20 | 	HANDLE hSettings;
 21 | } croskbhid_client_t;
 22 | 
 23 | //
 24 | // Function prototypes
 25 | //
 26 | 
 27 | HANDLE
 28 | SearchMatchingHwID(
 29 | 	USHORT vendorID,
 30 | 	USHORT productID,
 31 | 	USAGE myUsagePage,
 32 | 	USAGE myUsage
 33 | );
 34 | 
 35 | HANDLE
 36 | OpenDeviceInterface(
 37 | 	HDEVINFO HardwareDeviceInfo,
 38 | 	PSP_DEVICE_INTERFACE_DATA DeviceInterfaceData,
 39 | 	USHORT vendorID,
 40 | 	USHORT productID,
 41 | 	USAGE myUsagePage,
 42 | 	USAGE myUsage
 43 | );
 44 | 
 45 | BOOLEAN
 46 | CheckIfOurDevice(
 47 | 	HANDLE file,
 48 | 	USHORT vendorID,
 49 | 	USHORT productID,
 50 | 	USAGE myUsagePage,
 51 | 	USAGE myUsage
 52 | );
 53 | 
 54 | BOOL
 55 | HidOutput(
 56 | 	BOOL useSetOutputReport,
 57 | 	HANDLE file,
 58 | 	PCHAR buffer,
 59 | 	ULONG bufferSize
 60 | );
 61 | 
 62 | //
 63 | // Copied this structure from hidport.h
 64 | //
 65 | 
 66 | typedef struct _HID_DEVICE_ATTRIBUTES {
 67 | 
 68 | 	ULONG           Size;
 69 | 	//
 70 | 	// sizeof (struct _HID_DEVICE_ATTRIBUTES)
 71 | 	//
 72 | 	//
 73 | 	// Vendor ids of this hid device
 74 | 	//
 75 | 	USHORT          VendorID;
 76 | 	USHORT          ProductID;
 77 | 	USHORT          VersionNumber;
 78 | 	USHORT          Reserved[11];
 79 | 
 80 | } HID_DEVICE_ATTRIBUTES, * PHID_DEVICE_ATTRIBUTES;
 81 | 
 82 | static USHORT TpVendorID = 0;
 83 | 
 84 | USHORT getVendorID() {
 85 | 	return TpVendorID;
 86 | }
 87 | 
 88 | //
 89 | // Implementation
 90 | //
 91 | 
 92 | pcroskbhid_client croskbhid_alloc(void)
 93 | {
 94 | 	return (pcroskbhid_client)malloc(sizeof(croskbhid_client_t));
 95 | }
 96 | 
 97 | void croskbhid_free(pcroskbhid_client croskbhid)
 98 | {
 99 | 	free(croskbhid);
100 | }
101 | 
102 | BOOL croskbhid_connect(pcroskbhid_client croskbhid)
103 | {
104 | 	//
105 | 	// Find the HID devices
106 | 	//
107 | 
108 | 	croskbhid->hKeyboard = SearchMatchingHwID(CROSKBHIDREMAPPER_VID, CROSKBHIDREMAPPER_PID, 0x000C, 0x0001);
109 | 	if (croskbhid->hKeyboard == INVALID_HANDLE_VALUE || croskbhid->hKeyboard == NULL)
110 | 	{
111 | 		croskbhid_disconnect(croskbhid);
112 | 		return FALSE;
113 | 	}
114 | 
115 | 	//
116 | 	// Set the buffer count to 10 on the setting HID
117 | 	//
118 | 
119 | 	if (!HidD_SetNumInputBuffers(croskbhid->hKeyboard, 10))
120 | 	{
121 | 		printf("failed HidD_SetNumInputBuffers %d\n", GetLastError());
122 | 		croskbhid_disconnect(croskbhid);
123 | 		return FALSE;
124 | 	}	
125 | 	return TRUE;
126 | }
127 | 
128 | BOOL croskblight_connect(pcroskbhid_client croskbhid) {
129 | 	croskbhid->hSettings = SearchMatchingHwID(CROSKBLIGHT_VID, CROSKBLIGHT_PID, 0xff00, 0x0001);
130 | 	if (croskbhid->hSettings == INVALID_HANDLE_VALUE || croskbhid->hSettings == NULL)
131 | 	{
132 | 		croskbhid->hSettings = NULL;
133 | 		return FALSE;
134 | 	}
135 | 
136 | 	if (!HidD_SetNumInputBuffers(croskbhid->hSettings, 10))
137 | 	{
138 | 		printf("failed HidD_SetNumInputBuffers %d\n", GetLastError());
