应用层调用接口修改输出显示方式 ExtEscape

示例代码

以下的宏定义可以在wince6.0的bsp找到

#define DRVESC_OUTPUT_BASE (0x00020100)

#define DRVESC_OUTPUT_RGB (DRVESC_OUTPUT_BASE+0)

#define DRVESC_OUTPUT_TV (DRVESC_OUTPUT_BASE+1)

#define DRVESC_OUTPUT_SWITCH (DRVESC_OUTPUT_BASE+2)

#define DRVESC_TV_DMA_DISABLE (DRVESC_OUTPUT_BASE+10)

#define DRVESC_TV_DMA_PRIMARY (DRVESC_OUTPUT_BASE+11)

#define DRVESC_TV_DMA_OVERLAY (DRVESC_OUTPUT_BASE+12)

#ifndef METHOD_BUFFERED

#define METHOD_BUFFERED (0)

#endif

#ifndef FILE_ANY_ACCESS

#define FILE_ANY_ACCESS (0)

#endif

#ifndef CTL_CODE

#define CTL_CODE(DeviceType, Function, Method, Access) (((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))

#endif

#define FILE_DEVICE_AUDIOSYS 0x8235

#define IOCTL_AUDIOSYS_SELECT_FM CTL_CODE(FILE_DEVICE_AUDIOSYS, 12, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_AUDIOSYS_SELECT_FM_RECIVE CTL_CODE(FILE_DEVICE_AUDIOSYS, 13, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_AUDIOSYS_SELECT_WCDMA_EAR_HF CTL_CODE(FILE_DEVICE_AUDIOSYS, 14, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_AUDIOSYS_SELECT_AVIN CTL_CODE(FILE_DEVICE_AUDIOSYS, 15, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_AUDIOSYS_SELECT_AVOUT CTL_CODE(FILE_DEVICE_AUDIOSYS, 16, METHOD_BUFFERED, FILE_ANY_ACCESS)

void Cav_outDlg::OnBnClickedButton1()

{

HDC hdc;

int EscCode = 6301;

hdc = ::GetDC(NULL);

if (ExtEscape(hdc, 8,sizeof(EscCode), (LPSTR)&EscCode, 0,NULL))

{

ExtEscape(hdc, DRVESC_OUTPUT_TV, 0, NULL, 0, NULL);

//RETAILMSG(1,(TEXT("6410 support EscCode\r\n")));

}

::ReleaseDC(NULL, hdc);

TurnOnAudioToAVOUT(TRUE);

}

void Cav_outDlg::OnBnClickedButton2()

{

// TODO: Add your control notification handler code here

HDC hdc;

int EscCode = 6301;

hdc = ::GetDC(NULL);

if (ExtEscape(hdc, 8,sizeof(EscCode), (LPSTR)&EscCode, 0,NULL))

{

ExtEscape(hdc, DRVESC_OUTPUT_RGB, 0, NULL, 0, NULL);

//RETAILMSG(1,(TEXT("6410 support EscCode\r\n")));

}

::ReleaseDC(NULL, hdc);

TurnOnAudioToAVOUT(FALSE);

}