[ Каскадный ] · Стандартный · Линейный+ VCD player ?

[anton]

privet vsem ,

koroche seichas ya ispol'zuu WinDVD dlya proigrovaniya VCD, no vot takaya ne zadacha poluchaetsya, on pochemu to mnogie moi VCD ne chochet igrat' ,tak vot sam vopros, kakoi eshe est' choroshiy, ne bol'shoi , player, kotoriy proigroval VCD automatom , nu ili cherez commandnuu stroku "player d:\" tipa tak ... ?

spasibo ...

------------------
ICQ# 20553228

RDA Chat : irc.othersideirc.net
channel #RDA
OR
http://www.antonr.com/rda/jpilot
Everybody is welcome :)

[mik]

anton, держи работающий код. Сам писал, так что проверено - мин нет.
В Builder'е для отлова одиночных messag'ей лучше всего использовать макро BEGIN_MESSAGE_MAP - END_MESSAGE_MAP

code:

---

1) Create new application in Builder
2) Place TMemo component on the form Form1
3) Copy message handler declaration and implementation from the code below
*
*
************************* Unit1.h *******************************
*
*
//---------------------------------------------------------------------------
#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:	// IDE-managed Components
        TMemo *Memo1;
private:	// User declarations
        void __fastcall WMDeviceChange(TMessage &Msg);  // this is declaration for WM_DEVICECHANGE message handler
        BEGIN_MESSAGE_MAP
           VCL_MESSAGE_HANDLER(WM_DEVICECHANGE, TMessage, WMDeviceChange)
        END_MESSAGE_MAP(TForm)
public:		// User declarations
        __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif
********************** End of Unit1.h ***************************
*
*================================================================
*
*
*
************************ Unit1.cpp ******************************
*
*
//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
#include <dbt.h>    // <<<<-------- DO NOT FORGET TO INCLUDE THIS!!!!!!!!
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
//
// This function is executed every time when WM_DEVICECHANGE message arrives from Windows
//
void __fastcall TForm1::WMDeviceChange(TMessage &Msg)
{
  PDEV_BROADCAST_HDR pdbch;        // structure that contains information about the device affected by a WM_DEVICECHANGE
  PDEV_BROADCAST_VOLUME pdbcv;     // structure that contains information about a logical volume
  switch (Msg.WParam)
  {
     case DBT_DEVICEARRIVAL:            // system detected a new device
          pdbch = (PDEV_BROADCAST_HDR)(Msg.LParam);
          if (pdbch->dbch_devicetype == DBT_DEVTYP_VOLUME)
          {
             pdbcv = (PDEV_BROADCAST_VOLUME) pdbch;
             if (pdbcv->dbcv_flags == DBTF_MEDIA)
             {
                // pdbcv->dbcv_unitmask identifies which logical drive
                // Each bit in the mask corresponds to one logical drive.
                // Bit 0 represents drive A, bit 1 drive B, and so on
                // On my system CD-ROM is drive F: so I will check this
                if (pdbcv->dbcv_unitmask & 0x20) // drive F:
                   Memo1->Lines->Add("Disk was inserted in drive F:");
             }
          }
          break;
     case DBT_DEVICEREMOVECOMPLETE:     // device is gone
          pdbch = (PDEV_BROADCAST_HDR)(Msg.LParam);
          if (pdbch->dbch_devicetype == DBT_DEVTYP_VOLUME)
          {
             pdbcv = (PDEV_BROADCAST_VOLUME) pdbch;
             if (pdbcv->dbcv_flags == DBTF_MEDIA && pdbcv->dbcv_unitmask & 0x20) // drive F:
                Memo1->Lines->Add("Disk was removed from drive F:");
          }
          break;
     default:
          break;
  }
}
//---------------------------------------------------------------------------
********************* End of Unit1.cpp **************************

---