The IOCTL_STORAGE_CHECK_VERIFY DeviceIoControl operation determines whether a device’s media is accessible; for example, whether the media is in the device.
dwIoControlCode = IOCTL_STORAGE_CHECK_VERIFY ; // operation code lpInBuffer = NULL; // address of input buffer; not used; must be NULL nInBufferSize = 0; // size of input buffer; not used; must be zero lpOutBuffer = NULL; // address of output buffer; not used; must be NULL nOutBufferSize = 0; // size of output buffer; not used; must be zero lpBytesReturned; // address of actual bytes of output
If the operation succeeds and the device media is accessible, DeviceIoControl returns a nonzero value.
If the operation fails, DeviceIoControl returns zero.
file: /Techref/os/win/api/win32/func/src/f51_5.htm, 2KB, , updated: 2000/4/7 11:19, local time: 2024/11/4 22:24,
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