139 | 		croskbhid_disconnect(croskbhid);
140 | 		return FALSE;
141 | 	}
142 | 	return TRUE;
143 | }
144 | 
145 | void croskblight_disconnect(pcroskbhid_client croskbhid)
146 | {
147 | 	if (croskbhid->hSettings != NULL)
148 | 		CloseHandle(croskbhid->hSettings);
149 | 	croskbhid->hSettings = NULL;
150 | }
151 | 
152 | void croskbhid_disconnect(pcroskbhid_client croskbhid)
153 | {
154 | 	if (croskbhid->hKeyboard != NULL)
155 | 		CloseHandle(croskbhid->hKeyboard);
156 | 	croskbhid->hKeyboard = NULL;
157 | 
158 | 	if (croskbhid->hSettings != NULL)
159 | 		CloseHandle(croskbhid->hSettings);
160 | 	croskbhid->hSettings = NULL;
161 | }
162 | 
163 | BOOL croskbhid_read_keyboard(pcroskbhid_client vmulti, CrosKBHIDRemapperMediaReport* pReport)
164 | {
165 | 	ULONG bytesRead;
166 | 
167 | 	//
168 | 	// Read the report
169 | 	//
170 | 
171 | 	if (!ReadFile(vmulti->hKeyboard, pReport, sizeof(CrosKBHIDRemapperMediaReport), &bytesRead, NULL))
172 | 	{
173 | 		return FALSE;
174 | 	}
175 | 
176 | 	return TRUE;
177 | }
178 | 
179 | BOOL croskbhid_write_keyboard(pcroskbhid_client croskbhid, CrosKBHIDRemapperMediaReport* pReport)
180 | {
181 | 	ULONG bytesWritten;
182 | 
183 | 	//
184 | 	// Write the report
185 | 	//
186 | 
187 | 	if (!WriteFile(croskbhid->hKeyboard, pReport, sizeof(CrosKBHIDRemapperMediaReport), &bytesWritten, NULL))
188 | 	{
189 | 		return FALSE;
190 | 	}
191 | 
192 | 	return TRUE;
193 | }
194 | 
195 | BOOL croskblight_read_message(pcroskbhid_client vmulti, CrosKBLightSettingsReport* pReport)
196 | {
197 | 	ULONG bytesRead;
198 | 
199 | 	//
200 | 	// Read the report
201 | 	//
202 | 
203 | 	if (!ReadFile(vmulti->hSettings, pReport, sizeof(CrosKBLightSettingsReport), &bytesRead, NULL))
204 | 	{
205 | 		return FALSE;
206 | 	}
207 | 
208 | 	return TRUE;
209 | }
210 | 
211 | BOOL croskblight_write_message(pcroskbhid_client croskbhid, CrosKBLightSettingsReport* pReport)
212 | {
213 | 	ULONG bytesWritten;
214 | 
215 | 	//
216 | 	// Write the report
217 | 	//
218 | 
219 | 	if (!WriteFile(croskbhid->hSettings, pReport, sizeof(CrosKBLightSettingsReport), &bytesWritten, NULL))
220 | 	{
221 | 		return FALSE;
222 | 	}
223 | 
224 | 	return TRUE;
225 | }
226 | 
227 | HANDLE
228 | SearchMatchingHwID(
229 | 	USHORT vendorID,
230 | 	USHORT productID,
231 | 	USAGE myUsagePage,
232 | 	USAGE myUsage
233 | )
234 | {
235 | 	HDEVINFO                  hardwareDeviceInfo;
236 | 	SP_DEVICE_INTERFACE_DATA  deviceInterfaceData;
237 | 	SP_DEVINFO_DATA           devInfoData;
238 | 	GUID                      hidguid;
239 | 	int                       i;
240 | 
241 | 	HidD_GetHidGuid(&hidguid);
242 | 
243 | 	hardwareDeviceInfo =
244 | 		SetupDiGetClassDevs((LPGUID)&hidguid,
245 | 			NULL,
246 | 			NULL, // Define no
247 | 			(DIGCF_PRESENT |
248 | 				DIGCF_INTERFACEDEVICE));
249 | 
250 | 	if (INVALID_HANDLE_VALUE == hardwareDeviceInfo)
251 | 	{
252 | 		printf("SetupDiGetClassDevs failed: %x\n", GetLastError());
253 | 		return INVALID_HANDLE_VALUE;
