BCB 如何中响应光驱的打开插入事件?

Robin 2008-10-14 10:53:48

#include <initguid.h>
#include <dbt.h>

DEFINE_GUID( GUID_CLASS_IDE_CDROM, 0x4d36e965, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2B, \
0xe1, 0x03, 0x18);
//{4D36E965-E325-11CE-BFC1-08002BE10318}

DEFINE_GUID( GUID_CLASS_SCSI_CDROM, 0x4d36e965, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, \
0x00, 0x2b, 0xe1, 0x03, 0x18);
//{4D36E965-E325-11CE-BFC1-08002BE10318}


DEFINE_GUID( GUID_CLASS_SCSI_CDROM_A, 0x1186654d, 0x47b5, 0x48b6, 0xbe, 0xb9, 0x7d, \
0xf1, 0x13, 0xae, 0x3c, 0x67);
//{1186654d-47b8-48b9-beb9-7df113ae3c67}

DEFINE_GUID( GUID_CLASS_SCSI_CDROM_B, 0x53f56308, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, \
0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
//{53f56308-b6bf-11d0-94f2-00a0c91efb8b}

DEFINE_GUID( GUID_CLASS_SCSI_CDROM_C, 0x53f5630d, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, \
0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
//{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}

DEFINE_GUID( GUID_CLASS_USBHUB, 0xf18a0e88, 0xc30c, 0x11d0, 0x88, 0x15, 0x00, \
0xa0, 0xc9, 0x06, 0xbe, 0xd8);
DEFINE_GUID(GUID_CLASS_USB_DEVICE, 0xA5DCBF10L, 0x6530, 0x11D2, 0x90, 0x1F, 0x00, \
0xC0, 0x4F, 0xB9, 0x51, 0xED);

void __fastcall TfrmMain::FormCreate(TObject *Sender)
{
//注册USB响应事件；
HFONT hFont;
HIMAGELIST himl;
HICON hicon;
DEV_BROADCAST_DEVICEINTERFACE broadcastInterface;


// Register to receive notification when a USB device is plugged in.
broadcastInterface.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE);
broadcastInterface.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;

//memcpy( &(broadcastInterface.dbcc_classguid), &(GUID_CLASS_USB_DEVICE), sizeof(struct _GUID));
memcpy( &(broadcastInterface.dbcc_classguid), &(GUID_CLASS_SCSI_CDROM_C), sizeof(struct _GUID));

gNotifyDevHandle = RegisterDeviceNotification(Handle, &broadcastInterface, DEVICE_NOTIFY_WINDOW_HANDLE);

// Now register for Hub notifications.
//memcpy(&(broadcastInterface.dbcc_classguid), &(GUID_CLASS_USBHUB), sizeof(struct _GUID));
}

//---------------------------------------------------------------------------
//光盘信息变化；
int __fastcall TfrmMain::OnDeviceChgMsg(TMessage &Message)
{
switch (Message.WParam)
{
case DBT_DEVICEARRIVAL:
ShowMessage("新插入了一項裝置!");
break;
case DBT_DEVICEREMOVECOMPLETE:
ShowMessage("卸除了一項裝置!");
break;
case DBT_DEVNODES_CHANGED:
ShowMessage("DBT_DEVNODES_CHANGED");
break;
}
return 0;
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
class TfrmMain : public TForm
{
//......
private:
//按钮动作
void __fastcall UIDownFileAction();//下方打开OUTPUT路径的按钮动作。
public: // User declarations
__fastcall TfrmMain(TComponent* Owner);

BEGIN_MESSAGE_MAP
MESSAGE_HANDLER(WM_DEVICECHANGE,TMessage, OnDeviceChgMsg)
END_MESSAGE_MAP(inherited)

};

代码参照的是USB影响的程序,不知道为什么不会响应光驱的; 怀疑很可能是GUID错了; 当时我把注册表里边光驱有关的GUID都试了,还是不行!
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wenyongjie 2008-12-19
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关注 帮顶~！
ooily 2008-12-19
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mark
iamhaiergg 2008-12-10
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关注 帮顶~！
xjq2003 2008-11-05
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学习了，说不定哪天我也用到这些代码
daily66 2008-11-05
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好贴！，顶
cczlp 2008-10-28
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#include <windows.h>

#include <dbt.h>



void Main_OnDeviceChange (HWND hwnd, WPARAM wParam, LPARAM lParam);

char FirstDriveFromMask (ULONG unitmask);  //prototype



/*------------------------------------------------------------------

   Main_OnDeviceChange (hwnd, wParam, lParam)



   Description

      Handles WM_DEVICECHANGE messages sent to the application's

      top-level window.

