获取鼠标的dpi 和回报率 那个hz单位的 这种怎么获取 用C++代码 修改的也写一下
获取鼠标的dpi和回报率可以通过Windows API函数来实现。具体步骤如下：
- 引入Windows.h头文件
#include <Windows.h>
- 定义MOUSE_CAPABILITIES结构体
typedef struct _MOUSE_CAPABILITIES {
USHORT HardwareType;
USHORT HardwareSubType;
USHORT FirmwareVersion;
USHORT DPI;
ULONG SampleRate;
ULONG NumberOfButtons;
ULONG HasHorizontalWheel;
} MOUSE_CAPABILITIES, *PMOUSE_CAPABILITIES;
- 定义HIDP_CAPS结构体
typedef struct _HIDP_CAPS {
USHORT Usage;
USHORT UsagePage;
USHORT InputReportByteLength;
USHORT OutputReportByteLength;
USHORT FeatureReportByteLength;
USHORT Reserved[17];
USHORT NumberLinkCollectionNodes;
USHORT NumberInputButtonCaps;
USHORT NumberInputValueCaps;
USHORT NumberInputDataIndices;
USHORT NumberOutputButtonCaps;
USHORT NumberOutputValueCaps;
USHORT NumberOutputDataIndices;
USHORT NumberFeatureButtonCaps;
USHORT NumberFeatureValueCaps;
USHORT NumberFeatureDataIndices;
} HIDP_CAPS, *PHIDP_CAPS;
- 定义HIDP_VALUE_CAPS结构体
typedef struct _HIDP_VALUE_CAPS {
USHORT UsagePage;
UCHAR ReportID;
BOOLEAN IsAlias;
USHORT BitField;
USHORT LinkCollection;
USHORT LinkUsage;
USHORT LinkUsagePage;
BOOLEAN IsRange;
BOOLEAN IsStringRange;
BOOLEAN IsDesignatorRange;
BOOLEAN IsAbsolute;
BOOLEAN HasNull;
UCHAR Reserved;
USHORT BitSize;
USHORT ReportCount;
USHORT Reserved2[5];
ULONG UnitsExp;
ULONG Units;
LONG LogicalMin;
LONG LogicalMax;
LONG PhysicalMin;
LONG PhysicalMax;
union {
struct {
USHORT Usage;
USHORT Reserved;
} Range;
struct {
USHORT UsageMin;
USHORT UsageMax;
USHORT Reserved;
} RangeWithID;
};
} HIDP_VALUE_CAPS, *PHIDP_VALUE_CAPS;
- 定义HIDP_BUTTON_CAPS结构体
typedef struct _HIDP_BUTTON_CAPS {
USHORT UsagePage;
UCHAR ReportID;
BOOLEAN IsAlias;
USHORT BitField;
USHORT LinkCollection;
USHORT LinkUsage;
USHORT LinkUsagePage;
BOOLEAN IsRange;
BOOLEAN IsStringRange;
BOOLEAN IsDesignatorRange;
BOOLEAN IsAbsolute;
UCHAR Reserved;
USHORT UsageMin;
USHORT UsageMax;
USHORT StringMin;
USHORT StringMax;
USHORT DesignatorMin;
USHORT DesignatorMax;
USHORT DataIndexMin;
USHORT DataIndexMax;
} HIDP_BUTTON_CAPS, *PHIDP_BUTTON_CAPS;
- 定义HIDP_DATA结构体
typedef struct _HIDP_DATA {
USHORT DataIndex;
USHORT Reserved;
union {
ULONG RawValue;
BOOLEAN On;
};
} HIDP_DATA, *PHIDP_DATA;
- 定义HIDP_PREPARSED_DATA类型
typedef PVOID HIDP_PREPARSED_DATA;
- 实现获取鼠标dpi和回报率的函数
void GetMouseCapabilities()
{
// 获取鼠标的HIDP_PREPARSED_DATA
HANDLE hMouse = GetStdHandle(STD_INPUT_HANDLE);
PHIDP_PREPARSED_DATA pPreparsedData = NULL;
HidD_GetPreparsedData(hMouse, &pPreparsedData);
// 获取鼠标的HIDP_CAPS
HIDP_CAPS Caps;
HidP_GetCaps(pPreparsedData, &Caps);
// 获取鼠标的MOUSE_CAPABILITIES
MOUSE_CAPABILITIES MouseCaps;
HidD_GetAttributes(hMouse, (PVOID)&MouseCaps);
// 获取鼠标的HIDP_BUTTON_CAPS和HIDP_VALUE_CAPS
PHIDP_BUTTON_CAPS pButtonCaps = new HIDP_BUTTON_CAPS[Caps.NumberInputButtonCaps];
PHIDP_VALUE_CAPS pValueCaps = new HIDP_VALUE_CAPS[Caps.NumberInputValueCaps];
ULONG ulButtonCapsLength, ulValueCapsLength;