254 | 	}
255 | 
256 | 	deviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
257 | 
258 | 	devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
259 | 
260 | 	//
261 | 	// Enumerate devices of this interface class
262 | 	//
263 | 
264 | 	printf("\n....looking for our HID device (with UP=0x%x "
265 | 		"and Usage=0x%x)\n", myUsagePage, myUsage);
266 | 
267 | 	for (i = 0; SetupDiEnumDeviceInterfaces(hardwareDeviceInfo,
268 | 		0, // No care about specific PDOs
269 | 		(LPGUID)&hidguid,
270 | 		i, //
271 | 		&deviceInterfaceData);
272 | 		i++)
273 | 	{
274 | 
275 | 		//
276 | 		// Open the device interface and Check if it is our device
277 | 		// by matching the Usage page and Usage from Hid_Caps.
278 | 		// If this is our device then send the hid request.
279 | 		//
280 | 
281 | 		HANDLE file = OpenDeviceInterface(hardwareDeviceInfo, &deviceInterfaceData, vendorID, productID, myUsagePage, myUsage);
282 | 
283 | 		if (file != INVALID_HANDLE_VALUE)
284 | 		{
285 | 			SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
286 | 			return file;
287 | 		}
288 | 
289 | 		//
290 | 		//device was not found so loop around.
291 | 		//
292 | 
293 | 	}
294 | 
295 | 	printf("Failure: Could not find our HID device \n");
296 | 
297 | 	SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
298 | 
299 | 	return INVALID_HANDLE_VALUE;
300 | }
301 | 
302 | HANDLE
303 | OpenDeviceInterface(
304 | 	HDEVINFO hardwareDeviceInfo,
305 | 	PSP_DEVICE_INTERFACE_DATA deviceInterfaceData,
306 | 	USHORT vendorID,
307 | 	USHORT productID,
308 | 	USAGE myUsagePage,
309 | 	USAGE myUsage
310 | )
311 | {
312 | 	PSP_DEVICE_INTERFACE_DETAIL_DATA    deviceInterfaceDetailData = NULL;
313 | 
314 | 	DWORD        predictedLength = 0;
315 | 	DWORD        requiredLength = 0;
316 | 	HANDLE       file = INVALID_HANDLE_VALUE;
317 | 
318 | 	SetupDiGetDeviceInterfaceDetail(
319 | 		hardwareDeviceInfo,
320 | 		deviceInterfaceData,
321 | 		NULL, // probing so no output buffer yet
322 | 		0, // probing so output buffer length of zero
323 | 		&requiredLength,
324 | 		NULL
325 | 	); // not interested in the specific dev-node
326 | 
327 | 	predictedLength = requiredLength;
328 | 
329 | 	deviceInterfaceDetailData =
330 | 		(PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(predictedLength);
331 | 
332 | 	if (!deviceInterfaceDetailData)
333 | 	{
334 | 		printf("Error: OpenDeviceInterface: malloc failed\n");
335 | 		goto cleanup;
336 | 	}
337 | 
338 | 	deviceInterfaceDetailData->cbSize =
339 | 		sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
340 | 
341 | 	if (!SetupDiGetDeviceInterfaceDetail(
342 | 		hardwareDeviceInfo,
343 | 		deviceInterfaceData,
344 | 		deviceInterfaceDetailData,
345 | 		predictedLength,
346 | 		&requiredLength,
347 | 		NULL))
348 | 	{
349 | 		printf("Error: SetupDiGetInterfaceDeviceDetail failed\n");
350 | 		free(deviceInterfaceDetailData);
351 | 		goto cleanup;
352 | 	}
353 | 