--------------------------------------------------------------------*/



void Main_OnDeviceChange (HWND hwnd, WPARAM wParam, LPARAM lParam)

{

   PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;

   char szMsg[80];



   switch(wParam)

   {

      case DBT_DEVICEARRIVAL:

         // Check whether a CD or DVD was inserted into a drive.

         if (lpdb -> dbch_devicetype == DBT_DEVTYP_VOLUME)

         {

            PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;



            if (lpdbv -> dbcv_flags & DBTF_MEDIA)

            {

               wsprintf (szMsg, "Drive %c: Media has arrived.\n",

                         FirstDriveFromMask(lpdbv ->dbcv_unitmask));



               MessageBox (hwnd, szMsg, "WM_DEVICECHANGE", MB_OK);

            }

         }

         break;



      case DBT_DEVICEREMOVECOMPLETE:

         // Check whether a CD or DVD was removed from a drive.

         if (lpdb -> dbch_devicetype == DBT_DEVTYP_VOLUME)

         {

            PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;



            if (lpdbv -> dbcv_flags & DBTF_MEDIA)

            {

               wsprintf (szMsg, "Drive %c: Media was removed.\n",

                         FirstDriveFromMask(lpdbv ->dbcv_unitmask));



               MessageBox (hwnd, szMsg, "WM_DEVICECHANGE", MB_OK);

            }

         }

         break;



      default:

           /*

              Process other WM_DEVICECHANGE notifications for other 

              devices or reasons.

           */ 

            ;

   }

}



/*------------------------------------------------------------------

   FirstDriveFromMask (unitmask)



   Description

     Finds the first valid drive letter from a mask of drive letters.

     The mask must be in the format bit 0 = A, bit 1 = B, bit 3 = C, 

     etc. A valid drive letter is defined when the corresponding bit 

     is set to 1.



   Returns the first drive letter that was found.

--------------------------------------------------------------------*/



char FirstDriveFromMask (ULONG unitmask)

{

   char i;



   for (i = 0; i < 26; ++i)

   {

      if (unitmask & 0x1)

         break;

      unitmask = unitmask >> 1;

   }



   return (i + 'A');

}
cczlp 2008-10-28
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必须放入光盘才会响应WM_DEVICECHANGE.
不用RegisterDeviceNotification, 会收到所有硬件设备的插拔信息
TripH0101 2008-10-28
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不明白，帮顶一下
fangsp 2008-10-28
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#include <windows.h>

#include <dbt.h>



void Main_OnDeviceChange (HWND hwnd, WPARAM wParam, LPARAM lParam);

char FirstDriveFromMask (ULONG unitmask);  //prototype



/*------------------------------------------------------------------

   Main_OnDeviceChange (hwnd, wParam, lParam)



   Description

      Handles WM_DEVICECHANGE messages sent to the application's

      top-level window.

--------------------------------------------------------------------*/



void Main_OnDeviceChange (HWND hwnd, WPARAM wParam, LPARAM lParam)

{

   PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;

   char szMsg[80];



   switch(wParam)

   {

      case DBT_DEVICEARRIVAL:

         // Check whether a CD or DVD was inserted into a drive.

         if (lpdb -> dbch_devicetype == DBT_DEVTYP_VOLUME)

         {

            PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;



            if (lpdbv -> dbcv_flags & DBTF_MEDIA)

            {

               wsprintf (szMsg, "Drive %c: Media has arrived.\n",

                         FirstDriveFromMask(lpdbv ->dbcv_unitmask));



               MessageBox (hwnd, szMsg, "WM_DEVICECHANGE", MB_OK);

            }

         }

         break;



      case DBT_DEVICEREMOVECOMPLETE:

         // Check whether a CD or DVD was removed from a drive.

         if (lpdb -> dbch_devicetype == DBT_DEVTYP_VOLUME)

         {

            PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;



            if (lpdbv -> dbcv_flags & DBTF_MEDIA)

            {

               wsprintf (szMsg, "Drive %c: Media was removed.\n",

                         FirstDriveFromMask(lpdbv ->dbcv_unitmask));



               MessageBox (hwnd, szMsg, "WM_DEVICECHANGE", MB_OK);

            }

         }

         break;



      default:

           /*

              Process other WM_DEVICECHANGE notifications for other 

              devices or reasons.

           */ 

            ;

   }

}



/*------------------------------------------------------------------

   FirstDriveFromMask (unitmask)



   Description

     Finds the first valid drive letter from a mask of drive letters.

