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dorgant

46 Posts
Posted - 07 Aug 2003 :  13:05:36  Show Profile  Email Poster
I looked at the code in the sys_snds.cpp sample and on the net. I got the following for c#. I run it and don't hear anything. Any suggestions appreciated. PS - I don't have a hearing problem ;)

public enum BeepType
{
SimpleBeep = -1,
IconAsterisk = 0x00000040,
IconExclamation = 0x00000030,
IconHand = 0x00000010,
IconQuestion = 0x00000020,
Ok = 0x00000000,
}
[DllImport("coredll.dll")]
static extern int MessageBeep(UInt32 beepType);

for(int i = 0; i < 100; ++i)
// BeepType.IconExclamation is also silent
MessageBeep((uint)BeepType.Ok);

ctacke

877 Posts
Posted - 11 Aug 2003 :  13:26:36  Show Profile  Email Poster
First, I see from some of your other posts you didn't have speakers hooked up, so checking that will be step 1.

Once you've got speakers hooked up, you can play a "beep" either through P/Invoking MessageBeep or, for more control, PlaySound. The declarations for both are as follows:


public enum SoundFlags : uint
{
	Alias		= 0x00010000,
	Filename	= 0x00020000,
	Resource	= 0x00040004,   
	Synchronous	= 0x00000000,   
	ASynchronous	= 0x00000001,   
	NoDefault	= 0x00000002,   
	Memory		= 0x00000004,   
	Loop		= 0x00000008,   
	NoStop		= 0x00000010,   
	NoWait		= 0x00002000   
}

public enum BeepType : uint
{
	Default		= 0xFFFFFFFF,
	OK		= 0x00000000,
	Hand		= 0x00000010,
	Question	= 0x00000020,
	Exclamation	= 0x00000030,
	Asterisk	= 0x00000040
}

[ DllImport("coredll.dll", EntryPoint="PlaySoundW", SetLastError=true) ]
public extern static int PlaySound(String lpszName, IntPtr hModule, SoundFlags dwFlags);

[ DllImport("coredll.dll", EntryPoint="MessageBeep", SetLastError=true) ]
public extern static int MessageBeep(BeepType uType);
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