354 | 	file = CreateFile(deviceInterfaceDetailData->DevicePath,
355 | 		GENERIC_READ | GENERIC_WRITE,
356 | 		FILE_SHARE_READ | FILE_SHARE_WRITE,
357 | 		NULL, // no SECURITY_ATTRIBUTES structure
358 | 		OPEN_EXISTING, // No special create flags
359 | 		0, // No special attributes
360 | 		NULL); // No template file
361 | 
362 | 	if (INVALID_HANDLE_VALUE == file) {
363 | 		printf("Error: CreateFile failed: %d\n", GetLastError());
364 | 		goto cleanup;
365 | 	}
366 | 
367 | 	if (CheckIfOurDevice(file, vendorID, productID, myUsagePage, myUsage)) {
368 | 
369 | 		goto cleanup;
370 | 
371 | 	}
372 | 
373 | 	CloseHandle(file);
374 | 
375 | 	file = INVALID_HANDLE_VALUE;
376 | 
377 | cleanup:
378 | 
379 | 	free(deviceInterfaceDetailData);
380 | 
381 | 	return file;
382 | 
383 | }
384 | 
385 | 
386 | BOOLEAN
387 | CheckIfOurDevice(
388 | 	HANDLE file,
389 | 	USHORT vendorID,
390 | 	USHORT productID,
391 | 	USAGE myUsagePage,
392 | 	USAGE myUsage)
393 | {
394 | 	PHIDP_PREPARSED_DATA Ppd = NULL; // The opaque parser info describing this device
395 | 	HIDD_ATTRIBUTES                 Attributes; // The Attributes of this hid device.
396 | 	HIDP_CAPS                       Caps; // The Capabilities of this hid device.
397 | 	BOOLEAN                         result = FALSE;
398 | 
399 | 	if (!HidD_GetPreparsedData(file, &Ppd))
400 | 	{
401 | 		printf("Error: HidD_GetPreparsedData failed \n");
402 | 		goto cleanup;
403 | 	}
404 | 
405 | 	if (!HidD_GetAttributes(file, &Attributes))
406 | 	{
407 | 		printf("Error: HidD_GetAttributes failed \n");
408 | 		goto cleanup;
409 | 	}
410 | 
411 | 	if (Attributes.VendorID == vendorID && Attributes.ProductID == productID)
412 | 	{
413 | 		TpVendorID = Attributes.VendorID;
414 | 
415 | 		if (!HidP_GetCaps(Ppd, &Caps))
416 | 		{
417 | 			printf("Error: HidP_GetCaps failed \n");
418 | 			goto cleanup;
419 | 		}
420 | 
421 | 		if ((Caps.UsagePage == myUsagePage) && (Caps.Usage == myUsage))
422 | 		{
423 | 			printf("Success: Found my device.. \n");
424 | 			result = TRUE;
425 | 		}
426 | 	}
427 | 
428 | cleanup:
429 | 
430 | 	if (Ppd != NULL)
431 | 	{
432 | 		HidD_FreePreparsedData(Ppd);
433 | 	}
434 | 
435 | 	return result;
436 | }
437 | 
438 | BOOL
439 | HidOutput(
440 | 	BOOL useSetOutputReport,
441 | 	HANDLE file,
442 | 	PCHAR buffer,
443 | 	ULONG bufferSize
444 | )
445 | {
446 | 	ULONG bytesWritten;
447 | 	if (useSetOutputReport)
448 | 	{
449 | 		//
450 | 		// Send Hid report thru HidD_SetOutputReport API
451 | 		//
452 | 
453 | 		if (!HidD_SetOutputReport(file, buffer, bufferSize))
454 | 		{
455 | 			printf("failed HidD_SetOutputReport %d\n", GetLastError());
456 | 			return FALSE;
457 | 		}
458 | 	}
459 | 	else
460 | 	{
461 | 		if (!WriteFile(file, buffer, bufferSize, &bytesWritten, NULL))
462 | 		{
463 | 			printf("failed WriteFile %d\n", GetLastError());
464 | 			return FALSE;
465 | 		}
466 | 	}
467 | 
468 | 	return TRUE;
469 | }


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