     The mask must be in the format bit 0 = A, bit 1 = B, bit 3 = C, 

     etc. A valid drive letter is defined when the corresponding bit 

     is set to 1.



   Returns the first drive letter that was found.

--------------------------------------------------------------------*/



char FirstDriveFromMask (ULONG unitmask)

{

   char i;



   for (i = 0; i < 26; ++i)

   {

      if (unitmask & 0x1)

         break;

      unitmask = unitmask >> 1;

   }



   return (i + 'A');

}
Waiting4you 2008-10-14
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奇怪，偶不用RegisterDeviceNotification也会收到WM_DEVICECHANGE消息，不过要插入光盘才行，在没光盘的情况下打开关闭光驱没反应。
Robin 2008-10-14
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再试一试先!
Nepalon 2008-10-14
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下面这个肯定可以，刚试过：
DEFINE_GUID (GUID_DEVCLASS_CDROM, 0x4D36E965, 0xE325, 0x11CE, 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18);
Robin 2008-10-14
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/*++ BUILD Version: 0001 // Increment this if a change has global effects

Copyright 1992 - 1998 Microsoft Corporation

Module Name:

devguid.h

Abstract:

Defines GUIDs for device classes used in Plug & Play.

Author:

Lonny McMichael (lonnym) 30-Aug--1995

Revision History:

--*/


DEFINE_GUID( GUID_DEVCLASS_1394, 0x6bdd1fc1L, 0x810f, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );
DEFINE_GUID( GUID_DEVCLASS_ADAPTER, 0x4d36e964L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_CDROM, 0x4d36e965L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_COMPUTER, 0x4d36e966L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_DECODER, 0x6bdd1fc2L, 0x810f, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );
DEFINE_GUID( GUID_DEVCLASS_DISKDRIVE, 0x4d36e967L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_DISPLAY, 0x4d36e968L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_FDC, 0x4d36e969L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_GPS, 0x6bdd1fc3L, 0x810f, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );
DEFINE_GUID( GUID_DEVCLASS_HDC, 0x4d36e96aL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_IMAGE, 0x6bdd1fc4L, 0x810f, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );
DEFINE_GUID( GUID_DEVCLASS_INFRARED, 0x6bdd1fc5L, 0x810f, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );
DEFINE_GUID( GUID_DEVCLASS_KEYBOARD, 0x4d36e96bL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_LEGACYDRIVER, 0x8ecc055dL, 0x047f, 0x11d1, 0xa5, 0x37, 0x00, 0x00, 0xf8, 0x75, 0x3e, 0xd1 );
DEFINE_GUID( GUID_DEVCLASS_MEDIA, 0x4d36e96cL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_MODEM, 0x4d36e96dL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_MONITOR, 0x4d36e96eL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_MOUSE, 0x4d36e96fL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_MTD, 0x4d36e970L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_MULTIFUNCTION, 0x4d36e971L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_NET, 0x4d36e972L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_NETCLIENT, 0x4d36e973L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_NETSERVICE, 0x4d36e974L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_NETTRANS, 0x4d36e975L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_NODRIVER, 0x4d36e976L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_PARALLEL, 0x811fc6a5L, 0xf728, 0x11d0, 0xa5, 0x37, 0x00, 0x00, 0xf8, 0x75, 0x3e, 0xd1 );
DEFINE_GUID( GUID_DEVCLASS_PCMCIA, 0x4d36e977L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_PORTS, 0x4d36e978L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_PRINTER, 0x4d36e979L, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_PRINTERUPGRADE, 0x4d36e97aL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_SCSIADAPTER, 0x4d36e97bL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_SOUND, 0x4d36e97cL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_STILLIMAGE, 0x6bdd1fc6L, 0x810f, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );
DEFINE_GUID( GUID_DEVCLASS_SYSTEM, 0x4d36e97dL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_TAPEDRIVE, 0x6d807884L, 0x7d21, 0x11cf, 0x80, 0x1c, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_UNKNOWN, 0x4d36e97eL, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 );
DEFINE_GUID( GUID_DEVCLASS_VOLUME, 0x71a27cddL, 0x812a, 0x11d0, 0xbe, 0xc7, 0x08, 0x00, 0x2b, 0xe2, 0x09, 0x2f );

GUID_DEVCLASS_CDROM-用了这个还是不行!
fangsp 2008-10-14
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我也觉得你GUID错了
fangsp 2008-10-14
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你把你的机器重新启动一遍
然后再Debug
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