HidP_GetButtonCaps(HidP_Input, pButtonCaps, &ulButtonCapsLength, pPreparsedData);
HidP_GetValueCaps(HidP_Input, pValueCaps, &ulValueCapsLength, pPreparsedData);
// 获取鼠标的回报率
ULONG ReportRate = 0;
for (ULONG i = 0; i < Caps.NumberInputValueCaps; i++) {
if (pValueCaps[i].UsagePage == 0x84 && pValueCaps[i].Usage == 0x4d) {
ReportRate = 1000000 / pValueCaps[i].Units;
break;
}
}
// 获取鼠标的dpi
USHORT DPI = MouseCaps.DPI;
// 输出鼠标的dpi和回报率
printf("Mouse DPI: %d\n", DPI);
printf("Mouse Report Rate: %d Hz\n", ReportRate);
// 释放资源
delete[] pButtonCaps;
delete[] pValueCaps;
HidD_FreePreparsedData(pPreparsedData);
}
修改dpi和回报率可以通过Windows API函数来实现。具体步骤如下：
- 引入Windows.h头文件
#include <Windows.h>
- 定义HIDP_VALUE_CAPS结构体
typedef struct _HIDP_VALUE_CAPS {
USHORT UsagePage;
UCHAR ReportID;
BOOLEAN IsAlias;
USHORT BitField;
USHORT LinkCollection;
USHORT LinkUsage;
USHORT LinkUsagePage;
BOOLEAN IsRange;
BOOLEAN IsStringRange;
BOOLEAN IsDesignatorRange;
BOOLEAN IsAbsolute;
BOOLEAN HasNull;
UCHAR Reserved;
USHORT BitSize;
USHORT ReportCount;
USHORT Reserved2[5];
ULONG UnitsExp;
ULONG Units;
LONG LogicalMin;
LONG LogicalMax;
LONG PhysicalMin;
LONG PhysicalMax;
union {
struct {
USHORT Usage;
USHORT Reserved;
} Range;
struct {
USHORT UsageMin;
USHORT UsageMax;
USHORT Reserved;
} RangeWithID;
};
} HIDP_VALUE_CAPS, *PHIDP_VALUE_CAPS;
- 实现修改鼠标dpi和回报率的函数
void SetMouseDPIAndReportRate(USHORT DPI, ULONG ReportRate)
{
// 获取鼠标的HIDP_PREPARSED_DATA
HANDLE hMouse = GetStdHandle(STD_INPUT_HANDLE);
PHIDP_PREPARSED_DATA pPreparsedData = NULL;
HidD_GetPreparsedData(hMouse, &pPreparsedData);
// 获取鼠标的HIDP_CAPS
HIDP_CAPS Caps;
HidP_GetCaps(pPreparsedData, &Caps);
// 获取鼠标的HIDP_VALUE_CAPS
PHIDP_VALUE_CAPS pValueCaps = new HIDP_VALUE_CAPS[Caps.NumberInputValueCaps];
ULONG ulValueCapsLength;
HidP_GetValueCaps(HidP_Input, pValueCaps, &ulValueCapsLength, pPreparsedData);
// 修改鼠标的dpi
for (ULONG i = 0; i < Caps.NumberInputValueCaps; i++) {
if (pValueCaps[i].UsagePage == 0x1 && pValueCaps[i].Usage == 0x48) {
LONG LogicalMin = pValueCaps[i].LogicalMin;
LONG LogicalMax = pValueCaps[i].LogicalMax;
LONG PhysicalMin = pValueCaps[i].PhysicalMin;
LONG PhysicalMax = pValueCaps[i].PhysicalMax;
ULONG UnitsExp = pValueCaps[i].UnitsExp;
ULONG Units = pValueCaps[i].Units;
USHORT ReportCount = pValueCaps[i].ReportCount;
pValueCaps[i].PhysicalMax = PhysicalMin + (DPI - LogicalMin) * (PhysicalMax - PhysicalMin) / (LogicalMax - LogicalMin);
pValueCaps[i].Units = DPI;
HidP_SetValueCaps(HidP_Input, pValueCaps, ulValueCapsLength, pPreparsedData);
break;
}
}
// 修改鼠标的回报率
for (ULONG i = 0; i < Caps.NumberInputValueCaps; i++) {
if (pValueCaps[i].UsagePage == 0x84 && pValueCaps[i].Usage == 0x4d) {
pValueCaps[i].Units = 1000000 / ReportRate;
HidP_SetValueCaps(HidP_Input, pValueCaps, ulValueCapsLength, pPreparsedData);
break;
}
}
// 释放资源
delete[] pValueCaps;
HidD_FreePreparsedData(pPreparsedData);
}
``
原文地址: https://www.cveoy.top/t/topic/eOuo 著作权归作者所有。请勿转载和采集!