I Send MCIWNDM_OPEN.
Then I receive MCWNDM_GETMODE.
But I get MCI_MODE_NOT_READY instead of MCI_MODE_OPEN?
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I Send MCIWNDM_OPEN.
Then I receive MCWNDM_GETMODE.
But I get MCI_MODE_NOT_READY instead of MCI_MODE_OPEN?
It seems that MCIWNDM_OPEN is ok because it returns 0.
After MCIWND_OPEN I send MCIWNDM_GETDEVICEID.
If I use deviceid for any MCI_ message I get a return of invalid ID.
So right after MCIWNDM_OPEN I tried MCIWNDM_GETMODE.
And GETMODE returns NOT_READY;
You may want to post you actual code to let us not guess but be sure what you do...